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infrared with 10D

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brsil

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I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense. Has anyone had any experience with this? What's suprised me is that you can't see thru the viewfinder with the filter on. I'm playing around in manual mode trying to get the right exposure. The TTL exposure meter is way off so its guess work as to trying to get the right exposure. Maybe I'm missing something but if anyone has any insight on this I sure would appreciate it.

thanks
 
Since IR is not within our visual range you will see very little if nothing in the viewfinder. Adjust your shutter speed down about 3 speeds (if the camera says 1/60 drop it to 1/8) as a starting point. IR will vary in intensity. Also, IR focuses at a different point from visable light, hence the little red marks on your lens. If you don't have the red marks, after the camera focuses, move the distance it focused on about 1/16 of an inch to the right.

I would suggest setting up your camera on a tripod and frame your shot without the filter on the lens. Focus your subject and flip the AF switch to manual and adjust the IR focus as above. Put the filter on and look at what the exposure is with the filter. Switch camera to manual. Increase that reading by 3 stops to provide more light (ie f/11 -> f/4 or 1/60 -> 1/8) as a starting point, and shoot. It's a pain but when you got it right you will get some interesting pictures.
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
 
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
I'm starting to get some images but they are soft and grainy...ISO 200, 8sec, f7.1....still experimenting but need some help!!!
 
Cover the viewfinder (with the cover on the canon strap or your own tape/solution).

Then try the TTL again.

When that fails to get you closer, just try 4 seconds at f/8 in daylight.
 
Try 1 sec, f4 and iso 800 or so, then look at the histogram and see if you start getting it somewhere in the middle of the range, not scewed all the way to the right... Keep trying, you will have good results with this wide lens...
 
glowluzid said:
Cover the viewfinder (with the cover on the canon strap or your own
tape/solution).

Then try the TTL again.

When that fails to get you closer, just try 4 seconds at f/8 in
daylight.
Click to expand...
I'll try that, thanks...also have vingnetting on upper right and left corners of the frame, maybe because I'm got it at 17mm...
 
RAW will give better results and apart from the obvious (Tripod) you should get some great results with the 10D.

Neat image may also help with the final result, although the picture I posted has had no noise reduction.

I love IR pictures and we have sold a number through our business.

Have fun, it is a great tool.
 
Marky boy said:
RAW will give better results and apart from the obvious (Tripod)
you should get some great results with the 10D.

Neat image may also help with the final result, although the
picture I posted has had no noise reduction.

I love IR pictures and we have sold a number through our business.

Have fun, it is a great tool.
Click to expand...
Thanks Marky, also had a question on the histogram, I seem to get a condensed reading where the only data will be in about the middle third of the graph. Thats the best exposure I can get so far. Is that what you're seeing?
 
The 17-40 looks to be a winner -- I have hand held a 67mm R72 filter up and no hot-spot in the center like my 24-85mm. I am awaiting my 77 to 67 step down ring. The 77mm R72 is $250! The 67mm was only $75 -- the 67mm filter will work just fine on the 17-40 w/10D because of the crop factor.

Look here for fantastic information on IR and the 10D:

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5182582

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5216393
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
 
RobE said:
Look here for fantastic information on IR and the 10D:

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5182582

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5216393

I just bought a 77mm R72 for 180.00, I can also use it on the 70-200f4 with an adaptor. I'm getting ready to try that next...
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
Click to expand...
 
But I plan to this coming weekend. The 50mm F/1.8 works great. I'm told the 28-135 IS does as well. So far I know of only the 50 F/1.4 and 24-85 that have the "hot spot" issue.
brsil said:
RobE said:
Look here for fantastic information on IR and the 10D:

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5182582

http://forums.dpreview.com/forums/read.asp?forum=1019&message=5216393

I just bought a 77mm R72 for 180.00, I can also use it on the 70-200f4 with an adaptor. I'm getting ready to try that next...
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
Click to expand...
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
 
WITH the R72 filter on, take a picture of a grey card or white sheet of paper -- use this image as the white balance. Makes a world of difference.
brsil said:
Marky boy said:
RAW will give better results and apart from the obvious (Tripod)
you should get some great results with the 10D.

Neat image may also help with the final result, although the
picture I posted has had no noise reduction.

I love IR pictures and we have sold a number through our business.

