[JimmyH155]

The JimmyH mirror dust N blemish test

Being the proud owner of a 12” Lightbridge and being fearful of dust, last weekend I looked into the mirror and was horrified to see specks of dust and blemishes all over the mirror. I immediately marked it down for another clean this next weekend.
However, the sky here in Brissy was so magnificent last night, that out came the scope which I trained on Eta Carina. What magnificence I thought, all those countless bright stars that I could not fit into the EP field of view.
But Oh dear, how much better would have been the sight if only my mirror was perfectly clean. ..
Then I came up with a plan – lets test the mirror with a large simulated “blemish”.
So I stuck out my index finger and held it in the middle of the light path, and then looked through the EP. No difference. Stuck out 2 fingers. No difference. Then I stuck into the light path my whole hand – perpendicular to the light path. All the stars were still there – just a tad dimmer this time. That was all – a whole hand …. So what does this prove????
DON’T WASTE YOUR TIME WORRYING ABOUT HOW DIRTY YOUR MIRROR LOOKS, do the JimmyH dust N blemish test (pat.pending) and prove to yourself that a few blemishes and dust on your mirror make not a SCRAP OF DIFFERENCE!!

HA No more cleaning for me!!!