Re: Fuji's DSLR killer

[A complimentary Cc of this posting was NOT sent to
dj_nme
<dj_nme@xxxxxxxxxxxx>], who wrote in article <479c7e6b$0$9730$5a62ac22@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
I do not think that mount-to-film distance is relevant (unless Leica
mount prohibits any protrusion of the lens behind mount; does it?).

There is no prohibition on intursion into the body for Leica M lenses,
in fact the exact opposite: there are a few wide-angle lenses that
almost touch the shutter curtain on a film Leica M.
Unfortunately, these lenses can't be used on the Leica M8 because of
it's copal style vertical metal shutter which takes up too much space in
front of the sensor and would foul the rear lens element.

So mount-to-film distance is irrelevant, and your initial message does
not make a lot of sense.

The idea of dSLR it a zombie; it does not know it is already dead. It
would be really dead the moment a good way to focus without a
secondary mirror is invented.

There's the rub, there is currently no way of doing phase-detection AF
without mirrors (the AF sensor mirrors are located behind the reflex
mirror [which is actually slightly translucent] in a DSLR camera)
redirecting some of the image into the AF sensors.

There are other ways than phase-detection. TODAY these other ways are
not as convenient as phase-detection. But now, with live view, there
is a MAJOR incentive to investigate these alternative ways; when it
succeeds, dSLRs are dead.

I'm pretty sure that already today cheap EVFs are possible which
are [in most usages] more convenient than reflex-viewfinders. As
Minolta A2 teaches us, even 1024x786x3 with instant 2x/4x
magnification would be better...)

The Konica-Minolta Dimage A2 EVF is 640x480 (300k pixels),

Yes; and with instant-magnification, ALREADY with this low count, the
DISCUSSION whether it is better than reflex-view was meaningful (it
was not better, but was not PATHOLOGICALLY worse). This meas that
with 1024x786x3 (or, maybe, 1024x786x4), one has a very good chance to

they arrive at the large number of "pixels" by using Sigma's trick
of counting every sub-pixel (every R, G & B sub-pixel) and hence
described the EVF as having "900k pixels"

Given that anybody else counts the same, what is your point?
Moreover, with NxMx4, one could feed the RGBG sensor output without
much postprocessing; this way one gets closer to 4NM detail resolution
than to NM detail resolution.

The A2's EVF didn't really teach us anything, except that it must have
been too expensive to use and was dumped in the later Dimage A200.
^^^^^^

[Nitpicking:] it was nice TO USE.

Production cost (in 2004?) is only guesswork.

If the resolution of an EVF was good enough to not require focus
magnification, then it should be considered a true and viable
alternative to an optical TTL viewfinder.

Not before.

That's your OPINION. Mine is different (the possibility of instant
magnification SHOULD be taken into account when comparing optical vs EVF).



.

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