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Spectra tagged with "calibrate:118415#55713"

Phone Light

gracrawf | about 1 month ago

Phone light

gracrawf | 8 months ago

filtered torch

gracrawf | about 1 year ago

Blue LED

gracrawf | over 1 year ago

Green LED

gracrawf | over 1 year ago

100W filament

gracrawf | almost 2 years ago

S3 example

gracrawf | almost 2 years ago

Na

gracrawf | about 2 years ago