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|FED-4 type 4b c.1975 image by Süleyman Demir (Image rights)|
Its main improvement over the FED-3 is its added uncoupled selenium meter, with a window in front of the speed dial. The meter has a scale on the user's left of the top-plate, with a match-needle linked to a calculator dial. The placement of the meter calculator leaves the rewind as a thumb-wheel on the end of the camera.
Foto-Quelle sold the FED-4 in Germany as the Revue 4 (F194). Special editions were produced for the 1980 Olympics in Moscow, and the 50th anniversary of the October Revolution in 1967.
There are 6 types and 10 sub-types of the camera, as to Alexander Komarov 
- Lens: Industar-61 (ИНДУСТАР ) 52mm f/2.8 Mount: M39 screw mount, filter slip-on
- Aperture: f/2.8-f/16 setting: ring and scale on the lens shutter barrel
- Focus range: 1-20m +inf
- Focusing: matching yellow rangefinder images in the viewfinder, distance scale and ring on the lens, w/ DOF scale
- Lens release: simply screw counter-clockwise
- Shutter: rubberized silk double cloth curtain, horizontal focal plane,
- Speeds:1-1/500 +B, setting: dial on the right of the top plate, Note. When setting to low speeds you will hear a clockwork winding voice.
- Shutter release: beside the winding lever, w/ cable release socket
- Cocking lever: also winds the film, short stroke, retractable, on the right of the top plate
- Frame counter: coupled with the cocking lever, advance type, manual reset
- Viewfinder: coupled viewfinder/ rangefinder, w/ Diopter correction ring, around eyepiece
- Exposure meter: uncoupled Selenium cell sensor, metering by a needle window on the top-plate
- Exposure setting: Set the film speed on the setting dial. Even though the speeds on the dial are in GOST, just set the ASA value; Point the camera to the scene you want to photograph; Turn the light meter dial until the needles in the window match; Read off the suitable shutter speed and aperture combinations on the dial and set the camera accordingly
- Re-wind knob: a thumb wheel on the left side of the camera
- Re-wind release: set to B the collar aroun the shutter release
- Flash PC socket: on front of the camera
- Memory dial : on the winding knob
- Back cover: removable, opens by two folding levers on the top plate
- Engraving on the back of the top plate: FED logo, Made in USSR and serial no.
- Tripod socket: ¼"
- Strap lugs: none
- Body: metal; Weight: 780g
|FED-4 type 4b c.1975 Images by Süleyman Demir (Image rights)|
Notes and referencesEdit
- ↑ in Fotoua
- ↑ The early Leica cameras, and the other Leica inspired cameras like Canon III, FEDs and Zorkis, and almost any camera which winding also causes the film speed selector turning, always cock the shutter before changing film speeds.
- in Fotoua
- in Sovietcams
- Fed 4 models at USSR Photo
- FED 4a at USSR Photo
- FED 4b by Roland & Caroline
- FED 4b instructions on the Marriott's site
- At Sylvain Halgand's www.collection-appareils.fr
- Fed 4b at Interno in bakelite (italian)
- Revue 4 at Kurt Tauber's
- JM Burtscher sovietcamera website : Sovietcamera french website
- FED 4 at r-kobus.eu
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