Re: Infinity adjust on an A24-50 f/4 lens
I don't know, but if you want it done right send it here. Best 50 bucks I've ever spent... http://pentaxs.com/index.html On 6/21/2011 9:50 AM, Charles Robinson wrote: I just pulled an old lens out of the box and popped it onto my K10D with the idea that my son could use it to see if he liked the idea of a bigger camera. Darned thing doesn't focus to infinity, though! Why did I never notice this before? I've seen a few different pages out there about adjusting infinity focus for some older Takumar lenses... is it pretty much the same deal for every lens? Remove front ring, loosen screws down in the barrel ugh. I'd love some helpful pointers. Failing that, anyone with a craptastic 28-80 laying around... maybe I'll just buy him one of those and throw the 24-50 back in the drawer. Heck, then he'd have autofocus and could use the SR features as well. Ideas, anyone? -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- Where's the Kaboom? There was supposed to be an Earth-shattering Kaboom! --Marvin the Martian. -- 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.
Re: Infinity adjust on an A24-50 f/4 lens
On Jun 21, 2011, at 21:08, Brian Walters wrote: >> >> The fix is the same as for older Super Takumars... >> >> Spin off the front "faceplate". Set the lens at infinity. Loosen the >> three screws which hold the collar to the internal assembly... back the >> collar off a bit and tighten one of the screws down. Now turn the collar >> a bit more towards infinity and check the view through the viewfinder. >> Repeat until you can get to (or maybe just a shade past) infinity. >> Tighten all 3 screws and replace the front ring around the outside face >> of the lens. >> >> Took about 10 minutes, and I've never done this before. Coolness. > > > > Well I don't know if I'll ever need this but filed for future reference. > Just to keep it fun, I also managed to disassemble an old 28-80 lens which apparently had been dropped (thanks, daughter-of-mine-to-whom-I-lent-it-in-good-condition!) and figured out how to get into it and reassemble it so that it would zoom again. That was actually entertaining. The knowledge that it could be replaced for $20 kept the fear-factor quite low. Focus/infinity adjust on those is stupid simple. Remove rubber ring, remove TAPE which is keeping the front element in place with reference to the barrel... rotate front element, replace tape, replace rubber ring. VERY cheap, but I guess it works. -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- 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.
Re: Infinity adjust on an A24-50 f/4 lens
On Tue, 21 Jun 2011 20:11 -0500, "Charles Robinson" wrote: > On Jun 21, 2011, at 8:50, Charles Robinson wrote: > > > I just pulled an old lens out of the box and popped it onto my K10D with > > the idea that my son could use it to see if he liked the idea of a bigger > > camera. > > > > Darned thing doesn't focus to infinity, though! Why did I never notice > > this before? > > > > The fix is the same as for older Super Takumars... > > Spin off the front "faceplate". Set the lens at infinity. Loosen the > three screws which hold the collar to the internal assembly... back the > collar off a bit and tighten one of the screws down. Now turn the collar > a bit more towards infinity and check the view through the viewfinder. > Repeat until you can get to (or maybe just a shade past) infinity. > Tighten all 3 screws and replace the front ring around the outside face > of the lens. > > Took about 10 minutes, and I've never done this before. Coolness. Well I don't know if I'll ever need this but filed for future reference. Thanks! Cheers Brian ++ Brian Walters Western Sydney Australia http://lyons-ryan.org/southernlight/ -- -- http://www.fastmail.fm - Faster than the air-speed velocity of an unladen european swallow -- 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.
Re: Infinity adjust on an A24-50 f/4 lens
On Jun 21, 2011, at 8:50, Charles Robinson wrote: > I just pulled an old lens out of the box and popped it onto my K10D with the > idea that my son could use it to see if he liked the idea of a bigger camera. > > Darned thing doesn't focus to infinity, though! Why did I never notice this > before? > The fix is the same as for older Super Takumars... Spin off the front "faceplate". Set the lens at infinity. Loosen the three screws which hold the collar to the internal assembly... back the collar off a bit and tighten one of the screws down. Now turn the collar a bit more towards infinity and check the view through the viewfinder. Repeat until you can get to (or maybe just a shade past) infinity. Tighten all 3 screws and replace the front ring around the outside face of the lens. Took about 10 minutes, and I've never done this before. Coolness. -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- 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.
Re: Infinity adjust on an A24-50 f/4 lens
I recently got one of those A 24-50mms but haven't tried it on my K-x yet. I'll see if I can give it a go tonight and see if I have the same problem. Darren Addy Kearney, Nebraska -- 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.
