Difference between revisions of "Automatic 66"
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| − | The '''Automatic 66''' is an advanced | + | The '''Automatic 66''' is an advanced coupled-rangefinder camera for 2¼-inch square (6x6cm) pictures on [[120 film]], made by [[Agfa]] in 1956.<ref name=McK>{{McKeown12}} p17.</ref> It is a development of the [[Super Isolette]]. It sold for DM 498 in 1956-1957. |
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Revision as of 01:48, 28 December 2012
The Automatic 66 is an advanced coupled-rangefinder camera for 2¼-inch square (6x6cm) pictures on 120 film, made by Agfa in 1956.[1] It is a development of the Super Isolette. It sold for DM 498 in 1956-1957.
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| Top housing of the Automatic 66, showing the meter image by Noelas (Image rights) |
The Automatic 66 has a coupled rangefinder, and a coupled selenium lightmeter providing aperture priority automatic exposure.
The lens is a unit focusing, multicoated 75mm f/3.5 Color-Solinar - which is a better color-corrected version of Agfa's Tessar clone. The shutter is a Prontor SVA[1] ('A' presumably for Automatic) and gives manually-set speeds from 1 to 1/300 second, plus 'B' and the automatic 'A' setting.
The camera has a film advance knob (on the right) and an automatic frame counter (rather than a red window).
The Automatic 66 was expensive, and rather few (less than 5000[2]) were made; it commands high prices.
Aperture Priority AE
The Agfa Automatic 66 provides Aperture-priority EA by an ingenious part-electrical and part-pneumatic mechanism: The film speed (set on the meter, in the top housing) and aperture controls both adjust variable resistances that bias the meter output.
In the user's manual, the meter's linkage to the shutter is compared to a cylinder air pump, with a spring-loaded piston, and a variable-diameter air inlet port.[2] The meter output determines the size of this air port, and the flow of air through it acts as an escapement mechanism, determining the delay before the shutter closes. The mechanism is in fact not Agfa's invention: it was the subject of a patent by the Italian firm Durst.[3]
Notes
- ↑ 1.0 1.1 McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). p17.
- ↑ 2.0 2.1 Automatic 66 at Club-Daguerre, including text (in German) quoted from the user's manual.
- ↑ German patent DE 923525 (C), lodged 1952 and granted 1954 to Julius & Gilbert Durst; at Espacenet, the Patent search facility of the European Patent Office.
Links
In English:
- Automatic 66 at Certo6.com.
- Automatic 66 in an auction in September 2006 by Auction Team Breker in Cologne.
- Automatic 66 sold at auction (for €900) at the November 2011 Westlicht Photographica Auction in Vienna; several excellent pictures.
