http://www.markcassino.com/b2evolution/index.php/two-infrared-photos
IR Converted Pentax K-10D and DA 17-70 f4.
One problem I've experienced with the IR converted body is that some
lenses have an IR 'hot spot" in the center of the frame - more than a
spot really, but a good deal of the frame. The DA 16-45 is particularly
bad with this, the 18-55 less so. The 17-70 seems to be ideal for IR -
no hot spot and it seems to be quite sharp in IR.
Comments welcomed.
Mark
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