Kodak Ektars



	Kodak Enlarging Lenses In the period from the mid-1930s through the mid-1950s, Kodak developed and manufactured enlarging lenses in quality levels parallel to those in still camera lenses. While the 1939 Kodak Lenses and Shutters mentions that Kodak manufactures enlarging lenses but goes no further. I have early (in this context) Projection Anastigmats, but they carry no serial number so I am assuming that there is no way to date these lenses. The first documentation I can find for individual enlarging lenses is in the first edition in 1940 of the Kodak Reference Handbook. The 1945 version of the Handbook has minor updates to this list. The 1946 Kodak Data Book: Lenses, Shutters and Portra Lenses includes the same list, though the general section of this book discusses lumenizing, so Kodak enlarging lenses made before 1948 may have been coated. The 1948 Kodak Data Book: Lenses, Shutters and Portra Lenses shows the conversion from Projection Anastigmats to Projection Ektanons and a significantly reduced list of enlarging lenses that corresponded to the simplified product line of Kodak enlargers. The first detailed entries that I can find of enlarging lenses is in the 1954 Kodak Data Book: Enlarging with Kodak Materials and Equipment. Because of Kodak's simpler structure for documenting enlarging lenses, I have made a correspondingly simpler structure here.

DESC	LENS	ENLARGER/ MOUNT	LENS TYPE	NOTES
	1940 Kodak Reference Handbook. list of Kodak Projection Anastigmats and Projection Ektars
	1942-45-46 Kodak Reference Handbook. list of Kodak Projection Anastigmats and Projection Ektars
	1948-52-55 Kodak Data Book: Lenses, Shutters and Portra Lenses. list of Kodak Enlarging Ektanons and Enlarging Ektars
	50mm 75mm f /4.5 Enlarging Ektar	Precision Enlarger A Flurolite Enlarger Minature Enlarger or other flat lens boards	Heliar	Early models were not coated. Models with K as last character of serial number were described as "Specially corrected for lateral chromatic aberration", though all Ektars were said to have this correction by virtue of the kinds of glasses used.
	100mm f /4.5 Enlarging Ektar	Precision Enlarger A Flurolite Enlarger or other flat lens boards	Dialyte
	50mm 75mm 100mm f /4.5 Enlarging Ektanon	Precision Enlarger A Flurolite Enlarger Minature Enlarger or other flat lens boards	Triplet	Prior to 1948 these were Projection Anastigmats
	89mm f /6.3 Enlarging Ektanon	Hobbyist Enlarger	Triplet	Dedicated mounting tube exclusively for this model.
	5 3/8 inch f /4.5 Enlarging Ektanon	Precision Enlarger B Advance Enlarger or other flat lens boards	Tessar
	6 3/8 inch 7 1/2 inch f /4.5 Enlarging Ektanon	Precision Enlarger B or other flat lens boards	Tessar
	10 inch f /4.5 Enlarging Ektanon	Eastman Projection Printer, 8x10 or other flat lens boards for very large printers	Tessar
	10 inch f /8 Enlarging Ektanon	Eastman Projection Printer, 8x10 or other flat lens boards for very large printers	Dialyte	Fixed diaphram
	Unusual enlarging lenses listed before 1954 Kodak Data Book: Enlarging with Kodak Materials and Equipment
	105mm f /4.5 Projection Anastigmat		?	Listed through 1946 for "Process color work from 24 x 36 and 28 x 40mm originals". Models with K as last character of serial number were described as "Specially corrected for lateral chromatic aberration"
	98mm f /11 Projection Anastigmat	Precision Enlarger Advance Enlarger	?	Fixed diaphram


	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, Fourth 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.

10/19/2010 13:19