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09-11-2017, 01:05 AM   #1
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RMC Tokina 135mm F2.8 Minolta MD Mount Prime on Pentax k3 II

Hi, I am newbie, need some help.
The question: Is "RMC Tokina 135mm F2.8 Minolta MD Mount Prime Lens" flexible with K3 II or should I purchase some adapters.

09-11-2017, 02:12 AM - 1 Like   #2
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You might want to have a look at this thread;
Minolta MD/MC to Pentax K Mount - PentaxForums.com
Adapters for the use of Minolta bayonets on Pentax need an optic in them to enable infinity focus. If the adapter is a cheap one the results from using one may be degraded.
09-11-2017, 03:05 AM - 1 Like   #3
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The RMC Tokina 135/2.8 is a lovely lens and was also made in Pentax K mount. I have it in both K and SR mounts (Minolta's manual focus lens mount is called SR, not MD or MC, which are lens series designations) and both were cheap (around 30 USD each) and shouldn't be very hard to find. I'd suggest looking for a K mount version and using that on your K3 instead.
09-11-2017, 04:56 AM   #4
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It would be MUCH easier just to get a 135mm lens for K-mount. There are plenty. These old MD or FD mount lenses can be used on mirrorless systems where they are easy to adapt.

09-11-2017, 05:20 AM   #5
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Agree with the above. 135mm lenses are cheap and plentiful, and most of them are pretty good. (It's hard to find a bad 28mm, 50mm, or 135mm) Find one in K-mount or M42 and don't bother with a corrected adapter.
09-12-2017, 12:09 AM - 1 Like   #6
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I've seen plenty of bad 135mm lenses around, so I'd be inclined to be quite picky with them. The Tokina is the best I've tried to date.
09-12-2017, 01:36 AM   #7
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For Pentax the Pentax-m 135mm F3.5 is very cheap and an excellent 135mm. You can also find a lot of cheap 135mm F3.5 Super-Takumars (multicoated or not).
If you want to look for the Tokina here is one attached to a P30 (lenses attached to camera's are cheaper because sellers are clueless). Pentax p30 | eBay
09-12-2017, 01:44 AM   #8
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Thanks for helping. Read some articles and from now I know a little which lens are flexible on my camera.

Interested what do you think about this adapter M42 Amazon

09-12-2017, 02:10 AM - 1 Like   #9
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It will do the job, but it is a cheap Chinese brand. I always advise to remove the small locking spring from those, because it can cause the adapter to get stuck in you body. The lens won't get locked but most lenses will stay put as long as their focussing is smooth enough. For a genuine adapter look on ebay (they never come with a removal tool as it is not needed). They are pretty pricey but you could take a shot at this one: GENUINE ASAHI OPTICAL CO., M42 LENS MOUNT ADAPTER FOR PENTAX K PK CAMERA BODIES | eBay
09-12-2017, 02:54 AM   #10
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QuoteOriginally posted by D1N0 Quote
It will do the job, but it is a cheap Chinese brand. I always advise to remove the small locking spring from those, because it can cause the adapter to get stuck in you body. The lens won't get locked but most lenses will stay put as long as their focussing is smooth enough. For a genuine adapter look on ebay (they never come with a removal tool as it is not needed). They are pretty pricey but you could take a shot at this one: GENUINE ASAHI OPTICAL CO., M42 LENS MOUNT ADAPTER FOR PENTAX K PK CAMERA BODIES | eBay
Thanks got it. Will purchase Asahi adapter. Can you advise some telephoto lens for it? At this moment searching for Jupiter-11A 4/135mm 135mm. Also need some good 400mm lens on m42(as I understood they are cheaper and works great)
09-12-2017, 03:52 AM   #11
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Longer legacy telephoto lenses are big and ungainly have poor contrast wide open and mediocre sharpness. You are better of getting the Pentax DA 55-300mm (the new version is very compact and pretty sharp). The extra 100mm can be cropped out easyly.
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