Nikon z mount to pentax

Justin.APR · 08-30-2018, 07:31 PM

How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless.

reh321 · 08-30-2018, 07:33 PM

Originally posted by Justin.APR

How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless.

You want a converter that will allow you to use K-mount lenses on Z-mount cameras?

chima chinda · 08-30-2018, 07:34 PM

Originally posted by Justin.APR

How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless.

Not sure but Nikon has equally good glass I think.

stevebrot · 08-30-2018, 07:49 PM

Originally posted by Justin.APR

Would be great to use my Pentax glass on the Nikon Mirrorless.

I depends how the Z bodies interact with the lens. I would expect compatibility to Pentax K would be similar to that of non-AI F-mount. If I remember correctly, Z bodies don't work with non-AI lenses. This bodes poorly for broad compatibility such as is found on Sony and M43.

Steve

**twilhelm** · 08-30-2018, 07:52 PM

With the range of Nikon lenses available, and ability to use with the Nikon adapter, I don't think we'll see one like we did with the Sony counterpart. But I could be wrong.

**UncleVanya** · 08-30-2018, 08:42 PM

Originally posted by stevebrot

I depends how the Z bodies interact with the lens. I would expect compatibility to Pentax K would be similar to that of non-AI F-mount. If I remember correctly, Z bodies don't work with non-AI lenses. This bodes poorly for broad compatibility such as is found on Sony and M43.

It works with non-AI but not in AF mode. Also the details suggest that it stops down and meters right before shooting (at least in some modes) which they call out as helping deal with sticky aperture (which I guess it will if by deal with they mean expose right rather than give your lens a CLA and get rid of the problem).

They also speculate in places that we will see adapters for other camera lenses that this is part of the reason for the super short flange focal distance.

EDIT: Does anyone know what the "electronic rangefinder" does?

stevebrot · 08-30-2018, 09:50 PM

Originally posted by UncleVanya

It works with non-AI but not in AF mode.

I guess it depends on which review one reads

I read that manual focus F-mount lenses are supported, but AI only. How the support is managed is a question of some interest since the Mount Adapter FTZ has no mechanical aperture actuator linkage. There is a compatibility matrix in the Nikkor-Z brochure (pp 34-36):

Nikkor-Z Brochure | PDF

From the brochure, it is explicit that aperture rings for non-chipped lenses (AI, AI-converted, and Nikkor E only) must be set to minimum aperture, modes are limited to Av and M and that metering is supported. Electronic rangefinder (focus confirm) is not supported. Due to lack of a mechanical aperture linkage, aperture operation would be full manual, I would expect.

Note: I am assuming that currently available images of the Mount Adapter FTZ are lacking critical details of the actual adapter.

I would also expect that a K-mount adapter might need to spoof an FTZ adapter with AI lens attached.

Steve

Last edited by stevebrot; 08-30-2018 at 10:06 PM. Reason: Completeness

Fogel70 · 08-30-2018, 09:53 PM - **1 Like**

If it is possible to use a simple mechanical adapter without any form of communication between camera and lens on Nikon Z, then it will not take long before adapters for K-mount are available from Chinese manufacturers.

But it depends on what Nikon thinks of using adapted lenses on Z. They could just as well made it impossible to capture a shot unless the adapter comunicates with the camera.

Then it may take long time before adapters are available (if ever).

stevebrot · 08-30-2018, 09:54 PM

Originally posted by UncleVanya

EDIT: Does anyone know what the "electronic rangefinder" does?

Electronic rangefinder is Nikonese for what Pentax calls "Focus Confirm".

Steve

stevebrot · 08-30-2018, 10:22 PM

Originally posted by stevebrot

Mount Adapter FTZ has no mechanical aperture actuator linkage

I say this based on the brochure specification which strongly infers full-manual aperture. I am assuming that DPR got this one wrong since they were unable to test the adapter with any manual focus, non-chipped lenses and I strongly suspect that they did not actually see the adapter mount face.

Steve

DeadJohn · 08-30-2018, 11:57 PM

Due to the small number of Pentax users compared to Nikon, I don't think an adapter will be a priority for Nikon. A company like Fotodiox, etc. might introduce an all-manual adapter, without AF and without good aperture control.

