Count Funkula knows what he speaks...
Yeah, I forgot to warn you. The grating position looks fine. The offset is best fixed in software. Do not try moving the grating.
Your choice is sliding the scale, if their software permits that. Or a Polynomial Cal using multiple sources, math, and a very, very, good wavelength table. Any place at the edges in the table, where you do not have a source, would result in errors at the ends of the scale. For most people, when self calibrating, that is at the red end, which is why I keep a specialized hene with multi-line optics around. Neon lamps of the indicator variety make good sources for orange-red-IR, but the issue is indexing them as their spectrum is very complex.
Steve
Last edited by mixedgas; 02-22-2024 at 12:19.
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...