REPAIR & TROUBLESHOOTING - How To Test Lenses
This practical repair and troubleshooting guide presents a straightforward methodology for testing camera lenses without expensive laboratory equipment. The approach applies proven optical principles to deliver objective lens evaluations comparable to those performed by Modern Photography's technical staff. You'll learn to interpret resolving power test charts using the USAF 1951 target, position test targets correctly for your camera format (35mm, medium format, or large format), and organize test materials efficiently. Detailed diagrams (A, B, C, and D) specify the required distances and arrangements for testing lenses from 50mm to over 400mm focal lengths. The kit includes a precision glass master target manufactured by W. & L.E. Gurley Engineering and Scientific Corp., purpose-built for resolution testing. Recommended magnification levels (20X to 30X) are provided for accurately reading results. This service guide serves as an essential reference for photographers seeking objective verification of lens optical performance.
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Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 28
- Size
- 11.4 MB
- Category
- Photography