40D Infrared Photography ?!

HondaHRV · Nov 9, 2007

Is the 40D capable of infrared photography ?

I just got a Hoya Infrared filter and with 30 secs. exposure I get very dark and reddish photos.

Does the 40D needs to be modified in order to be able to shot in infrared ? if yes then needs to be modified ?

Thanks !

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

Martin_E · Nov 9, 2007

Hi,

I hope I don't get shot down if I'm wrong, but, I seem to remember speaking to someone a few weeks ago who converted a 20D to take Infa Red pictures, I think he removed the Anti Alias Filter in front of the Sensor as this absorbs Infa Red light. If I was you, I wouldn't start modifying your 40D but buy an old 20D and modify that instead.

Martin,

HondaHRV said:
Is the 40D capable of infrared photography ?
I just got a Hoya Infrared filter and with 30 secs. exposure I get
very dark and reddish photos.
Does the 40D needs to be modified in order to be able to shot in
infrared ? if yes then needs to be modified ?

Thanks !

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

HondaHRV · Nov 9, 2007

You're right I will not modify my new 40D, maybe I should get a used 350D and mofiy that.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

FathomsDeep · Nov 9, 2007

I agree my wife had a 10D modified to IR what a treat.
http://www.irdigital.net/

This is where she got it done ... just google "IR conversion canon" to find a few places that do them. this was with here camera.

--
Richard Herbert, Monterey CA
Standout from conformity, 'Only a dead fish swims with the current.'

HondaHRV · Nov 9, 2007

Is it true that with this infrared filter removed some clothes on people appear transparent ?

Is that filter doing more than just filtering the IR for people privacy/protection ?

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

HondaHRV · Nov 9, 2007

I am very dissapointed because I spent $100 for a Hoya infrared filter and all the photos are black, even with 10 minutes exposure.
they should specify that the filter does not work on any normal digital camera.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

iMac therefore iAm · Nov 9, 2007

10 minutes? You are doing something seriously wrong. This guy has no problems with the filter http://www.pbase.com/allonkira/infrared The reason they don't specify it doesn't work on a normal digital camera is because it does work.

HondaHRV said:
I am very dissapointed because I spent $100 for a Hoya infrared
filter and all the photos are black, even with 10 minutes exposure.
they should specify that the filter does not work on any normal
digital camera.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

--
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carla_francisco · Nov 9, 2007

--

“Most of us can read the writing on the wall; we just assume it's addressed to someone else.” - Ivern Ball

http://carlafrancisco.shutterchance.com
http://www.flickr.com/photos/carlafrancisco/

R Nold · Nov 9, 2007

do a custom white balance with the IR filter on.
then shoot.
--
http://www.pbase.com/rnold/

HondaHRV · Nov 9, 2007

read here http://en.wikipedia.org/wiki/Infrared_photography

----

Also, some clothing is transparent in the infrared, leading to unintended (at least to the manufacturer) uses of video cameras.[4] Thus, to improve image quality and protect privacy, many digital cameras employ infrared blockers. Depending on your subject matter, infrared photography may not be practical with these cameras because the exposure times become overly long,
------

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

HondaHRV · Nov 9, 2007

I will try tomorrow again in sunlight, but the best one was just a very dark red that you could not see almost anything.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

HondaHRV · Nov 9, 2007

I shot RAW almost every time.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

Clark666 · Nov 9, 2007

Hre is a very good explanation of how to use infrared with a dSLR

http://wrotniak.net/photo/infrared/e510.html
--
Olympus E510, 40-150, 50-200
c-50,
Canon Elan 7, 40D, 28-90, 100-300, 50 f/1.8, sigma 10-20
http://www.flickr.com/photos/75673106@N00/

HondaHRV · Nov 9, 2007

thanks!, now I got it, I must use +5EV and use grayscale with red filter in the camera or process the RAW to monochrome.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

R Nold · Nov 9, 2007

I have an IR modified 350d. it's been quite a while, but I've taken plenty of photos with an IR filter on my 20d.

as a starting point, do a custom WB then shoot manual at say ISO 400 f/5.6 and make adjustments from there. there's no way around the long exposures so use a tripod. depending on your lens, you may get a center hot spot. if the custom WB doesn't correct the red cast to your liking then switch to monochrome.

--
http://www.pbase.com/rnold/

R Nold · Nov 9, 2007

two excellent IR forums:

http://lulalake.conforums.com/

http://tech.groups.yahoo.com/group/Infrared_Photography/

--
http://www.pbase.com/rnold/

carla_francisco · Nov 9, 2007

I stand corrected (even though Wikipedia isn't my main source for reliable information) but you didn't have to be SO RUDE... I merely made a light-hearted observation (notice the

?) but apparently you have no sense of humour whatsoever and took it as some kind of insult...
Thanks for "enlightening" me anyway...
--

“Most of us can read the writing on the wall; we just assume it's addressed to someone else.” - Ivern Ball

http://carlafrancisco.shutterchance.com
http://www.flickr.com/photos/carlafrancisco/

iMac therefore iAm · Nov 9, 2007

Just out of curiosity - you weren't trying to do infra-red night vision photograhpy were you? Because the filter you are using is 'near' infra red, not infra red.

HondaHRV said:
I will try tomorrow again in sunlight, but the best one was just a
very dark red that you could not see almost anything.

HondaHRV · Nov 9, 2007

I did not insult you, but you sounded like you are laughing about me

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

HondaHRV · Nov 9, 2007

Of course not

I tried at sunset, with room light also I get black photos even with 6min. exposures.

--
Canon 40D/17-85mm/580EX II + G9/430EX/ST-E2
---
http://www.autospeed.ro
http://www.amazona.ro

40D Infrared Photography ?!

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