Description:   
Exactly designed with F mount (Including Auto version， K， AI， AIS mount version) lens to Sony NEX series cameras like Sony NEX 3 5 5N 5R 7 A7 A7R ， etc.   

Features:  
1.Manual focus and aperture adjustment;
2.Manual exposure and aperture priority exposure;
3.Infinite focus;

Specification:  
Material:  Copper， Metal， Durable   
Craftwork:  The mount design is exact and smooth enough， which can perfectly match the original lens  

Notice: One should set the camera to ‘shooting without lens’ mode first， then can be able to work with the lens mount adapter.