Canon 50 f/1.5 - disassembly tips?

[spyder2000]

I have one I'd like to clean internally. Any tips on disassembling this lens?

[Letien]

I have a cleaning note for 1.8. The lens may be similar in mechanical construction. If you want it, give me your email, I will send it. It's too large for posting ( I just don't know how to shink the file).

[ferider]

It's pretty straight forward:

Start from the back, take the focus helical off (with a lens spanner).
Then you can take the rear element block out to get access to the aperture.

Roland.

[spyder2000]

Well it LOOKED that easy but nothing ever is. That's where the dust appears to be too. Thanks!