The following still camera Ektars were documented in the Kodak Data Book: Lenses Shutters and Portra Lenses, Third Edition, 1948.

This logo is a link to a lens test by Chris Perez.

Medalist II
Flash Supermatic

38mm slipon adapter ring, Ser VI.
Magnesium fluoride coated-'Lumenized'

There was also, apparently, an f/3.7 107mm Ektar that was reportedly a Tessar design. This lens is not included in my © 1942,1945 edition. §

Flash Supermatic
Synchro-Rapid 800
#0

33mm slipon adapter ring, Ser VI.
Magnesium fluoride coated-'Lumenized'
Back Focus: 90mm
Mounting hole: 1 3/8 in; 34.8mm

33mm slipon adapter ring, Ser VII.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 35° x 47°
Mounting hole: 1 1/2 in; 38.1mm
Back Focus: 190mm
Coverage: 216 *

44.5mm slipon adapter ring, Ser VII.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 33° x 45°; recommended negative size 5 x 7.
Mounting hole: 2 1/8 in; 53.7mm
Back Focus: 7.75 in.ß
Coverage: 270 *

54mm slipon adapter ring, Ser VIII.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 36° x 46°; recommended negative size 6 1/2 x 8 1/2.
Mounting hole: 2 7/8 in; 73mm
Back Focus: 9.125 in.ß
Coverage: 317 *

63.5mm slipon adapter ring, Ser VIII.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 37° x 45° ; recommended negative size 8 x 10.
Mounting hole: 2 7/8 in; 73mm
Back Focus: 11 in.ß
Coverage: 380 *

75mm slipon adapter ring, 4 inch square.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 32° x 40°; recommended negative size 8 x 10.
Mounting hole: 3 3/8 in; 85.56mm
Back Focus: 12.75 in.ß
Coverage: 444 *

Builtin adapter ring, Ser VII.
Magnesium fluoride coated-'Lumenized'
Angle of view at Inf 51° x 67°;
(80° - 230mm circle) †
recommended for 4 x 5 w/swings;
5 x 7 w/o
Circle of good definition @ f /16 with object at Inf: 225mm µ
Mounting hole: 1 7/8 in; 47mm  
Back Focus: 120.2mm; Flange Focus: 132.2mm
Coverage: 229 *

Ilex Universal Synchro #4
1 - 1/50

† Reported by Chris Perez
‡ These lenses were later offered in Synchro Compur shutters. Kodak data books no longer included lens
   and shutter data for professional cameras after 1952, so do not reflect these later Ektars for press and
   view cameras. Later examples of the 101mm f/4.5 and 105mm f/3.7 may have been sold in Compur shutters,
   though I have not seen any.
* Not available in Kodak Data Books. Reported by Michael Gudzinowicz
ß The measure given for Eastman Ektars, which became Commercial Ektars.
µ Kodak uses the qualitative phrase "circle of good definition with subject at infinity" but defines no quantitative measure

¶
Since this is such an excellent lens, it is natural to want to remount the stray example for use with another camera. Unfortunately, the linkages for shutter cocking and release don't lend themselves easily to this. To have this done by a qualified photo machinist would be likely to exceed the cost of a more modern lens of this length. See extended discussion on Medalist page.

§
Date: Sat, 05 Sep 1998
From: "R. Peters" torx@nwrain.net
To: Robert Monaghan rmonagha@post.cis.smu.edu
Subject: Re: thanks Re: Slide Projectors
....
One note on the 105mm f3.7 Ektar... It is easily confused with the 107mm f3.7 Kodak Anastigmat which I believe
was prewar, and I think it was a 4 element lens rather than a 5 element Heliar copy. Kodak put out a booklet
called, I believe, Kodak lenses & shutters or something like that. Showed the formulas (formulae?) for most of
the Ektars.
bob.