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Joint Photographic Experts Group Image  |  2000-09-11  |  27KB  |  205x401  |  8-bit (256 colors)
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OCR: cardboard diaphragm the same size S1 3UR mirror hole. Typical zonal diaphragm of parabolic mirror asm the center the foca length 01 rmediat zone should be and the focal should be 101 fee focus cent inches the lat 96 anc rim 047. n dimension (96) need not De preciscly mea sured mirrory