I don't think there is any question about the advantage of
telecentricity. My problem with Oly was not only the exaggeration,
but that they invented the concept and the solution. They also
implied it was so important that all lenses had to be "digital".
Telecentricity is only important for wide angle lenses. There is no
problem with the angle of incidence with a 90/2 or probably even at
the wide end of the 35-80. Many of Nikon's wide angle lenses were
redesigned for telecentricity even for the smaller DX sensor. The
puzzle is why Canon did not and their customers are seeking WA lenses
from other makers to adapt to their cameras, but maybe Canon also
thinks the advantage is exaggerated.
Winsor
Long Beach, California, USA
On Feb 9, 2006, at 8:59 AM, Joel Wilcox wrote:
>
> On 2/9/06, AG Schnozz <agschnozz@xxxxxxxxx> wrote:
>>> Many of us remember the Oly presentation that explained why OM
>>> lenses would not be usable on a digital body. To a certain
>>> extent Canon and Nikon have shown it to be exaggerated, but
>>> it is interesting to see the latest Luminous Landscape
>>> article has a reference to colour shifting across the sensor.
>>
>> I do believe that they did stretch it a little bit, but it
>> really is true. However, in the case of the 4/3 sensor, the
>> amount of it is very limited. A full-frame 35mm definitely
>> would be problematic if, say, the sensor used in the E-1 were
>> FF, 35mm.
>
> As I said in a different thread, I have also noticed the improvement
> in color with DZ lenses. I have some doubts as to whether this is due
> to telecentricity or just that the lenses incorporate improvements
> that also are shared by late-model Zuikos like the 90/2 or 35-80/2.8
> (the best of my Zuikos for color). Maybe it's both.
>
> Joel W.
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