Re: Rear wide converters for DSLRs

[Paul Stenquist]

I'm not a techy, but this sounds like a great idea. It sounds like it 
would work. But even if it did, you might be right in thinking that 
there's not much of a market for it -- yet. There might well be once 
people understand the need to expand the wide lens choices.
Paul
On Dec 21, 2004, at 5:01 PM, Juan Buhler wrote:

The talk about the fiber optics devices made me think...
The main reason a wideconverter (as in the opposite to teleconverter)
that goes behind the lens is that the image circle of the lens is in
general not big enough.
Would it be possible to design a ~0.67x  converter, to effectively
bring back the angle of coverage of full frame SLR lenses to an APS
size sensor? Are there other technical limitations besides the size of
the image circle?
It would be really nice to use the wide angle lenses we already have
as real wides... It could even be made AF, like some teleconverters.
Am I missing something or is it just that it's probably not worth it
marketing-wise?
j
--
Juan Buhler
http://www.jbuhler.com
blog at http://www.jbuhler.com/blog