Leon, I don't have any A lens suitable for testing right now, but I'm a bit curious. How is the "lens" described in the file metadata? Is there any difference between K-7 and the older cameras there?
Jostein 2011/4/24 Leon Altoff <leon.alt...@gmail.com>: > I need to find out more about this, because it doesn't work for me. > At least, not with the lens I use. > > I'll admit it's not your normal A lens, but this set up worked on the > MZ-S and the *istD and I'd love to have it work on the K7 (or the next > camera upgrade). I have added A contacts to a set of bellows. With > the camera set to fully open aperture (f2 in this case), and the lens > on the bellows closed down when the prefire happens, the camera > calculates the correct exposure and the flash fires correctly - using > the *istD and 2 AF360 flashes. The K10D and K7 fire the flash at full > output. > > Both the newer cameras behave as if there is an A lens connected to > the camera. The camera recognises the aperture range I set the mount > to and I can select the aperture accordingly. It even meters > correctly for changes in the aperture set on the camera in P mode. > Everything except the flash output. > > If someone has a simple A lens (maximum of 6 contacts on the lens), a > K7 and an AF360 flash can you conduct an experiment to see if you get > correct P-TTL exposure out of the setup? That will at least let me > know if it's just me or a design issue. I'll have to try high speed > sync mode to see if that makes a difference since it works for Paul. > > Leon > > On 18 April 2011 23:26, Paul Stenquist <pnstenqu...@comcast.net> wrote: >> >> On Apr 18, 2011, at 9:12 AM, Thibouille wrote: >> >>> AFAIK the A lenses do PTTL with K7. >> >> And with the K5 as well. I frequently use it with my A400/5.6 in high-speed >> synch mode. >> Paul >> >> >>> >>> 2011/4/18 Leon Altoff <leon.alt...@gmail.com>: >>>> Hi Tim, >>>> >>>> I've considered this same thing, though Pentax normally do manage to >>>> make a nice improvement between models. Personally I've decided to >>>> upgrade every second major upgrade - bought a K10D, skipped the K20D, >>>> bought the K7, skipped the K5, buy the K3?. >>>> >>>> I'll admit I'd like the improved low light capability of the K5 over >>>> the K7, but as I'm expecting the K3 (for want of a better model number >>>> to apply) to be improved I can wait. For a while. If it's not >>>> improved then I will probably go out and buy a K5 simply to keep the >>>> control layout on the back the same between the K5 and the K7 (because >>>> I do use 2 bodies). >>>> >>>> I'm hanging out for some rumors of what the next model holds, but >>>> there is nothing. And I'm watching other's buying K5's. >>>> >>>> What should they be working on? I don't know. I would like to see >>>> them bring back P-TTL flash working on A lenses like the *istD had. I >>>> use that. >>>> >>>> Leon > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
