On Feb 24, 2006, at 8:47 AM, Sylwester Pietrzyk wrote:
Not necessarily a totally new shutter. The shutter might be limited
to 1/60 or so for top speed. Faster speeds would be attained by
switching the sensor chip on and off, as is already done in most DSLR
cameras.
Not all, just some - like Nikon D70 or Canon 1D.
I did not say all, I said most. I don't know about Pentax, but in
Nikon the D100 and D200 do this, and in Canon the 10D, 20D, 5D, and
presumably the new 30D. This "feature" is not always documented in
the tech specs, but I have been told by tech experts at Nikon and
Canon that this is the case in these cameras. It is the most
practical way to achieve high "shutter speeds" in DSLR cameras. I'd
bet that Pentax is getting 1/4000 this way, since the existing 645
shutter is not capable of that and the camera doesn't look large
enough to house a metal blade shutter as used by Mamiya and Contax.
Bob
