I asked 'Mr. Leitax' when a Zeiss-NF.2-to-K-mount adapter might be coming.

Scintilla · 06-20-2016, 05:17 AM

Originally posted by NZ_Ross

This will work the same as the Leitax mount I have on my Leica R 90mm f2.8 i.e. it will be the same as a 'K' or 'M' lens on a Pentax body - fully manual operation and green button metering.

Don't you mean same as an M42 lens? The green button wouldn't be able to stop down the lens unless the Nikon aperture actuator lever ended up in exactly the same spot as a Pentax aperture lever. So as you turn the aperture ring, the effect should be immediately visible in the viewfinder.

**NZ_Ross** · 06-20-2016, 12:18 PM - **1 Like**

Originally posted by Scintilla

Don't you mean same as an M42 lens? The green button wouldn't be able to stop down the lens unless the Nikon aperture actuator lever ended up in exactly the same spot as a Pentax aperture lever. So as you turn the aperture ring, the effect should be immediately visible in the viewfinder.

Yes, and sort of - as I said the lens is fully manual. The camera recognises it as a 'K' or 'M' lens in the EXIF and when using my Leitax converted lens I use the green button to force a metering check - but you are correct it does not stop down, that I am aware of.

Fenwoodian · 06-23-2016, 02:33 PM

Just received my used Zeiss ZF 21mm f/2.8 .2 lens from Fed Ex. It's a beauty.

My Leitax adapter is on its' way to me. I expect to receive it next week. Meanwhile, I'll get to know my Zeiss 21mm lens on my Nikon D7100 camera.

I will take some photos of the conversion process next week and post them here.

Once I have some experience with this new lens on my K1, I'll also post some photos and will let you know what I think about it's ergonomics/handling/IQ.

ChatMechant · 06-23-2016, 04:05 PM

Originally posted by Fenwoodian

Just received my used Zeiss ZF 21mm f/2.8 .2 lens from Fed Ex. It's a beauty.

My Leitax adapter is on its' way to me. I expect to receive it next week. Meanwhile, I'll get to know my Zeiss 21mm lens on my Nikon D7100 camera.

I will take some photos of the conversion process next week and post them here.

Once I have some experience with this new lens on my K1, I'll also post some photos and will let you know what I think about it's ergonomics/handling/IQ.

Looking forward to that.

Fenwoodian · 06-23-2016, 04:09 PM

I just did some testing of the Zeiss 21mm on my Nikon D7100. This may be the sharpest lens that I own. I used to own the Sigma 18-35mm lens in the Nikon mount and thought that was as sharp as sharp gets - well I was wrong, the Zeiss 21mm is even sharper (and with much better colors too).

My only worry is that 21mm might be a bit of a challenge for me as it's considerable wider then I'm used to. Time will tell.

**NZ_Ross** · 06-23-2016, 09:38 PM

Originally posted by Fenwoodian

My only worry is that 21mm might be a bit of a challenge for me as it's considerable wider then I'm used to. Time will tell.

If you find it is too wide, and you are not comfortable with it let me know

I am really interested in the conversion and how it goes, as I am looking at the same route myself.

Ross

Fenwoodian · 06-25-2016, 09:39 AM

Originally posted by NZ_Ross

If you find it is too wide, and you are not comfortable with it let me know

I am really interested in the conversion and how it goes, as I am looking at the same route myself.

Ross

I'd be happy to keep you updated on this Ross.

The Leitax conversion process is quite simple. The only tricky part is shaving 2mm off a couple of places on the rear of the 21mm lens. To make sure that I get this part just right, I've purchased and have already received a special digital calipurs that measures in metric units.

klavrack · 06-25-2016, 10:55 AM

Originally posted by jeffreybehr

He wrote:
"I expect to post a web page for the new Leitax mount in 1-2 weeks.

Best regards; David
www.leitax.com"

That means that perhaps-all the Zeiss Z-series lenses available in Nikon ZF.2 mount will be convertible to K-mount. We'll have to wait to see what electronic information will be transmitted.

