I just finished cleaning up this Ikonta 521/16 6x6. Got it all restored to working order, even the self timer, that is great for those long exposure shots when you forgot your cable release. If you have ever used one of these, you know that with the double exposure lock, if you press the button and forgot to cock the shutter, you just lost an exposure on your roll. So I disabled the lock but retained the red wind indicator to indicate that you wound it, but got rid of the (OH SH*T) factor. The f4.5/7.5cm Novar lens cleaned up cristal clear and I'll post some shots with it. It's a Real Nice little camera.