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Low Lights + AI Servo, how?

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Olga Johnson said:
Kevin Vian said:
The big question now is, does the 10D operate the same with CF4-1
when using AI Servo as it does with CF4-3 when using AI Servo?
Click to expand...
Yes, it does. The difference between CF4-1 and CF4-3 is in the
exposure. CF4-1 sets exposure at the half-button press; CF4-3 sets
exposure at full button press.

Olga
Click to expand...
I figured it must be something like that, but I don't have my camera with me to check. The more I thought about it, the more uncertain I was.

--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
 
VG said:
Kevin Vian said:
DavidP said:
Kevin Vian said:
The big question now is, does the 10D operate the same with CF4-1
when using AI Servo as it does with CF4-3 when using AI Servo?
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
Click to expand...
--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
Click to expand...
Click to expand...
--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
 
VG said:
Kevin,
CF4-1 and CF4-3 don't operate the same. CF4-1 locks the AE at *
press and CF4-3 doesn't lock the AE until shutter press.
Click to expand...
On my 10D CF4-1 locks the AF at * press, which agrees with what the manual says. "Pressing the button focuses the subject, while pressing the shutter button halfway sets the AE lock.

Olga
 
With CF4-1, your 10D locks AF when you PRESS the * button?

On the 1D, with CF4-1, pressing (and holding) the * button is what allows you to AF. As soon as you let off the * button, the AF quits working.
Olga Johnson said:
On my 10D CF4-1 locks the AF at * press, which agrees with what the
manual says. "Pressing the button focuses the subject, while
pressing the shutter button halfway sets the AE lock.
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
 
DavidP said:
With CF4-1, your 10D locks AF when you PRESS the * button?
Click to expand...
Yes.
DavidP #28649 said:
On the 1D, with CF4-1, pressing (and holding) the * button is what
allows you to AF. As soon as you let off the * button, the AF
quits working.
Click to expand...
I use CF4-1 a lot with my landscapes. With One Shot mode, the * sets the focus, and without holding it down I can recompose and shoot. In AI-servo, you have to keep holding the * button if you want it to track your moving subject.

Olga
 
Yep, that's the way it works.
  • isn't really locking AF. It activates AF. If you're in One-Shot, this obviously results in an AF lock (assuming you give it something it can lock onto, of course - LOL).
I tend not to use One-Shot mode. Unless I'm actually doing chart testing.
Olga Johnson said:
I use CF4-1 a lot with my landscapes. With One Shot mode, the *
sets the focus, and without holding it down I can recompose and
shoot. In AI-servo, you have to keep holding the * button if you
want it to track your moving subject.
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
 
DavidP said:
Yep, that's the way it works.
  • isn't really locking AF. It activates AF. If you're in
One-Shot, this obviously results in an AF lock (assuming you give
it something it can lock onto, of course - LOL).
Click to expand...
Even in AI-Servo, if your subject isn't moving, the AF is set and locked at the hit of the * key. Since AF doesn't change unless you either re-hit the * button or hold it down, I would say that it is locked. :-)

Olga
 
I would say that the AF is lock at the RELEASE of the * button, not at the HITTING of the * button.

Really, though, I say that AF is activated by pressing , and deactivated by releasing . In AI-Servo, there really isn't a thing as AF-lock. You're just turning it on and turning it off.

But as long as one knows what it does, I guess that's all that matters. ;)
Olga Johnson said:
Even in AI-Servo, if your subject isn't moving, the AF is set and
locked at the hit of the * key. Since AF doesn't change unless you
either re-hit the * button or hold it down, I would say that it is
locked. :-)
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
 
Yep, that's how mine works. It also worlked that way before the upgrade to v2.0 and I am still trying to figure out what (if anything) Canon is supposed to have fixed.

Jack
DavidP said:
Really, though, I say that AF is activated by pressing , and
deactivated by releasing . In AI-Servo, there really isn't a
thing as AF-lock. You're just turning it on and turning it off.

