There's plastic and then there's plastic. A good engineering plastic is a far cry from the everyday toy plastic that most are familiar with.
-----Original Message----- >From: David Parsons <parsons.da...@gmail.com> >Subject: Re: New DA50/1.8 Plastic Mount > >Plastic is good enough to be used in hips and knees. I'm sure that a >lens mount will hold up fine. > >On Wed, May 23, 2012 at 12:20 PM, P. J. Alling ><webstertwenty...@gmail.com> wrote: >> Lenses are a long term investment, at least they used to be, plastic on a >> bearing surface implies the opposite. No matter what plasticizers are lost >> over time and the material becomes brittle and subject to cracking. >> Eventually something important will break. Heat will exacerbate this >> process. If the lens was cheap enough to be disposable that would be fine >> but it's not really. >> >> >> On 5/23/2012 10:02 AM, Charles Robinson wrote: >>> >>> On May 23, 2012, at 8:25, Tom C wrote: >>> >>>> Come on Pentax! How else are you shaving costs? Talk about making >>>> yourself look cheap. >>>> >>> I have no complaints with the nice crisp images coming from my all-plastic >>> DA 35 f2.4. It seems to be holding up quite well and frankly I don't give a >>> rat's patootie what the mount is made of as long as it works. And it does. >>> >>> -Charles >>> >>> -- >>> Charles Robinson - charl...@visi.com >>> Minneapolis, MN >>> http://charles.robinsontwins.org >>> http://www.facebook.com/charles.robinson >>> >>> >> >> >> -- >> Don't lose heart! They might want to cut it out, and they'll want to avoid >> a lengthily search. -- 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.
