RAC focus tests
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Here is a sample of images of the same scene at different
focus positions. The set is [0,68,103,130,153,173,191] motor steps. In
real life this is [11, 12, 14, 17, 20, 25, 31] mm at 1 depth of field step
size. They
happen to be with the green LED on.
000:
068:
103:
130:
153:
173:
191: