All its components are CNC machined from solid brass and chrome finish.
The 50mm Contax RF and Nikon S lenses do not have a helical and depend of the camera body helical for to focus. The adapter have it own helical with the same pitch of Contax and Nikon S bodies.
Wideangle lenses will mount, the Biogon 21/4.5 will mount if the rear rotating mask is removed by unscrewing two small screws in the sides
I will send using FedEx for free and should arrive in 3-4 business days.
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