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Steven
My Dallmeyer 114947 is probably 1920s, so as you say won't be there - thanks for that. As for the research, if there were a way to contact WW i'd like to get a message to him that there could...

Any news of progress on this? As well as having a current need to date #114947, I'm the editor of Photographica World, and it sounds as if, with your agreement, it would be useful to publish such a...

Has anyone succeeded in extracting the glass from a lens cell which is secured by a thin metal lip being spun over the edge of the glass? I have a ~100-year-old wide angle rectilinear by C Burr,...

I never used the RB fisheye on an RB, as it came to me in a box of studio scrap (!) with some other stuff I needed (well, wanted anyway). But I have no reason to suppose it required mirror lockup, it...

David - yes, but I fear that's where we already are; it's within a few mm of the shutter blades.

Dan - unfortunately they aren't cells as in a normal LF lens. What we have here is an integral lens for a Mamiya RB67 MF camera, whose now-departed shutter was operated from the camera body with...

I'd like to go back to the original question, please! I have been trying to work with a fisheye lens on my Sinar F and/or Norma. The lens is the revived corpse of a 37mm f/4.5 Mamiya RB fisheye which...

Thanks to all for your help and advice, especially the pointer to a previous discussion thread with much of value. I seem to have irritated Bill 1856; I didn't mean to irritate anyone! I have looked...

I've just bought a 250mm Imagon with its 3 aperture plates, ND filter and hood. I'd love to get some advice as a Soft Focus Beginner on how best to use it (on either a Sinar or an MPP 5x4 camera)....