Digital BW, The Print

on 6/13/03 7:01 PM, Austin Franklin at darkroom@... wrote:

>> ...and also to produce a lighter, smaller, cheaper wide angle lens (I'm
>> talking about the 12-24mm zoom) that is designed to cover the small
>> CCD rather than the whole 35mm frame.
> 
> I was not aware from that.  Are you sure?

Austin - It's my understanding that they were able to make this lens smaller
(and thus cheaper than it might have been) by designing it to create a
smaller image circle.  This smaller circle will cover the
less-than-35mm-film-size sensor, but would not cover the full film size.  In
addition, it has no aperture ring, since it assumes that it will be used
with a digital body with one or more thumbwheels to set the f/stop.

Stephen Petegorsky
petegorsky@...
web site - www.spphoto.com