Can't get 50mm lens off Letus Nikon AI Mount!!

To retrieve the lens you have to unlock the lens mount and turn the lens counter clockwise, in other words, in the opposite way you did to mount the lens...

The lock is that little silver knob located on the left side of the interchangeable nikon mount. To unlock the lens just move this knob backwards.

If your Zeiss ZF's are loose on your Nikon Mount, read this link:

http://support.letusdirect.com/index.php?linkact=kb&i=51&c=C1

You can download the Ultimate User Manual here:

http://downloads.letusdirect.com/guides/letus35-ultimate.pdf

Hope this helps. Sorry for my English... Spanish is my native language.

Good Luck!
 
I had the same problem with my Nikon lenses at first. Follow the advice above, but also, make sure your lens is flush with the adaptor. You'll get used to it. Good luck.
 
If you have the original Nikon adapter from Letus, there is no silver button to move (I had the same problem, and bought the new adapter which now lets me change lenses). There was a small hole on the lens casing that I had to insert a tiny tool into, which released the lens.
 
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