Have fun, it is a great tool.
Click to expand...
Thanks Marky, also had a question on the histogram, I seem to get a
condensed reading where the only data will be in about the middle
third of the graph. Thats the best exposure I can get so far. Is
that what you're seeing?
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
 
RobE said:
WITH the R72 filter on, take a picture of a grey card or white
sheet of paper -- use this image as the white balance. Makes a
world of difference.
Click to expand...
I tried it, also testing posting image
C:\WINDOWS\Desktop\infr.html
RobE said:
brsil said:
Marky boy said:
RAW will give better results and apart from the obvious (Tripod)
you should get some great results with the 10D.

Neat image may also help with the final result, although the
picture I posted has had no noise reduction.

I love IR pictures and we have sold a number through our business.

Have fun, it is a great tool.
Click to expand...
Thanks Marky, also had a question on the histogram, I seem to get a
condensed reading where the only data will be in about the middle
third of the graph. Thats the best exposure I can get so far. Is
that what you're seeing?
Click to expand...
--
(See profile for equipment I own -- questions welcome.)
Click to expand...
 
Ben Strasser said:
Since IR is not within our visual range you will see very little if
nothing in the viewfinder. Adjust your shutter speed down about 3
speeds (if the camera says 1/60 drop it to 1/8) as a starting
point. IR will vary in intensity. Also, IR focuses at a different
point from visable light, hence the little red marks on your lens.
If you don't have the red marks, after the camera focuses, move the
distance it focused on about 1/16 of an inch to the right.
I would suggest setting up your camera on a tripod and frame your
shot without the filter on the lens. Focus your subject and flip
the AF switch to manual and adjust the IR focus as above. Put the
filter on and look at what the exposure is with the filter. Switch
camera to manual. Increase that reading by 3 stops to provide more
light (ie f/11 -> f/4 or 1/60 -> 1/8) as a starting point, and
shoot. It's a pain but when you got it right you will get some
interesting pictures.
Click to expand...
YOu are able to shoot IR with something like a G1 without manualing focusing, but with the Oly E10 and D30 I do exactly the same. I have always used a tripod--I generally focus, put in manual, adjust slightly, put on filter (cover viewfinder) and shoot.

Diane
--
Diane B
http://www.pbase.com/picnic/galleries
B/W lover, but color is seducing me
 
Marky boy wrote:

I like that very much--nice composition. I tend to like my IR in b/w, but that's strictly personal. I have felt deprived of shooting in IR so am waiting for my Wratten 89B gel for my Cokin. Right now I have only my 50mm with my old E10 Hoya R72 and a stepup ring. And--I'm waiting for some SUN LOL.
--
Diane B
http://www.pbase.com/picnic/galleries
B/W lover, but color is seducing me
 
I have shot a lot of infrared on the E20 and S2 cameras and now I am working on the 10D. The only thing is I have not gotten my cable release yet. Its is IR sensitive but not like the fuji S2. The S2 would autofocus and autometer through the IR filter. You could shoot it on any mode. The 10D will not autometer correctly through an IR filter so you are going to have to shoot manual. I dont think even +2 ev would be enough to get a good exposure on aperture mode.

Try around 5 sec at f11 on a sunny day and cover the viewfinder. That should get you close.

The best IR filter setup I have used is a Cokin P, because you can slide the filter up and down to compose the shot, without a lot of screwing on and off with the filter. I have been using a gel filter lately, its just okay (cheap), but am waiting on a quote from a glass company on a square R72 glass filter for the P system. It should be around $60-70.
brsil said:
I'm in process of trying a Hoya R72 filter on a 17-40 f4L lense.
Has anyone had any experience with this? What's suprised me is that
you can't see thru the viewfinder with the filter on. I'm playing
around in manual mode trying to get the right exposure. The TTL
exposure meter is way off so its guess work as to trying to get the
right exposure. Maybe I'm missing something but if anyone has any
insight on this I sure would appreciate it.

thanks
Click to expand...
 
Diane B said:
Marky boy wrote:
I like that very much--nice composition. I tend to like my IR in
b/w, but that's strictly personal. I have felt deprived of
shooting in IR so am waiting for my Wratten 89B gel for my Cokin.
Right now I have only my 50mm with my old E10 Hoya R72 and a stepup
ring. And--I'm waiting for some SUN LOL.
--
Diane B
http://www.pbase.com/picnic/galleries
B/W lover, but color is seducing me
Click to expand...
Thanks Diane for your comments, I love the feel of IR and the anticipation of getting back to see the results.
 
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