Query on Contax CY-mount Zeiss on Pentax FF

jwmster · 08-27-2016, 08:19 AM

Anyone using or know whether Contax CY-mount Zeiss lenses will work on the K-1?

RAART · 08-27-2016, 08:25 AM

with correct replacement bayonet, yes
Zeiss Contax lens for Pentax cameras

**interested_observer** · 08-27-2016, 11:09 AM

You want to make sure that you are acquiring the MM version of the C/Y mount. That is the one with the f22 aperture printed in green.

jwmster · 08-27-2016, 11:19 AM

Yeah... been doin' that. These are VERY nice. I've seen the Leitax adapter mounts, but on my APS-C I've used Metabones. Would probably look for something on that line first.

stevebrot · 08-27-2016, 01:01 PM

Originally posted by jwmster

I've seen the Leitax adapter mounts, but on my APS-C I've used Metabones. Would probably look for something on that line first.

Good luck...Metabones does not support Pentax-K. The reason why the comments above mentioned Leitax is that it is reasonable way to mount C/Y to Pentax-K while retaining full optical quality and infinity focus with the longer lens registration distance. AFAIK there are no adapters that allow both.

Steve

Scintilla · 08-27-2016, 03:37 PM

At this point I must mention the Adaptist PK+MM Multi-Mount, which I used to replace the stock K-mount on my K-30 and only looked back once (when I spent a summer week in Florida and couldn't afford to take chances with the weather sealing). There has been no official word yet on whether it is compatible with the K-1.

One advantage of the Multi-Mount over the Leitax method is that it works for all Contax/Yashica lenses, not just the narrow-mount MM ones. Also, the same mount lets you use Olympus OM and Nikon F lenses too. The only problems are the reduced weather sealing and the need to clip 3 mm off of the aperture actuation lever and guard if you want to shoot at anything other than wide open (though Adaptist claims this will not affect the lens's operation with a C/Y camera).

And I'm not just saying this because I couldn't get the last base screw off of my Planar 50/1.7 to replace the mount. Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it.

blan01 · 08-27-2016, 05:15 PM

Originally posted by Scintilla

At this point I must mention the Adaptist PK+MM Multi-Mount, which I used to replace the stock K-mount on my K-30 and only looked back once (when I spent a summer week in Florida and couldn't afford to take chances with the weather sealing). There has been no official word yet on whether it is compatible with the K-1.

One advantage of the Multi-Mount over the Leitax method is that it works for all Contax/Yashica lenses, not just the narrow-mount MM ones. Also, the same mount lets you use Olympus OM and Nikon F lenses too. The only problems are the reduced weather sealing and the need to clip 3 mm off of the aperture actuation lever and guard if you want to shoot at anything other than wide open (though Adaptist claims this will not affect the lens's operation with a C/Y camera).

And I'm not just saying this because I couldn't get the last base screw off of my Planar 50/1.7 to replace the mount. Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it.

Wow, if this thing is compatible with K-1,it can actually open up a whole world for me

stevebrot · 08-27-2016, 06:42 PM

Originally posted by blan01

Wow, if this thing is compatible with K-1,it can actually open up a whole world for me

I would wait on the purchase until after your K-1 warranty expires. Also note that their product has not been tested with the K-1 for matters like mirror clearance.

Steve

stevebrot · 08-27-2016, 06:44 PM - **1 Like**

Originally posted by Scintilla

Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it.

Indeed...Phillips are not the proper cross-point drivers to use on a Japanese camera/lens. For a good selection of JIS:

Micro-Tools - Micro-Tools

Steve

**interested_observer** · 08-27-2016, 11:17 PM

Originally posted by stevebrot

Indeed...Phillips are not the proper cross-point drivers to use on a Japanese camera/lens. For a good selection of JIS:

Micro-Tools - Micro-Tools

Steve

Yes - JIS works much better. Also, during assembly at least one of the screws were glued in. I'v read that by touching the head of the screws with something like a soldering iron for an instant to break the bond, works well.

asamimasa · 08-30-2016, 12:45 PM

Originally posted by blan01

Wow, if this thing is compatible with K-1,it can actually open up a whole world for me

I believe these are held in place simply through tension, without a true lock for the lens. This was the largest turn-off for me.

08-27-2016, 08:19 AM	#1
jwmster Junior Member Join Date: Dec 2012 Posts: 41	Query on Contax CY-mount Zeiss on Pentax FF Anyone using or know whether Contax CY-mount Zeiss lenses will work on the K-1?

08-27-2016, 06:42 PM	#8
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by blan01 Wow, if this thing is compatible with K-1,it can actually open up a whole world for me I would wait on the purchase until after your K-1 warranty expires. Also note that their product has not been tested with the K-1 for matters like mirror clearance. Steve Last edited by stevebrot; 08-27-2016 at 06:57 PM.

