Emil Busch Bis-Telar design 1905: just a play
Emil Busch A.G. Rathenow: the Bis-Telar.
First corrected telephoto lens design.
Here the Busch-Bis-Telar Ser. II, 7/270
A: 7 ... 64 , old German scale A: 5 ... 384
Its a lens which has a own charme, however it isnt sharp!
Mystic: Tree Legs
And nice "extra soft" portrait ...
As I mentioned its not a sharp lens,
however a great step
in the development Made in Germany!
And gives some fun for DSLR users too!