Re: M42 to K-mount adapter question
On Tue, 11 Sep 2012 18:50:02 +0100 Steve Cottrell co...@seeingeye.tv wrote: in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... I have used pentax. the spring was removed and a bit of loctite applied to the one I use with the 300mm eye glass screwdriver releases the other when required. no issues with focus. -- 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.
M42 to K-mount adapter question
Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche -- http://www.cottysnaps.com _ -- 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: M42 to K-mount adapter question
I found some third-party adapters to be a poor fit, which can lead to problems. The Pentax adapter works fine, but to release it, you have to reach into the gap in the adapter and lift the little spring that locks it in place. Never had problems with infinity focus. Paul On Sep 11, 2012, at 1:50 PM, Steve Cottrell co...@seeingeye.tv wrote: Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche -- http://www.cottysnaps.com _ -- 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.
Re: M42 to K-mount adapter question
I also have the Pentax adapter, and never noticed any infinity focus problem. As Paul stated, it can be a bit tricky to release and remove the adapter, but the Pentax version come with a little tool that makes the task easier. Dan Matyola http://www.pentaxphotogallery.com/danieljmatyola On Tue, Sep 11, 2012 at 2:07 PM, Paul Stenquist pnstenqu...@comcast.net wrote: I found some third-party adapters to be a poor fit, which can lead to problems. The Pentax adapter works fine, but to release it, you have to reach into the gap in the adapter and lift the little spring that locks it in place. Never had problems with infinity focus. Paul On Sep 11, 2012, at 1:50 PM, Steve Cottrell co...@seeingeye.tv wrote: Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche -- http://www.cottysnaps.com _ -- 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. -- 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: M42 to K-mount adapter question
The M42 to K-Mount adapter was designed as part of the transition from M42 to K-mount in the 1970s to allow owners buy a new Pentax body and make use of their existing complement of M42 lenses. It is designed to mount into the K-mount body and lock there in order to facilitate changing M42 lenses. - You fit it onto the lens and bayonet the assembly into place to fit the adapter. - When you remove the lens from the camera, the mount adapter stays in place to allow you to use other M42 lenses. - You release the adapter by slipping a thin screwdriver blade or feeler gauge into a slot on the adapter to release the catch and then pull it out of the K-beyonet coupling. It works perfectly for its intended purpose. I would never go with cheap alternatives on any lens mounting component. Good quality alternatives are always useful. :-) Some of the third party alternatives are good quality: they were designed to be fitted to the lens and to change with the lens. A key difference between the good ones and the poor ones, aside from material and finish quality, is that most of the good ones include include a ridge to press in the auto-diaphragm pin on M42 lenses and stop down the aperture. This is not important for Pentax M42 lenses ... all of them have an auto-manual diaphragm operation switch on the lens ... but becomes important for various third party lenses which lacked the A-M switch. If you don't have an A-M switch on the lens and you don't have the adapter with the ridge in it, the lens will always be at wide open aperture. I had a couple of the originals and had one fitted to each lens I was going to use, with a thread-locking fluid (temporary, not permanent) on the threads to keep it there. I'd removed the locking catch for the body so that each lens simply mounted and unmounted like a K-bayonet lens. -- Godfrey godfreydigiorgi.posterous.com On Tue, Sep 11, 2012 at 10:50 AM, Steve Cottrell co...@seeingeye.tv wrote: Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty -- 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: M42 to K-mount adapter question
by the way, the official name of the pentax version is mount adapter k. I have a few of them and they work and fit fine. - J.C.O'Connell hifis...@gate.net - -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Paul Stenquist Sent: Tuesday, September 11, 2012 2:08 PM To: Pentax-Discuss Mail List Subject: Re: M42 to K-mount adapter question I found some third-party adapters to be a poor fit, which can lead to problems. The Pentax adapter works fine, but to release it, you have to reach into the gap in the adapter and lift the little spring that locks it in place. Never had problems with infinity focus. Paul On Sep 11, 2012, at 1:50 PM, Steve Cottrell co...@seeingeye.tv wrote: Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche -- http://www.cottysnaps.com _ -- 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. -- 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: M42 to K-mount adapter question
The Pentax adapter works better than any other, the only caveats really are that you need a lens with an auto/manual switch, and when removing the lens from the camera the adapter stays with the camera. To remove it the locking spring visible through one of the cutouts must be released. A strong fingernail is good enough but a small thin blade, (knife or screwdriver), works as well. Now some non Pentax m42 lenses have external indexing systems for wide open metering that can interfere with proper mounting and operation on a K mount camera, (Mamyia Sekor TL/DTL are a system I know has this problem), Fujifilm m42 lenses use a similar system, I don't know if there's a problem with them as well. On 9/11/2012 1:50 PM, Steve Cottrell wrote: Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Don't lose heart, they might want to cut it out, and they'll want to avoid a lengthly 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.
