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Lenses and Optics Pixels: On the relationship between image pixels, camera pixels, and resolution. LCD Magnifiers: Some suggestion for those who find LCD screens difficult to see. Lenses and Ports: (FAQ). Lens Ports: Correcting for Lens Distortion and Chromatic Aberration using Software. Comparison of M67 wide-angle lenses Epoque, Inon, UN, Sea & Sea. (using the Olympus C-5050 as a test platform). Wide-Angle experiments with the Olympus mju 410 camera. Epoque, Inon, UN, and Sea & Sea lenses operated at f/3.1. Inon UWL-100 information. Inon UWL-105AD information. Refraction and Snell's Law. Determining the angle of coverage of a lens. Polarisation of light. Useful links: Secondary focal point of a dome port: http://scubageek.com/articles/wwwprim.html . Dick Lyon's Photographic Technology Lectures: http://dicklyon.com/phototech/ . .

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