Sent 10D for focus adjust, waiting for results

Ira Blumberg

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After spending 5 months using my 10D and shooting about 700 frames I was concerned about focus accuracy (the frenzy of posts here didn't help either). I have some shots where the intended subject is definitely in focus (mostly at smaller apertures) and many others where it is not. By contrast, I had a much higher ratio of in focus shots with my D60 and the same lenses. I of course did various focus tests and got results showing slight back focus, but it appeared that the focus point was still just barely within the zone of focus.

The thing that pushed me over the edge was that last weekend I took about 70 shots of my son at a park. It was quite sunny and I was shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using my 24-70L mostly at 70 with a few shots ranging from 35-55. I was between 10 and 30 feet away. I used both AI servo and single shot AF. In some shots my son was quite still, in others he was walking around. For the action shots, I used continuous shooting mode, taking between 3 and 9 frames at a time. When I got home, there was not a single in focus shot. In most shots, my son was sitting / walking on a brick surface, so it was easy to judge the focus point and the bricks behind my son were in very sharp focus (thus this wasn't a matter of camera shake, etc.). This was particularly clear when I applied some aggressive USM in PS. The bricks behind my son got much sharped looking while my son's shirt and the brick in front of him stayed fairly fuzzy. I was using the center focus point only and mostly pointed it at my son's shirt which had nice high contrast stripes that filled the focus point (so the camera should not have gone searching for any other edges on which to focus). Note that I used relatively large apertures precisely because I wanted shallow DOF, which is what I got. I would however have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from the Canon service centers, I decided it was time to send in the camera and see if I get improved focus results. I called Canon's tech support line as instructed by the Canon website. The tech asked me a few questions about which lenses I was using (Canon or 3d party, etc.) and whether I had used these lenses with any other bodies. I explained that all my lenses were Canon (50 1.4, 24-70 2.8, 70-200 4) and that they had worked well with my D60. After a few minutes talking he told me to send in just the body. He said turn around time runs 10-15 business days. I hope it won't be that long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
Hi Ira,

I have read a lot of similar stories on the forums.

I'm sorry that your 10D does not perform well in the focus department.
I hope that the guys at Canon can adjust it.

I am on the verge of ordering a 10D and 2 lenses, and posts like yours make me quite anxious. What I cannot understand is how bodies like yours get thru' quality control. More so, when the Canon rep asked you to send in your 10D for checking and adjusting in such a nonchalant way, sounding pretty sure that the problem is not serious and can be fixed quite quickly.
(Honestly hope this is the case)

Wouldn't it keep a lot of people (including Canon) very happy if they checked the bodies BEFORE shipping?

Just my thoughts.

Best regards,
Ian
 
My turnaround time was 10 calendar days, after getting the same intial quote as you (10-15 business). I hope your turnaround and net results are the same as mine. I also hope it liberates you from nagging concern with the accuracy of your AF, as it did me. Now, I just shoot pictures. Do I still lose a couple frames per 100 due to focus issues? Sure. Is it better than any AF system I've used prior? Yep. No AF is perfect, but since I got mine back from service, I believe my copy is as good as a 10D can get.

Good luck!

Joe
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
--
http://www.pbase.com/misterpix
 
Ira...I will try to keep this short. There is no doubt in my mind that there are some good 10Ds and some bad. Mine is back in Irvine for the second time. I am not new to digital cameras and have a total of five. (my wife just found that out and didn't complain, good kid) Several things to watch for with Canon. I have three high end Canon lenses and one Tamron XR. Canon zeroed in on the Tamron lens and in a corressondence from their customer service department told me that the warranty might be void because of using a non Canon lens. In fact the Tamron lens performed every bit as good as the $1200 Canon lens. The other thing I am taking them to task on is that when the camera came back the first time the serial number was no longer legible on the camera case bottom. It probably happened during cleaning before sending the camera back. This is not acceptable because it looks as if it was tampered with or the camera spent 4 months in Iraq. If I wanted to sell the camera the obliterated s.n. could raise some questions. I have to throw this in.... I have several shoots coming up and bought the Nikon D100. (serious amateur) The D100 was taking excellent shots 30 minutes of the box. I plan on keeping the 10D, great camera....Just hope Canon can bring it up to my amateur standards.

Sy
 
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
There are quite a few owners of the 24-70L in Singapore who have complained of backfocusing.

I personally found that my 10D was spot-on with all my other lenses (50mm f1.4, 85mm f1.8, 70-200mm f2.8 IS USM, Sigma 105mm f2.8 macro). The 24-70L backfocused. This was especially noticeable at the 24mm end, at larger distances. It showed up on Francis Poon's chart, but if you were taking a wide angle shot of someone or a group of people more than 3 metres away, you did not need any chart to see that it usually focused on the background instead. The 70mm end of my camera was slightly backfocused, but not really noticeably so.

I got some hocus pocus about not taking group shots at f2.8 and how the light conditions were not good for testing AF (yeah, right, my S$2000 lens will only AF properly if the light conditions are ideal).

