Originally posted by rfortson I was using my 1.4x TC on my Bigma yesterday for a total apparent focal length of 700mm. However, I notice that my camera still reports focal length as 500mm, meaning the shake reduction is set for that focal length. Is that going to be a problem? Should/can I set it manually to 700mm? How do the rest of you handle this?
I reported this shortly after I bought my K10D to pentax who claimed they would report it to their R&D.
Note this also impacts the flash zoom focal length.
I am not sure, but I have been told that Nikon have the TC corrected for automatically. I do not know if this is possible within the Pentax KA and newer mount specification or not. I proposed a start up menu, like what you get with non A lenses, where you can pick the TC from a menu. I suggested 1.4x, 1.7x, 2x, and 3x as reasonable ones.