Noah B
18-Feb-2014, 18:18
Hey gang, I'm about to embark on my next repair project to clean up my 90mm Angulon. I've searched around today but haven't found too much info. I need to open it up to clean and lube some of the internal parts (sticky speeds around 1&1/2 a second), but not sure the best method of doing so. I see 4 screws on the backside and on the front when the element is removed theres a metal part with a lock ring, but it looks like it needs a spanner wrench to open up. I've repaired lots of lenses and am comfortable with the work involved, but I want to have a good game plan for the cleaning. If anyone has links or photos of how to take this apart I'd greatly appreciate it. Thanks!