08-27-2016, 06:44 PM - 1 Like	#9
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Scintilla Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it. Indeed...Phillips are not the proper cross-point drivers to use on a Japanese camera/lens. For a good selection of JIS: Micro-Tools - Micro-Tools Steve Last edited by stevebrot; 08-27-2016 at 06:57 PM.

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08-27-2016, 08:25 AM	#2
RAART Veteran Member Join Date: Apr 2013 Location: Oakville, ON Photos: Gallery Posts: 1,095	with correct replacement bayonet, yes Zeiss Contax lens for Pentax cameras

08-27-2016, 11:09 AM	#3
interested_observer Loyal Site Supporter Join Date: Jun 2009 Location: Tumbleweed, Arizona Photos: Gallery \| Albums Posts: 5,707	You want to make sure that you are acquiring the MM version of the C/Y mount. That is the one with the f22 aperture printed in green.

08-27-2016, 11:19 AM	#4
jwmster Junior Member Join Date: Dec 2012 Posts: 41 Original Poster	Yeah... been doin' that. These are VERY nice. I've seen the Leitax adapter mounts, but on my APS-C I've used Metabones. Would probably look for something on that line first.

08-27-2016, 01:01 PM	#5
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by jwmster I've seen the Leitax adapter mounts, but on my APS-C I've used Metabones. Would probably look for something on that line first. Good luck...Metabones does not support Pentax-K. The reason why the comments above mentioned Leitax is that it is reasonable way to mount C/Y to Pentax-K while retaining full optical quality and infinity focus with the longer lens registration distance. AFAIK there are no adapters that allow both. Steve

08-27-2016, 03:37 PM	#6
Scintilla Veteran Member Join Date: Oct 2013 Photos: Gallery \| Albums Posts: 347	At this point I must mention the Adaptist PK+MM Multi-Mount, which I used to replace the stock K-mount on my K-30 and only looked back once (when I spent a summer week in Florida and couldn't afford to take chances with the weather sealing). There has been no official word yet on whether it is compatible with the K-1. One advantage of the Multi-Mount over the Leitax method is that it works for all Contax/Yashica lenses, not just the narrow-mount MM ones. Also, the same mount lets you use Olympus OM and Nikon F lenses too. The only problems are the reduced weather sealing and the need to clip 3 mm off of the aperture actuation lever and guard if you want to shoot at anything other than wide open (though Adaptist claims this will not affect the lens's operation with a C/Y camera). And I'm not just saying this because I couldn't get the last base screw off of my Planar 50/1.7 to replace the mount. Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it.

08-27-2016, 05:15 PM	#7
blan01 Senior Member Join Date: Apr 2015 Location: Boston,MA Posts: 258	Originally posted by Scintilla At this point I must mention the Adaptist PK+MM Multi-Mount, which I used to replace the stock K-mount on my K-30 and only looked back once (when I spent a summer week in Florida and couldn't afford to take chances with the weather sealing). There has been no official word yet on whether it is compatible with the K-1. One advantage of the Multi-Mount over the Leitax method is that it works for all Contax/Yashica lenses, not just the narrow-mount MM ones. Also, the same mount lets you use Olympus OM and Nikon F lenses too. The only problems are the reduced weather sealing and the need to clip 3 mm off of the aperture actuation lever and guard if you want to shoot at anything other than wide open (though Adaptist claims this will not affect the lens's operation with a C/Y camera). And I'm not just saying this because I couldn't get the last base screw off of my Planar 50/1.7 to replace the mount. Speaking of which, anyone know where I can get a tiny JIS screwdriver? Phillips apparently won't cut it. Wow, if this thing is compatible with K-1,it can actually open up a whole world for me

08-27-2016, 11:17 PM	#10
interested_observer Loyal Site Supporter Join Date: Jun 2009 Location: Tumbleweed, Arizona Photos: Gallery \| Albums Posts: 5,707	Originally posted by stevebrot Indeed...Phillips are not the proper cross-point drivers to use on a Japanese camera/lens. For a good selection of JIS: Micro-Tools - Micro-Tools Steve Yes - JIS works much better. Also, during assembly at least one of the screws were glued in. I'v read that by touching the head of the screws with something like a soldering iron for an instant to break the bond, works well.

08-30-2016, 12:45 PM	#11
asamimasa Junior Member Join Date: Jun 2016 Posts: 34	Originally posted by blan01 Wow, if this thing is compatible with K-1,it can actually open up a whole world for me I believe these are held in place simply through tension, without a true lock for the lens. This was the largest turn-off for me.

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