If you read down in the linked thread, the person doing this admits that the goggles (RF optics) on the dual range lens don't work on the CL because the RF window spacing is different. I don't see the point of doing this.
I also missed that he was putting it on a digital CL, although the fact that it's on dpreview should have been a clue. Clearly for the digital camera the goggle focusing is extraneous, but I guess his goal was whatever is needed to switch the lens into the close range (I don't have one of these lenses).
Anyway, close up attachments are specific to the RF spacing. There are some close up attachments for other RF cameras like Retinas and 60s rangefinders, but by the time the film CL was introduced, the film SLR had gained the advantage for close-up photography.
Does anyone know the logic of Leitz naming a second camera, a digital, "CL"?
All in all, it seems pretty stupid considering how many collectors of Leica everything, out there, and the actual users who want sure understanding of which camera they are using, especially when buying services like CLA, or ordering mechinical parts.
Does anyone know the logic of Leitz naming a second camera, a digital, "CL"?
All in all, it seems pretty stupid considering how many collectors of Leica everything, out there, and the actual users who want sure understanding of which camera they are using, especially when buying services like CLA, or ordering mechinical parts.
They probably hope the general public has forgotten the Minolta collaboration camera (especially when they dropped it, and Minolta continued with an improved version). My understanding is CL stands for Compact Leica.
Kodak used to do that with film sizes.
For quite a few years, people swore that Ford did it with the Mustang.
And of course, the film re-branders do it regularly.
One of the reasons to reuse a name is to keep the trademark alive. If a trademark is unused for a long enough period of time, its registration expires and it returns to the public domain. For ex, Kodak originally used Ektar for lenses, and now it's on film; Ektra was a very high end 35mm camera, and much later it was a line of 110 cameras; and so on. I don't know if Leica had any exclusive rights to "CL." I did just notice that they've re-used the "Visoflex" name for add-on electronic viewfinders, which are sort-of related to the function of the original Visoflex, but I bet retaining the trademark is also at issue.