Pentax had semi-auto and auto apeture lenses even before the spotmatic (around 1960). Pentax only switched to M42 about 3 years earlier. So restated, you are going back to the stone ages in working mode by using a fully manual diaphram in 2008.
Compose BEFORE stopping down? Impossible. Focus before stopping down yes, but you have to stop down before you are ready to shoot so the final composition is always stopped down (read DARK). SUCKS bigtime. I positively hate it. Otherwise with auto-M42 its fine. Focus, compose, and shoot WIDE OPEN and the automatic aperture takes care of stopping down only for the exposure, thats great. Full Manual aperture? , nope. Anti-great. Regarding M42 lens features, the VAST VAST majority of them have auto aperture feature. Only a small percentage of them are semi auto (very very rare), full manual (rare) or preset (scarce). Why? Because auto aperture was developed well before M42 even became popular with Pentax in the early '60's. Even the really el cheapo M42 lenses had preset aperture which is far more ergonomic than the full manual mode you have to endure with a DSLR/adapter combo in 2008 on Pentax or Canon Eos bodies. To each his own, but after using auto M42 lenses for decades with film bodies, I know how easy they can be to work with, VERY EASY, but not the todays adapter "solutions". AWKWARD is an understatement. I can give up metering, autoexposure, autofocus, etc, no problem. but auto aperture functioning is just too important to give up for everyday use for me. JC O'Connell [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Wednesday, November 19, 2008 9:30 PM To: Pentax-Discuss Mail List Subject: Re: ANY M42 DSLR rumors (yet)? Which is why once composes before stopping down. Works pretty darn well. Especially since many M42 lenses were actually designed to work that way (Said aperture stop-down plate you're complaining about didn't appear until M42 mount was more that 16 years old and many lenses never supported it anyways). -Adam On Wed, Nov 19, 2008 at 9:27 PM, JC OConnell <[EMAIL PROTECTED]> wrote: > To rephrase that, I might be willing to use a M42 on a PK or EOS body > manually once in a while with an occasional Fisheye, 15mm, or 1000mm > or something, but for everyday use, NO WAY. Manual aperture mode of > working is just unacceptably slow and annoying and error prone > (composing with the aperture closed). > > JC O'Connell > [EMAIL PROTECTED] > > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of JC OConnell > Sent: Wednesday, November 19, 2008 9:25 PM > To: 'Pentax-Discuss Mail List' > Subject: RE: ANY M42 DSLR rumors (yet)? > > > I cant disagree any more strongly, the M42s SUFFER SUFFER SUFFER > without auto aperture, they are so annoying with the totally manual > aperture you get on a adapter that I would be willing to buy a M42 > DSLR so I could USE them again. The loss of auto aperture is NOT a > "fairly small loss in functionality", it a FATAL loss IMHO. > > JC O'Connell > [EMAIL PROTECTED] > > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Adam Maas > Sent: Wednesday, November 19, 2008 9:03 PM > To: Pentax-Discuss Mail List > Subject: Re: ANY M42 DSLR rumors (yet)? > > > Which is true primarily because of Canon shooters looking for good, > inexpensive primes (And to a greatly lesser extent the same among > Pentax, Olympus/Panasonic and Sony shooters). M42 costs are still a > fraction of the cost of similar Canon lenses and the M42 lenses are > often a fair bit better than some of said Canon lenses (or in the case > of 50's, faster AND better). > > There's a much smaller market for an M42 DSLR than there is for M42 > lenses _because_ those lenses are easily adapted to so many mounts > with a fairly small loss in functionality. > > The primary market for Manual Focus lenses in mounts other than K and > F are Canon shooters. And there's enough of them to seriously drive up > prices of desirable lenses (Go price a MC Rokkor 58mm f1.2 or a Zeiss > 21mm f2.8 Distagon vs what they were 3 years ago). And M42 is one of > the two mounts almost every Alt-lens shooter on Canon starts with (the > other being F mount). > > -Adam > > On Wed, Nov 19, 2008 at 7:49 PM, JC OConnell <[EMAIL PROTECTED]> > wrote: >> Nope, the M42 market prices would have fallen way off by now if the >> market for them was so small, they havent surprisingly. It's weird >> because you would think that most film users would have abandoned >> them > >> ( I have ), but the prices still are holding up on them (at least the >> good ones). They are going for more now then they were 5-10 years ago >> when market was mostly still film slrs in use. >> >> JC O'Connell >> [EMAIL PROTECTED] >> >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf >> Of David Savage >> Sent: Wednesday, November 19, 2008 7:17 PM >> To: 'Pentax-Discuss Mail List' >> Subject: RE: ANY M42 DSLR rumors (yet)? >> >> >> No, the supply of old M42 lenses is huge. The market for them is >> small. >> >> If the market was so huge someone would have made a M42 DSLR by now. >> >> And given the rise of the Yen, shrinking DSLR sale profits & general >> global economic difficulties, we're not going to see one anytime soon >> if at all. >> >> DS >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf >> Of JC OConnell >> Sent: Thursday, 20 November 2008 9:03 AM >> To: 'Pentax-Discuss Mail List' >> Subject: RE: ANY M42 DSLR rumors (yet)? >> >> M42 lens market is huge, not tiny! >> >> JC O'Connell >> [EMAIL PROTECTED] >> >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf >> Of John Celio >> Sent: Wednesday, November 19, 2008 3:15 PM >> To: Pentax-Discuss Mail List >> Subject: RE: ANY M42 DSLR rumors (yet)? >> >> >> The closest you will ever get to an M42 dSLR is a K2000/Km with an >> m42 > >> adaptor. >> >> There is zero chance that any manufacturer would make a low-profit >> camera to use no-profit used lenses that have been around for >> decades, > >> and which probably won't work well with a digital sensor anyway. >> There is such a tiny market for this that I can't see any reputable >> manufacturer trying to fill it. >> >> John >> >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above >> and > >> follow the directions. >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above >> and > >> follow the directions. >> > > > > -- > M. Adam Maas > http://www.mawz.ca > Explorations of the City Around Us. > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
