Technical Appendix
This technical appendix is regularly updated.
Last update: december 2011.
To realize the illustrations of this technical appendix, rays tracing is computed by the trigonometrical method (Snell-Descates’ law - without any approximations), using the data taken from the quoted documents. Although limited to meridional plane calculations, this method, once adapted to the case of infinite radii surfaces (plane surfaces) and to the case of light traveling from right to left (it happens with some fisheyes), allows excellent accuracy rays tracing. Therefore, it is a very efficient tool for the understanding of optical systems operation.
The Flash Player animations require a 1200-pixels-wide screen. They can be enlarged by stretching their lower right corner with the mouse.
• Focal Length and the Magnification.
• Telephoto Zooms Lenses.
• Fisheyes.
• Short presentations including:
• 01 Depth of field.
• 02 Nikkor 135mm f/2 Ais and 135mm f/2.8 Ais.
• 03 Reflex-Nikkor 500mm f/8 Ai.
• 04 What is the maximum aperture consistent with the Nikon F-mount?
• 05 Micro-Nikkor 55mm f/2.8 (Ais and AF).
• 05a Effect of the CRC system of both Micro-Nikkor 55mm f/2.8 (Ais and AF) on their focal length.
• 06 AF Micro-Nikkor 200mm f/4D IF-ED.
• 07 AF-S DX Micro-Nikkor 85mm f/3.5G ED VR.
• 08 Working of a single-lens-reflex camera.
• 09 Anatomy of a modern lens.
• 09a - Synchronized motions.
• 09b - The piezoelectric motor with progressive wave.
Others will be translated into English soon…
Nikkor 85 mm f/1.4 (Ais model).
Nikon's shortest (but fastest) ”telephoto” lens - Study based upon the data of US patent n° 4,396,256.
Mouse out: outside.
Mouse over: inside.