On 17/06/07, chucknorcutt@xxxxxxxxxxxxxxxx
<chucknorcutt@xxxxxxxxxxxxxxxx> wrote:
> My recollection from the introduction of the 4/3 system is that the 4/3
> system does not dictate the aspect ratio of the sensor. It only specifies
> the size of the image circle which just happens to be the diagonal of the
> E-1's sensor. Anybody who wanted to could make a square format 4/3 camera if
> they so desired as long as the image circle stays the same. It just occurred
> to me, however, that has big implications for the size of the mirror and
> could conceiveably introduce clearance problems. Maybe square 4/3 sensors
> live only in alternate universes.
Shouldn't do, after all, the mirrors in the E-300 and E-330 pivot on
the short side and don't have clearance problems. A square format
would have sides shorter than the long side of 4:3 or it wouldn't fit
in the same circle.
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