once again you prove you are a total thickhead when it comes to M42 usage and knowledge. The autoaperture function/feature is a KEY feature of M42 ( or any later lenses for that matter ) that does not even need a meter for it's benefit. Pentax made a whole bunch of METERLESS SLR cameras in M42 era that had autoaperture feature. I already stated that, but it doesnt seem to sink into your incorrectly biased brain. Auto aperture and metering are two different things completely and you dont need to meter or even have a meter to benefit from autoaperture.
jco -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Maas Sent: Wednesday, February 14, 2007 4:02 PM To: Pentax-Discuss Mail List Subject: Re: Pentax K 28mm f2.0 Lens The Metering Stop Down Button and the Auto-Aperture mechanism are one and the same. You can't have one without the other, otherwise your metering wouldn't work. The only M42 SLRs that lacked the metering stop-down button replaced it with a dual-mode shutter release (and got the worst shutter release feel in history, that would be the Chinon CM-3 and IIRC the CE-3 as well). I don't really give a shit about mythical M42 DSLR's. They don't exist and likely never will. 5D's and M42 adaptors exist and work quite well. -Adam J. C. O'Connell wrote: > you are clueless when it comes to M42 usage. > Auto aperture is a VER VERY IMPORTANT > and USEFUL SHOOTING FEATURE all by > itself and there are M42 bodies that dont even > have meters at all that have autoaperture function > ( a whole bunch of Pentax ones too ). > Wake up, and you DID state "all that is missing" > was some sort of metering button. NO, the autoaperture support for > autoaperture M42 lenses is MISSING TOO. I was talking about a M42 DSLR > body which of course would have autoaperture support for M42 lenses, > there wouldnt be any other reason to make one. > jco > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf > Of Adam Maas > Sent: Wednesday, February 14, 2007 2:30 PM > To: Pentax-Discuss Mail List > Subject: Re: Pentax K 28mm f2.0 Lens > > > Show me exactly where I stated 'M42 adaptors do auto-aperture'. I > didn't. As far as I'm concerned, the metering stop down button IS the > auto aperture feature. They're directly (and physically) connected on > M42 SLR's that feature that capability. That's exactly what I was > referring to when I commented on the metering stop-down button, since > it's all the same basic mechanism. > > You don't need a metering stop-down button if the body doesn't do > auto-aperture and you do if the body does do auto-aperture. There's no > other reason for the stop-down button to exist. > > -Adam > > > > J. C. O'Connell wrote: >> yes you did, you stated that : >> >> "All it's missing is the metering stop-down button." >> >> This is not true or and its very importantly false. >> >> Automatic aperture function of automatic >> aperture M42 lenses is a key feature to making >> them user freindly and is not just a metering feature. >> >> jco >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf >> Of Adam Maas >> Sent: Wednesday, February 14, 2007 1:26 PM >> To: Pentax-Discuss Mail List >> Subject: Re: Pentax K 28mm f2.0 Lens >> >> >> I am not mistaken. I never claimed the adaptor does auto-aperture >> (Hence >> >> the note about the lack of stop-down metering switch, which also uses >> the auto-aperture function). >> >> -Adam >> >> >> J. C. O'Connell wrote: >>> I believe he is mistaken, you cannot get a M42 >>> adapter that does auto aperture on M42 lenses >>> and thats what I was talking about, a M42 >>> DSLR that has a real M42 mount and supports >>> auto apeture M42 lenses fully like most M42 >>> film cameras did. >>> jco >>> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf >>> Of David J Brooks >>> Sent: Wednesday, February 14, 2007 11:01 AM >>> To: Pentax-Discuss Mail List >>> Subject: Re: Pentax K 28mm f2.0 Lens >>> >>> >>> Is the adaptor readlily available out there. >>> >>> Dave >>> >>> On 2/13/07, Adam Maas <[EMAIL PROTECTED]> wrote: >>>> The Canon 5D with the addition of a $10 adaptor is for all intents >>>> and purposes a M42 DSLR. All it's missing is the metering stop-down >>>> button. >>>> >>>> -Adam >>>> Who shoots M42 on Canon EOS with his ST's >>>> >>>> >>>> J. C. O'Connell wrote: >>>>> Sorry I cant help you out on that one, ( Just got >>>>> my own personal K28/2 sample a few months ago). I have a similar >>>>> goal, I am now collecting the entire "K" series lenses to go along >>>>> with my entire SMCT lens series. A few Ms and As too, but not >>>>> collecting those series. I bet collecting the entire "A" series >>>>> would be a real challange though. >>>>> >>>>> Speaking of the SMCTs, if somebody ever makes a hi-rez M42 FF >>>>> DSLR, > >>>>> I will be in hog heaven. So far I am seeing really good results >>>>> with the few I tried so far casually on the istDS. >>>>> >>>>> jco >>>>> >>>>> -----Original Message----- >>>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >>>>> Behalf Of Jim King >>>>> Sent: Monday, February 12, 2007 7:32 PM >>>>> To: pdml@pdml.net >>>>> Subject: WTB: Pentax K 28mm f2.0 Lens >>>>> >>>>> >>>>> As many of you know, I'm a collector as well as a user of Pentax >>>>> lenses. I need a copy of this lens to help me reach my goal of >>>>> owning all of the Pentax K-mount 28mm lenses. If anyone here has a > >>>>> copy which they would be willing to sell me I'd be very grateful. >>>>> Please contact me at [EMAIL PROTECTED] - thanks! >>>>> >>>>> Regards, Jim >>>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> >> > > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
