In article <33181F70.1EC8@cyf-kr.edu.pl>, Aleksander Matczewski
wrote:

> I have an opprotunity to buy a Yashica Mat-124G for an interesting price.
> The deal is for me to have a really good optics. Is its lens (80mm)
> sharp, comparable to the professional standard lenses (Rollei, Mamiya etc.)??

I was not impressed with the Yashica Mat lens - the one on the Minolta Autocord was considerably better (with the Rollei twin, Mamiya 645
[NOT Mamiya twin!], etc. being somewhat better yet). The Minolta
Autocord is THE best-buy 120-format camera, IMO (though it is harder
to find).
Hope This Helps