Infrared photography
In article
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Pat wrote:
The other option is to just buy the right camera, something like the
old Canon EOS 20Da. The "a" designates it as a astronomy camera and
it doesn't have the filter. I think it's been discontinued but you
can probably find one if you sniff around.
or the fuji uv/ir camera
If you go IR, you might also want to buy an older lens. Some of the
older ones had an IR mark on the focus ring so you could adjust the IR
focus (which isn't the same as the visible light focus).
that helps too
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