My AF540 is now at Pentax CO. being 'repaired' due to my having had the same sort of experience. I mentioned this previously (a couple times), but I discussed the problem with a Pentax tech who told me it should be sent in for repair. I shipped the manual with the flash, so can't check, but it may be that if the diffusion panel is pulled down, it will not recognize the lens.(?)
Jack --- John Sessoms <[EMAIL PROTECTED]> wrote: > I recently purchased the K-10D. My workhorse lens, purchased several > years ago along with a PZ-1P is a Tokina AT-X 287 PRO f/2.8 28-70 mm > zoom. I used an AF-500FTZ flash with the PZ-1P. > > When I got my *ist-D, I continued to use this lens and flash combo. > I > never had any problem balancing the flash with the *ist-D, and the > flash > would zoom along with lens, although the AF-500FTZ thought it was a > 35 - > 105 mm zoom, which I attributed to the 1.5 "crop" factor. > > However, when I purchased the K-10D recently, I found the AF-500FTZ > will > *NOT* work with it. > > The flash blasts out at full power, won't do TTL, and won't even do > manual. I can set the flash to manual, and select 1/x power to > balance > the flash output, but I only get a single shot before the K-10D > switches > the flash back to TTL and goes back to full power. > > So I bought the AF-540FGZ. > > It seemed to be working just fine in P-TTL, but it wouldn't detect > the > focal length of the Tokina lens. It stays flashing "16" mm all the > time. > > I've been re-reading the manual, and it seems to say when there's no > lens focal length data, the flash will set itself to 16 mm. Looking > at > the info displayed about the pictures I've taken, the camera is > getting > the focal length info from the lens. In fact the K-10D is showing the > > real focal length instead of the "crop" focal length equivalents. > > I don't have any Pentax DA lenses, but I do have the 18-35 FA-J lens. > I > get the same flashing "16" mm display when I have it mounted. > > If I turn the power off and slip the wide angle panel into place it > will > flash "13" mm when I power it back on. Won't change back to "16" mm > when > I slide the panel back. Gotta' turn it off and back on. > > Also blinks whatever the appropriate wide/normal zoom value is for > the > different formats (35mm, 645, 6x7), sensing the position of the wide > angle panel when it's powered on. > > ------------------------ > > *And now*, somehow, I've managed to change the flash over to manual > zoom > mode. It wouldn't change the way the Operating Manual said it would > by > just pushing the zoom button, but something changed it, and it won't > change back. > > It still won't cycle through the zoom settings though. > > In addition, it's no longer responding to the sync setting switch > either, which it would do earlier today. > > Tried it on the *ist-D with both lenses and am getting the same > results. > > The batteries were fairly fresh set of Energizer Lithium AAs (FR6). I > > tried a fresh set, and still no joy. > > I'm afraid I have a defective flash. > > Drat! > > Anyone else have thoughts about this? > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > ____________________________________________________________________________________ Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase. http://farechase.yahoo.com/ -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
