Question about Pentax *ist D Digital Camera
I have a Pentax AF240FT flash that works properly with only some lenses. When used with my FA28, F35-70, and F50 the flash underexposes (it seems the flash fires at the same intensity all the time). When I use my DA16-45 or FA80-320 it works properly(haven't tried it with M lenses yet). Another thing is when the AF240 sees a focal lenth shorter than 35mm it flashes a yellow indicator to remind you to use the wide angle adapter, this light flashes with the DA16-45@<35mm but not when the FA28 is mounted.
Posted by Anonymous on
I have the same flash and I have only used it with my FAJ 18-35 and FA 24-90. Exposure seems to be darker with the FAJ 18-35 than with the FA 24-90 which is fairly good. When compared to the RTF, the exposure is also darker for both lenses but I would say the RTF overexposes than is correct. Regarding the coverage warning lamp, my 240 did lit up correctly with the 1.5X multiplying factor already taken into account by the camera, i.e., the 24-90 don't have the warning and with the 18-35, the warning lamp lit up when I zoomed near the 18mm. So, everything seems normal for my setup. Anyway, I shall try your mentioned lenses F 35-70 and DA 16-45 later on and see if these lenses exhibit the problems you described and will keep you informed.
Posted on Sep 08, 2005
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Posted on Jan 02, 2017
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