FWIW, I'm up to four ZKs--25/2.8, 28/2, 35/2, and 85/1.4, and I hope to get a 21, converted or not.

I inquired directly to Zeiss about whether they'll start offering Pentax mounts in light of cameras like the K-1. Here's the reply:

Dear Kevin,

Thanks for your inquiry.

Sure, the Pentax K1 is an interesting camera body.

Unfortunately, we had to discontiue our K-mount lenses in 2011 because the request was too low. So we do not plan to offer K-mount lenses again within the next future.
If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again.

For further details, please do not hesitate to contact us!

With best regards

Bertram Hönlinger
_________________

Bertram Hönlinger
Kundensupport / Customer Support
Camera Lens Division

Carl Zeiss AG
Carl-Zeiss-Straße 22
73447 Oberkochen, Germany

Telefon/Phone: +49 7364 20-6175
bertram.hoenlinger@zeiss.com
ZEISS Deutschland

irek83 · 10-28-2016, 01:48 AM

Hello, may I ask if anybody try converted Zeiss Distagon 18mm f3,5 ZF.2 ?
Kind regards,
Irek.

HopelessTogger · 10-28-2016, 09:43 AM

Originally posted by klavrack

I inquired directly to Zeiss about whether they'll start offering Pentax mounts in light of cameras like the K-1. Here's the reply:

Dear Kevin,

Thanks for your inquiry.

Sure, the Pentax K1 is an interesting camera body.

Unfortunately, we had to discontiue our K-mount lenses in 2011 because the request was too low. So we do not plan to offer K-mount lenses again within the next future.
If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again.

For further details, please do not hesitate to contact us!

With best regards

Bertram Hönlinger
_________________

Bertram Hönlinger
Kundensupport / Customer Support
Camera Lens Division

Carl Zeiss AG
Carl-Zeiss-Straße 22
73447 Oberkochen, Germany

Telefon/Phone: +49 7364 20-6175
bertram.hoenlinger@zeiss.com
ZEISS Deutschland

If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again.

WOW! So I'd say that's that for ZK.

Gedeon · 10-28-2016, 01:22 PM

comparable market share than canikon.... and for the day your dog will begin to fly and make gold dung in your garden
No hope... 😑 so, leitax seems to be the only solution

MJKoski · 10-29-2016, 02:54 AM - **1 Like**

That is kind of BS. As CaNikon Zeiss lenses are not sold like hot cakes either. They are rarely bought compared to brands' own lens selection and K-mount Zeiss could very well reach the same demand.

HopelessTogger · 10-29-2016, 05:24 AM

Originally posted by MJKoski

That is kind of BS. As CaNikon Zeiss lenses are not sold like hot cakes either. They are rarely bought compared to brands' own lens selection and K-mount Zeiss could very well reach the same demand.

Aye! Makes a lot of sense.

I wonder why Sigma and Tamron can't realise the same that there are holes in the Pentax lens catalogue they could easily fill?

Third parties are abandoning the K-mount based on historical demand, i.e., pre-K-1. It's a mistake in my opinion.

MJKoski · 10-29-2016, 07:35 AM - **1 Like**

Yes sir! My thoughts exactly.

JimBrennan · 11-22-2016, 07:31 PM

You guys know that these lenses come in the ZK mount for Pentax. They are just harder to find. I have three. 35, 50 makro, and 85mm.
Also, we have our own Zeiss lens club group going.

I save the surgery for my Lecia Lenses. :~)

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06-20-2016, 05:17 AM	#16
Scintilla Veteran Member Join Date: Oct 2013 Photos: Gallery \| Albums Posts: 347	Originally posted by NZ_Ross This will work the same as the Leitax mount I have on my Leica R 90mm f2.8 i.e. it will be the same as a 'K' or 'M' lens on a Pentax body - fully manual operation and green button metering. Don't you mean same as an M42 lens? The green button wouldn't be able to stop down the lens unless the Nikon aperture actuator lever ended up in exactly the same spot as a Pentax aperture lever. So as you turn the aperture ring, the effect should be immediately visible in the viewfinder.

