I am about to do some testing and want to know how stable (in terms of brightness/lumens) the light source is in the Saunders VCCE enlarger.
For example, does it warm up over seconds-to-minutes and slowly get brighter?
Is it pretty much fully bright as soon as energized?
Bearing in mind that I will expose a sheet, develop and fix it, then check it, there may be 7 - 10 minutes between sheets exposed. Should I leave the enlarger on and cover the light with a lens cap?
Tips and tricks please. Even facts to back them up!