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Rain Drop on Star Diagonal Help needed


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Just been out for a quick session with my new Delos eyepieces ( which are great BTW Rob & Pete )

I felt a few rain drops so frantically grabbed my gear to bring it indoors

After removing my eyepiece and packing it away one rain drop managed to land on the stardiagonal mirror leaving a splat of water on the mirror


At the moment i have just left it but need advise on removing it

I have Baader fuid but remember seeing a thread saying not to use it on mirrors as its only for glass

Im guessing this is going to dry leaving a water mark

What is the best saft method of removing it when it dries


Please help if you can



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  • djpaul


  • Brantuk


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  • Bino-viewer


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15 hours ago, Sunny Phil said:

I don't find blemishes on star diagonals much of a problem but I've given up on star diagonals completely for photographic use.

I have to use mine for photography, and especially if i throw a powermate in. There's not enough out focus otherwise.

My 2" is quite good at eating up lightpath  !

Edited by Bino-viewer
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