On Tue, Aug 30, 2011 at 07:25:41PM -0400, Paul Stenquist wrote: > > On Aug 30, 2011, at 4:42 PM, Collin Brendemuehl wrote: > > > They've got that 55/1.4 that I drool after, > > so how about a 30/1.4, and a companion 15ish fast lens? > > The fast 30 is a worthy goal, but they have a 14/2.8. Can't much faster than > that without getting really big and expensive. > > > > Perhaps a 100/2 or /1.7? > > Probably not enough buyers, considering the price that that a lens that long > and fast would require-- probably 2K. I think it would require a front > element of at least 90 mm.
I rather doubt that. If a 200/f2.8 can be made with a 72mm front element, I'd expect a 100mm/1.7 to be possible at something smaller than that - possibly even sharing the same filter thread as the 50-135/f2.8. -- 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.
