Hello,
In regards to testing the polish of a mirror surface, I watched Gordon Waite's youtube video "testing the polish on a 20-inch F3...". The test looked great, but no info on the strength of the laser I should be using.
Priced between $19-$40 for cheapies on the web and .1, 1, 3 and 5mw laser power rating.
Is there any point in getting the green laser at 532nm?
What Mw rating/power level should I get?
Can the laser be used for other optical tests?
Thanks
Steve
https://www.youtube.com/watch?v=gM6G398dy7I