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Kiev Contax Mount to Sony E mount?
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PostPosted: Fri Jan 09, 2015 7:55 am    Post subject: Kiev Contax Mount to Sony E mount? Reply with quote

Hi there,

I'm looking at a Jupiter12 35 f/2.8 and it comes with this mount:


I'm having a hard time finding info about the mount type and if there's any adapter for the A6000.
Any info?

Thanks!


PostPosted: Fri Jan 09, 2015 8:16 am    Post subject: Reply with quote

I'm thinking M39-L39 maybe?


PostPosted: Fri Jan 09, 2015 8:21 am    Post subject: Reply with quote

Contax/Kiev External/Outer baynoet.

This is the cheapest adapter. Not good but works.
Click here to see on Ebay

Or make one yourself
http://forum.mflenses.com/diy-adapter-for-contax-rf-inner-mount-t49091.html


PostPosted: Fri Jan 09, 2015 8:24 am    Post subject: Reply with quote

calvin83 wrote:
Contax/Kiev External/Outer baynoet.

This is the cheapest adapter. Not good but works.
Click here to see on Ebay

Or make one yourself
http://forum.mflenses.com/diy-adapter-for-contax-rf-inner-mount-t49091.html


Thank you calvin83.
Why that adapter is not good? Is it loose?


PostPosted: Fri Jan 09, 2015 8:26 am    Post subject: Reply with quote

Your lens' mount is indeed kiev/contax rf bayonet.
The original mount on kiev/contax rangefinder cameras had two ways of mounting lenses: normals used the "inner bayonet" which took advantage of a focusing mechanism incorporated in the camera body, while wides and teles have their own focusing system, and mount on the "outer bayonet" - your jupiter 12 is one of those.
Adapters for outer bayonet are quite cheap, while the ones that have both inner and outer bayonet are more expensive, as they are more complex and usually made with parts from broken kiev cameras - I bought an excellent one from Attila here, and a cheap and nasty outer bayonet from ebay that wobbles a bit, but does its job.
Now the bad news: your jupiter will probably hit the shutter of your a6000 - never tried that exact camera, but it is reported to happen with other nex models - as the rear element sits extremely close to the sensor, so I'd be very careful with it.


PostPosted: Fri Jan 09, 2015 8:48 am    Post subject: Reply with quote

cgustav wrote:
calvin83 wrote:
Contax/Kiev External/Outer baynoet.

This is the cheapest adapter. Not good but works.
Click here to see on Ebay

Or make one yourself
http://forum.mflenses.com/diy-adapter-for-contax-rf-inner-mount-t49091.html


Thank you calvin83.
Why that adapter is not good? Is it loose?

Yes. The adapter is loose on the lens side.

Aanything mentioned this lens will hit the shutter of your A6000 when you focus far. You might keep the lens and wait until you have an A7.


PostPosted: Fri Jan 09, 2015 9:06 pm    Post subject: Reply with quote

It wont fit your NEX. I have the same lens/camera combo and an adapter. The lens goes back further than the shutter.


PostPosted: Sat Jan 10, 2015 12:22 am    Post subject: Reply with quote

philslizzy wrote:
It wont fit your NEX. I have the same lens/camera combo and an adapter. The lens goes back further than the shutter.


This may be correct, be very careful as you can damage the camera.


PostPosted: Sat Jan 10, 2015 12:37 am    Post subject: Reply with quote

Phil is right, the lens is too deep.


PostPosted: Sat Jan 10, 2015 2:57 am    Post subject: Reply with quote

From what I understand, the rear lens will not touch the shutter as people have mounted and used it on the Sony A7 series with no problems, the issue seems to be the plastic shroud that surrounds the APS-C sensor, the lens element makes contact with it.


PostPosted: Sat Jan 10, 2015 3:14 am    Post subject: Reply with quote

Lightshow wrote:
From what I understand, the rear lens will not touch the shutter as people have mounted and used it on the Sony A7 series with no problems, the issue seems to be the plastic shroud that surrounds the APS-C sensor, the lens element makes contact with it.

You are right. I also forget the camera can be modded to fit the lens.
http://www.dchome.net/forum.php?mod=viewthread&tid=1228477


PostPosted: Sat Jan 10, 2015 6:51 pm    Post subject: Reply with quote

Thank you all for the information!
I'll wait for the FF then, the Jupiter seems good but on the A6000 I can always choose another 35mm lens.


PostPosted: Sun Jan 11, 2015 4:19 am    Post subject: Reply with quote

I was unaware that the camera could be modded. How simple is that? Anyone here tried it?



PostPosted: Sun Jan 11, 2015 4:24 am    Post subject: Reply with quote

philslizzy wrote:
I was unaware that the camera could be modded. How simple is that? Anyone here tried it?


It is not difficult if you are careful. The sensor will be more prone to flare after you remove part of the baffle.


PostPosted: Tue Jun 20, 2023 5:43 pm    Post subject: Reply with quote

Hi all! ( it has been a while.. )

hoping to get recommendation for a good but hopefully not very expensive adapter for my CZJ Sonnar f1.5/5cm to Sony E
thank you for any tip!

cheers, Andreas



PostPosted: Tue Jun 20, 2023 6:28 pm    Post subject: Reply with quote

kuuan wrote:
Hi all! ( it has been a while.. )

hoping to get recommendation for a good but hopefully not very expensive adapter for my CZJ Sonnar f1.5/5cm to Sony E
thank you for any tip!

cheers, Andreas

pic


Hi kuuan! Good to see you here again.

I bought one of these adapters withouy "gift lens" when they were $30. Works as advertised.



Click here to see on Ebay


PostPosted: Tue Jun 20, 2023 8:31 pm    Post subject: Reply with quote

Hi visualopsins,

thank you for the welcome. Goof to know you are still around.
Looks good, thank you! May try to get one, thank you1


had made myself an adapter once.. but can't find it




these days have been playing with the Sonnar in the garden.. "handheld"



enjoyed the tilt shift



PostPosted: Tue Jun 20, 2023 8:49 pm    Post subject: Reply with quote

The cheap adapters from Ukraine are probably fine for the small 50mm Contax RF lenses.

I wouldn't try using them with heavier external bayonet lenses like the 85mm Sonnar or the Jupiter-9 though. They're not tough enough to support that king of weight.