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Add X-Y adjustment section

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Matt McWilliams 2022-07-26 15:01:47 -04:00
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NOTES_ON_OPTICAL_PRINTER_TECHNIQUE.md
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@ -225,4 +225,10 @@ On simple optical printers the only lateral adjustment is of the lens (rather th
This is geometrically adequate.
But the J-K adjustments are even too flimsy for a lens.
It helps, after they are set, to gently tap the lens, so it finds a stable position, and then to readjust if necessary, etc., etc.
It helps, after they are set, to gently tap the lens, so it finds a stable position, and then to readjust if necessary, etc., etc.
## EXACT 1:1
The lateral movements of the lens, the to-fro movements of the lens and camera, and a tilting of the camera (if necessary) allow the optical printer to be set for exact 1:1 reproduction.
Then the printed image is the same size and in the same position as the original image.
If the printer lacks a tilt adjustment the camera may be shimmed.