LOG IN    OR   REGISTER TO FORUMS


Infrared photography with Canon 7D help?

FORUMS Photography Talk by Genre Still Life, B/W & Experimental Talk
Thread started 20 Nov 2010 (Saturday) 13:41   
LIST NEARBY THREADS
 
sweitzen
Hatchling
Joined Nov 2010
4 posts
[MORE/SHARE]

Does anybody here shoot in infrared with an UNMODIFIED Canon 7D?

I just got an infrared filter, and tried a couple shots (Manual mode, f/4 15", ISO400, tripod -- sufficient to see a fairly clear image in the LCD) . However, I'm not getting the dark skies and white foliage effect. Post procession was essentially nothing but desaturating 100% to create a B&W.

Comparison of identical shot without filter at proper exposure, also 100% desaturated looks nearly identical.

My thoughts are:
1. There's a further trick to doing this in-camera that i didn't do.
2. There's a lot more to post-processing the images to bring out the expected infrared effect.

or

3. The hot mirror in the 7D is just too effective, and what little deep-red visible light gets through the filter is, indeed, what primarily comprises the image.

Post #1, Nov 20, 2010 13:41:16




LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
johneo
Goldmember
johneo's Avatar
Joined Aug 2003
1,428 posts
North Kingstown, RI
[MORE/SHARE]

Can you post an example? (or a link to one)

Haven't tried IR with my 7D and filter. When I tried it on my 10D (which was before I had it converted to IR) I pretty much had "similar" results though it was much better after conversion. PP shouldn't be that big a deal. Did you perhaps overdo the PP?

Which filter are you using?

Project for the day ... see if I can find my IR filter ( :confused: ) and give the 7D a try.

Post #2, Nov 21, 2010 09:25:59


2 - 5DMKII's, Powershot SX 150 IS
7D, 5D, IR/5D, 10D, IR/10D, Elan 7NE
17-40 L, 24-70 L, 70-200 f/2.8 L IS, 100-400 L IS,
TS-E 24 f/3.5 L, 28-135 IS (x2), 50 f/1.8, 85 f/1.8 550EX, 430EX
40mm pancake

LOG IN TO REPLY
johneo
Goldmember
johneo's Avatar
Joined Aug 2003
1,428 posts
North Kingstown, RI
[MORE/SHARE]

Found my filter ... 7D with an IR filter works just like any other camera I've tried.

First shot is 7D.
Second shot is the same photo converted to grayscale.
Third shot is the 7D using the Hoya R-72 filter, believe it was 13 seconds @ f/2.8
Forth shot is from my converted 10D.
I didn't shoot the 10D and 7D IR at similar settings because with the converted 10D long exposures aren't needed.
I'll also point out that I didn't spend a lot of time trying to get similar shots or in fact the best shots ... shooting with a filter is a pain! :rolleyes:
But, I think you can see the difference between the 7D B&W shot and the 7D IR shot
BTW ... the sky was pretty hazy so it would be hard to get dark (black like) skies. But you can see the line of tree to the left in the background, as well as the grass ... dark in the B&W photo, light in the IR

IMAGE: http://www.riview.com/IR/7D-noir.jpg

IMAGE: http://www.riview.com/IR/7D-BW.jpg

IMAGE: http://www.riview.com/IR/7D-IR.jpg

IMAGE: http://www.riview.com/IR/10D-1.jpg

Post #3, Nov 21, 2010 19:25:00 as a reply to johneo's post 9 hours earlier.


2 - 5DMKII's, Powershot SX 150 IS
7D, 5D, IR/5D, 10D, IR/10D, Elan 7NE
17-40 L, 24-70 L, 70-200 f/2.8 L IS, 100-400 L IS,
TS-E 24 f/3.5 L, 28-135 IS (x2), 50 f/1.8, 85 f/1.8 550EX, 430EX
40mm pancake

LOG IN TO REPLY
sweitzen
THREAD ­ STARTER
Hatchling
Joined Nov 2010
4 posts
[MORE/SHARE]

Thanks!

I bought a Singh-Ray I-Ray filter.

I don't know if I saved any of my shots from yesterday; they were all pretty bad.

There was almost no noticeable difference between color photo converted to grayscale and IR photo converted. Foliage was a little lighter, but not white. It was fairly overcast, and I couldn't get any shots in direct sunlight -- i don't know if that has anything to do with it.

The shot you did with 7D and filter -- did you just convert the photo to grayscale, or do more processing?

I was playing with the custom white balance, shooting a white sheet, and then applying that as a color correction to subsequent images. The result wasn't monochrome, but muted tones, and i found it a pleasing effect. However, it is, as far as i can tell, only applied to JPG, and not to RAW. When I imported the data into photoshop, the RAW were the original deep red color.

Do you know how to apply the calibration photo to subsequent photos (working in RAW) in Photoshop CS4 so I can get the same color effect as the JPG had, but have it in RAW so I can process it further if I like?

So far, everything I've read says only to swap the R and B channels, and that just looks horrible.

Post #4, Nov 22, 2010 10:38:00 as a reply to johneo's post 15 hours earlier.




