A number of posts have appeared in various places describing how a switch
can be installed to kick the IR-reject filter out of the optical path when
the camera is in its fully capable visible-light mode. This should defeat
the childish restriction on infrared operation Sony imposed due to
ill-perceived public outcry. But besides crippling the exposure system, Sony
installed one additional safeguard to limit infrared operation in the
visible-light mode and that is to place a hard digital limit on the range of
the autofocus system. As a result, taking the IR filter's glass plate out of
the optical path makes the camera a little nearsighted. The needed
corrective lens has almost zero power to create distortion, but at -0.5
diopter, it's enough to restore focus at scenic distances, where the strange
rendering in infrared light is most fascinating.
FAQ
Search
Profile
Private Messages
Log in
