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Spectra tagged with "calibrate:118415#55713"

Phone Light

gracrawf | 9 months ago

Phone light

gracrawf | over 1 year ago

filtered torch

gracrawf | almost 2 years ago

Blue LED

gracrawf | about 2 years ago

Green LED

gracrawf | about 2 years ago

100W filament

gracrawf | over 2 years ago

S3 example

gracrawf | over 2 years ago

Na

gracrawf | over 2 years ago