I just purchased this lens on POTN, and it was not disclosed that it was not mechanically 100% functional.
After doing some self diagnostics on the problems, it appears the lens is not communicating the focal length to the camera. I tested this by taking 5 shots all at different lengths. The metadata, once brought in to the computer shows the focal length at 135mm always.
Problems this creates:
Aperture will not go below F5.6 (As it should go to f3.5)
Focusing while in the widest focal length is poor.
Cannot go from Close focus to far.
Is there an easy fix that i am unaware of? any tips would be greatly appreciated.