My lens has gone back to Japan, along with 2 or 3 others. Hopefully they'll be able to adjust it, or replace it.
 
You can relax. I had the same problems with my 10D. I sent it to Canon in Irvine, CA and when it returned everything was fine. I no longer worry about focus issues.

Now, when I get a bad picture, It's usually from following the bad advice I get from the people on this fourm.

Only kidding. About the advice that is. The camera works great.
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
I don't think that is the problem in my case. As I said, the 24-70 seemed to work fine with my D60. Also, I have similar back focus problems with my 70-200 f/4 that again were not present when used with my D60.

While the 10D is an improvement over the D60 in many ways, when my D60 was willing to focus (not often in low light) it seemed quite accurate. I hope with some adjustment, my 10D will reach that level of accuracy.

Ira
There are quite a few owners of the 24-70L in Singapore who have
complained of backfocusing.

I personally found that my 10D was spot-on with all my other lenses
(50mm f1.4, 85mm f1.8, 70-200mm f2.8 IS USM, Sigma 105mm f2.8
macro). The 24-70L backfocused. This was especially noticeable at
the 24mm end, at larger distances. It showed up on Francis Poon's
chart, but if you were taking a wide angle shot of someone or a
group of people more than 3 metres away, you did not need any chart
to see that it usually focused on the background instead. The 70mm
end of my camera was slightly backfocused, but not really
noticeably so.

I got some hocus pocus about not taking group shots at f2.8 and how
the light conditions were not good for testing AF (yeah, right, my
S$2000 lens will only AF properly if the light conditions are
ideal).

My lens has gone back to Japan, along with 2 or 3 others. Hopefully
they'll be able to adjust it, or replace it.
 
Please update us when the camera returns. My experiences with the AF have been similar (the D60 does seem to be more accurate) though the % of "in focus" shots are much higher than what you report. Still, the oof ones seem to occur with significant frequency and no obvious explanation and I have been contemplating sending the 10D in.
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
I'm interested in your outcome also.

I picked up a 24-70l last month. It is backfocusing. I thought, "No problem, I spent big bucks on this camera and lens, I'll send them in and get them fixed."

I also have a Sigma 70-200ex 2.8, so I checked it. Major front focus. I guess I need to send the 24-70 and 10D into Canon and get them squared away, then figure out how to get the Sigma fixed.

Brian
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
Sigma is actually much more accomodating about adjusting its lenses to work with newer Canon cameras than is Canon. I've read that Sigma will do this for free no matter how old the lens. Give them a call and check.

Meanwhile, good luck with your Canon adjustment.

Ira
I picked up a 24-70l last month. It is backfocusing. I thought,
"No problem, I spent big bucks on this camera and lens, I'll send
them in and get them fixed."

I also have a Sigma 70-200ex 2.8, so I checked it. Major front
focus. I guess I need to send the 24-70 and 10D into Canon and get
them squared away, then figure out how to get the Sigma fixed.

Brian
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 
How does one start the process to send equipment back for focus calibration? Is there a phone number to call? I have a 70-200 f4.0L that seems to back focus while doing AI servo AF. While shooting static objects the focus is fine but on moving subjects the focus point always seems to be where the action was vs. where it is.

Bruce
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
--
B Aoki
 
that suggested that for fairly fast moving objects, the first shot using AI would likely be out of focus, but that subsequent shots using continuous mode would be correctly focused. If that does not work, you can call for assistance or just send your equipment in with a detailed explanatory note. See http://www.powershot.com/powershot2/customer/service_eos.html for details, addresses and phone numbers. It does not appear that you are required to call before sending your equipment in for repair.

Ira
Bruce
After spending 5 months using my 10D and shooting about 700 frames
I was concerned about focus accuracy (the frenzy of posts here
didn't help either). I have some shots where the intended subject
is definitely in focus (mostly at smaller apertures) and many
others where it is not. By contrast, I had a much higher ratio of
in focus shots with my D60 and the same lenses. I of course did
various focus tests and got results showing slight back focus, but
it appeared that the focus point was still just barely within the
zone of focus.

The thing that pushed me over the edge was that last weekend I took
about 70 shots of my son at a park. It was quite sunny and I was
shooting at f4.5 and f5.6 at between 1/400 and 1/500. I was using
my 24-70L mostly at 70 with a few shots ranging from 35-55. I was
between 10 and 30 feet away. I used both AI servo and single shot
AF. In some shots my son was quite still, in others he was walking
around. For the action shots, I used continuous shooting mode,
taking between 3 and 9 frames at a time. When I got home, there was
not a single in focus shot. In most shots, my son was sitting /
walking on a brick surface, so it was easy to judge the focus point
and the bricks behind my son were in very sharp focus (thus this
wasn't a matter of camera shake, etc.). This was particularly clear
when I applied some aggressive USM in PS. The bricks behind my son
got much sharped looking while my son's shirt and the brick in
front of him stayed fairly fuzzy. I was using the center focus
point only and mostly pointed it at my son's shirt which had nice
high contrast stripes that filled the focus point (so the camera
should not have gone searching for any other edges on which to
focus). Note that I used relatively large apertures precisely
because I wanted shallow DOF, which is what I got. I would however
have preferred my intended subject to be within that DOF ;-)

