Used my phone's camera to capture the preview through the focusing lens of an old Ricohflex twin-lens reflex camera. The image's optical path involves a lens, a mirror, a ground-glass screen, a lens, and (finally) the phone-camera lens.
-Handheld, totally auto ...
-RGB and Blue Curves
-Resize
-Crop a little from left and right
-USM at 66%/0.6 dia/TH = 5 (applied twice)
-SaveAs JPEG at 99% quality = 268KB
File: Preview_0924141200a-DPCusm99
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