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Grzybowski collimator
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03-08-2020, 08:45 AM
Sunfish
(Ray)
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Join Date: Mar 2018
Location: Wollongong
Posts: 1,909
Very interesting device. I tried to make a collimating scope with an old lense but I could not sort out a light source. Is the placement of the led critical in relation to each other and the centre ?
Sunfish
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