Nikon / Canon lens on Pentax KAF

STEEWPHOTOGRAPHY · 04-10-2017, 04:21 AM

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

MarkJerling · 04-10-2017, 04:35 AM - **1 Like**

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.

STEEWPHOTOGRAPHY · 04-10-2017, 05:04 AM

Thank you all for the replies.

MarkJerling · 04-10-2017, 05:06 AM

You're most welcome.

**jlstrawman** · 04-10-2017, 05:28 AM - **1 Like**

Originally posted by STEEWPHOTOGRAPHY

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.

**jlstrawman** · 04-10-2017, 05:39 AM

Originally posted by dcshooter

The desire for AF presumes he is looking for an EF mount adapter, not an FD.

True. Just presenting all possibilities.

**Digitalis** · 04-10-2017, 09:35 PM

Originally posted by dcshooter

Doesn't exist.

Succinct and practical response.

Originally posted by jlstrawman

Just presenting all possibilities.

Not all possibilities are practical, and in certain cases can be far more trouble than they are worth.

FilmORbitz · 04-10-2017, 11:29 PM - **2 Likes**

Originally posted by jlstrawman

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!

MarkJerling · 04-11-2017, 03:21 AM - **2 Likes**

Originally posted by FilmORbitz

....I'll propose Feb 30th to be Manual Focus Day.......

I think we need it more often than that!

FilmORbitz · 04-11-2017, 06:46 PM

Originally posted by MarkJerling

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.

bassek · 04-12-2017, 11:43 PM - **1 Like**

Originally posted by STEEWPHOTOGRAPHY

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

FilmORbitz · 04-13-2017, 06:54 PM

Originally posted by bassek

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.

STEEWPHOTOGRAPHY · 04-14-2017, 02:32 PM

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

bassek · 04-15-2017, 03:46 AM

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

STEEWPHOTOGRAPHY · 04-15-2017, 07:06 AM

Originally posted by bassek

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.

04-10-2017, 04:21 AM	#1
STEEWPHOTOGRAPHY Forum Member Join Date: Sep 2016 Location: Bad Doberan Posts: 61	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

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04-10-2017, 04:35 AM - 1 Like	#2
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,402	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
STEEWPHOTOGRAPHY Forum Member Join Date: Sep 2016 Location: Bad Doberan Posts: 61 Original Poster	Thank you all for the replies.

04-10-2017, 05:06 AM	#4
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,402	You're most welcome.

04-10-2017, 05:28 AM - 1 Like	#5
jlstrawman Site Supporter Join Date: Feb 2010 Location: Midwest US Photos: Gallery Posts: 1,058	Originally posted by STEEWPHOTOGRAPHY 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
jlstrawman Site Supporter Join Date: Feb 2010 Location: Midwest US Photos: Gallery Posts: 1,058	Originally posted by dcshooter 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
Digitalis Site Supporter Join Date: Mar 2009 Location: Melbourne, Victoria Photos: Gallery Posts: 11,694	Originally posted by dcshooter Doesn't exist. Succinct and practical response. Originally posted by jlstrawman 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
FilmORbitz Senior Member Join Date: Mar 2017 Location: Maryland Photos: Gallery Posts: 144	Originally posted by jlstrawman 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
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,402	Originally posted by FilmORbitz ....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
FilmORbitz Senior Member Join Date: Mar 2017 Location: Maryland Photos: Gallery Posts: 144	Originally posted by MarkJerling 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
bassek Pentaxian Join Date: Feb 2011 Photos: Gallery Posts: 706	Originally posted by STEEWPHOTOGRAPHY 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

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04-13-2017, 06:54 PM	#12
FilmORbitz Senior Member Join Date: Mar 2017 Location: Maryland Photos: Gallery Posts: 144	Originally posted by bassek 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
STEEWPHOTOGRAPHY Forum Member Join Date: Sep 2016 Location: Bad Doberan Posts: 61 Original Poster	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
bassek Pentaxian Join Date: Feb 2011 Photos: Gallery Posts: 706	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
STEEWPHOTOGRAPHY Forum Member Join Date: Sep 2016 Location: Bad Doberan Posts: 61 Original Poster	Originally posted by bassek 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.