Telescope Mirrors FAQ Archives

What does “Ion Milled” mean when refering to telescope mirrors?

Thursday, July 28th, 2011 at 4:21 pm

Comments (100)

I have been window shopping RCOS telescope's webpage. All their scopes like $15,000 - $300,000.

They say they are "ion milled" what does that mean?
*referring

Deluxe Laser Collimator to align your Telescope Mirrors
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US $49.50

Takahashi Epsilon 160 No 92046 Hyperbolic Astrograph Mirror Telescope
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US $3,300.00

CSTAR OPTICS 45360 76MM REFLECTOR TELESCOPE 360 ROTATING WARRANTY 45 MIRROR
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US $5.99

What to clean Orion telescope mirror with?

Saturday, June 18th, 2011 at 10:21 pm

Comments (6)

I always keep the caps on the focuser and the tube but my mirror is starting to look kinda dusty. What do you clean your mirrors with. I was just thinking windex but I don't know exactly what the mirror on my xt10 is made out of and if windex will be corrosive make it loose its reflectiveness. What kind of material should i wipe with to keep my mirror perfect.