06-20-2016, 12:18 PM - 1 Like	#17
NZ_Ross Kiwi Pentaxian Join Date: Mar 2012 Location: Timaru Photos: Gallery \| Albums Posts: 4,225	Originally posted by Scintilla Don't you mean same as an M42 lens? The green button wouldn't be able to stop down the lens unless the Nikon aperture actuator lever ended up in exactly the same spot as a Pentax aperture lever. So as you turn the aperture ring, the effect should be immediately visible in the viewfinder. Yes, and sort of - as I said the lens is fully manual. The camera recognises it as a 'K' or 'M' lens in the EXIF and when using my Leitax converted lens I use the green button to force a metering check - but you are correct it does not stop down, that I am aware of.

06-23-2016, 02:33 PM	#18
Fenwoodian Pentaxian Join Date: Apr 2015 Location: USA Photos: Gallery \| Albums Posts: 2,874	Just received my used Zeiss ZF 21mm f/2.8 .2 lens from Fed Ex. It's a beauty. My Leitax adapter is on its' way to me. I expect to receive it next week. Meanwhile, I'll get to know my Zeiss 21mm lens on my Nikon D7100 camera. I will take some photos of the conversion process next week and post them here. Once I have some experience with this new lens on my K1, I'll also post some photos and will let you know what I think about it's ergonomics/handling/IQ.

06-23-2016, 04:05 PM	#19
ChatMechant Pentaxian Join Date: Jun 2010 Location: Matsuyama Photos: Gallery Posts: 1,284	Originally posted by Fenwoodian Just received my used Zeiss ZF 21mm f/2.8 .2 lens from Fed Ex. It's a beauty. My Leitax adapter is on its' way to me. I expect to receive it next week. Meanwhile, I'll get to know my Zeiss 21mm lens on my Nikon D7100 camera. I will take some photos of the conversion process next week and post them here. Once I have some experience with this new lens on my K1, I'll also post some photos and will let you know what I think about it's ergonomics/handling/IQ. Looking forward to that.

06-23-2016, 04:09 PM	#20
Fenwoodian Pentaxian Join Date: Apr 2015 Location: USA Photos: Gallery \| Albums Posts: 2,874	I just did some testing of the Zeiss 21mm on my Nikon D7100. This may be the sharpest lens that I own. I used to own the Sigma 18-35mm lens in the Nikon mount and thought that was as sharp as sharp gets - well I was wrong, the Zeiss 21mm is even sharper (and with much better colors too). My only worry is that 21mm might be a bit of a challenge for me as it's considerable wider then I'm used to. Time will tell.

06-23-2016, 09:38 PM	#21
NZ_Ross Kiwi Pentaxian Join Date: Mar 2012 Location: Timaru Photos: Gallery \| Albums Posts: 4,225	Originally posted by Fenwoodian My only worry is that 21mm might be a bit of a challenge for me as it's considerable wider then I'm used to. Time will tell. If you find it is too wide, and you are not comfortable with it let me know I am really interested in the conversion and how it goes, as I am looking at the same route myself. Ross

06-25-2016, 09:39 AM	#22
Fenwoodian Pentaxian Join Date: Apr 2015 Location: USA Photos: Gallery \| Albums Posts: 2,874	Originally posted by NZ_Ross If you find it is too wide, and you are not comfortable with it let me know I am really interested in the conversion and how it goes, as I am looking at the same route myself. Ross I'd be happy to keep you updated on this Ross. The Leitax conversion process is quite simple. The only tricky part is shaving 2mm off a couple of places on the rear of the 21mm lens. To make sure that I get this part just right, I've purchased and have already received a special digital calipurs that measures in metric units.

