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Voigtländer Bessamatic and Ultramatic

Voigtländer Bessamatic and Ultramatic is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Voigtländer Bessamatic and Ultramatic rather than just read about it. In short: The Bessamatic and Ultramatic were lines of 35mm SLR cameras made by Voigtländer in the 1960s, featuring a selenium meter. It uses a leaf shutter, similar to competing SLR cameras manufactured by Kodak (Retina Reflex) and Zeiss Ikon (Contaflex SLR) in Germany, rather than the focal plane shutter almost universally adopted by Japanese SLRs such as the contemporary Nikon F and Pentax Spotmatic.

Voigtländer Bessamatic and Ultramatic — main illustration
Voigtländer Bessamatic and Ultramatic — illustration

Key takeaways

  • Voigtländer Bessamatic and Ultramatic belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Voigtländer Bessamatic and Ultramatic to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Voigtländer Bessamatic and Ultramatic from memory before moving on to harder problems.

Reference excerpt

The Bessamatic and Ultramatic were lines of 35mm SLR cameras made by Voigtländer in the 1960s, featuring a selenium meter. It uses a leaf shutter, similar to competing SLR cameras manufactured by Kodak (Retina Reflex) and Zeiss Ikon (Contaflex SLR) in Germany, rather than the focal plane shutter almost universally adopted by Japanese SLRs such as the contemporary Nikon F and Pentax Spotmatic. The Ultramatic was released in 1963, which used the same lens mount and added a shutter-priority autoexposure mode.

Design

The leaf shutter is a Synchro-Compur unit mounted behind the interchangeable lens, which uses the DKL-mount, although lenses made for the Bessamatic are not generally compatible with other DKL-mount cameras, and the Bessamatic DKL-mount will not generally accept non-Voigtländer lenses without physical modifications. The shutter speed settings range from 1 to 1⁄500 sec plus "B"ulb. As implemented, leaf shutter SLRs have two separate sets of blades: one to control the exposure time, and another to control the aperture. Because the shutter and aperture are held wide open while the photograph is being composed, there is a complicated sequence of operations required once the shutter release button is pressed:

Shutter is closed and aperture is stopped down Mirror (and capping plate) are raised Shutter is opened to expose the film Shutter is closed to end the exposure, aperture returns to wide open This introduces an unavoidable shutter lag of approximately 1⁄50 sec. Then, as the film is wound on to the next frame, additional operations follow to make the camera ready for the next composition and exposure: Mirror (and capping plate) are lowered Shutter is cocked and opened The Bessamatic has a reputation as a tricky camera to repair, although if looked after it can be reliable and pleasant to use. It is certainly worth seeking out someone familiar with this model for servicing and repair, as the reputation is not totally unfounded. The mechanism is very precisely made with many small components and can be damaged if any of the controls are forced. This can easily turn a minor repair into a camera fit only for spare parts.

Models

Zeiss Ikon purchased a stake in Voigtländer in the 1940s, and acquired the remainder in 1956, but Voigtländer continued to operate as an autonomous unit. The original Bessamatic was released in 1958, in direct competition with the Zeiss Ikon Contaflex SLR, which also was a leaf shutter SLR made in Germany with interchangeable lenses. In comparison to the Contaflex, the Bessamatic offered a more convenient, fully-coupled exposure meter, although the Bessamatic did not have an instant-return mirror; the mirror instead was dropped into viewing position when the film was wound. The Bessamatic also used the DKL bayonet lens mount introduced in 1956 with the Voigtländer Vitessa T rangefinder camera, with some physical differences that left the systems mutually incompatible. In 1962/63, Voigtländer released the Bessamatic Deluxe and Ultramatic. The Deluxe added a small periscope to relay aperture and shutter speed settings into the viewfinder. The Ultramatic included those displays and added a shutter-priority autoexposure mode; the camera could automatically select the aperture based on the photographer's selection of a shutter speed. In addition, the Ultramatic had a rapid-return mirror, meaning the mirror automatically reset to its lowered position after the exposure, without requiring the film to be wound on, as implemented with the Bessamatic models. The Bessamatic m was an entry-level model introduced in 1964 which has no meter at all, and is uncommon today. The m typically was bundled with a three-element Color-Lanthar lens to reduce costs; although the Color-Lanthar is less common than the Color-Skopar and usually more expensive now, the Tessar-derived Skopar is a superior lens.

