Richter Cine Collimators and Test Projectors
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Richter Cine manufactured a series of collimator objectives. The most commonly seen are 60mm through 254mm. The following is a list of all the available objectives that I know of. I don’t have part numbers beyond 500mm and I believe the 650mm and longer objectives were special-order.
Richter Cine Collimator Objectives:
Focal Length f# Description Test Lens Range Richter Part No. 60mm ? refractor 6 – 30mm 117 130mm ? standard equipment for R2F 13 – 65mm 118 180mm ? refractor 18- 90mm 119 254mm f4.9 standard equipment for R2A and R2B 25 – 127mm 120 500mm f9.6 refractor 50 – 250mm 121 650mm f10 refractor 65 – 325mm – 1000mm f11 Maksutov-Cassegrain mirror lens, 200mm tube length 100 – 500mm – 1250mm f10 Schmidt-Cassegrain mirror lens, 275mm tube length 125 – 625mm – 2000mm f10 Schmidt-Cassegrain mirror lens, 425mm tube length 200 – 1000mm –
“The rule of thumb is, to obtain the optimum collimator test image, the range of any lens to be tested should have a focal length not less than 1/10th or not more than 1/2 the focal length of the objective.”
Source: Instructions for Use of the Richter Cine Equipment Reflex Autocollimator Model R-2 ©1961 Richter Cine Equipment
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Last update: 2/16/16