Leica Lenses, RF coupled?

[James Brannan]

First off I have just recently aquired a Bessa R and have been looking around various places online (eBay mainly) at olded Leica screwmount lenses. In one auction I noticed the seller pointed out that his lens was marked in a way that would indicate it was rangefinder coupled while some earlier versions of the same lens were not. Before this I just assumed all Leica screwmount lenses would be rangefinder coupled. My question then is...

Are there any online recources that list which Leica screwmount lenses are or are not rangefinder coupled?

Thanks in advance for any help with this. 😀

 

[rpsawin]

log onto Cameraquest.com lots of info there.

Bob