cleaning a corrector plate

[graham.hobart]

I have a finger mark on my edge HD with xlt coatings.
I wondered if "the lens pen" is safe to use on these or should I just ignore it and flat field it out?
Cheers
Graz

[Astro_Bot]

This came up a couple of months ago in a similar thread:

How to Get Fingermarks Off Corrector Plate (http://www.iceinspace.com.au/forum/showthread.php?t=114896)

[graham.hobart]

Cheers matey!