Sounds like a classic example of a sticky aperture lever. Flip the lever on the lens a couple times, if it's at all slow in returning, get the lens CLA'd.
-Adam Axel Belinfante wrote: > I just subscribed to the list, essentially to ask the question below. > > I recently got myself a K10d. When I use the kit 18-55 mm > and a FA*28-70 f/2.8 everything seems to work fine. > > However, with my FA*80-200 f/2.8 (aperture ring set to A) > I seem to get consistent overexposure (2 stops or so?), > _except_ when using it fully open (at 2.8) using the > hyper-program shifting or by using Av mode at 2.8. > > It almost makes me feel there is something wrong with > the way the camera tries to set aperture on the lens > (which would explain why it works fine at 2.8: > then it doesn't have to do anything so it works). > Would that be a valid explanation? > > Setting aperture using the ring on the lens, and > then using lcd-preview gives me correct (not overexposed) > preview shots. > > I have not been using the lens so much recently; in the > somewhat longer past I've been using it on a Z1 shooting > slides (last serious usage about a year ago, at the coast) > and I don't recall this kind of consistent overexposure. > I should probably just do some test shots with the Z1 > but haven't found the time. > > Sending the stuff in to pentax service, or even better, > visiting them, would have been another option except > that the dutch pentax service told me they send these > kind of things to pentax europe in Hamburg > (which doesn't really matter, except that if the dutch > pentax service in Breda would still have existed I would > just have visited them there and explained the issue) > and except for the wrong-time-of-the-year problem > (I've been told that due to holiday season it might > take weeks until I would get it back :-( > > > > Don't know if this is the right forum for these kind of questions; > I have seen there are multiple pentax forums out there, but don't > know how they differ. Any thoughts? > > Minor suggestion: inclusion of (pointer to) PDML mini-faq > on the mailing list web page (and/or in list welcome message) > could be useful, if only to be able to appreciate the acronyms. > > > Thanks, > Axel. > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