06-25-2016, 10:55 AM	#23
klavrack New Member Join Date: May 2016 Photos: Albums Posts: 18	Originally posted by jeffreybehr He wrote: "I expect to post a web page for the new Leitax mount in 1-2 weeks. Best regards; David www.leitax.com" That means that perhaps-all the Zeiss Z-series lenses available in Nikon ZF.2 mount will be convertible to K-mount. We'll have to wait to see what electronic information will be transmitted. FWIW, I'm up to four ZKs--25/2.8, 28/2, 35/2, and 85/1.4, and I hope to get a 21, converted or not. I inquired directly to Zeiss about whether they'll start offering Pentax mounts in light of cameras like the K-1. Here's the reply: Dear Kevin, Thanks for your inquiry. Sure, the Pentax K1 is an interesting camera body. Unfortunately, we had to discontiue our K-mount lenses in 2011 because the request was too low. So we do not plan to offer K-mount lenses again within the next future. If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again. For further details, please do not hesitate to contact us! With best regards Bertram Hönlinger _________________ Bertram Hönlinger Kundensupport / Customer Support Camera Lens Division Carl Zeiss AG Carl-Zeiss-Straße 22 73447 Oberkochen, Germany Telefon/Phone: +49 7364 20-6175 bertram.hoenlinger@zeiss.com ZEISS Deutschland

10-28-2016, 01:48 AM	#24
irek83 Senior Member Join Date: Aug 2016 Location: Dublin Posts: 159	Hello, may I ask if anybody try converted Zeiss Distagon 18mm f3,5 ZF.2 ? Kind regards, Irek.

10-28-2016, 09:43 AM	#25
HopelessTogger Veteran Member Join Date: Jan 2016 Location: Roi-et, Thailand Posts: 773	Originally posted by klavrack I inquired directly to Zeiss about whether they'll start offering Pentax mounts in light of cameras like the K-1. Here's the reply: Dear Kevin, Thanks for your inquiry. Sure, the Pentax K1 is an interesting camera body. Unfortunately, we had to discontiue our K-mount lenses in 2011 because the request was too low. So we do not plan to offer K-mount lenses again within the next future. If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again. For further details, please do not hesitate to contact us! With best regards Bertram Hönlinger _________________ Bertram Hönlinger Kundensupport / Customer Support Camera Lens Division Carl Zeiss AG Carl-Zeiss-Straße 22 73447 Oberkochen, Germany Telefon/Phone: +49 7364 20-6175 bertram.hoenlinger@zeiss.com ZEISS Deutschland If the Pentax full frame bodies reach a comparable market share than Canon and Nikon full frame bodies, we will re-consider it again. WOW! So I'd say that's that for ZK.

10-28-2016, 01:22 PM	#26
Gedeon Senior Member Join Date: Sep 2016 Photos: Gallery \| Albums Posts: 246	comparable market share than canikon.... and for the day your dog will begin to fly and make gold dung in your garden No hope... 😑 so, leitax seems to be the only solution

10-29-2016, 02:54 AM - 1 Like	#27
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	That is kind of BS. As CaNikon Zeiss lenses are not sold like hot cakes either. They are rarely bought compared to brands' own lens selection and K-mount Zeiss could very well reach the same demand.

10-29-2016, 05:24 AM	#28
HopelessTogger Veteran Member Join Date: Jan 2016 Location: Roi-et, Thailand Posts: 773	Originally posted by MJKoski That is kind of BS. As CaNikon Zeiss lenses are not sold like hot cakes either. They are rarely bought compared to brands' own lens selection and K-mount Zeiss could very well reach the same demand. Aye! Makes a lot of sense. I wonder why Sigma and Tamron can't realise the same that there are holes in the Pentax lens catalogue they could easily fill? Third parties are abandoning the K-mount based on historical demand, i.e., pre-K-1. It's a mistake in my opinion.

10-29-2016, 07:35 AM - 1 Like	#29
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	Yes sir! My thoughts exactly.

11-22-2016, 07:31 PM	#30
JimBrennan Forum Member Join Date: Jul 2016 Posts: 53	You guys know that these lenses come in the ZK mount for Pentax. They are just harder to find. I have three. 35, 50 makro, and 85mm. Also, we have our own Zeiss lens club group going. I save the surgery for my Lecia Lenses. :~)