contax G lens on sony a7rii query

[jamaeolus]

Anybody have experience with this combination?

[sergun]

I've owned it for three months. I like to walk around town with this little telephoto lens (G90). My examples with A7RII.

[benadamx]

i scored the TechArt G1/G2 adapter at a thrift store for $5! but havent come upon any lenses to test with yet

[justtorchit]

I don't own the Sony you're asking about but I do use Contax G lenses on my Nikon Z6 and Z7 via Fotodiox's manual focus adapter. Not sure what you're curious about specifically but I absolutely love using these lenses on digital. Even despite all of the issues discussed at length here https://phillipreeve.net/blog/rangefinder-wide-angle-lenses-on-a7-cameras-problems-and-solutions/, I find them entirely worth adapting and gorgeous little optics. I use and am most partial to the 45/2 and the 21/2.8.

[jamaeolus]

Well, I had heard that on some of the earlier A7 series cameras the short FL lenses were yielding smeared colors due to, IIRC, filter stack issues. I didn't want to invest hundreds in a techart adapter if that was still the case. I was hoping someone on here had experience with the combination.

[Lightshow]

[jamaeolus]

That is a very nice shot. The microcontrast is remarkable. Thanks. I might start seeking out some "bargains" for these lenses. Bargains being a relative term for glass like this.

[calvin83]

[itsfozzy]

[justtorchit]

I've had excellent success with the 45mm on the Nikon Z cameras. The 21mm however, definitely suffers in the corners (color shift, sharpness). I actually picked up the recommended optic, Opto Sigma SLB-50-1500PM (plano convex 1.5m), from the previously posted article, which is supposed to greatly improve the performance of the 21mm. But my adapter (the Fotodiox Contax G > Nikon Z) is too precise and contains no additional helicoid which is evidently needed once the SLB-50-1500PM is added to maintain infinity focus. I'm exploring means of modifying my adapter to allow for this. If you consider the lens itself was a good deal at $400. And I spent another $100 on the Opto Sigma lens. Plus $50-70 for the adapter...these things add up. But then there really is nothing quite like these G lenses. It's all been worth it to me, but not for any pragmatic reasons.

[Lightshow]

Sebboh at FM has most of the Contax G lineup converted for manual focus, he was using an A7 series camera, I'm not sure what he's shooting these days. A search for "sebboh Contax g" should bring up any relevant posts.
I think he added a PCX element in front of the 21mm lens which improved IQ, the 35/2 was more funky than usual, definitely interesting.

[Lsds]

I am using the CG 21, 28, 45 & 90 on the Z6 and this has replaced my Nikkor & LR lenses completely. The compact form and IQ has no rival - I carry 4 lenses and camera in the original CG bag.
The 21 & 28 shine with a reversed PCX 1500 and the BSI sensor on the Z prevents any cast or smearing anyway.
-Some samples :






I also had the infinity issue with PCX mounted on the 21 & 28 via FD adapter but solved it with shimming and a fotofox adapter(metabones works too).
Do PM or let me know if you want to see samples or need help with adapting.

[sergun]

100% crop on f4 (A7R2 + g90)

[Lsds]

The CG 45 & 90 lenses shine indeed on mirrorless without any correction needed

[Slalom]

There is a techart adapter I have, and the 45mm & 90mm are good. Then it gets more interesting 35, 28 and 21MM. I got them all Aug2015 to spring 2016.

[Blazer0ne]

...

[sergun]

DSC01836-4 by Сергей Пашнин, on Flickr

[sergun]

[sergun]

city1 by Сергей Пашнин, on Flickr

[sergun]

DSC02956-4 by Сергей Пашнин, on Flickr

[Baekmann]

Very nice results!

[sergun]

There was a thought to change it (G90) to sigma 90/2.8, but the price tag on sigma bites)
city-10 by Сергей Пашнин, on Flickr
city-11 by Сергей Пашнин, on Flickr