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Manual Leica APO-TELYT-R

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  • Leica APO-TELYT-R - page 1

    Leica R-Lenses Sept ember 2003 Chapt er 3: 1 80 mm and 280 mm lenses __ LEICA APO-ELMARIT-R 1 80 mm f/2.8 __ LEICA APO-TEL Y T -R 280 mm f/4 b y E rw in P u t s ...

  • Leica APO-TELYT-R - page 2

    Chapt er 3 Leica R-Lenses 1 T elephot o lenses hav e a long tradition at Leica. The first 20 cm f/4.5 T elyt lens was introduced as long ago as 1 935 for the Leica rangefinder camera. An additional mirror reflex housing was required for the accurate determination of t he field of view and the focus. This 200 mm lens was designed for landscape work, ...

  • Leica APO-TELYT-R - page 3

    Chapt er 3 Leica R-Lenses 2 In 1 975 Leitz Canada designers computed t he 1 80 mm f/3.4 Apo-T elyt-R lens for scientific purposes that required a very high information content. It is a seven-element syst em with four groups, corrected for the infrared region and it perfor ms best at infinity. At the same time Canon introduced a new 300 mm f/2.8 len ...

  • Leica APO-TELYT-R - page 4

    Chapt er 3 Leica R-Lenses 3 In 1 993 the 280 mm f/4 Apo-T elyt-R was introduced. P er for- mance was improved, especially in the out er zones; the weight was reduced to 1 8 75 grams (66. 1 ounces) and t he price ratio of 4.8:1 was much better . In terms of per formance, both new lenses, t he 1 80 mm f/2.8 Apo-Elmarit-R and t he 280 mm f/4 Apo-T ely ...

  • Leica APO-TELYT-R - page 5

    Chapt er 3 Leica R-Lenses 4 With these considerations it is possible to create and define the image effects that y ou want. If the main subject is encircled by objects in the fore- and bak- kground, you can visually emphasize t he relationship betw een the subjects and even make it appear as threatening, as is the case with cars that seem t o colli ...

  • Leica APO-TELYT-R - page 6

    Chapt er 3 Leica R-Lenses 5 Atmospheric turbulence and heat wa ves can destro y the image quality at t hese large magnifications and one needs a skylight filter with color film and a medium orang e filter with black -and- white film. The discussion often arises as to whether a lens can be t oo sharp, a question t hat is certainly relevant for both ...

  • Leica APO-TELYT-R - page 7

    Chapt er 3 Leica R-Lenses 6 Flare and secondary images are absent and specular highlights in the blazing sun are free from halo effects. Vignetting may be visible under critical circumstances (wide open), but it is eliminated at f/5.6. Distortion amounts to 1% in the comers and may be visible when one pho tographs geome tric figures (architectural ...

  • Leica APO-TELYT-R - page 8

    Chapt er 3 Leica R-Lenses 7 The diverging cur ves at 40 Lp/mm for sagittal and tangential lines is of no relevance in practical phot ography . This reduction in contrast can only be computed; it is not visible in real life. This behavior indicates that the lens earns highest scores for color correction. The ‘ APO’ designation is well deser ved. ...

  • Leica APO-TELYT-R - page 9

    Chapt er 3 Leica R-Lenses 8 Even so, the optical quality of the 280 mm lens is higher . Here we can detect the limit of the MTF graphs when w e restrict our- selves t o 40 Lp/mm as the highest frequency. There are sound arguments for t his limit, but when dealing with v er y high perfor- mance lenses, t he information may no t be as w e want it to ...

  • Leica APO-TELYT-R - page 10

    Chapt er 3 Leica R-Lenses 9 Y ou will have t o find subjects that have e xtremely fine details t o start with, and then you must tak e pictures at quite a large distance, because y ou need a high value of negativ e magnifica- tion, and t hen you must enlarge the tiny negative to big propor- tions. This places the imaging chain under heavy strain. F ...

  • Leica APO-TELYT-R - page 11

    Chapt er 3 Leica R-Lenses 10 __ Summar y In the roaring twenties there was a 540 SSK Mercedes Benz sports car with a turbo-charg ed engine. The turbo charg er could only be used for a few minutes, other- wise it w ould overheat the engine. But the driving e xperience was breathtakingly exilarating. Both the 1 80 mm f/2.8 Apo-Elmarit-R and t he 280 ...

Manufacturer Leica Category Camera Lens

Documents that we receive from a manufacturer of a Leica APO-TELYT-R can be divided into several groups. They are, among others:
- Leica technical drawings
- APO-TELYT-R manuals
- Leica product data sheets
- information booklets
- or energy labels Leica APO-TELYT-R
All of them are important, but the most important information from the point of view of use of the device are in the user manual Leica APO-TELYT-R.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Leica APO-TELYT-R, service manual, brief instructions and user manuals Leica APO-TELYT-R. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Leica APO-TELYT-R.

Similar manuals

A complete manual for the device Leica APO-TELYT-R, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Leica APO-TELYT-R by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Leica APO-TELYT-R.

A complete Leica manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Leica APO-TELYT-R - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Leica APO-TELYT-R, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Leica APO-TELYT-R, that we can find in the current document
3. Tips how to use the basic functions of the device Leica APO-TELYT-R - which should help us in our first steps of using Leica APO-TELYT-R
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Leica APO-TELYT-R
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Leica APO-TELYT-R in a specific country, if it was not possible to solve the problem on our own.

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