sgy1962 said:
Why a digital rangefinder? I suppose to use existing M lenses is one reason, but that reason is dilluted a little because of this 1.33 crop factor.
Actually, if one is going to throw away some portion of a lens's performance via crop factor, it's better to start with the best possible lens in the first place. 75% of 90 lpmm is still better resolution than 75% (or 50%) of 70 lpmm.
sgy1962 said:
I suppose if someone just likes using a rangefinder, that's a sufficient reason.
Yep.
sgy1962 said:
But it seems to me that many of stengths of a film range finder -- no mirror slap; small and light, ect. -- are thrown out the door in the digital age....
Why? Digital SLRs no longer have mirrors and finder blackout?
sgy1962 said:
....where many are smaller and lighter with instant presto change of iso settings
Perhaps point and shoots. Instant change of ISO is pretty useless when the sensor is so small that only the base ISO of 50 or 100 is usable.
sgy1962 said:
...and have high opitcal qualities at a fraction of the cost,
Such as...? Excellent optical quality at f/5.6 is fine, but I want to be able to shoot at f/1, f/1.4, f/2 - and ISO 400/800/1600 (or thereabouts) and still have excellent optical quality.
sgy1962 said:
...or sacrifised when with a digital M (e.g., losing the mechanical nature of the Leica M). Just curious.
The mechanical nature is one attribute of a Leica M - but only one of many. Since digital is by definition electronic, one cannot have both digital and mechanical. Therefore one must make a choice - film and mechanical, or digital and electronic. I do not see any reason why I should give up the OTHER unique attributes of Leica M photography (most of which are far more important than the "mechanics", as any M7 user will testify) simply to do it digitally.
I guess for me it comes down to this: there are many digital SLRs that can shoot at high ISOs with reasonable quality and accept fast prime lenses. A small portion of them allow for crisp split-image manual focusing - but that portion is generally the heavier, more professional cameras (try and put a split-image screen in a DRebel or D50/D80). I guess a Nikon D300 that took SD cards would be worth looking at - at least one can get 3rd-party split-image screens and it would meter to some extent with manual lenses - but it ain't here yet.
There are many light and compact P&S cameras, some with quite good optical quality, but all with f/3.5-f/4.5 fixed zoom lenses, or the occasional f/2.8 fixed focal-length prime lens (Ricoh, e.g.) None can shoot above ISO 400 without producing colored oatmeal(porridge) for an image. And all are AF-centric - if they offer manual focus at all, it is poorly implemented and harder and slower to use thatn AF.
As in the days of film, a high-quality rangefinder is still the only way to get SLR performance (ISO speed, interchangeable lenses of high (>f/2.8) aperture, rigorous and fast split-image focusing) in a definitively smaller, lighter package.
The only SLR (in fact the only other digital camera) that realistically compares to the M8 in build and attributes, IMHO, is the Canon 1D - 1.3x crop, 8 Mpixels, split-image screen available, SD cards available. it weighs 2-3 times as much, depending on lens, and bulks at least 3x the volume. And costs $700 less than the M8 (once one buys the split-image screen). Hardly an enormous savings given the ergonomic difference. Or, of course, the Leica R9/DMR combo, which is much heavier, and MORE expensive by several kilobucks, especially if I have to change lens systems.