Darkroom Safe Light

[denverjims]

Longer wavelength, not shorter. Blue is short, green is middle, red is long.

Hey Eric, I think you misunderstood what I said. To say it another way, if the light source's shortest wavelength output is greater than just under 600nm, it is safe per Harman Ilford specs.

My use of 'lowest' might have thrown you off. My apologies for not doing better. Should have just quoted:

From the Multigrain FB Classic Tech Sheet from Harman: "Use an appropriate safelight with a cut-off of no lower than 580nm – either a dark brown or red type."

Again, like I said though, the 'safe' light you use is dependent on the paper you print on.
Best, Jim