Filter thickness test
the lighter green ones (also slightly shorter exposure) of each pair are from the 1.5mm thick UG5, the other 2mm UG5. UG5 simulates insect vision, so instead of trying to use photoshop to combine different channels, we can get this photo in one step. WB can be tricky and it is a bit greenish here. Shot with full spectrum modified Panasonic DMC-G5 and a S8612 filter (1.75 mm, which blocks IR).
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