On 8 Jan 2005 at 22:46, Alan Chan wrote: > I remember you asked me about the built-in filters of the 15/3.5. I just > relubed > my lens last week and took a snap of the filter disc. The filters are actually > SMC glasses, about 1mm thick and 1cm diameter (not exact). The edges of the > filters are half perpendicular (up), and half 45 degree roughly (down). The > filters actually fit the rims rather loosely, but were held by a few thin > metal > pieces as shown in the picture. To get to the filter disc, everything on both > sides of the lens must be removed, except the focusing helicoid. There is > nothing to calibrate so everything else should be pretty straight forward when > assembling. BTW, the 2nd front lens group assembly should be turned clockwise > to > loosen, not anti-clockwise (but I don't know if this applies to all 15/3.5). > Hope this help, if a little late. :-) > > http://www.pbase.com/wlachan/image/38434710/original
Hi Alan, Thanks for the pic and explanation. I haven't take my A15/3.5 apart yet, I would love the change some of the filters though it's not as important as it once was now I'm primarily shooting digital. Did the re-lubing make much difference to the focus feel of the lens? Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
