What is marketable vs what is possible with primes are two different things. What I didn't agree with is the contention that SOTA zooms can match or beat SOTA primes in the ultra wide range of focal lengths. What is on the market is a different matter altogether but there is that 15mm DA lens, but I doubt its SOTA because of its low cost relatively speaking.
-- J.C. O'Connell (mailto:[email protected]) Join the CD PLAYER & DISC Discussions : http://tech.groups.yahoo.com/group/cdplayers/ http://launch.groups.yahoo.com/group/cdsound/ -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Larry Colen On 4/15/2010 10:35 AM, J.C. O'Connell wrote: > How many times do I have to tell you to make the point? > A zoom has to do much more than a prime so the zoom cannot > be "better" or even equal to a prime with BOTH using state of the art > designs and optics, period. Whatever they do to improve zoom > performance over the years can also be applied to primes. I think that you are confusing physics with market realities. I don't think that anyone is doubting that it would be possible to make a prime that outperforms any of the ultrawide zooms on the market. The reality is that (to a first approximation) nobody is doing so. The lens manufacturers seem to think that nobody is interested in prime lenses. How many image stabilized primes (under 400mm) are made these days? How many prime "kit lenses" are there? The analysis of "would people rather buy three primes to cover the range of 10-20mm or one zoom?" seems to always come up with the answer "one zoom". -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
