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Conversion of G lenses to M mount

wang

Well-Known Member
I sold my G system a few months ago to go for the M system. Now I have a good set of Leica M lenses and Zeiss M lenses. Today I look at the images from Zeiss M50 2 and Summicron 50 2, I really miss the images from my G45mm f2.

The images from my Leica has a classic Leica look, it has the best dimensional feel. The images from Zeiss M 50 2 has the best colour and bokeh. The images from G45 2 is the sharpest.

I remember seeing in this forum once concerning this conversion, but I can't find it again. Can anybody help me where I can do the conversion ?
 

jnswickard

Active Member
I have an extra 16mm Zeiss Hologon (Contax G) and would like to convert it to Leica M.
Thanks,
Jack Swickard
 

jnswickard

Active Member
I spoke with Ken Ruth, Photography on Bald Mountain, Davenport, California, re converting the Contax Hologon to Leica M and he has done several of them. About a US $600 job.
Sooo--I am sending off one of the Hologons.
Jack Swickard
 

jnswickard

Active Member
Joseph,
I think the source for adapting other Contax G lenses including providing a manual focus mount is <
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>
in Japanese but I think it is the place.
Jack
 

wang

Well-Known Member
Thank you, Jack.

I am on the way for arranging this to convert the G45 2 by Mr. Miyazaki. From his web site he claimed he is able to convert it to manual focus with rangefinder coupling.

As an ex-user of the G system, I find G45 provides more resolution than both Leica Summicron 50 f2 and Zeiss M mount 50 f2 and I have both, this is the reason why I pay for the shipping, conversion and a translator. Mr Miyasaki only communicates with Japanese.

For G16, as it does not require rangefinder coupling, many places in the world provides services for conversion. I know someone in Hong Kong who will do the job for about USD200.
 

jnswickard

Active Member
Joseph,
As I have now acquired an extra G45 2 I am curious as to what you have found out Mr. Miyasaki? I would like to have this conversion done as well.
Thank you,
Jack Swickard
 

wang

Well-Known Member
Well, he sticks very much to his principles, it might be a good thing.

He only speaks Japanese. In order to send him my lens for conversion, I have to send someone to Japan to work for this. He only accepts parcels local from Japan and not anywhere else. He only accepts money transfer from Japan and not anywhere else. I believe I am his only non-Japanese customer.

With this kind of character, I expect my lens to be done well. I will get it in one week.
 

wang

Well-Known Member
Here comes my new toy.

 

jsmisc

Well-Known Member
Congratulations Joseph. It has been transformed. Even the apertures have been turned around the other way. It looks beautiful. It looks as though it has been made collapsible but presumably it isn't?
And what a benefit to have a depth of field scale, sorely missed on the original.
I just wondered what the figures above the dof scale are.
John
 

jnswickard

Active Member
Joseph,
That is stunning!! The G45 is the exact lens I wanted to have converted by Mr. Miyazaki. I am in the US--any thoughts of how I can get this done?
Jack Swickard
 

wang

Well-Known Member
John, the dof scale is in meters. It looks like a collapsible but it isn't. Surely, it should win a certificate of authenticity.

When I looked into his site, these converted lenses are in chrome. I had my mind in chrome when I made the order, but it gave a surprise when it comes as black.

Jack, if you want to get it done, I could ask my friend to get it done for you, she will need a payment for the job.

Now, I could use my G45 in a quiet way. It can focus more accurately at f2 when compared to its G2 counterpart. I find this lens being sharper than Summicron and Zeiss Ikon.

 

jsmisc

Well-Known Member
Joseph,
Thanks. I should have sussed the dof scale being in meters.
It looks lovely in black - to my mind much better than in chrome- and lovely on your Leica.
It looks as though he has taken the glass and fitted it into an entirely new housing but kept the outer ring with the CZ details.
I imagine that it was still cheaper than buying an equivalent new Leitz lens.
John
 

jnswickard

Active Member
Joseph, I would like to have this job done on my G45. Please send me the details at <jnswickard@aol.com> and I will be happy to do whatever is necessary. Please give me some idea of final cost.
Thanks,
Jack
 

wang

Well-Known Member
I paid for the cost of a new G45 2, the cost of conversion, the cost of mailing making phone calls and the fee for my friend in doing the job. The net price is the same as the cost of a new Leica Summicron M50 2.

Jack, I have a chance to talk to my friend today and see if she could do this again for you.
 

wang

Well-Known Member
Hi Jack,

Sorry for the late reply. I have the chance to talk to my Japanese friend today.

Last time she was able to do it for me because she went to Japan and sort it out in Japan for me. However, she is not planning to go to Japan in the near future so it would be difficult for her to sort this out for you.

As I have mentioned in my posting no.210, Mr Miyasaki only accepts parcels from Japan and Money order from Japan. It would be difficult to do this if you don't have someone in Japan to do this for you.
 

wang

Well-Known Member
I rececived an email asking me the conversion of 21 Biogon, 45 Planar, 35-70 to M mount.

The answer is the conversion is possible for the primes, but I have not seen it being done for the zoom.

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They could be converted by this man Mr Miyasaki in Japan. The result is good. I had the chance to use my G45 on my M3. The focusing is more accurate at f2 and I was able to use it in M which is more quiet.

The conversion costs a lot, more expensive than buying a new Leica M50 2 and you have to find yourself a translator.
 
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