Hi,

I have an RB Series B 2x3 with a Kodak Anastigmat F4.5, 5 1/2 in lens.

Does anybody know what other lenses were available back in the days -- and also what is the threading of the lens mount?

I assume KODAK ANASTIGMAT 6 3/8 inches (162mm) F4.5 would not fit, right?

See pages 8 & 9 of this 1923 catalog:
http://piercevaubel.com/cam/catalogs/1923graflexlp324.htm

Thanks for the link!!

So it seems they never thought about interchangeable lenses? I thought I saw somewhere a discussion of some options for different lens options for the 2x3 SLR. But I cannot find it anymore -- so it may be it never existed

I measured the mount threads on my 1948 2x3 Series B 127mm f4.5 Ektar.
It is 1 13/32 x 24 tpi.
The camera serial number is on the view hood door behind the view hood if you want to date it.

Thank you so much!!

The serial number is 459347. Any idea how to date it?

Near the end of a large order listed 1/1948 with the next listing 1/1949

absolutely awesome. Thank you so much. I always want to know my camera's manufacturing age. I have, for example, a Rolleiflex 2.8F of my own age (as closely as you can date Rolleis), and a Kiev 60 built the same year when Chernobyl exploded just 60 miles south