Doesn't much matter. Anyone who uses 67 lenses with a 645D will probably be using it in the studio or on sticks for a location shoot. Paul On Feb 27, 2007, at 8:01 PM, P. J. Alling wrote:
> I do, as Pentax uses as many systems across camera lines as possible to > keep costs down. The metering and auto focus electronics in the 645n > were probably, (I only say probably since I've never taken either > camera > apart, though if someone would like to send me a 645n to sacrifice I'll > be happy to compare it's electronic guts to my not economically > feasible > to repair MZ-3), the same modules as those in the MZ/ZX-5n. I expect > the 645D to share the autofocus electronics and metering with the K10D. > If they do that, and I have every confidence Pentax will, full aperture > metering with 67 lenses is dead as the dodo. > > Thibouille wrote: >> Ah I didn't know. That said, I don't expect Pentax to drop support for >> this in their Pro line. >> >> 2007/2/27, P. J. Alling <[EMAIL PROTECTED]>: >> >>> All 645 lenses are A lenses and are electronically identical to to >>> the >>> Pentax Ka lens mount. There is no 645 equivalent to a K lens but I >>> would expect that the 67 lenses would fill that niche. Remember Ka >>> lenses are supported by all Pentax K DSLRs but using the aperture >>> ring >>> for full aperture metering isn't. >>> >>> Thibouille wrote: >>> >>>> If the adapter provides the linkage then 645D should meter normally >>>> IMO. >>>> Pentax stated that 645D is compatible with all 645 lenses and the >>>> DFA55 is announced as being compatible with previous 645 bodies (and >>>> it has an aperture ring). >>>> >>>> So it should (hopefully) be OK. >>>> >>>> 2007/2/27, Mark Roberts <[EMAIL PROTECTED]>: >>>> >>>> >>>>> P. J. Alling wrote: >>>>> >>>>> >>>>> >>>>>> Mark Roberts wrote: >>>>>> >>>>>> >>>>>>> Paul Stenquist wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>>> On Feb 27, 2007, at 3:58 AM, Thibouille wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> Mmm BTW do 67 lenses provide mecanical coupling when >>>>>>>>> used on 645 with adaptor or one you them like M42 on K body ? >>>>>>>>> >>>>>>>>> >>>>>>>> When used on the current 645, using a 67 lens would be akin to >>>>>>>> using an M42 lens on the Pentax digitals. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> A little better than that: The 67-645 adapter does provide >>>>>>> automatic diaphragm actuation and open aperture metering. At >>>>>>> least according to the Pentax literature. I'd love to buy one of >>>>>>> the >>>>>>> things if I could ever find one. >>>>>>> >>>>>>> >>>>>>> >>>>>> But will it offer open aperture metering on the 645D? >>>>>> >>>>>> >>>>> Impossible to say without having a 645D to play with, don't you >>>>> think? >>>>> But I'd be surprised if it didn't. >>>>> >>>>> >>>>> -- >>>>> PDML Pentax-Discuss Mail List >>>>> [email protected] >>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>>> >>>>> >>>>> >>>> >>>> >>> -- >>> Entropy Seminar: The results of a five yeer studee ntu the sekend lw >>> uf thurmodynamiks aand itz inevibl fxt hon shewb rt nslpn raq liot. >>> >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> >>> >> >> >> > > > -- > Entropy Seminar: The results of a five yeer studee ntu the sekend lw > uf thurmodynamiks aand itz inevibl fxt hon shewb rt nslpn raq liot. > > > -- > 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
