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Rollout photography

Rollout photography 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 Rollout photography rather than just read about it. In short: Rollout photography, a type of peripheral photography, is a process used to create a two-dimensional photographic image of a three-dimensional object. This process is the photographic equivalent of a cylindrical map projection in cartography.

Rollout photography — main illustration
Rollout photography — illustration

Key takeaways

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

Reference excerpt

Rollout photography, a type of peripheral photography, is a process used to create a two-dimensional photographic image of a three-dimensional object. This process is the photographic equivalent of a cylindrical map projection in cartography. It is used predominantly for the projection of images of cylindrical objects such as vases or ceramic vessels. The objective of this process is to present to the observer a planar representation of the object's characteristics, most notably the illustrations or artwork extant on the outside surfaces of such vessels. This planar representation is captured using photographic imaging techniques.

Technique In the basic technique, using strip photography, a camera with a vertical slit aperture is positioned opposite a turntable on which an object is centered. Both the object and the camera are oriented as precisely as possible so as to eliminate aberrations due to the focusing mechanism of the camera, the aperture, and the characteristics of the object itself. As the object is rotated on the turntable, the film is exposed in small intervals corresponding to the dimensions of the aperture. Since the image is projected onto the film backwards and upside down, the turntable spins in the direction opposite of the direction of the film advance mechanism.

History In 1972, Justin Kerr worked with author & anthropologist Michael D. Coe to produce a book on ceramic vessels of the pre-Columbian Maya civilization. For this book Kerr had to photograph the ceramics section by section, and then have an artist combine the pictures into one. Since this was slow and did not accurately reproduce the images on the pottery, Kerr set out to find a technique that would make a single, fluid picture. However, at this time no cameras existed that were capable of making peripheral photographs. Therefore, from 1972 to 1978, Kerr created a new camera and essentially reinvented the art of rollout photography.

The technique had existed for years, so by using the methods listed above Justin Kerr succeeded in making a camera that captured the first Maya pottery vessel using rollout photography. The rollout technique was perfected through the use of a record turntable, clamps, and various pieces of wood and belts. The result was a clear and accurate reproduction of a tin can. From there Kerr moved on to Maya vessels. Each vase takes about two minutes to photograph, and is done all in one session. Kerr spends on average 6 hours a day in his studio working on Maya rollouts. Subsequently, Kerr began archiving every container he photographed. To date more than 1400 rollouts have been created. His first successful print was of an Olmec bowl, lent to him from Princeton University.

See also Photography Outline of photography Image editing

References

External links "Principles of Peripheral Photography", Andrew Davidhazy (Articles) "Vase Rollout Photography Using Digital Reflex Cameras", Ángel M. Felicísimo "Peripheral Portraits: An unraveled view", Paul Krzyzanowski

Worked examples

Example 1 — a first encounter with Rollout photography

Start with the simplest possible case. Write down what Rollout photography 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 Rollout photography 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 Rollout photography 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 Rollout photography

In research
Rollout photography 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 Rollout photography 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
Rollout photography is common in secondary-school and first-year university syllabi. It links to neighbouring topics Photographic techniques, Science of photography, so understanding it makes those chapters shorter.
In everyday life
Look for Rollout photography 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 Rollout photography in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rollout photography 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 Rollout photography out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rollout photography in simple terms?

Rollout photography, a type of peripheral photography, is a process used to create a two-dimensional photographic image of a three-dimensional object. This process is the photographic equivalent of a cylindrical map projection in cartography.

Why does Rollout photography 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 Rollout photography?

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 Rollout photography.

Tags

  • Photographic techniques
  • Science of photography

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