Like the stock of a Glock pistol? Or a football helmet? On May 23, 2012, at 5:47 PM, Kenneth Waller wrote:
> 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. -- 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.
