Diagnosing EOS 3000N mirror/shutter problem

Started 2 months ago | Discussions thread
KCK14 Contributing Member • Posts: 911
Re: Diagnosing EOS 3000N mirror/shutter problem

Look at the shutter blades from the rear. Look for an arc of black sticky goo.  If so it is a rubber damper that has turned to a tar like consistency.   Common failure in many film Canons.   Requires shutter disassembly to repair.

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