jlw
Rangefinder camera pedant
Brian Sweeney said:I still do not "buy" the story that a digital camera "must" have a vertical travel shutter. Kodak made a Digital version of the F3.
Well, it might be that a digital sensor wouldn't be able to hold its charge over the longer travel time of a horizontal-travel shutter or something like that. (The F3 shutter has a higher curtain speed than the M shutter.)
But I suspect it's more a matter that Leica's particular horizontal shutter, with its fabric curtains, wouldn't provide enough protection for a digital sensor. We've already had a thread about how quickly the sun can burn through fabric curtains. If it then burned through the sensor, you'd have a very expensive accident!
This argument wouldn't apply to the F3 shutter, which has titanium curtains (and a reflex mirror hanging down in front to protect it.) But re-engineering the Leica shutter to accept titanium curtains would likely be a somewhat expensive proposition -- at least, expensive enough to give them a rationale to use a modular vertical shutter instead. This type of shutter has been used in many Leica reflexes, so it's not as if it would be an unprecedented departure for them.
As to the height issue -- the modular blade-type vertical shutters ARE taller in overall height, because of the clearance required to give the blades someplace to retract into. I'm sure it would be possible to design a new RF mechanism that would allow for this extra height AND still work with "goggle" lenses -- but again, it would be an expensive proposition.
I'd say that if there's one thing that makes a Leica M a Leica M, it's that range/viewfinder module, which is the single most highly developed, most complicated and most expensive part of the camera. If Leica were to switch to a modular vertical shutter, I think it would make more sense for them to preserve the design of the RF/VF module at the expense of obsoleting the "goggle" lenses, rather than vice-versa. (After all, they don't have any incentive to encourage you to keep using your old Leica lenses... they want you to buy new Leica lenses!)
Overall, if I were in Leica's shoes, I'd conclude that the most effective way of reducing the manufacturing cost of my M camera line while preserving its identity AND creating a path to a digital M would be to replace my current in-house-made, hand-assembled main casting and shutter with an outsourced main casting and modular vertical shutter assembly (something, ahem, very much like the inner guts of a Bessa R3a/Epson R-D 1.)
I'd put my crown-jewel rangefinder module on top of this, fit it into my usual beautifully finished outer casing, and add my usual smooth, beautifully finished controls. The resulting camera would look, handle, and shoot just like Leicas of yore, except that it would be a little taller and a little noisier (because of the modular vertical shutter) but would have a higher X-sync speed (ditto.) It would cost quite a bit less to manufacture and require less highly-skilled labor in my factory, while still letting me sell a la carté customized versions, since these involve only the outer "skin."
In this hypothetical future, our 35mm rangefinder camera universe would consist of three price levels of camera on the same Cosina-sourced inner chassis: the Bessa, the Zeiss Ikon, and the putative Leica M-whatever. They'd be differentiated by rangefinder base length, framelines, metering system features, and general appearance and finish -- but the generic "guts" would be the same on all, making them more economical to manufacture.
That may not be the future we'd like to see for Leica -- but as opposed to no future at all, it doesn't sound so bad...