Uncoated plasmats

[domaz]

Ok so we know that uncoated plastmats are not really a good thing- 6 elements to cut down contrast. But is it safe to say that the only uncoated plasmats for LF use is the Hugo Meyer Plasmat Convertible series? I haven't gone through every page of the Vade Mecum but I don't remember ever seeing another reference to an uncoated LF plastmat.

[Ole Tjugen]

It is rarely safe to say anything at all about German lenses based on the Vade Mecum, but I don't know of any others either. But it wouldn't surprise me much if there is a half dozen more.

[Louis Pacilla]

How about the Hugo Meyers Doppel Anastigmat f6 Euryplan?

[domaz]

How about the Hugo Meyers Doppel Anastigmat f6 Euryplan?

Ahh thanks for that one. I did a bit more searching on that angle and it seems the Zeiss Orthometar was also plastmat design and probably uncoated.

[David Lindquist]

Ok so we know that uncoated plastmats are not really a good thing- 6 elements to cut down contrast. But is it safe to say that the only uncoated plasmats for LF use is the Hugo Meyer Plasmat Convertible series? I haven't gone through every page of the Vade Mecum but I don't remember ever seeing another reference to an uncoated LF plastmat.

The Ross Wide Angle Xpres is a Plasmat design, with a British patent date of August 16, 1928, so would have been uncoated.
David

[Steven Tribe]

Pre 1914, there was Schulze and Billerbeck, Gorlitz, Germany with their original Euryplan series and Suter had a licence from Rudolph for their Plasmats.

[sinhof]

Here is the Orthometar 4,5/25cm. Seems to be uncoated. I think this is made year 1941. This thread is the only including the word "Orthometar". Who can tell more about this rare optic? Picture later. Lens # 2729609.

[E. von Hoegh]

If it's the one that looks to be a Plasmat, there isn't much to say that hasn't been said. It's a flare machine. Your link doesn't work, BTW.

[Jody_S]

I have a couple of the Schulze & Billerbecks, they have their uses but I wouldn't try one shooting into foreground light. Can be sharp enough if used in the right manner. No worse to use than a 1930s Summar on a Leica, for example.

[Jody_S]

I'm re-scanning some of my older shots, I came across a lens test of a Schulze & Billerbeck Euryplan-Anastigmat Series I 6in f4.5. I got the cells in a box of stuff, and machined a barrel for them. I never got around to making stops, so this was wide open. I'm posting this for the interesting flare patterns. I focused on the lights about 10ft in front of the church doors, and because it's wide open that's about all that's in focus.