Anybody shoot infrared? Trying to figure which lens to send with my camera for focus calibration when I send it for conversion.
I have read/seen lists on the net that state the 70-200 f/4 is a good IR lens and the 2.8 is not. But the folks at lifepixel mentioned that they have seen hotspots with the f/4 but the 2.8 is ok.
Just wondering if anybody has shot any IR with either of these lenses?


