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Forum: Pentax SLR Lens Discussion 11-02-2016, 04:27 AM  
Vivitar 28mm F2 aperture blades
Posted By citixman
Replies: 38
Views: 27,856
Hello~ I got a Kiron 28mm f/2.8 C/Y mount from ebay and found its aperture is a bit oily and the lens around the aperture had some oil spot !
I disassembled this lens until the last step to clean the aperture, because I can't open the final housing of it. Please refer to the photo attached. It is extremely tight for open even I inject some alcohol solvent intp the slits and holes by syringe.

Can anyone help ? Shared album - Anakin Skywalker - Google Photos
Shared album - Anakin Skywalker - Google Photos
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