Be sure to check the foam light seals in the back, also.
I have one of these, too. I have used it and similar compact RFs for travel and living abroad, for which they were perfect. The Canonet is light, compact, easy to use, and it has always rendered consistently sharp, well exposed slides. Perfect for travel, but "back home" I never use it. I keep thinking I will, but now mine needs new light seals.
For shooting 35mm around home and traveling in a car, I always choose my SLRs. I like the through-the-lens viewing, closer focusing, the total lack of parallax, and the ability to change lenses. The SLRs allow me a lot more flexibility.
- Murray