Originally Posted by ghsmith45
One thing that works well if you can take all the optics out of the tube is to spray with blackboard paint and while it is still wet, chuck in a few handfuls of sawdust and roll round and round so the sawdust sticks to the paint. When dry, respray. Nice rough, black surface is the result.
Sounds good but I don't want to disturb the optics as everything is beautifully collimated and square.
Originally Posted by TrevorW
This might sound counter productive but try masking down the primary opening
also I found that once I sprayed the primary baffle in the 8" RC reflection artifacts of late hasn't been an issue
I think I will touch up the baffles with a Q-tip and some black blackboard spray, sprayed into the lid. It is well painted with matt paint generally but I can see some shiny edges on the baffles. So I probably only need to rub the paint on the very edge with the scope horizontal so no chance of a drip on the corrector.
Perhaps a bit of flocking in the baffle tube and perhaps in the secondary mirror housing (its also well painted though). I'll do one step at a time and see if there is a gain.