[Sunfish (Ray)]

I have previously cleaned my corrector in distilled water and with a little alcohol but have never done more than dusted the mirror with a rocket blower..Not keen to do it again.

Now it seems having the reducer left on too long and some surprising condensation has led to a dirty mirror and perhaps the beginning of growth.

There are new tiny white spots and when looking in with a torch at night some very tiny shiny pinpoints. Condensation? Dust?

Worth cleaning or just go back to shorter exposures.? I also wonder if alcohol misted on the mirror would kill everything and leave no marks.

Perhaps when cooling down I should leave the corrector off and use a heater at the back near the mirror.