Rolleiflex SL66
   HOME

TheInfoList



OR:

The Rolleiflex SL66 is a line of
medium format Medium format has traditionally referred to a film format in photography and the related cameras and equipment that use film. Nowadays, the term applies to film and digital cameras that record images on media larger than the used in 35&n ...
single lens reflex camera In photography, a single-lens reflex camera (SLR) is a type of camera that uses a mirror and prism system to allow photographers to view through the lens and see exactly what will be captured. SLRs became the dominant design for professional a ...
s made by
Rollei Rollei () is a German manufacturer of optical instruments founded in 1920 by and in Braunschweig, Lower Saxony, and maker of the Rolleiflex and Rolleicord series of cameras. Later products included specialty and nostalgic type films for the ...
, in regular production starting from 1966 until Rollei's bankruptcy in 1982. The SL66 represented a change in direction for Rollei, which until that time had focused almost exclusively on its popular
twin lens reflex camera A twin-lens reflex camera (TLR) is a type of camera with two objective lenses of the same focal length. One of the lenses is the photographic objective or "taking lens" (the lens that takes the picture), while the other is used for the viewfinde ...
s, the
Rolleiflex Rolleiflex is a long-running and diverse line of high-end cameras originally made by the German company Franke & Heidecke, and later Rollei-Werke. History The "Rolleiflex" name is most commonly used to refer to Rollei's premier line of med ...
and
Rolleicord The Rolleicord is a medium-format twin lens reflex camera made by Franke & Heidecke (Rollei) between 1933 and 1976. It was a simpler, less expensive version of the high-end Rolleiflex TLR, aimed at amateur photographers who wanted a high-qualit ...
. The
Rolleiflex SLX The Rolleiflex SLX is a line of medium format single lens reflex cameras made by Rollei, in regular production starting from 1976. The SLX incorporated electronic autoexposure and Motor drive (photography), motorized film transport, competing dire ...
, which was introduced in 1973, effectively replaced the SL66, although the older camera continued in production. After reorganization, Rollei resumed production of the SL66 and introduced the SL66E; variants of the SL66 were introduced and produced until the line was discontinued in 1992.


History

In 1957, a
gentlemen's agreement A gentlemen's agreement, or gentleman's agreement, is an informal and legally non-binding wikt:agreement, agreement between two or more parties. It is typically Oral contract, oral, but it may be written or simply understood as part of an unspok ...
between Reinhold Heidecke, inventor of the Rolleiflex TLR, and
Victor Hasselblad Victor Hasselblad (8 March 1906 – 5 August 1978) was a Swedish inventor and photographer, known for inventing the Hasselblad 6x6 cm medium format camera. Life and work Hasselblad was born in Gothenburg. In 1940 Swedish Air Force officers ...
, inventor of the
Hasselblad Victor Hasselblad AB is a Sweden, Swedish manufacturer of medium format (film), medium format cameras, photographic equipment and image scanners based in Gothenburg, Sweden. The company originally became known for its classic analog medium-for ...
SLR, was reached to ensure that Rollei would not manufacture SLR cameras, and Hasselblad would not manufacture TLR cameras. However, the rapid adoption of SLRs during the 1960s meant that Rollei risked falling behind in this market at a time when demand for TLRs was decreasing. In 1964 plans were made to create a new, technologically advanced SLR to be introduced at the 1966 photokina festival. Although Rollei never officially discontinued the Rollei SL66, it was removed from their promotional support and dealer catalogs in the UK from 1976 and for all intents and purposes was replaced by the Rolleiflex SLX. The UK importer was Rollei themselves. The Rolleiflex SL66 did not feature in Rollei's worldwide product catalog in 1980, and the US importer's July 1979 dealer price list has no SL66 cameras nor 40mm, 250mm, or 500mm lenses. This strongly suggests that the camera was effectively discontinued from 1976 until the launch of the SL66E in October 1982 after the restart of camera production following the first bankruptcy. Three additional cameras based on the SL66 were released starting in 1982: the SL66E, SL66X, and SL66SE. Compared to the SL66, the SL66E, introduced in 1982, adds three silicon
photodiode A photodiode is a semiconductor diode sensitive to photon radiation, such as visible light, infrared or ultraviolet radiation, X-rays and gamma rays. It produces an electrical current when it absorbs photons. This can be used for detection and me ...
s (SPD) for center-weighted averaging metering through the lens (TTL). In addition, the SL66E is capable of TTL flash exposure control. It uses a single 6 volt PX28 (4SR44) battery. Compared to the SL66E, the SL66X drops ambient light metering but retains TTL flash exposure control using an SPD, while the SL66SE has an upgraded ambient light meter capable of autoexposure and switchable between spot and center-weighted averaging modes, using one or five SPDs, respectively. The SL66SE remained in production until 1992.


