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04-10-2017, 04:21 AM   #1
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Nikon / Canon lens on Pentax KAF

Hey Guys,
I am looking for a lensadapter so i can put Canon or Nikon lenses on my Pentax.
The adapter should have the possibility that the autofocus work.

I hope you can help me.

regards STEEW

04-10-2017, 04:35 AM - 1 Like   #2
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The dilemma is the flange focal distance. Canon EF is 44mm and Nikon F is 46.5. Pentax K-mount is 45.46mm. As result, any adapter needs to have corrective optics to be able to focus to infinity and if you want AF to work, the various contacts will need to be fitted and configured such that the correct data is transmitted from the lens to the camera. I do not believe such adapters are available.
04-10-2017, 05:04 AM   #3
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Thank you all for the replies.
04-10-2017, 05:06 AM   #4
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You're most welcome.

04-10-2017, 05:28 AM - 1 Like   #5
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QuoteOriginally posted by STEEWPHOTOGRAPHY Quote
Hey Guys,
I am looking for a lensadapter so i can put Canon or Nikon lenses on my Pentax.
FotodioX Pro Lens Mount Adapter for Canon FD Lens to FD-PK-G B&H

Limitations: Manual focus only, and additional optics that may or may not degrade the image, based on your standards.
I do not have this model of adapter, but do mount excellent Konica lenses on my K-1 with results that are
acceptable to me. YMMV.
04-10-2017, 05:39 AM   #6
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QuoteOriginally posted by dcshooter Quote
The desire for AF presumes he is looking for an EF mount adapter, not an FD.
True. Just presenting all possibilities.
04-10-2017, 09:35 PM   #7
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QuoteOriginally posted by dcshooter Quote
Doesn't exist.
Succinct and practical response.

QuoteOriginally posted by jlstrawman Quote
Just presenting all possibilities.
Not all possibilities are practical, and in certain cases can be far more trouble than they are worth.
04-10-2017, 11:29 PM - 2 Likes   #8
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QuoteOriginally posted by jlstrawman Quote
True. Just presenting all possibilities.
I for one appreciate the effort to give the OP a possible way to use his Canon lenses.

And I will prove my lack of sleep and coffee and remind that photography got along just fine without autofocus for 150 years. Prominent in many reviews are complaints that autofocus is slow, or noisy, or inaccurate, or was simply fooled by circumstance (yeah, I'm looking at you, Pentax). So in response, I'll propose Feb 30th to be Manual Focus Day, where photographers switch off autofocus, dial the shutter back from continuous to single, and actually look at the scene and twist both ways before gently pressing that button. Canon lenses can pull off this magic as well as any!

04-11-2017, 03:21 AM - 2 Likes   #9
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QuoteOriginally posted by FilmORbitz Quote
....I'll propose Feb 30th to be Manual Focus Day.......
I think we need it more often than that!
04-11-2017, 06:46 PM   #10
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QuoteOriginally posted by MarkJerling Quote
I think we need it more often than that!
Assuming it might be a traumatic 24 hours, I wanted to allow the idea sufficient time to percolate.

...there's that coffee thing again.
04-12-2017, 11:43 PM - 1 Like   #11
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QuoteOriginally posted by STEEWPHOTOGRAPHY Quote
Hey Guys,
I am looking for a lensadapter so i can put Canon or Nikon lenses on my Pentax.
The adapter should have the possibility that the autofocus work.

I hope you can help me.

regards STEEW
There is the multimount: Pentax K+ Multi-Mount - Influential Photo Gear | PentaxForums.com

It will not give you AF, but that's as good as it gets.

Seb
04-13-2017, 06:54 PM   #12
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QuoteOriginally posted by bassek Quote
There is the multimount: Pentax K+ Multi-Mount - Influential Photo Gear | PentaxForums.com

It will not give you AF, but that's as good as it gets.

Seb
And the commercial version exists here:

Products - Adaptist

I receive no remuneration for this shameless plug, unless I do. And I haven't used one either, so YMMV.
04-14-2017, 02:32 PM   #13
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Is there a 2x teleconverter that works great for Pentax? The converter should have AF. I saw a Pentax HD thingy for 300€ does that work with all lenses?

Hope you guys can help me...

Regards STEEW
04-15-2017, 03:46 AM   #14
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The F 1.7x has AF for MF lenses, here: SMC Pentax-F 1.7x AF Adapter Reviews - Pentax K-mount Teleconverters and Adapters - Pentax Lens Reviews & Lens Database
Some 3rd party 2x converters are available, usually with some toll on IQ. So you are better off cropping.

Seb
04-15-2017, 07:06 AM   #15
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QuoteOriginally posted by bassek Quote
The F 1.7x has AF for MF lenses, here: SMC Pentax-F 1.7x AF Adapter Reviews - Pentax K-mount Teleconverters and Adapters - Pentax Lens Reviews & Lens Database
Some 3rd party 2x converters are available, usually with some toll on IQ. So you are better off cropping.

Seb
thank you very much for the information.
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