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The EF, introduced by [[Canon]] in 1973, was the first and last of its kind. It used a [[Copal]] Square, a vertically travelling metal-curtain [[focal plane]] shutter. It offered shutter speeds from 1/2 to 1/1000 and bulb, which were mechanically controlled, and slow speeds from 1 to 30 seconds which were electronically controlled.
 
   
 
The '''[[Canon]] EF''', introduced in 1973, is the first and last of its kind, and is very similar in appearance to the original F-1, introduced 2 years earlier. It has a [[Copal]] Square vertically running metal-blade [[focal plane]] shutter. It offers mechanical shutter speeds from 1/2 to 1/1000 sec. and B, and electronically controlled slow speeds from 1 to 30 sec. (in reality, the 2 slowest speeds continue the doubling sequence, giving 16 and 32 sec.).
A silicon photocell was incorporated in the design to provide full-aperture, center-weighted averaging [[TTL]] metering. The camera offered shutter-priority automatic exposure.
 
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A silicon photocell provides full-aperture, center-weighted averaging [[TTL]] metering. The camera has shutter-priority automatic exposure.
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  +
The EF uses the FD-mount lenses, although FL lenses will work within their functional limits.
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  +
Frequently referred to as the Black Beauty, the EF incorporates many very good and thoughtful features, such as:
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  +
• full range of speeds from 1/1000 to 1/2 second, without batteries
  +
  +
• full exposure information in viewfinder
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  +
• concentric shutter release & shutter speed dial, the latter overlapping the front edge of the camera, allowing easy change of speed with one finger
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  +
• incorporates voltage control circuit, allowing use of modern 1.5V batteries (it was designed for a 1.3V PX625 mercury cell)
  +
  +
• multiple exposure button
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  +
• exposure lock button for use with automatic exposure
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  +
• film can be advanced rapidly to first frame without having to release the shutter (just 3 rapid strokes of the wind-on lever)
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  +
• combined depth-of-field preview, stopped-down metering, and mirror lock
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  +
• vertical-travelling shutter allows flash sync at 1/125 sec.
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  +
• silicon photocell allows metering at low light levels (EV -2 to EV 18)
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• PC flash terminal has spring-loaded cover; the terminal is therefore kept covered and clean when not in use, and the cover cannot be lost
   
 
== Links ==
 
== Links ==
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In English:
* [http://www.ne.jp/asahi/japan/manual-camera/efx1.htm Manual Camera User's Opinion]
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* [http://www.ne.jp/asahi/japan/manual-camera/efx1.htm Manual Camera User's Opinion] at [http://www.ne.jp/asahi/japan/manual-camera/index_e.htm Manual Cameras] by N.&nbsp;Maekawa
* Canon's Camera Museum [http://www.canon.com/camera-museum/camera/1970-1975/data/1973_ef.html entry for the EF]
 
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In French:
* Lionel's [http://35mm-compact.com/reflex/canonef.htm Canon EF overview in french] at 35mm-compact.com
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* Lionel's [http://35mm-compact.com/reflex/canonef.htm Canon EF overview] at [http://35mm-compact.com/index.php 35mm-compact.com]
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* [http://www.collection-appareils.fr/x/html/page_standard.php?id_appareil=10509 Canon EF] at [http://www.collection-appareils.fr/general/html/francais.php Sylvain Halgand's www.collection-appareils.fr]
   
   
{{canon}}
 
   
 
{{canon}}
[[Category: 35mm SLR]]
 
[[Category: Japan]]
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[[Category: Japanese 35mm SLR]]
[[Category: Canon]]
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[[Category: Canon FD mount]]
 
[[Category: C]]
 
[[Category: C]]
 
[[Category: E|Ef]]
 
[[Category: E|Ef]]

Revision as of 08:27, 27 March 2012

The Canon EF, introduced in 1973, is the first and last of its kind, and is very similar in appearance to the original F-1, introduced 2 years earlier. It has a Copal Square vertically running metal-blade focal plane shutter. It offers mechanical shutter speeds from 1/2 to 1/1000 sec. and B, and electronically controlled slow speeds from 1 to 30 sec. (in reality, the 2 slowest speeds continue the doubling sequence, giving 16 and 32 sec.).

A silicon photocell provides full-aperture, center-weighted averaging TTL metering. The camera has shutter-priority automatic exposure.

The EF uses the FD-mount lenses, although FL lenses will work within their functional limits.

Frequently referred to as the Black Beauty, the EF incorporates many very good and thoughtful features, such as:

• full range of speeds from 1/1000 to 1/2 second, without batteries

• full exposure information in viewfinder

• concentric shutter release & shutter speed dial, the latter overlapping the front edge of the camera, allowing easy change of speed with one finger

• incorporates voltage control circuit, allowing use of modern 1.5V batteries (it was designed for a 1.3V PX625 mercury cell)

• multiple exposure button

• exposure lock button for use with automatic exposure

• film can be advanced rapidly to first frame without having to release the shutter (just 3 rapid strokes of the wind-on lever)

• combined depth-of-field preview, stopped-down metering, and mirror lock

• vertical-travelling shutter allows flash sync at 1/125 sec.

• silicon photocell allows metering at low light levels (EV -2 to EV 18)

• PC flash terminal has spring-loaded cover; the terminal is therefore kept covered and clean when not in use, and the cover cannot be lost

Links

In English:

In French:


Canon Cameras