LOG IN TO REPLY
johneo
Goldmember
johneo's Avatar
Joined Aug 2003
1,428 posts
North Kingstown, RI
[MORE/SHARE]

sweitzen wrote in post #11326659external link
The shot you did with 7D and filter -- did you just convert the photo to grayscale, or do more processing?

I only resized and converted the jpg to grayscale. No othere processing.

I don't shoot RAW, only large fine jpeg and try to do minimal processing on them (that's anything I shoot)

The sunlight does make a big difference when shooting IR. Noticably when shooting a leafy tree where part of the leaves on the tree are in the shade. (looking for examples but can't find them now :( )

Post #5, Nov 22, 2010 11:18:31


2 - 5DMKII's, Powershot SX 150 IS
7D, 5D, IR/5D, 10D, IR/10D, Elan 7NE
17-40 L, 24-70 L, 70-200 f/2.8 L IS, 100-400 L IS,
TS-E 24 f/3.5 L, 28-135 IS (x2), 50 f/1.8, 85 f/1.8 550EX, 430EX
40mm pancake

LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
sweitzen
THREAD ­ STARTER
Hatchling
Joined Nov 2010
4 posts
[MORE/SHARE]

I am toying with picking up a used 5D on ebay and converting it to IR-only, but only after I've taking shooting with the filter as far as i can go.

I really like how IR makes B/W photos look, and having one converted to allow normal exposures opens up using it for portraits, too.

Post #6, Nov 22, 2010 13:14:01 as a reply to johneo's post 1 hour earlier.




LOG IN TO REPLY
johneo
Goldmember
johneo's Avatar
Joined Aug 2003
1,428 posts
North Kingstown, RI
[MORE/SHARE]

sweitzen wrote in post #11327369external link
I am toying with picking up a used 5D on ebay and converting it to IR-only, but only after I've taking shooting with the filter as far as i can go.

I really like how IR makes B/W photos look, and having one converted to allow normal exposures opens up using it for portraits, too.

See if you can find an old 10D for cheap and have it converted, if money is tight. I had my older 10D converted to Deep B&W IR and it's a lot of fun to play with. My older 5D is being converted now to Super Color IR and can't wait until it gets back.

I bought my R-72 filter to give IR a try with my old Sony digital. Found out the filter also fit on my Canon Nifty Fifty lens ... results were a little better than the Sony but still, what a pain in the ... Shortly after, the shutter went on my 10D and when I got it back, shipped it off to be converted.

Here's a shot i took a year or two ago. Just pulled over, thought it would look cool, got out my 10D-IR and took a few picks. I always try a few settings but long exposures are a thing of the past! You can see that by how smooth the water was in the shot.


IMAGE: http://riview.com/IR/0097ir2.jpg

Post #7, Nov 22, 2010 14:12:45


2 - 5DMKII's, Powershot SX 150 IS
7D, 5D, IR/5D, 10D, IR/10D, Elan 7NE
17-40 L, 24-70 L, 70-200 f/2.8 L IS, 100-400 L IS,
TS-E 24 f/3.5 L, 28-135 IS (x2), 50 f/1.8, 85 f/1.8 550EX, 430EX
40mm pancake

LOG IN TO REPLY
sweitzen
THREAD ­ STARTER
Hatchling
Joined Nov 2010
4 posts
[MORE/SHARE]

Are you using MaxMax to do the conversion?

Post #8, Nov 22, 2010 15:00:46 as a reply to johneo's post 48 minutes earlier.




LOG IN TO REPLY
johneo
Goldmember
johneo's Avatar
Joined Aug 2003
1,428 posts
North Kingstown, RI
[MORE/SHARE]

sweitzen wrote in post #11327954external link
Are you using MaxMax to do the conversion?

No, LifePixel.com

Post #9, Nov 22, 2010 19:10:45


2 - 5DMKII's, Powershot SX 150 IS
7D, 5D, IR/5D, 10D, IR/10D, Elan 7NE
17-40 L, 24-70 L, 70-200 f/2.8 L IS, 100-400 L IS,
TS-E 24 f/3.5 L, 28-135 IS (x2), 50 f/1.8, 85 f/1.8 550EX, 430EX
40mm pancake

LOG IN TO REPLY
Mark ­ II
Goldmember
Mark II's Avatar
Joined Mar 2009
2,148 posts
Texas
[MORE/SHARE]

johneo wrote in post #11327728external link
My older 5D is being converted now to Super Color IR and can't wait until it gets back.

