how to CLA 50 1.2?

[Dario Grzelj]

my 50 1.2 is in very bad condition and I would like to cla it by my self. some 5 years ago i repaired a nonmoving aperture blades with selfmade metal parts made from metal can :angel: but now I can't remember how I dismantled it :bang:

 

[airds]

See the current 'Stuck Diaphragm on Canon 50mm F:1.2' thread and others available by searching this forum

 

[John Shriver]

Hint: make a scribe mark where each lens group screws into the aperture unit. Then, when you screw it back in, you know exactly how tight to screw it in!

This lens has a reputation for hazing problems, unlike most of the Canon lenses.