> does the SR system compensate for FL change when > using later lenses where manual input of the FL is not > available?
Unless Pentax have built in hacks for their own known lenses that require this (ie the camera 'knows' the bahaviour of FA100, etc macro lenses and adapts itself when it detects it), then I would guess probably not... It is possible for the lens to report changing focal length to the camera (zooms do it all the time), but I'm betting they don't do it... you could test it easily enough though, just see what your EXIF info tells you for the lens at either end of focus. I'm guessing it won't change. On a related note, I pulled apart my old kit FA 28-80 F3.5-F5.6 lens the other day, to examine the internals... I was expecting to see a resistive strip on the barrel for each of zoom and focus, but it actually had multiple (4 and 3) contacts with parallel binary encoded conductive strips on there instead, giving 16 possible values for one and 8 for the other. - Peter Loveday -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