**Rondec** · 08-31-2018, 02:40 AM

I think for lenses with aperture rings, a third party will come out with something within a year. Aperture control on K mount lenses with an aperture ring will be more dicey and take longer.

reh321 · 08-31-2018, 06:27 AM

Originally posted by DeadJohn

Due to the small number of Pentax users compared to Nikon, I don't think an adapter will be a priority for Nikon. A company like Fotodiox, etc. might introduce an all-manual adapter, without AF and without good aperture control.

The issue isn't users - the issue is legacy lenses out there. Many Nikon users might want to use Super Takumar and similar legacy lenses.

DeadJohn · 08-31-2018, 07:00 AM

Originally posted by reh321

The issue isn't users - the issue is legacy lenses out there. Many Nikon users might want to use Super Takumar and similar legacy lenses.

Nikon likely doesn't care about making other lenses usable. Not a knock on Nikon - no camera manufacturer wants us to use their competitors' lenses.

Z users will need to wait for a 3rd party adapter.

Does anyone make an adapter that allows control of autofocus and aperture of k-mount from a Sony A7 body? I think it's only manual focus and limited aperture control. That's a sign of what to expect for Nikon Z.

reh321 · 08-31-2018, 08:14 AM

Originally posted by DeadJohn

Nikon likely doesn't care about making other lenses usable. Not a knock on Nikon - no camera manufacturer wants us to use their competitors' lenses.

Z users will need to wait for a 3rd party adapter.

Does anyone make an adapter that allows control of autofocus and aperture of k-mount from a Sony A7 body? I think it's only manual focus and limited aperture control. That's a sign of what to expect for Nikon Z.

And for the "Pentax" lenses Nikon users treasure that won't matter, because they're all manual anyway. For more recent history, Nikon users have plenty of "storied" lenses of their own.

08-30-2018, 07:31 PM	#1
Justin.APR Junior Member Join Date: Feb 2017 Posts: 41	Nikon z mount to pentax How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless.

08-30-2018, 09:50 PM	#7
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by UncleVanya It works with non-AI but not in AF mode. I guess it depends on which review one reads I read that manual focus F-mount lenses are supported, but AI only. How the support is managed is a question of some interest since the Mount Adapter FTZ has no mechanical aperture actuator linkage. There is a compatibility matrix in the Nikkor-Z brochure (pp 34-36): Nikkor-Z Brochure \| PDF From the brochure, it is explicit that aperture rings for non-chipped lenses (AI, AI-converted, and Nikkor E only) must be set to minimum aperture, modes are limited to Av and M and that metering is supported. Electronic rangefinder (focus confirm) is not supported. Due to lack of a mechanical aperture linkage, aperture operation would be full manual, I would expect. Note: I am assuming that currently available images of the Mount Adapter FTZ are lacking critical details of the actual adapter. I would also expect that a K-mount adapter might need to spoof an FTZ adapter with AI lens attached. Steve Last edited by stevebrot; 08-30-2018 at 10:06 PM. Reason: Completeness

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08-30-2018, 07:33 PM	#2
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,180	Originally posted by Justin.APR How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless. You want a converter that will allow you to use K-mount lenses on Z-mount cameras?

08-30-2018, 07:34 PM	#3
chima chinda Forum Member Join Date: Oct 2016 Location: Lagos Photos: Albums Posts: 60	Originally posted by Justin.APR How long do you think it will take for someone to make a z-mount to k-mount like the Sony Mirrorless. I'm pretty interested in the Nikon but not in jumping away from Pentax. Would be great to use my Pentax glass on the Nikon Mirrorless. Not sure but Nikon has equally good glass I think.

08-30-2018, 07:49 PM	#4
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Justin.APR Would be great to use my Pentax glass on the Nikon Mirrorless. I depends how the Z bodies interact with the lens. I would expect compatibility to Pentax K would be similar to that of non-AI F-mount. If I remember correctly, Z bodies don't work with non-AI lenses. This bodes poorly for broad compatibility such as is found on Sony and M43. Steve

08-30-2018, 07:52 PM	#5
twilhelm Loyal Site Supporter Join Date: Feb 2009 Location: Florida Photos: Gallery \| Albums Posts: 2,369	With the range of Nikon lenses available, and ability to use with the Nikon adapter, I don't think we'll see one like we did with the Sony counterpart. But I could be wrong.

