Biogon 35/2.8 on contax iia

[paapoopa]

Hi

I heard some of these Biogon 3.5cm f:2.8 have large rear elements and does not fit on the contax iia and iiia.
how do i differentiate the ones that are able to fit on the contax iia/iiia and the ones that are not?

and

is it true that beside the biogon 3.5 f2.8, all the other contax lens has no problem mounting on the contax iia and iiia?

thanks
eddy

 

[Vickko]

This thread explains it

http://www.rangefinderforum.com/forums/archive/index.php/t-112454.html

 

[RObert Budding]

The post-war Biogon is a really nice lens, but it's a bit hard to come by.