I bet the problem is you are dealing with a 16mm lens on a camera With a 45.5mm registration designed for full frame (longer) lenses AND you are talking a FAST lens AND you are talking a ZOOM lens. This lens is just trying to do too much, or another way of looking At it is the optical design team HAD to compromise something, and some distortion Was the compromise, rather than larger size, higher cost, slower speed, etc.
JC O'Connell [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Boris Liberman Sent: Sunday, November 09, 2008 12:57 PM To: Pentax-Discuss Mail List Subject: Re: DA* 16-50 review at photozone Let's just say that either measured or shown by example, the distortion at wide end makes this lens a no-go for me. Boris Subash wrote: > http://www.photozone.de/pentax/405-pentax_1650_28 > > <quote> > > Verdict > > It is difficult to find a final verdict for the Pentax SMC DA* 16-50mm > f/2.8 ED [IF] SDM. On the one hand it has some obvious problems like a > weak border performance at max. aperture and very pronounced lateral > chromatic aberrations (CAs). On the other hand it is really very sharp > and contrasty at medium aperture settings (f/5.6-8) and many users may > actually forgive the border problems at f/2.8 because you either stop > down for conventional photography or rely on the (very sharp) center > for shallow depth-of-field situations (e.g. portraits) anyway. The > build quality of the lens is also a step up from the consumer grade > Pentax lenses and the silent (although not overly speedy) SDM is an > extra bonus on top. The pricing of the Pentax 16-50mm f/2.8 is fair > relative to its performance and build quality. > > </quote> -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