08-30-2018, 08:42 PM	#6
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,403	Originally posted by stevebrot I depends how the Z bodies interact with the lens. I would expect compatibility to Pentax K would be similar to that of non-AI F-mount. If I remember correctly, Z bodies don't work with non-AI lenses. This bodes poorly for broad compatibility such as is found on Sony and M43. It works with non-AI but not in AF mode. Also the details suggest that it stops down and meters right before shooting (at least in some modes) which they call out as helping deal with sticky aperture (which I guess it will if by deal with they mean expose right rather than give your lens a CLA and get rid of the problem). They also speculate in places that we will see adapters for other camera lenses that this is part of the reason for the super short flange focal distance. EDIT: Does anyone know what the "electronic rangefinder" does?

08-30-2018, 09:53 PM - 1 Like	#8
Fogel70 Pentaxian Join Date: Sep 2009 Location: Stockholm, Sweden Photos: Albums Posts: 3,062	If it is possible to use a simple mechanical adapter without any form of communication between camera and lens on Nikon Z, then it will not take long before adapters for K-mount are available from Chinese manufacturers. But it depends on what Nikon thinks of using adapted lenses on Z. They could just as well made it impossible to capture a shot unless the adapter comunicates with the camera. Then it may take long time before adapters are available (if ever).

08-30-2018, 09:54 PM	#9
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by UncleVanya EDIT: Does anyone know what the "electronic rangefinder" does? Electronic rangefinder is Nikonese for what Pentax calls "Focus Confirm". Steve

08-30-2018, 10:22 PM	#10
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by stevebrot Mount Adapter FTZ has no mechanical aperture actuator linkage I say this based on the brochure specification which strongly infers full-manual aperture. I am assuming that DPR got this one wrong since they were unable to test the adapter with any manual focus, non-chipped lenses and I strongly suspect that they did not actually see the adapter mount face. Steve

08-30-2018, 11:57 PM	#11
DeadJohn Pentaxian Join Date: Jan 2011 Location: New York Posts: 4,834	Due to the small number of Pentax users compared to Nikon, I don't think an adapter will be a priority for Nikon. A company like Fotodiox, etc. might introduce an all-manual adapter, without AF and without good aperture control.

08-31-2018, 02:40 AM	#12
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,653	I think for lenses with aperture rings, a third party will come out with something within a year. Aperture control on K mount lenses with an aperture ring will be more dicey and take longer.

08-31-2018, 06:27 AM	#13
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,180	Originally posted by DeadJohn Due to the small number of Pentax users compared to Nikon, I don't think an adapter will be a priority for Nikon. A company like Fotodiox, etc. might introduce an all-manual adapter, without AF and without good aperture control. The issue isn't users - the issue is legacy lenses out there. Many Nikon users might want to use Super Takumar and similar legacy lenses.

08-31-2018, 07:00 AM	#14
DeadJohn Pentaxian Join Date: Jan 2011 Location: New York Posts: 4,834	Originally posted by reh321 The issue isn't users - the issue is legacy lenses out there. Many Nikon users might want to use Super Takumar and similar legacy lenses. Nikon likely doesn't care about making other lenses usable. Not a knock on Nikon - no camera manufacturer wants us to use their competitors' lenses. Z users will need to wait for a 3rd party adapter. Does anyone make an adapter that allows control of autofocus and aperture of k-mount from a Sony A7 body? I think it's only manual focus and limited aperture control. That's a sign of what to expect for Nikon Z.

08-31-2018, 08:14 AM	#15
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,180	Originally posted by DeadJohn Nikon likely doesn't care about making other lenses usable. Not a knock on Nikon - no camera manufacturer wants us to use their competitors' lenses. Z users will need to wait for a 3rd party adapter. Does anyone make an adapter that allows control of autofocus and aperture of k-mount from a Sony A7 body? I think it's only manual focus and limited aperture control. That's a sign of what to expect for Nikon Z. And for the "Pentax" lenses Nikon users treasure that won't matter, because they're all manual anyway. For more recent history, Nikon users have plenty of "storied" lenses of their own.