The problem a number of us have had is the rear spheric element, which is a glass/plastic composite, separates over time, with the symptoms of the lens becoming cloudy. Don Sanderson (I believe), tried to get a replacement from Pentax and was told that particular part was unavailable. They might have made more, but if that's the problem the lens is probably cooked.
John Coyle wrote: >Peter, I had mine fixed only a month or so ago, here in Oz, so it would seem >that parts are available. They replaced a tube thingy with guide-slots cut >in it for various cams, so I guess that's a pretty fundamental part! > >John Coyle >Brisbane, Australia >----- Original Message ----- >From: "P. J. Alling" <[EMAIL PROTECTED]> >To: "Pentax-Discuss Mail List" <[email protected]> >Sent: Wednesday, June 21, 2006 4:19 AM >Subject: Re: Your Favorite Zoom Lens > > > > >>Good luck, but I don't think parts are available. (The decay doesn't >>seem to come from use, but from time, so the spares probably fail at the >>same rate in storage as they do in the lenses). However keep us >>informed. If they can fix it then Pentax repair will probably be >>inundated. >> >>keith_w wrote: >> >> >> >>>P. J. Alling wrote: >>> >>> >>> >>> >>>>It's this one Shel, with the Power Zoom feature. >>>> >>>>http://www.bdimitrov.de/kmp/lenses/zooms/short/FA28-105f4-5.6-i.html >>>> >>>>It's supposed to be quite good. However I'd never even considered it >>>>since it's quite heavy and not very fast for all that extra weight, with >>>>a variable aperture. If I'm giving up a fixed aperture I would want a >>>>zoom to be very small and light as well. Just as an aside my favorite >>>>Pentax Zoom is the 20-35 f4.0 followed closely by the 28-70 f4.0, >>>>unfortunately the latter is becoming extinct due to lens element >>>>separation. >>>> >>>> >>>> >>>> >>>I have one of the latter that I just (belatedly) sent to Pentax to have >>>them >>>bless (= fix)! >>>I cross my fingers! >>>I bought it in that condition, and have been dragging my feet (other >>>things to >>>do that have a higher priority...) >>>If it tests okay after it comes back, I can see it becoming one of my >>>favorite >>>lenses. >>> >>>Glad you mentioned it. No telling how long it would have been! <g> >>> >>>keith whaley >>> >>> >>> >>> >>> >>-- >>When you're worried or in doubt, >>Run in circles, (scream and shout). >> >> >>-- >>PDML Pentax-Discuss Mail List >>[email protected] >>http://pdml.net/mailman/listinfo/pdml_pdml.net >> >> >> > > > -- When you're worried or in doubt, Run in circles, (scream and shout). -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
