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I have a Sigma SD9 and tried to get a IR filter to give a result.
I read some time ago that IR was possible with the SD9 (but not all dslr`s)
so i set up the tripod ,focused on target,largest apature,slowest speed,ISO 100 (slowest)
put the IR filter on and continued to take the shots,after about 50 attempts at differant speeds ,
bracketing everything ---i even tried "bulb"
I failed to get anything but red noise.Any idea where i`m going wrong or is a limitation of the camera.
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First things first - leave the filter off and put the camera in an dark room. Set it to a long exposure (to give you time) and press a button on your TV remote, pointed at the front of the lens. If you don't get a spot on the image, the camera doesn't see enough IR light.
This post says that you won't have any luck, however.
I tried this with my 20D and needed 4s at f2.8 with the ISO set to 3200.
damn-- should of thought about Chris`s point,knew the answer but it was just to deeply buried in the grey matter.
just about to upgrade to SD10 thanx
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