Well, this solves your problem then. Your main complaint was about changing lighting. Changing the aperture your going to be changing the DOF, how often do you need to do that FAST?
[EMAIL PROTECTED] wrote: > I didn't read you message fully, yes you could > Compensate for changes in lighting but in order > To compensate for changes is aperture setting > You would need to re-stop-down meter over and over. > Re-Implementing the PK/PKM aperture sensing solves everything > And fully open aperture to boot. Its dirt cheap to add but > Very valuable (to me at least). > jco > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of > Juan Buhler > Sent: Sunday, October 08, 2006 2:00 PM > To: Pentax-Discuss Mail List > Subject: Re: RE: Re: k10d and manual-aperture lenses? > > Wrong. The camera has metered closing down when you pressed the > button, and can meter at open aperture at all times. All the software > has to do is add the relative change of exposure to the one it has > stored. > > j > > On 10/8/06, J. C. O'Connell <[EMAIL PROTECTED]> wrote: > >>Its impossible to achive in software because there >>Is no way for the camera to know what aperture setting >>Is other than to stop down which is one shot, not continous >>AE. >>jco >> >>-----Original Message----- >>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > > Of > >>Juan Buhler >>Sent: Sunday, October 08, 2006 1:18 PM >>To: Pentax-Discuss Mail List >>Subject: Re: Re: k10d and manual-aperture lenses? >> >>I know it is a dead horse, but I think it was killed in the wrong way. >> >>The mechanical coupler is gone for good, and there's no reason for >>Pentax to reimplement it. >> >>But a better solution could be achieved with software. I'd like to >>have, besides the green button behavior in M mode, a similar behavior >>in P: press the green button to get correct exposure. When the light >>changes, the camera modifies the shutter speed it had selected. If you >>move the aperture ring you're on your own. >> >>This would be a trivial firmware update, and would add a totally new >>mode for pre-A lenses. >> >>j >> >> >>On 10/8/06, Adam Maas <[EMAIL PROTECTED]> wrote: >> >>>William Robb wrote: >>> >>>>----- Original Message ----- >>>>From: "Adam Maas" >>>>Subject: Re: k10d and manual-aperture lenses? >>>> >>>> >>>> >>>>>In practice, the 'Green Button'/AE-lock hack on the DSLR's is >> >>simple >> >>>>>and >>>>>easy to use. You always set aperture on the lens for non-A > > lenses, > >>and >> >>>>>either hit the AE-Lock (Green Button on D/K10D) and it > > immediately > >>>>>sets >>>>>an appropriate shutter speed or you use the DoF preview to get a >>>>>metering readout. I usually do the former and it works very well. >>>>> >>>>>Av mode is usable with adaptor-mounted glass (since that is >> >>stop-down >> >>>>>on >>>>>any K mount body and doesn't have the aperture coupling either) > > or > >>>>>wide-open with pre-A glass. The latter is surprisingly useful for > > a > >>>>>serious low-light shooter like me. >>>>> >>>>>Frankly working with MF glass on the K100D is less hassle than >> >>using >> >>>>>the >>>>>same glass on my MX (Or any other purely manual body). >>>> >>>>You do have to keep an eye on things, since it is possible to run >> >>the >> >>>>meter out of range pretty quickly. It's a good idea to have a clue >> >>about >> >>>>what the shutter speed should be with the aperture chosen. >>>> >>>>William Robb >>>> >>> >>>Agreed. >>> >>>Frankly, if you're going to use old glass, you should know what > > you're > >>>doing with regards to exposure and be paying attention. Of course, >>>that's a useful skill even shooting within the metering range with A >> >>and >> >>>later glass. >>> >>>Note I successfully shot for quite a while with the D50 and AI-era >>>glass, which utterly lacks metering of any sort. And after the first >>>week or two I was shooting 1-2 test shots for each lighting > > condition > >>>and leaving it at that. It's a good way to learn to expose (So is >>>shooting RVP50 in a TLR with no meter and only an exposure > > calculator) > >>>-Adam >>> >>> >>>-- >>>PDML Pentax-Discuss Mail List >>>[email protected] >>>http://pdml.net/mailman/listinfo/pdml_pdml.net >>> >> >> >>-- >>Juan Buhler - http://www.jbuhler.com >>photoblog: http://photoblog.jbuhler.com >>a book: http://www.jbuhler.com/book.html >> >>-- >>PDML Pentax-Discuss Mail List >>[email protected] >>http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> >>-- >>PDML Pentax-Discuss Mail List >>[email protected] >>http://pdml.net/mailman/listinfo/pdml_pdml.net >> > > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
