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Solved: PK-m43 adapter stuck on a P/KR lens (no pin)
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PostPosted: Sat Mar 02, 2013 11:26 am    Post subject: Solved: PK-m43 adapter stuck on a P/KR lens (no pin) Reply with quote
I recently bought an Olympus OM-D E-M5 and have started experimenting with manual lenses. Since I'm a Pentax user as well, I also have many M42 and P/K lenses. I bought Rainbowimaging adapters P/K-m43 and M42-m43. The latter works just fine. However, I just tried the P/K adapter for the first time and it seems to have stuck on the lens. The lens in question is a Vivitar Series 1 70-210mm (Komine) which was originally for Ricoh (hence P/KR). Thre was the notorious Ricoh pin but I have removed it and the lens does not get stuck on my Pentax camera bodies.

Now the adapter turned with normal friction to the lens but I can't make it turn back even with reasonable force. There's a screw of some sort on the adapter that can be rotated with fingers, but tightening, releasing or removing it does not help.

Any idea what's up? Is the adapter just so roughly manufactured that I need to use more force? Thanks.

Last edited by Raffwal on Sat Mar 02, 2013 2:02 pm; edited 1 time in total


PostPosted: Sat Mar 02, 2013 12:18 pm    Post subject: Reply with quote
Oh boy, do I feel like an idiot! I have pushed and pulled, screwed on and off the small button and used quite a lot of force trying to detach the adapter. And then suddenly I accidentally SLIDE the button towards the camera side end of the adapter and it works like a charm. D'oh!


PostPosted: Sun Mar 03, 2013 9:09 am    Post subject: Reply with quote
I am glad that your problem was not a problem Smile

Congratulations on your Komine Vivitar S1 70-210. I have the previous version of Tokina, but Komine version is considered the best of all. It is a lens with outstanding quality at the level of the best in my opinion. It is heavy, the one-touch zoom is not easy to handle, needs time to adapt ... but gives great results.

Enjoy it, happy shoots!


PostPosted: Sun Mar 03, 2013 12:12 pm    Post subject: Reply with quote
anktonio wrote:

Congratulations on your Komine Vivitar S1 70-210. I have the previous version of Tokina, but Komine version is considered the best of all. It is a lens with outstanding quality at the level of the best in my opinion.


Interesting. I've owned copies of the first two versions, but I've never had a chance to use the third. Me, I've always preferred the Tokina-made one -- the 2nd version, f/3.5 constant aperture with a 62mm filter size. Old habits die hard -- I like constant aperture zooms because of all the manual mode shooting I've done, especially with slides. I don't have to adjust the exposure settings as I zoom in or out. But then a variable aperture lens, like the 2.8-4, is not only easier to produce, but tends to be sharper than constant aperture zooms as well.

Nonetheless, the great thing about the vintage Series 1 70-210s is that it really doesn't matter which of the first three versions one uses -- they'll all produce excellent results, and only very close examination will reveal any differences in sharpness.


PostPosted: Sun Mar 03, 2013 2:22 pm    Post subject: Reply with quote
It's a fine piece of glass, but due to being so big and heavy and somewhat clumsy re: handling, I haven't used it that much. The size isn't certainly dimished by attaching it to an E-M5 and not a (Pentax) DSLR.

Mine is the Komine version as I mentioned, but unlike the Pentax P/K version, the Ricoh version does not come with the A aperture mode. Not that it would make a difference with m43 cameras, but with Pentax DSLRs the A could be useful.

Here's one source for information on these lenses, but perhaps you're familiar with it already.

http://www.robertstech.com/vivitar.htm
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