borgs

Thanks M40, Cosmic Geoff and LDW1. I've always been quite anxious around optical surfaces - have always put a skylight filter immediately on any SLR lens I've purchased. My anxiety was made worse when I forgot to let my Meade LX10 dry out after a session and put it away for 6 months - yes, etched mildew on the corrector plate. 😞 But I don't protect my binoculars so I think I'll do the same with the Seestar and rely on the heater - and ensure I let it dry out when I bring it back into the warmer house!

Hi, I'm about to purchase a Seestar S50. Interested to know how you got on with using the clear focusing filter as a protector and if you are still using it. Cheers.