Now that folks are reporting good results for focus correction from
the Canon service centers, I decided it was time to send in the
camera and see if I get improved focus results. I called Canon's
tech support line as instructed by the Canon website. The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
--
B Aoki
 
I had to go through the calibration routine twice with my 10D and lenses. The first time they didn't seem to take my complains seriously. "- Here is another one of those clumpsy prosumer wannabees. Why can't he just stay with his P&S!".

But that was back in the end of May, and I think they are much more alert to the AF problem now.

Good luck!

--
Tommy
 
I bought mine few weeks ago from B&H but shipped overseas to Poland where I live. I do have only 2 lenses and generally the AF looks either well or slightly FF (I'm not sure yet and have to make the proper test to realise).

I called Polish Canon authorised service and have been talked that not many custommers came with the 10D for anything with the camera (it's the only one authorised service in Poland) and in order to calibrate the AF they need only a single day and they do not open my camera at all just do it by computer connection.

Can anyone of you confirm me that they won't unscrew my camera body or open it any other way?

If unfortunatelly I confirm having slight FF issue I would prefer to go local service instead of shipping it overseas to USA for correction. On the other hand I wonder how precise the correction would be for the thechnician doing it for the first time maybe even with the service manual in front of him.

PS: of course they do not respect the USA warranty here in Europe so it will be paid service but not too expencive - some about $ 20.
 
In most case they just calibrate through connection to a computer.

If only there is physical misalignment they need to open the camera for a physical alignment.
I bought mine few weeks ago from B&H but shipped overseas to Poland
where I live. I do have only 2 lenses and generally the AF looks
either well or slightly FF (I'm not sure yet and have to make the
proper test to realise).

I called Polish Canon authorised service and have been talked that
not many custommers came with the 10D for anything with the camera
(it's the only one authorised service in Poland) and in order to
calibrate the AF they need only a single day and they do not open
my camera at all just do it by computer connection.

Can anyone of you confirm me that they won't unscrew my camera body
or open it any other way?

If unfortunatelly I confirm having slight FF issue I would prefer
to go local service instead of shipping it overseas to USA for
correction. On the other hand I wonder how precise the correction
would be for the thechnician doing it for the first time maybe even
with the service manual in front of him.

PS: of course they do not respect the USA warranty here in Europe
so it will be paid service but not too expencive - some about $ 20.
--
Nikon F100, Nikon FM3A, Canon EOS 1V
Olymbus 3030, Nikon 995, Canon G2
Radio call sign VR2XEE
Handheld ham transceiver - Yaesu VX-5
 
OK thanks,

are there any prior indications I could know what could be my case - phisical missalignement or better computer AF callibration only?

As I said I either have slight FF or do not need to calibrate at all 9not sure yet).
If only there is physical misalignment they need to open the camera
for a physical alignment.
I bought mine few weeks ago from B&H but shipped overseas to Poland
where I live. I do have only 2 lenses and generally the AF looks
either well or slightly FF (I'm not sure yet and have to make the
proper test to realise).

I called Polish Canon authorised service and have been talked that
not many custommers came with the 10D for anything with the camera
(it's the only one authorised service in Poland) and in order to
calibrate the AF they need only a single day and they do not open
my camera at all just do it by computer connection.

Can anyone of you confirm me that they won't unscrew my camera body
or open it any other way?

If unfortunatelly I confirm having slight FF issue I would prefer
to go local service instead of shipping it overseas to USA for
correction. On the other hand I wonder how precise the correction
would be for the thechnician doing it for the first time maybe even
with the service manual in front of him.

PS: of course they do not respect the USA warranty here in Europe
so it will be paid service but not too expencive - some about $ 20.
--
Nikon F100, Nikon FM3A, Canon EOS 1V
Olymbus 3030, Nikon 995, Canon G2
Radio call sign VR2XEE
Handheld ham transceiver - Yaesu VX-5
--
Bartek
 
Hi Ira

Any idea why the tech didn't want you to send in all your lenses with it? Was it because they worked fine with your D60?

I've been having the same problem (hit and miss AF), but have waited untill I get my last lens (for a while), and was then hoping to send them all in to get checked.

Rod
......The tech
asked me a few questions about which lenses I was using (Canon or
3d party, etc.) and whether I had used these lenses with any other
bodies. I explained that all my lenses were Canon (50 1.4, 24-70
2.8, 70-200 4) and that they had worked well with my D60. After a
few minutes talking he told me to send in just the body. He said
turn around time runs 10-15 business days. I hope it won't be that
long, but we will see.

I'll post a follow up once I get the camera back.

Ira
 

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