Can't find much about this lens. Have some notes that it is a Planar 6/4 that is optimal at f:11, not f:22 like a plasmat. If it is a Planar design it should be a 60 to 64 degree lens good for coverage up to 5x7. It also says it is convertible which I think is unusual for a Planar design. Any info and/or experience on this lens would be appreciated.
I believe it to be an early plasmat design. Sort of Steineils version of the early Schneider convertible Symmar
The VM isn't much help but makes it clear that Quinon was a trade name that included a number of design types.
6/4 convertible double Gauss types aren't unknown. Boyer's f/2.8 Saphir, another trade name that included a number of design types, was one.
f/5.6 suggests a convertible plasmat.
Do you have a photo or a serial number?
I presume you've already read through this thread?
https://www.largeformatphotography.i...heil-Quinon-S/
I do now remember Arne's thread now & I stand corrected.Originally Posted by MAubrey
I should have remembered as I owned a couple in shutter back then. Never tested them before I moved them on but I do remember they where post WWII & single coated.
I can't find any serial number.
Yes, that is where my info came from, I had a hard copy filed away!
I plan on using it on my 5x7 Kardan Bi and compare it with the 210 Symmar-S, both at f:11.
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