But as long as one knows what it does, I guess that's all that
matters. ;)
Olga Johnson said:
Even in AI-Servo, if your subject isn't moving, the AF is set and
locked at the hit of the * key. Since AF doesn't change unless you
either re-hit the * button or hold it down, I would say that it is
locked. :-)
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
Click to expand...
 
I haven't seen ANYBODY yet complain about how it worked under version1, and how version2 fixed it.

It's almost like there must've been just some occurences of CF4 not woriking right . . . maybe related to other settings.

It'd be nice to know a bit more about it, that's for sure.
Jack DuMoulin said:
Yep, that's how mine works. It also worlked that way before the
upgrade to v2.0 and I am still trying to figure out what (if
anything) Canon is supposed to have fixed.
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
 
DavidP said:
I haven't seen ANYBODY yet complain about how it worked under
version1, and how version2 fixed it.

It's almost like there must've been just some occurences of CF4
not woriking right . . . maybe related to other settings.

It'd be nice to know a bit more about it, that's for sure.
Click to expand...
In a post I directed to Chuck Westfall at fredmiranda.com, I aksed him if he could explain what the changes are relating to CF4 with v2.0.0 (after asking about the differences between CF4-1 and 3, which I think we have figured out), and I am anxious to read his reply.

I have used CF4-1 from the start with my 10D, and have never encountered any problems or found anything that didn't seem right. I asked many who updated their firmware if they had noticed any differences, and no one could find anything different with CF4. I am a strict believer that "if it ain't broke, don't fix it', so I am still operating my 10D with fw v1.0.0, so I haven't been able to experiement to try and figure it out myself.

Hopefully Chuck will answer the questions I posed. See my post below for a link to my 'questin to Chuck' post at fredmiranda.

--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
 
Here's a summary (I think) of what's been discussed:

Method/Exposure determined/Focus determined
---------------------------------------------------------------------
a) CF4-0 with AI Servo/at full shutter press/at half shutter press
b) CF4-1 with AI Servo/at half shutter press/while ' ' is pressed and held
c) CF4-3 with AI Servo/at full shutter press/while ' ' is pressed and held
d) CF4-0 with One Shot/at full shutter press/at half shutter press
e) CF4-1 with One Shot/at half shutter press/when ' ' is pressed and released
f) CF4-3 with One Shot/at full shutter press/when ' ' is pressed and released

Advantages:

a) Does not require a thumb (good for dogs with 10D). Don't have to know where the "menu" button is.

b) Allows for recomposition of image after having locked metering on a specific point. Can focus using recomposed image.
c) Allows independent control of focus
d) same as "a"
e) same as "b"
f) same as "c"

Feel free to suggest other advantages for each method and point out any corrections that should be made to the Method table.
Olga Johnson said:
Kevin Vian said:
The big question now is, does the 10D operate the same with CF4-1
when using AI Servo as it does with CF4-3 when using AI Servo?
Click to expand...
Yes, it does. The difference between CF4-1 and CF4-3 is in the
exposure. CF4-1 sets exposure at the half-button press; CF4-3 sets
exposure at full button press.

Olga
Click to expand...
 
I've been using the CF4-1 function to shoot my kids' hockey games, and this thread has been great. It's cleared up a lot of questions for me. This feature was one of the reasons I bought the 10D instead of the 300D, and now I understand it much better.

But earlier, I think it was Kevin that said the procedure is to release * just before fully pressing the shutter.

Why is that? I've been leaving the * depressed.

Also, regarding firmware, my 10D is less than 2 weeks old, and it has firmware 1.0.1. Does this mean it was manufactured long ago, or are none of the 10D's shipping with version 2 yet?

Thanks!

Mark Salvetti
Olga Johnson said:
VG said:
Kevin,
CF4-1 and CF4-3 don't operate the same. CF4-1 locks the AE at *
press and CF4-3 doesn't lock the AE until shutter press.
Click to expand...
On my 10D CF4-1 locks the AF at * press, which agrees with what the
manual says. "Pressing the button focuses the subject, while
pressing the shutter button halfway sets the AE lock.

Olga
Click to expand...
 