Design

Like the Rolleiflex TLR and the Hasselblad SLR, the SL66 uses 120 or 220 rollfilm to produce frames of up to 6×6 cm (nominal); the actual image size is based on
imperial units The imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed thr ...
, measuring . The camera has a modular design; the central camera body incorporates the single-lens reflex mirror and focusing bellows, with interfaces accommodating interchangeable lenses, viewfinders, focusing screens, and film backs. With the standard (80 mm) lens and folding waist-level finder, the SL66 measures (L×H×W) and weighs ; the 6×6 rollfilm magazine adds unloaded and to the length.


Basic operation

The body is equipped with a front lens standard which extends on a
bellows A bellows or pair of bellows is a device constructed to furnish a strong blast of air. The simplest type consists of a flexible bag comprising a pair of rigid boards with handles joined by flexible leather sides enclosing an approximately airtig ...
for focusing, controlled by a large knob which falls under the photographer's left hand while using the camera. The maximum bellows extension is , which gives a magnification ratio of approximately × using the standard (80 mm) lens. This enables several features unique to the SL66: * Reverse-mounting lenses. Most SL66 lenses (with the exception of the very wide or very long lenses) could be reversed and mounted to the camera without adapters, for use in close-up
macro photography Macro photography (or photomacrography or macrography, and sometimes macrophotography) is extreme close-up photography, usually of very small subjects and living organisms like insects, in which the size of the subject in the photograph is g ...
. The maximum magnification ratio with a reversed standard (80 mm) lens is 1.5×. * Lens bellows to accommodate focusing when the lenses are reverse-mounted. Again, this is impossible for most SLR cameras without special adapters. * Lens tilt movement. The lenses could be tilted up to 8 degrees either up or down, to take advantage of the
Scheimpflug principle The Scheimpflug principle is a description of the geometric relationship between the orientation of the plane of Focus (optics), focus, the lens plane, and the image plane of an optical system (such as a camera) when the lens plane is not para ...
, enabling greater depth of field, especially in close-up photographs. An additional extension bellows was available, which allowed a total maximum focus extension of . The focusing knob has built-in focusing distance and
depth of field The depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus (optics), focus in an image captured with a camera. See also the closely related depth of focus. Factors affecting depth ...
scales for 50, 80, 150, and 250 mm lenses. The shutter release is on the bottom front corner of the camera, falling under the photographer's right hand. Shutter speeds are selected by a knob operated by the photographer's right hand and range from 1 to  sec in whole steps. A crank unfolds from the shutter speed knob to wind the film and tension the shutter; a double-exposure control is provided, allowing the photographer to tension the shutter without winding the film. The SL66 and its derivatives are equipped with a mechanically-timed focal-plane shutter, using two vertically-traveling cloth blinds; the maximum flash synchronization speed using the focal-plane shutter is  sec. 80 mm and 150 mm lenses with built-in
leaf shutter In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow ...
s were introduced in January 1970, which enabled much higher flash synchronization speeds up to  second. However, with these lenses, the leaf shutter requires manual cocking (tensioning) before each exposure which is not particularly convenient.


