No, the issue is sample to sample variation on K lenses. A lenses are essentially calibrated (A set amount of aperture lever deflection indicates a set amount of aperture change). K lenses are designed to move until the stop is hit, where the stop is provided by the consistent aperture ring itself.
-Adam Gonz wrote: > "A" lenses are no different, except that the actuator is linear. If you > put your M or K lense on f22 and move the actuator, it acts the same > way. Since they have to at least work with the mechanical stop based > method, this means that they are machined to at least this accuracy. So > it should work, I disagree with you. > > > [EMAIL PROTECTED] wrote: >> I don't think this is possible because K/M >> Lenses were not designed for partial closure >> Of the aperture and do not have consistant >> Non linear closure from sample to sample. It >> Was a simple OPEN/CLOSE/OPEN design. >> jco >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of >> Gonz >> Sent: Friday, October 13, 2006 4:47 PM >> To: Pentax-Discuss Mail List >> Subject: Re: K1D aperature simulator survey, part Deaux >> >> The firmware on the Samsungs is definitely different, see the pics >> floating around for the K10D samsung equivalent. The UI is distinctly >> different. >> >> If the firmware is different, then they could actually implement the >> whole aperture simulator thing in firmware if I understand correctly how >> >> its supposed to work. The way you could do it is by inputing the lens >> being used, say K50 1.4 into the body UI when you powered up the camera. >> >> All they would need would be the actual non-linear response of the >> aperture linkage (which would be in a table in the firmware) and they >> could close down the aperture to the correct position as dialed in by >> the user on the body. The user would have to set the lens to f22 or >> whatever the min on the lens is, effectively mimicing the "A" setting. >> Knowing exactly what lens is mounted would be used not only for the >> aperture response, but the focal length for SR, the wide open aperture, >> and possibly even used for multi-segment metering. >> >> [EMAIL PROTECTED] wrote: >> >>> Umm.... Hello! It's another moot question! Samsung bodies are, and >>> will always be, re-named Pentax bodies. They will not produce a >> unique >> >>> k-mount body. Stop with the surveys and get a grip. >>> >> > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