Guy Davis said:
Here's a summary (I think) of what's been discussed:

Method/Exposure determined/Focus determined
---------------------------------------------------------------------
a) CF4-0 with AI Servo/at full shutter press/at half shutter press
b) CF4-1 with AI Servo/at half shutter press/while ' ' is pressed
and held
c) CF4-3 with AI Servo/at full shutter press/while ' ' is pressed
and held
d) CF4-0 with One Shot/at full shutter press/at half shutter press
e) CF4-1 with One Shot/at half shutter press/when ' ' is pressed
and released
f) CF4-3 with One Shot/at full shutter press/when ' ' is pressed
and released

Advantages:
a) Does not require a thumb (good for dogs with 10D). Don't have to
know where the "menu" button is.
b) Allows for recomposition of image after having locked metering
on a specific point. Can focus using recomposed image.
c) Allows independent control of focus
d) same as "a"
e) same as "b"
f) same as "c"

Feel free to suggest other advantages for each method and point out
any corrections that should be made to the Method table.
Click to expand...
This looks to be about right! I think it is also important to note that AE operates the same with AI Focus as it does with One Shot (at least I'm pretty sure).

What I am not sure about, is Item f . Have you tried this to verify that no matter the AF mode, AE occurs with a full press? Could you let us know?

Thanks,

--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
 
Mark Salvetti said:
I've been using the CF4-1 function to shoot my kids' hockey games,
and this thread has been great. It's cleared up a lot of questions
for me. This feature was one of the reasons I bought the 10D
instead of the 300D, and now I understand it much better.

But earlier, I think it was Kevin that said the procedure is to
release * just before fully pressing the shutter.
Click to expand...
It is not necessary to release the * button before fully pressing the release. It depends on your shoot style (or at least on the moment). If you are setting focus, then recomposing, then yes, you should release the * button. However, if you are focus tracking the subject, as in using AI Servo (or even AI Focus), and you keep the focus point on the subject, it is not necessary to release the * button.

DaividP stated that he does indeed release the * button, quickly recompose and take the shot while the subject is still in focus.

If I am shooting a stationary subject, or one with slow motion, I will also use this method. However, if I am shooting a fast moving object, such as a motorcycle or car, I do not relase the * button, because the subject would quickly move out of focus.
Mark Salvetti said:
Why is that? I've been leaving the * depressed.

Also, regarding firmware, my 10D is less than 2 weeks old, and it
has firmware 1.0.1. Does this mean it was manufactured long ago,
or are none of the 10D's shipping with version 2 yet?

Thanks!

Mark Salvetti
Click to expand...
This doesn't mean that it has been manufactured 'that' long ago, but perhaps within a few months, and it's no big deal really. If the fixes made in v2.0.0 directly affect you use of the camera, I qould consider updating your firmware.

I bought my 10D end of April, and still have v1.0.0 without any problems. None of the fw upgrades had any direct affect on my usage of the 10D, therefore, I dare not fix what is not broke!

--
Kevin V

One of the greatest things I have ever learned is to:

RTFM

http://www.pbase.com/kevinv
 
If you're using AI-Servo and the * button to activate focus, you do NOT want to release the * button before exposure UNLESS you recompose.

IF you recompose, and are using a single AF point to track, then you will probably need to release the * button to deactive AF, since you'll be moving the AF point off of the main subject.

As long as the subject isn't moving too fast (relative to your speed in recomposition and DOF), then you shouldn't have many problems doing this.
Mark Salvetti said:
But earlier, I think it was Kevin that said the procedure is to
release * just before fully pressing the shutter.

Why is that? I've been leaving the * depressed.
Click to expand...
--
http://www.outboundmusic.com
Your link to independent music!
 
OK, thanks everyone. This makes sense to me.

Mark
DavidP said:
If you're using AI-Servo and the * button to activate focus, you do
NOT want to release the * button before exposure UNLESS you
recompose.

IF you recompose, and are using a single AF point to track, then
you will probably need to release the * button to deactive AF,
since you'll be moving the AF point off of the main subject.

As long as the subject isn't moving too fast (relative to your
speed in recomposition and DOF), then you shouldn't have many
problems doing this.
Click to expand...
 
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