M42 to K-mount adapter question
I started using M42 to Pk adapters almost since the Pk release, have used the original version (more than one copy) in KM, K2, Ricoh XR10, Lx, Mz5, PZ70, Pz1p and Mx, and never had infinity issues unless the camera was off the spec somehow. Yes, that happened with the K2, and later with the Lx. The original adapter by Pentax was designed to remain in the camera until a spring was pushed and the adapter released. I almost at once fitted the adapter to the lens, removing the spring. Never had one of my adapters stuck into the camera, have one that is shallower than the others - if I screw it to the end on the lens, the combo will not fit into the camera - any camera - so I have it spaced from the lens flange. Works fine this way. Here in BR some home-made adapters appeared lately, but they won't focus to infinity - they place the lens farther from the camera. I'd stick to original if possible, even spending some $15 extra. At least one lens - russian made 55mm, can't remember exact model, had to be adjusted - the lens had a small, almost cubic appendix that would get too deep into the camera (Mx) so I removed it. And also made the aperture blades closed by default, since the Mx wouldn't push the auto-aperture pin. Hope this helps, lf -- luiz felipe luiz.felipe at luizfelipe.fot.br -- 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.
M42 to K-mount adapter question
From: Steve Cottrell Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? I have the Pentax screw-mount adapter. Haven't used it in a while because I no longer need to use the one screw mount lens I have (Vivitar 20mm f/3.5). I never noticed any problems with infinity focus, but the adapter is a PITA to get back out. It's not really stuck. There's a little tab you have to release it's kind of hard to manipulate. -- 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: M42 to K-mount adapter question
on 2012-09-11 11:50 Steve Cottrell wrote in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? i have a no-name adapter from ebay that i've used with my Macro-Takumar 50mm with good results, including infinity focus; it is brass, not aluminum, and fairly well machined (not fastidiously deburred); it came with a removal tool, but i also removed the spring, which makes it easier to remove from the body, and just snugged it on the lens and used care (a little temporary thread goo like Godfrey suggests is a good idea if it will stay on a particular lens) the one i got is still listed by user astwise at $12 but ships to US only -- 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: M42 to K-mount adapter question
I have had a third party adapter stick on the body. I had to remove the entire k-mount from the body so that I could get at the back of it to dislodge the adapter. Paul On 12/09/2012, at 3:50 AM, Steve Cottrell co...@seeingeye.tv wrote: in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? -- 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: M42 to K-mount adapter question
Cotty, I both did and still occasionally do use this adapter. It's not the Pentax one, and it does stick! The trick is to use something like a nail file or small screwdriver to release the locking tab, at about 8o-clock on the adapter to release it; the ordinary lens release catch doesn't do it. HTH John Coyle Brisbane, Australia -Original Message- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Steve Cottrell Sent: Wednesday, 12 September 2012 3:50 AM To: pentax list Subject: M42 to K-mount adapter question Hi team, Had a question from a mate - I don't know the answer but I told him I knew a group of people who might ;-) -- in your Pentax days, did you ever use an M42 to K-mount adapter? ...and if you did, did you have any problems with the adapter sticking on the body or with infinity focus? I've trawled the Pentax forums, most recommend the genuine Pentax adapter which is expensive and hard to find - But, the genuine Pentax adapter itself is by all accounts, not perfect... Wondering whether to chance it with a cheapo alternative. --- Any experience with this? TIA -- Cheers, Cotty ___/\__ || (O) | People, Places, Pastiche -- http://www.cottysnaps.com _ -- 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.
