I’ve always been relatively happy with this app as it comes, but tonight I decided to try and calibrate it using a homemade “optical spectrograph” made using the in-app guide and 1:1 scale downloadable template.
I’m honestly surprised by the results, relative to people’s Opple-gotten measurements.
Worth a pop if you were wondering about any of your lights and can’t get your hands on an Opple or the like.
by Away_Tea_8414
