Kodak Ektars

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.

DESC	LENS	CAMERA/SHUTTER/ MOUNT	LENS TYPE	NOTES
	f/3.5 100mm	Medalist II Flash Supermatic	Heliar	Ser VI retaining ring, Ser VI. Magnesium fluoride coated-'Lumenized' Repurposing note ¶ Cutaway image
	f/3.7 105mm	Flash Supermatic	Heliar	38mm slipon adapter ring, Ser VI. Magnesium fluoride coated-'Lumenized' Comparisons to the earlier 107mm f /3.7 Ektar.
	f/4.5 101mm	Flash Supermatic Synchro-Rapid 800 #0	Tessar	33mm slipon adapter ring, Ser VI. Magnesium fluoride coated-'Lumenized' Back Focus: 90mm Mounting hole: 1 3/8 in; 34.8mm
	f/4.7 127mm	Flash Supermatic, Supermatic X #1‡	Tessar	38mm slipon adapter ring, Ser VI. Magnesium fluoride coated-'Lumenized' Mounting hole: 1 1/2 in; 38.1mm Back Focus: 113mm
	f/4.7 152mm	Flash Supermatic #2‡	Tessar	44.5mm slipon adapter ring, Ser VII. Magnesium fluoride coated-'Lumenized' Mounting hole: 1 7/8 in; 47mm Back Focus: 135.2mm Coverage: 182 *
	f/7.7 8 inch (203mm)	Flash Supermatic #1‡	Dialyte	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 *
	f/6.3 8 1/2 inch Commercial Ektar	Ilex Synchro #3 1 - 1/150 in; or barrel	Tessar	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 *
	f/6.3 10 inch Commercial Ektar	Ilex Synchro #4 1 - 1/100; or barrel	Tessar	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 *
	f/6.3 12 inch Commercial Ektar	Ilex Synchro #4 1 - 1/100; or barrel	Tessar	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 *
	f/6.3 14 inch Commercial Ektar	Ilex Synchro #5 1 - 1/50; or barrel	Tessar	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 *
	f/6.3 80mm Wide Field Ektar	Flash Supermatic #0 1 - 1/400	Double Gauss	No 27 screwon adapter ring, Ser VI. Magnesium fluoride coated-'Lumenized' Angle of view at Inf 55° x 68°; recommended for 2 1/4 x 3 1/4 w/swings; 3 1/4 x 4 1/4 w/o; Circle of good definition @ f /16 with object at Inf: 132.75mm µ Mounting hole: 1 3/8 in; 34.8mm Back Focus: 72mm; Flange Focus: 79.1mm
	f/6.3 100mm Wide Field Ektar	Flash Supermatic #1 1 - 1/400	Double Gauss	Special supplied adapter ring, Ser VII. Magnesium fluoride coated-'Lumenized' Angle of view at Inf 54° x 65°; recommended for 3 1/4 x 4 1/4 w/swings; 4 x 5 w/o Circle of good definition @ f /16 with object at Inf: 165.6mm µ Mounting hole: 1 1/2 in; 38.1mm Back Focus: 90.25mm; Flange Focus: 101.25mm Coverage: 183 *
	f/6.3 135mm Wide Field Ektar	Flash Supermatic #2 1 - 1/200	Double Gauss	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 *
	f/6.3 190mm Wide Field Ektar	Ilex Acme Synchro #3 1 - 1/150	Double Gauss	Builtin adapter ring, Ser VIII. Magnesium fluoride coated-'Lumenized' Angle of view at Inf 56° x 68°; recommended for 5 x 7 w/swings; 8 x 10 w/o Circle of good definition @ f /16 with object at Inf: 312.5mm µ Mounting hole: 2 1/8 in; 53.7mm Back Focus: 167.5mm; Flange Focus: 179.4mm Coverage: 318 *
	f/6.3 250mm Wide Field Ektar	Ilex Universal Synchro #4 1 - 1/50	Double Gauss	No series size; special order . Magnesium fluoride coated-'Lumenized' Angle of view at Inf 59° x 71°; recommended for 8 x 10 w/swings; 11 x 14 w/o Circle of good definition @ f /16 with object at Inf: 415mm µ Mounting hole: 2 7/8 in; 73mm Back Focus: 223mm; Flange Focus: 248.2mm Coverage: 422 *
	KODAK ANASTIGMATS AND ANASTIGMAT SPECIALS Beginning with the Kodak Reference Handbook of 1940, no descriptive details were given for Kodak Anastigmat and Kodak Anastigmat Special lenses mounted on consumer cameras. This scan provides limited information about these lenses as listed in 1948. More detailed information about most of these lenses is available in the table for Kodak Lenses and Shutters of 1939 .

† 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.


	Ektar Home Page	Kodak Lens Index
	About Ektar lens data	Kodak Lens Lineage
	Kodak Ektar Summary	Kodak Lens Coating
	Kodak Lenses and Shutters © 1939‡	Kodak Reference Handbook: Lenses, Rangefinders and Shutters section © 1940†
	Kodak Reference Handbook: Lenses, Rangefinders and Shutters section © 1942, 1945†	Data Book on Lenses, Shutters and Portra Lenses, for Revising Kodak Reference Handbook, © 1942, 1945; Second 1946 Printing
	Kodak Data Book: Lenses, Shutters and Portra Lenses, Third Edition, (1948)	Kodak Data Book: Lenses, Shutters and Portra Lenses, Fourth Edition, (1952)
	Kodak Data Book: Lenses, Shutters and Portra Lenses, Fifth Edition, (1955)	Kodak Professional Handbook, Equipment Section, (1952)
	Kodak Data Book: Lenses, Shutters and Portra Lenses, Sixth Edition, (1958)	Kodak Lens Serial Numbers
	Enlarging Lenses
‡ †	This booklet predates the first edition of the Kodak Reference Handbook and contains detailed information about many more lens models and considerable background information about Kodak lens design and production. Kodak issued replacement pages to registered owners of the original Kodak Reference Handbook which was published in a loose-leaf binder; the replacement pages contained updated information about new products and processes. Newer versions of the Handbook would have contained these pages. © dates in this material appear for 1940, 1942, 1943 and 1945 and perhaps other dates. One of the first separately bound Data Books was published in 1946 "For Revising Reference Handbooks," and noted as Second Printing.

10/29/2010 20:44