I always assumed they were just standard sub par third party lenses, but from what I have read they may be quite good.
Yes.
Angenieux filed their patent in 1950. I have not yet found and earlier one by Cooke.
Inverted Tele f2.0 35mm for Technicolor 3-strip cameras, this was developed by H.W.Lee in 1931 using a 6-
glass OPIC type behind a uncemented negative front pair to give increased back focus to clear the beam
splitter of the camera. (Tay023). Merte draws a version with the front glasses un-cemented (Brit Pat. 355,452)
The glass used was G1= 1.6510/33.7;G2=1.6135/59.4; G3=1.5730/57.3; G4= 1.6135/59.4; G5= 1.6120/38.0;
G6= 1.5790/40.4; G7= 1.6235/56.3; G8= 1.5730/57.3. This design was unique then and was not in
competition till after WW2. Possibly the size of the front glasses involved was off- putting, as was the small
demand for lenses for 24x36 SLR's.[P.C. Smethurst says it was Warmisham who designed it but this may be
an understandable memory lapse in an old man who was never able to check his draft. He also says it was a
50mm lens, with a front component a foot square and some 15in in front of the lens.
"Technicolor lenses" This process used only TTH lenses in a 1936 advert.(B.J.A. p55)
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