Just sent a 40D off to Lifepixel..... Any updates from your new Super color IR? :)

Post #10, Dec 17, 2010 23:19:59


1DX7D - 40D IR converted Sony RX100,
Canon 85 L II, EF 70-200mm f/2.8L IS II, EF 24-105L, 16-35mm f/2.8 II L, 100L & 60mm Macro , Fisheye EF 15mm f2.8, Tokina 10-17

LOG IN TO REPLY
m_fitton
Hatchling
Joined Mar 2010
1 post
[MORE/SHARE]

I'm certainly no expert, but I also have been trying out a R-72 filter on my 50D and after getting results I wasn't happy with, I started to dig around a bit. It seems that if you take an image of something with a strong green colour ie; grass, leaves etc, and use that as your custom white balance you will get the results you need. The only thing I don't know about and haven't had time to try it, is when taking the image of the greenery with the filter in place, how long should the exposure be for that image... I would get out a bit more and try this but there isn't much greenery here anymore...LOL

hope it helps :)

Post #11, Dec 18, 2010 09:17:47




LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
LearnMyShot
Senior Member
LearnMyShot's Avatar
Joined Nov 2008
136 posts
[MORE/SHARE]

this might help: a step by step tutorial: http://www.learnmyshot​.com ...hy-Technique-Step-By-Stepexternal link

Post #12, Dec 18, 2010 11:17:25



LearnMyShotexternal link - Photography Tutorialsexternal link, Tips & Techniquesexternal link
|flickrexternal link |facebookexternal link

EatMyShotexternal link - Food Photographerexternal link

LOG IN TO REPLY
mdflowe
Member
Joined Jan 2011
97 posts
Wichita Falls, Texas
[MORE/SHARE]

It's been a while since I shot any IR, so i hope my recollection is correct ... the trick is to do a custom white balance on the green grass or green leave patch in the trees. Using a white piece of paper only makes the whites white. Setting it to a green grass area makes the leaves and grass white. Then do some PP with conversion to B&W. There's some experimentation to get what you want but don't use white paper or gray card is what I was told by the serious IR shooters.

Post #13, Apr 25, 2011 23:29:45


.
Concert Photography | www.neilpeartdrumstick​s.comexternal link
7D-Grpd(2) | 10D-IR | 580EX II(3) | 70-200mm F/2.8L IS II | 24-105mm F/4L IS | Pelican 1510 | LowePro Bags | List more lenses later.

LOG IN TO REPLY
jblaschke
Goldmember
jblaschke's Avatar
Joined Apr 2008
1,439 posts
New Braunfels, Texas
[MORE/SHARE]

I can't speak for the 7D with any certainty, but the issue *might* be with hot mirror. I've shot much IR with an unmodified XTi/400D. After setting custom white balance, landscape shots on a sunny day generally take about 10 seconds at f/8 to give me a good exposure and nice histogram. A month or so back, I didn't have my XTi so used the 50D instead. Using the same lenses and settings, 10 second exposures were almost black, and 20 second exposures were murky. I tried to rescue some in Adobe Camera Raw, but the IR effect was muted.

Obviously, the hot mirror on the 50D is significantly more effective against infrared than that of the XTi, and I would assume the 7D hot mirror is just as effective a filter, if not moreso. Since 720nm filters do allow a small amount of visible spectrum to pass, the longer exposure times are letting in enough visible light to muddy up and spoil the IR image. The solution, such as it is, may be to get an older body with a less efficient hot mirror, or bit the bullet and get a conversion.

Post #14, Apr 26, 2011 11:10:52 as a reply to mdflowe's post 11 hours earlier.


Canon 7D | Canon 50D IR modified | Canon EF 70-200mm 2.8 IS L | Canon FD 500mm 8.0 Reflex | Canon EF 85mm 1.8 | Canon EF 50mm 1.8 mk I | Canon EF-S 10-22mm | Tamron 28-75mm f/2.8 | Meade 645 (762mm f/5)
Model Mayhemexternal link
[COLOR=DarkRed]| DeviantArtexternal link | Lisa On Location: New Braunfels Photographyexternal link

LOG IN TO REPLY
labbai
Senior Member
labbai's Avatar
Joined Jan 2007
248 posts
Turku, Finland
[MORE/SHARE]

Maybe these sites will give some assistance: http://nightsheep.devi​antart.com ...ssing-IR-Photo-s-90232994external link and http://www.wrotniak.ne​t/photo/infrared/external link
It's all about post processing in digital IR photography

Post #15, Jun 10, 2011 09:55:49 as a reply to jblaschke's post 1 month earlier.


Canon, Gitzo, RRS, Zeiss, Pelenghttp://labbai.blogspot​.com/external link

LOG IN TO REPLY


LIST NEARBY THREADS
16,881 views & 0 likes for this thread
Infrared photography with Canon 7D help?
FORUMS Photography Talk by Genre Still Life, B/W & Experimental Talk



NOT A MEMBER YET? CLICK HERE TO REGISTER TO FORUMS

CHANGE BODY TEXT SIZE FOR ALL THREAD PAGES
POWERED BY AMASS 1.0version 1.0
made in Finland
by Pekka Saarinen
for photography-on-the.net


SEND FEEDBACK TO STAFF  |  JUMP TO FORUM...  |  FORUM RULES


Spent 0.00102 for 4 database queries.
PAGE COMPLETED IN 0.02s
852 guests, 721 members online
Simultaneous users record so far is 3341, that happened on Dec 11, 2014
Latest registered member is Alex3uerfuer

COOKIES DISCLAIMER: By using this site you agree that some cookies will be stored on your browser. For unlogged users we store one session id cookie. For registered members we store (in addition to login session cookie) only cookies that are essential for required functionality, we do not store any personal tracking data in cookies or other browser's data storage methods.