The following still camera Ektars were documented in the Kodak Reference Manual/Lenses, Rangefinders and Shutters section, © 1942, 1945; given both dates, I assume that my copy is of the second edition, though that is not stated.
This logo is a link to a lens test by Chris Perez.

   
DESC
LENS

CAMERA/SHUTTER/
MOUNT
LENS TYPE
NOTES
f/2.0 45mm Bantam Special/
Compur or Supermatic		 Biotar

31.5mm slipon adapter ring, Ser VI.
Earliest versions probably had no coating; starting ~ 1939 calcium fluoride; later may have had magnesium fluoride.
f/1.9 50mm Ektra/Special Barrel/Focal Plane Biotar No 24 screwin adapter ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride. Two phase focusing: 3'-inf; 1.5'-3'
f/3.5 50mm Ektra/Special Barrel/Focal Plane Reversed Tessar † No 25 screwin adapter ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride. Two phase focusing: 3'-inf; 1.5'-3'
f/3.3 35mm Ektra/Special Barrel/Focal Plane Heliar No 26 screwin adapter ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride. Two phase focusing: 3'-inf; 1'-3'
f/3.5 90mm Ektra/Special Barrel/Focal Plane . Ser V=> Ser VI stepup ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride.
f/3.8 135mm Ektra/Special Barrel/Focal Plane Tele-Tessar Ser VI retaining ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride.
f/4.5 153mm Ektra/Special Barrel/Focal Plane Tele-Tessar Ser VI retaining ring, Ser VI.
Earliest versions had calcium fluoride coating; later may have had magnesium fluoride.
f/3.5 100mm

Medalist
No 2 Supermatic

Heliar Ser VI retaining ring, Ser VI.
Calcium fluoride coating.
Repurposing note

Cutaway image
f/3.7 105mm No 2 Supermatic,
 Heliar

38mm slipon adapter ring, Ser VI.
Earliest versions may had calcium fluoride coating (undocumented) ‚; later had magnesium fluoride.

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. §

f/4.5 101mm No 2 Supermatic,
 Tessar 31.5mm slipon adapter ring, Ser VI.
Earliest versions may had calcium fluoride coating (undocumented); later had magnesium fluoride.
f/4.7 127mm No 2 Supermatic,
 Tessar 38mm slipon adapter ring, Ser VI.
Earliest versions may had calcium fluoride coating (undocumented); later had magnesium fluoride.

  		f/7.7 8 inch
 No 2 Supermatic Dialyte 33mm slipon adapter ring, Ser VII.
Angle of view at Inf 35° x 47°
Coverage: 216 *
f/6.3 8 1/2 inch
Eastman Ektar		 Various shutters or barrel Tessar

44.5mm slipon adapter ring, Ser VII.
Inner surfaces had calcium fluoride coating.

f/6.3 10 inch
Eastman Ektar		 Various shutters or barrel Tessar

54mm slipon adapter ring, Ser VIII.
Inner surfaces had calcium fluoride coating.

f/6.3 12 inch
Eastman Ektar		 Various shutters or barrel Tessar

63.5mm slipon adapter ring, Ser VIII.
Inner surfaces had calcium fluoride coating.

f/6.3 14 inch
Eastman Ektar		 Various shutters or barrel Tessar

75mm slipon adapter ring, 4 inch square.
Inner surfaces had calcium fluoride coating.

 

f /4.5 7 1/2 inch
f /5.6 7 1/2 inch
f /6.3 8 1/2 inch
f /6.3 10  inch
f /4.5 12  inch
f /6.3 12 inch
Ektars

  		Ilex #4 or barrel
(Format not specified)
Ilex #3 or barrel
Ilex #4 or barrel
Ilex #5 or barrel
Barrel 		Probably Tessar These lenses were listed in 1952 Camera Technique for Professional Photographers as having been recently available for press and view cameras. I suspect the f /4.5 lenses were coated Antistigmats, since the lengths and maximum apertures are similar to the list below. The f /6.3 lens may have been of a slightly different formula, and become Commercial Ektars. These Ektars are not shown as such in the data section of either the 1945 nor 1948 publications.
  The professional line of Kodak Anastigmats were never called Ektars and were retired as a series between 1945 and 1948, and included here for reference. Kodak Anastigmats and Anastigmat Specials are described in a separate section.
f/4.5 5 1/2 in. through 12 in.
Anastigmat		 Various shutters or barrel Tessar No coating.
Available in the following models:
f /4.5, 5 1/2 in.; f /4.5, 6 3/8 in.;
f /4.5, 7 1/2 in.; f /4.5, 8 1/2 in.;
f /4.5, 10 in.; f /4.5, 12 in.
 

†
Occassionally Kodak lens designers reversed the elements in the rear group of the Tessar design so that the positive element was next to the stop. This arrangement was used in the 50mm f /3.5 Anastigmat Special on the Kodak 35 and again for the 78mm f /3.5 Ektar on the Chevron.
‚
Since this document describes inner air-glass surfaces being coated for other Ektars of this vintage and the material for this lens does not include that specification, I assume that, at least earlier examples of these lenses had no coating.
* Not available in Kodak Data Books. Reported by Michael Gudzinowicz


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.

Note: Later site visitors have supplied additional information about this lens.

   
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12/18/2007 15:36