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I've got an IR-converted EOS 30D (830 nm filter, B&We only) and a 450D (720 nm filter, also allows false-colour IR). Great fun.

Good question. I didn't get any notification of it, so it was just sitting there - it's approved now. Sorry!

The other option is the 40mm STM if you can get away with the single focal length - it's a great little lens all round.

Which lens are you using?

The 75-300 IS really isn't that good, and I wouldn't recommend it at al - the 55-250 is a much better lensl. The 70-300 IS is a very decent lens, though.