Voigtländer introduced the Ultramatic CS in 1965, updating the meter from an external selenium cell to a coupled, TTL light meter using a CdS photoresistor, retaining the shutter-priority autoexposure mode and the shutter speed and aperture periscope from the original Ultramatic, being one of the first TTL metering SLRs to have both settings displayed. The rapid return mirror was dropped from the prior Ultramatic, though, as that camera proved to be vulnerable to a jammed shutter, and the Ultramatic CS generally is regarded as a more reliable model. By 1963, Voigtländer's chief designer, Walter Swarofsky, had developed the Bessaflex as a potential successor to the Bessamatic/Ultramatic line, using a proprietary bayonet lens mount and a focal plane shutter. However, the project was shelved as Voigtländer's parent, Zeiss Ikon, already was selling three mutually incompatible SLR systems (the Contaflex SLR, Contarex, and Bessamatic/Ultramatic). The Bessaflex project eventually was revived and released as the Zeiss Ikon/Voigtländer Icarex 35 in 1966.

After the Icarex was released, Voigtländer also gave the Bessamatic the same CdS TTL meter as the Ultramatic CS, releasing the Bessamatic CS in 1967. The Bessamatic CS is typically fitted with a Color-Lanthar 50 mm f/2.8 lens. The Bessamatic CS is relatively uncommon, as the Bessamatic and Ultramatic lines were supplemented and ultimately replaced by the Icarex, and Zeiss Ikon/Voigtländer wound down production of the older leaf shutter -matic SLR lines by 1969.

Lenses

Although the Bessamatic and Ultramatic share the same DKL-mount with the preceding Vitessa T, there are physical differences that make Vitessa T lenses incompatible with the Bessamatic and vice versa. For instance, lenses for the Vitessa T include an aperture control ring on the lens, while the aperture control ring is fixed to the camera on the Bessamatic and Ultramatic. Other differences to the mounting lugs make the Bessamatic lenses incompatible with other DKL-mount cameras. Within the line of Voigtländer lenses, an additional physical coupling is required for autoexposure with the Ultramatics; lenses so equipped are marked with a yellow dot on the rear flange.

… excerpt ends here. Continue reading the full article.

Illustrations

Voigtländer Bessamatic and Ultramatic illustration
Voigtländer Bessamatic and Ultramatic: Top view of Bessamatic Deluxe camera with Color-Skopar X lens
Top view of Bessamatic Deluxe camera with Color-Skopar X lens
Voigtländer Bessamatic and Ultramatic: Voigtländer Ultramatic CS
Voigtländer Ultramatic CS
Voigtländer Bessamatic and Ultramatic: Ultramatic CS with Septon 50 mm f/2 lens
Ultramatic CS with Septon 50 mm f/2 lens
Voigtländer Bessamatic and Ultramatic: Bessamatic CS with Septon 50 mm f/2 lens
Bessamatic CS with Septon 50 mm f/2 lens

Worked examples

Example 1 — a first encounter with Voigtländer Bessamatic and Ultramatic

Start with the simplest possible case. Write down what Voigtländer Bessamatic and Ultramatic claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Voigtländer Bessamatic and Ultramatic before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Voigtländer Bessamatic and Ultramatic ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Voigtländer Bessamatic and Ultramatic

In research
Voigtländer Bessamatic and Ultramatic appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Voigtländer Bessamatic and Ultramatic in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Voigtländer Bessamatic and Ultramatic is common in secondary-school and first-year university syllabi. It links to neighbouring topics 135 film cameras, Voigtländer SLR cameras, so understanding it makes those chapters shorter.
In everyday life
Look for Voigtländer Bessamatic and Ultramatic outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Voigtländer Bessamatic and Ultramatic in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Voigtländer Bessamatic and Ultramatic means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Voigtländer Bessamatic and Ultramatic out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Voigtländer Bessamatic and Ultramatic in simple terms?

The Bessamatic and Ultramatic were lines of 35mm SLR cameras made by Voigtländer in the 1960s, featuring a selenium meter. It uses a leaf shutter, similar to competing SLR cameras manufactured by Kodak (Retina Reflex) and Zeiss Ikon (Contaflex SLR) in Germany, rather than the focal plane shutter al…

Why does Voigtländer Bessamatic and Ultramatic matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Voigtländer Bessamatic and Ultramatic?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Voigtländer Bessamatic and Ultramatic.

Tags

  • 135 film cameras
  • Voigtländer SLR cameras

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