Read which models are compatible before buying

This autofocuses and doubles the lens distance

200mm = 400mm with adapter

There is No marking.

There is No fungus 

There is No scratch

There is No haze

There is No balsam separation.

There is a few tiny tiny dusts.

The following Sony/Minolta lenses are compatible with Sony 1.4X and 2X teleconverters:

If it is not one of these lenses in Sony or Minolta, it probably wont work

Sony 135mm F2.8

Sony 70-200mm F2.8

Sony 70-200mm F2.8 ver II

Sony 300mm F2.8

Sony 300mm F2.8 ver II

Sony 500mm F4

Sony 70-400mm F4-5.6

Sony 70-400mm F4.-5.6 ver II

Minolta AF lenses:

AF85mm F1.4G

AF100mm F2.8 Macro

AF100mm F2.8 Softfocus

STF135mm F2.8 [T4.5]

AF 200mm F2.8G

AF 300mm F2.8G

AF 300mm F4G

AF 400mm F4.5G

AF 600mm F4G

AF 200mm F4G Macro