Adapter compatibility for A7 mark2 (some works on A7 but not on A7m2)

 

Capture.JPG

 

After some struggling, I conclude the dimension which indicated ‘a’ and ‘b’ above is slightly different and made the problem.

 

‘a’ is the distance from lens flange to bayonet blade of ULATA adapter.

‘b’ is the distance of same from original Sony 28-70 lens.

 

I could not measure precisely due to lack of tools but it looks a < b with eye. It is small difference, but the fact is A7, A7R, A7s have plastic ring

in between lens mount and body. So even with slightly incorrect adapter, applying a little more force will turn the adapter to fit.

 

At A7m2, the plastics ring replaced with metal. So lens mount rigidity increased but no flexibility as all as before.

If adapter dimension is slightly smaller than spec, it won’t turn.

 

 

 

 

 

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05, Aug

 

I received long waiting FD adapter for Canon FD 85mm f1.2 Aspherical lens.

But OMG….it won’t fit to camera

 

This is nice looking ULATA adapter from China….

 

800px_DSC02337.jpg

 

 

Attached to the lens.

Disappointingly it refuse to connect to Camera body

 

800px_DSC02339.jpg

 

 

 

This is grand parent of famed ‘Mantou’ lens, Canon EF 85mm f1.2 L.

It started as FD mount 85mm f1.2 Aspherical as shown below.

 

800px_DSC02340.jpg

 

 

I shot this with 85mm lens handheld without fixing to the body. Wow….such a shallow DOF

 

800px_DSC02341.jpg

 

 

 

This is a DOF from Mitakon

 

800px_DSC02343.jpg

 

 

 

 

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