Archived posting to the Leica Users Group, 2013/11/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Steve Barbour steve.barbour at gmail.com On Nov 7, 2013, at 7:39 AM, FRANK DERNIE <frank.dernie at btinternet.com> wrote: > Well, being pedantic, it wouldn't be an "M" camera if it didn't have a > rangefinder:-) > OTOH a "M" mount EVF camera would be welcomed by many. Given the > amortization of design, tooling and development cost over a relatively > tiny production volume and shortage of other product turnover to finance > it it could never be made anything like as cheaply as the Sony though. > Would anybody buy an expensive M-mount EVF camera (other than we LUGgers)? true, especially if they could keep the strap lugs from falling out. Steve > > > >> ________________________________ >> From: Frank Filippone <red735i at verizon.net> >> To: 'Leica Users Group' <lug at leica-users.org> >> Sent: Thursday, 7 November 2013, 15:14 >> Subject: Re: [Leica] Leica lenses on Sony A7 >> >> >> Bob Adler has stated that the dynamic range of the M far exceeds ( 2 >> stops?) >> the M9, and closely approaches his Phase 1 MF back. >> >> But back to the main discussion..... If the camera is applying >> corrections >> to the image, rather than a computer, aren't the same issues at play? To >> theory, yes. In practice, the microlenses take away part of the >> problem.... >> As Adler's shot of the Caf? shows, even at 21mm, there is some vignetting >> left, even on a M body. >> >> The sensor in the M9 ( and M8 and M) all have (M lens) tuned microlenses >> to >> help with the vignetting...... You will not get these in a non-Leica >> camera >> body. >> Of course, the amount of need of vignetting correction is dependent on >> your >> lenses... if you shoot a lot of 21mm, then it is handy that the >> microlenses >> are there. If you shoot at a minimum of 35mm, not so important..... and >> at >> 50mm and longer, not important. >> >> Personally, I do not find the vignetting issue a game killer. You can >> correct it. You can live with it, and for 150 years, it was not only >> uncorrectable, but desirable as part of the physical picture "frame". >> And >> again, it depends on your scene..... sometimes having the corners a bit >> darker is a real annoyance..... sometimes it makes not an iota of >> difference >> and adds to the ambience of the scene. >> >> The A7r is the camera Leica should be concerned with.... You may not call >> it >> a RF camera, but it represents the best of the RF camera genre..... Small, >> full featured, high resolution sensor (36MP), stealthy (? Not so sure yet, >> but the M9 is no Rollei TLR either in the noisy department), has real >> advantages in focus when in darkened lighting, reliable from the >> standpoint >> of small number of mechanical parts to go out of calibration, and best of >> all, it looks through the lens, and can use Leica (M or R) glass. If the >> focus peaking is good (jury is still out), it is a killer solution to the >> M >> and many DSLR cameras. >> >> Leica, if you are listening: The M Type 240 is going to have its lunch >> eaten because of this camera and others that will follow it. >> >> Go make an EVF only M camera. The competition is changing the >> market...... >> >> Frank Filippone >> Red735i at verizon.net >> >> >> If you needed to increase the exposure in the main part of the field by >> say >> two stops for every exposure and apply a colour correction you would >> appreciate that the correction comes at a cost of dynamic range, tonal >> depth >> and noise performance for example. It's happening in the corners for every >> frame with wides on the M9. Does it matter in practice??? yeah no maybe >> depends ;-) >> >> In the case of the M9, I can comment that the amount of correction with >> wider lenses is quite significant to achieve the desired result at all. I >> was a firmware tester for the system. >> >> The M is another discussion. I just recovered a few poor exposures that >> were >> two stops or more under (albeit minimum ISO) with excellent >> results...remarkable. >> http://www.pbase.com/hoppyman/image/153233601 >> >> >> >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information