Category Archives: Lenses

How kodak lenses were produced

EASTMAN KODAK JIFFY + Kodak vest pocket

  Rochester Precision Optics This is a great historical film for any optics or camera buffs. In 2005, Rochester Precision Optics was formed after acquiring the assets and intellectual property of Kodak Optical Imaging Systems. This business was originally known as Kodak Hawk-Eye Works. It was established in 1912 for the design of optics after […]

The quest for autofocus lenses

As the Leica cameras got more sophisticated, engineers recognized that the light meter in the camera displayed a sensitivity to contrast. A frame looked the most contrasty when in focus, Richter said. This observation paved the way for autofocus technology. Leica used its Leicaflex SL2 for the autofocus prototype and equipped a 50 mm lens […]

How to date Hasselblad products not showing a serial number

Seial hasselblad 1600

How to find out when your Hasselblad was made by Q.G. de Bakker All Hasselblad cameras and film magazines, as well as some other Hasselblad items, bear a two or three letter code in front of, or incorporated into, the serial number. Two of these letters are used to encrypt the year of manufacture. The […]

How to determine the age of a Carl Zeiss lens

Werra 2 Olive + Lightmeter

Zeiss Lens Serial Numbers Between 1912 and 1942 Year of Manufacture – Serial Number Range 1912 – 173418-200520 1913-  208473-249350 1914 – 249886-252739 1915-  282820- 1916-  Unknown 1917 – 289087-298157 1918-  298115-322748 1919 – 322799-351611 1920 – 375194-419823 1921 – 433273-438361 1922 – 422899-498006 1923 – 561270-578297 1924 – 631869- 1925 – 652230-681743 1926 – […]