These extenders operates only with Industar 50 / 26 and 61 50mm lenses and cannot be applied on other lenses.
Hi Luiz,
Thanks for bringing this up. Also many thanks for compiling many of my threads about Chinese cameras into a 'book'. There are still many old Chinese photographic products waiting to be discovered. I hope someone could continue the research. I have been collecting vintage Chinese mechanical watches sine about 2006, and gave up camera collecting almost entirely.
I think this TK2-D converter could also be used on J-9, J-11? Focusing accuracy could be a problem on old rangefinder cameras, but mount them on a digital camera with a proper adapter should overcome the problem. I will try them on my Olympus EPL-2 one day.
Hello Zhang! Great to hear you. Normal lenses if no Tessar types (Industar) cannot couple to converter due their sizes and position of rear elements J9 and J11 have their last rear elements negative ones and beside increased aberration is a problem for precision focusing Regards!
I saw a post from you about an extremely rare Chinese cāmera based on the Contax S or D and lost its adress please send me this link
It is a pity you are no more collecting cāmeras. Your research is very important to all of us. LP
Thanks for the explanation. I posted an image of the Contax copy camera, and an image of an extremely rare Leica copy-Dalai at the old thread at Rangefinder forum.com.
TK 2D Telextender
Posted - Sep 08 2013 : 7:20:06 PM
There are still many old Chinese photographic products waiting to be discovered. I hope someone could continue the research. I have been collecting vintage Chinese mechanical watches sine about 2006, and gave up camera collecting almost entirely.
