Thread: Dobsonian 8"
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Old 13-04-2014, 11:25 PM
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Allan_L (Allan)
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Quote:
Originally Posted by raymo View Post
The small dust cap is primarily meant for solar work to avoid heat build up in the optical train, which can be destructive. The sun is so bright that the small aperture doesn't matter.
...
Caution.
This could be taken the wrong way by a new user.
Never point the scope at the sun, even with only the small opening exposed.
This will cause serious eye damage.
That is, You still need a special solar filter covering the small opening.
(The eyepiece filters alone are dangerous too.)
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