Backs

Film is loaded into interchangeable backs; these each have a
dark slide In photography, a dark slide is a wooden or metal plate that covers the sensitized emulsion side of a photographic plate. In use, a pair of plates joined back to back were used with both plates covered with a dark slide. When used, the dark slid ...
which allows for mid-roll film changes. To avoid inadvertently spoiling the film, the dark slide must be in place shielding the film before the back can be removed; in addition, the dark slide can only be stored in the top of the magazine when the camera shutter has been cocked, preventing exposures when the dark slide is in place. Both 6×6 and 645 rollfilm backs were available; the 645 back produces images that are , and separate 645 backs were available for vertical and horizontal orientations. In addition, sheet film and Polaroid backs were available.


Lenses

Because the SL66 body has an extending bellows for focus, the only control on most lenses is for preset
aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...
selection; lenses with leaf shutters also have shutter speed and cocking controls. All lenses are equipped with an automatic diaphragm; viewing and focusing are performed at full aperture, and the camera stops down the aperture to the preselected setting after the shutter release is pressed, just before exposing the film. A depth of field preview control is provided on the front lens standard, just ahead of the magnification scale on the side of the bellows support. In addition to the lenses listed, Rollei offered adapters that allowed the use of Zeiss ''Luminar'' macrophotography lenses (with focal lengths of 16, 25, 40, 63, or 100 mm) or a blank adapter that could be drilled to accommodate other lenses with a maximum size of .


Viewfinders and focusing screens

As standard equipment, the SL66 comes with a folding waist-level finder with a built-in magnifier and a
ground glass Ground glass is glass whose surface has been ground to produce a flat but rough ( matte) finish, in which the glass is in small sharp fragments. Ground glass surfaces have many applications, ranging from ornamentation on windows and table glass ...
focusing screen with a central microprism spot, grid lines etched at intervals, and an integrated
Fresnel lens A Fresnel lens ( ; ; or ) is a type of composite compact lens (optics), lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections. The simpler Dioptrics, d ...
. The viewfinder displays an image , which is % of the area recorded on the film. The magnifying lens in the viewfinder could be changed. Other available viewfinders include: * Folding hood with sports finder, which is similar to the standard waist-level finder, but includes a folding frame for eye-level viewing * Rigid magnifying hood, which accommodates waist-level viewing with better shielding of the focusing screen * Exposure meter hood, which is similar to the rigid magnifying hood with a built-in exposure meter that uses five
photoresistor A photoresistor (also known as a light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases in resistance as a result of increasing luminosity (light) on its sensitive surface, in other words, it exhibits pho ...
s; four are used in a frame-averaged arrangement, and one can be swung down and used to measure the central spot area (15%) *
Pentaprism A pentaprism is a five-sided reflecting prism (optics), prism used to deviate a beam of light by a constant 90°, even if the entry beam is not at 90° to the prism. The beam reflects inside the prism ''twice'', allowing the transmission of an i ...
finder, which provides an eyepiece at 45° from vertical, and rotates to allow viewing from the side or front; sports finder frames could be attached The screen could be changed to one of several alternatives:


References


External links


Rolleiflex SL66 website
(Information about all Rolleiflex SL66 camera models, lenses and accessories)
Rolleiflex SL 66
(by Ferdi Stutterheim)
DW Photo
(Manufacturer of the modern medium format Rolleiflex cameras and repair) English and German
Paepke Fototechnik
(Repair and maintenance of Rolleiflex cameras and other Rollei equipment) English and German

(Repair and maintenance for Rolleiflex TLR cameras)
Rolleiflex SL66 Repair Shops World Wide
(by Ferdi Stutterheim)
International Rollei Club
(Largest Rollei website with details of all Rolleiflex equipment ever made)
Club Rollei User
(Club for all Users, Collectors and Enthusiasts of Rollei photography) {{Rollei SL66