When in doubt … send it to Essex in New Jersey.
On May 2, 2012, at 7:45 AM, Walt Gilbert wrote: > Ah, I see. > > This is clearly a task best left to people who know what they're doing. I > thought maybe, for once, it might be a reasonably simple fix. I'll just leave > it be and use it as an M lens until I find that "Free Lens Repair" place > nobody's been talking about. > > Thanks to all for the input! Maybe someday, when I feel adventurous enough to > risk having two useless lenses, I'll take it up again. > > -- Walt > > On 5/1/2012 10:44 PM, Bob Sullivan wrote: >> 1) If you don't need to fix the A50/1.7 you have now, don't disassemble it >> !!! >> 2) If you are bound and determined to disassemble it, then >> a) go into the kitchen where you have good light and a vinyl floor. >> b) do the disassembly in a big tray with tall sides (like for >> breakfast in bed). >> c) locate the tiny ball bearing by removing the aperture ring very slowly. >> d) find and put the bering and tiny spring behind it in a safe place. >> 3) When you re-assemble the lens, use the index finger of your third hand >> to keep the spring and bearing pushed into it's tiny chamber. >> Regards, Bob S. >> >> On Tue, May 1, 2012 at 9:15 PM, Darren Addy<[email protected]> wrote: >>> The problem is that the ball bearing is held "high" by a spring beneath it. >>> You must compress the spring so the ball bearing is low enough to slip >>> the aperture ring over. >>> Now imagine trying to keep the ball bearing "down" as you slide the >>> ring one. As you slide the ring, whatever you were holding the bearing >>> down with is in the way. You need something stiff and THIN that will >>> be strong enough to hold the bearing in, and yet thin enough that you >>> can pull it out from between the aperture ring and the lens when the >>> ring is *in place*. >>> >>> Haven't figured out what that stiff thin thing is yet and I have a >>> couple of repaired lenses patiently waiting in baggies for me to >>> figure it out. >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> [email protected] >>> 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 > [email protected] > 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 [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
