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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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CAMERA LENS TESTING xx CAMERA LENS How to perform your own lens test by photographing a Paterson Optical Test Target #2. Testing lens color. How different lenses and their coatings affect your color prints and slides. Testing resolution. Improve print sharpness by determining the resolution of your camera lenses at all aperture settings. Calculating a format's circle of confusion, a lens' hyperfocal distance, and the near and far depth-of-field limits are explained. Large format lens testing. Part 1. Using your camera and a few simple tools to test lenses by direct observation. Part 1. Setting up and testing the field flatness. Large format lens testing. Part 2. Testing astigmatism. Large format lens testing. Part 3. Focus shift and spherical aberation. Tips on testing a camera lens and using a camera lens on an enlarger. Understanding resolution. Test procedures help determine the maximum photographic resolution that can be obtained. Part 1. Lens, film, and paper. Understanding resolution. Part 2. Using MTF (modulation transfer function) to determine which lens will give the best performance. Advice on what is involved in testing lenses and film for resolution, contrast, color, edge-to-edge recording, sagittal and tangential capabilities, metering accuracy, and film speed. Using resolution charts. Part 1. Basic tests for all formats. (1) Checking a camera's focus. (2) Lens, film and steadiness testing. Using resolution charts. Part 2. Enlarging losses and other tests. Simple test to determine the sharpest f-stop setting for an enlarging or camera lens. How to check the distance calibrations engraved on lenses for 35mm SLR cameras. Large-scale resolution targets. A method and data reduction tables for determining the resolution of camera systems under typical field conditions. Putting 35mm lenses to the test. Advice on selecting and testing lenses. Tips on testing and controlling lens definition. Deals with camera shake, depth of field, focusing techniques, etc. How to test your camera lenses. How to test your lenses. MP's proven method for testing camera lenses. Test kit of charts plus a 20X magnifier costs only $4. Testing a lens using a reticle. System for testing zoom lenses quickly, easily and with guaranteed results. A description of MP's method to test camera lenses. The procedures are illustrated and described. Needed set of charts and magnifier are available for $4. How to test camera lenses. Test your lenses using the Modern Photography technique. Testing your lenses using the Modern Photography technique. How to check your own lens for color faults. How to do the Modern Photography test for lenses. Resolution target placement for various length lenses and film sizes are illustrated. What causes light falloff (vignetting) in corners of pictures? A look at the tests performed on several lenses plus tips on checking your own lens. Field test your lenses. Description of Modern Photography's complete procedure for putting your own lenses to the test and analyzing the results. Tips on selecting and testing "off brand" lenses. Building and using a one-shot 3D resolution test setup. A simple wooden "Stair-step" jig holds seven resolution charts at various depths within a 19" deep field. Large-format lens testing theory, plus a practical test for large-format camera lenses. Bokeh (from the Japanese, meaning out-of-focus blur). A look at the compositional and lens-quality-assessment role of those portions of a photographic image that are not in focus. How to test your lens system. A step-by-step guide to help you determine if the lenses you've got are the lenses you need. Lenses. Part 6. Evaluating your lenses. Discussion on the means and meaning of lens testing. Lens faults and how to spot them. How to test a camera lens. Secrets of a successful testing program. The fight to conquer camera flare. Testing lenses for flare. Contrast: how it relates to resolution and how Popular Photography's lab measures it when making lens tests. Deficiencies in depth-of-field scales on some 35mm SLR lenses is viewed. Includes a technique for checking out maximum depth of field. Subjective quality factor. A new way to test lenses. Description of Popular Photography's latest lens-testing procedures. Tips on testing zoom lenses with macro abilities. How to test your lens for sharpness, distortion and flare. How good a lens do you need, and how can you tell if you've got it? A modern lens testing procedure that considers both resolution and contrast. Simple, practical test to compare the sharpness of two (or more) lenses. Tip on testing a 100mm macro lens by photographing a section of newspaper page. Tips on determining the correct stacking order for close-up lenses on your camera. How to read a Popular Photography lens test. Lens flare, ghosts, and light falloff. The cause, cure, and importance of 3 abnormalities which are often cited in lens test reports. Best how-to tips for testing a lens. How to determine if your zoom lens stays in focus while zooming. Popular Photography magazine's lens testing procedures are explained. Comparative test of three eras of lenses (1893, 1955, 1994). Buying used lenses. How to find a treasure in the secondhand market. How to test the lens before purchase. How to test lenses for sharpness using a resolution target. Technique for checking for surface defects on individual lens components. | |||||||||
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