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Thread started 24 Feb 2017 (Friday) 09:15
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R72 Infrared Filter - Does it work?

 
Tommydigi
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Joined May 2010
Chicago
Feb 24, 2017 09:15 |  #1

I've considered modding an old camera for IR but it would be more for fun so I'm wondering if a filter would work ok.
I came across this one. Anyone have any experience with these? I thought it may be cool for some situations

https://www.bhphotovid​eo.com ..._RM72_Infrared_Glas​s.html (external link)


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Canon ­ Bob
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Mar 02, 2017 10:16 |  #2

Work?....yes, but it will pretty much neccessitate a tripod due to the long exposure times. The IR cut filter in your camera is pretty good at blocking most of the light at the wavelength that you're trying to capture and your're left with the dregs from which to pruduce the exposure.
An IR modified body, on the other hand, will have expsoure times not too far removed from those of a normal shot.

Bob


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Tommydigi
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Cream of the Crop
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Mar 02, 2017 10:17 |  #3

Thanks, I'm fine with using a tripod.


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imsellingmyfoot
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Joined Apr 2011
Dallas, TX
Mar 23, 2017 09:35 |  #4

I've got one of those Hoya R72 filters on an unconverted camera. I think I calculated the light loss one time.. somewhere between 20-30 stops I think. Noon sunlight and my exposure was ISO 3200, f/5.6, 30s. But you get some really cool stuff and it's a lot of fun to play with.


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R72 Infrared Filter - Does it work?
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