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Old 16-01-2007, 02:56 PM
Arthur Alchin (Arthur Alchin)
Honey based Meade

Arthur Alchin is offline
Join Date: Dec 2006
Location: Killarney Vale, NSW Australia
Posts: 803
cleaning DSI IR filter

Have a MEADE DSI and the IR filter appears to be a little dirty.

Doing some terestial shots it looks like some raindrops on the computer screen.

Have tried a little isopropyl alcohol 70% with a lens tissue but not sure if it has done the trick. has anybody got any simple ideas that may work.

Am going to A/ Camp at lostock this week if anyone can help.

Also 2 questions: (A) is the IR filter needed all the time ?? (B) one american source suggested replacing with a screw in IR filter to go into the end of the DSI tube. Has anybody got any thoughts on the subject?

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