Bob Shell wrote:
On Feb 24, 2006, at 11:34 AM, Adam Maas wrote:
Bob, are you sure about that? I know the Nikon D1's do this, as does
the D50 and D70(s). As far as I'm aware the D100, D200 and all the
D2's do not. The way to tell is the flash sync (The 1/500 sync
cameras use hybrid shutters, 1/250 and below do not, relying on
mechanical sync).
The current Canon's don't do this, which can be confirmed by simply
listening to the shutter. Pentax and KM also do not (The sensor in
the Pentax, KM and D100 do not support this, the modified version of
this sensor in the D70 and D50 does).
But I do agree that the 645D is quite probably using a hybrid shutter.
No, I'm not sure. I just rely on information from tech experts at the
company. In the case of Nikon, that's Lindsay Silverman and in the
case of Canon it's Chuck Westfall.
Bob
I think that in this case, the wires may have gotten crossed somewhere,
because while these cameras do turn the sensor on and off for exposure
(primarily as a power saving and dust control measure) they don't use
hybrid shutters, with the few exceptions mentioned above. Most DSLR's
use very vanilla shutter setups, although some do use the smaller sensor
size to enable faster sync's (Which is how you get a 1/180 sync out of a
shutter that does 1/125 when used in a 35mm film body).
-Adam
