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General photography questions and answers: Discuss IR. Photography...I see alot of really cool pics. of IR. photography lately. I've thinking on trying my hand at it, but ...
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Old 03-03-2011, 14:27   #1 (permalink)
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Question IR. Photography

I see alot of really cool pics. of IR. photography lately. I've thinking on trying my hand at it, but saw an artical that said that all cameras are not compatable with IR. photography. That the senser has a filter on it to "filter" out the IR waves. It said that you could see if your camera was IR compatable by taking a picture of your remote control while pressing one of the buttons, and if you see a beam coming from the remote your camera is able to take IR. pictures with a IR. filter. Is this true or not? I have a Nikon D-90 and a Nikon D-7000. If I can with these cameras what is a really good filter and any good related articals. I know you guys out there always have my answers. Thanks for any advice or answers.
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Old 03-03-2011, 14:58   #2 (permalink)
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Re: IR. Photography

I would say that your sensor seeing more IR is true. I would borrow a filter and try your camera out. I don't f0llow what goes on as far as trends for IR and mostly use it for B&W's as for me it leaves the best lightness. I started reading about IR when the digital age in camera's was comeing to market, so it mostly talked about film. When I could I bought a converted camera. Now we've gone full circle and that's the trouble with normal digital cameras,,,,the "cut filter in front of your sensor". It blocks 90% of IR. I do really go for some of the colors that I've seen and produced.
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Old 03-03-2011, 15:53   #3 (permalink)
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Re: IR. Photography

You DSLR sensor will certainly be sensitive to near infrared but will be covered with a filter to remove infrared. Some DSLR's are more sensitive than others. I tried using a R72 IR filter on my EOS 20D which was medium sensitive for an unconverted camera. However, I was not really happy with the results as the exposures are 30 secs on a bright sunny day. Anything that can move (clouds, trees, shrubs) blur in that time. I eventually had my 20D converted to IR (internal filter removed) and I am very pleased with the results. I can now use it hand held with normal exposures etc.

If you want to know more look at my website (see below).
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Old 04-03-2011, 07:54   #4 (permalink)
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Re: IR. Photography

I'm lucky in that my Sigma dSLRs have a dustscreen which doubles as the IR filter - remove the dustscreen held by one simple screw and cameras are IR sensitive! Effectively, they're then IR + visible light - making them IR only entails adding something like the R72 which counts down on visibility through the viewfinder but maintains 'normal' shutter speeds - so I usually don't bother adding the R72!

I'd recommend getting an R72 filter to give the IR thing a try - but bear in mind that shutter speeds will be long in an unmodified camera
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Old 04-03-2011, 12:12   #5 (permalink)
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Re: IR. Photography

Using R72 filter to, nice job
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Old 04-03-2011, 17:41   #6 (permalink)
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Re: IR. Photography

I guess I'm going to have to just get a IR-72 filter and go for it. At $70 US. it's not out of reach. Use a tripod with long sutter speeds on calm days. I will endever to persaveir. Thanks for the link and the info. I will post some as soon as I get the filter and figure it out. I knew I could count on you people.
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