Reducing Reflections On The Supernewt Mirrors

[Catanonia]

The mirrors on the F2.8 SuperNewt needed a clean again and whilst the weather is bad, I decided to reduce the reflections on the mirror edges at the same time.

A couple of pictures showing the nerve racking job of applying pernament black marker to the edges of the secondary and primary mirrors on the 8 inch scope.

All back together now and just need to Cats Eye colimate tonight

[Spikey]

Missed a bit

[Catanonia]

Missed a bit

LOL

[laser_jock99]

Those edges do look a bit shiney don't they? I would be interested to see if this makes muche difference.

Incidentaly - what's that yellow marker in the middle of the primary, some kind of collimation target?

[Catanonia]

Those edges do look a bit shiney don't they? I would be interested to see if this makes muche difference.

Incidentaly - what's that yellow marker in the middle of the primary, some kind of collimation target?

Yes it is the Cats Eye colimation radiation symbol for precise colimation at low F stops.

They were very shiney, and the secondary was unpainted completely. Not sure what if any difference it will make, but since it was raining and the mirrors were out

[Gina]

When I saw the thread title I thought to myself "but mirrors are supposed to reflect"