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    Talond's Avatar
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    Default Safe Viewing of Sun



    I have an 8 inch Mead and am planning to get some of the Baader sun filter material to make a filter for it. Then I thought could I use number 14 welding glass instead?

    My other option is to make some kind of projection screen. Mainly just for viewing the upcoming Venus transit.

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    Default

    I'll let someone else comment on the welder's glass.

    The projection method is dangerous. You are putting the full heat load of the 8" aperture through your eyepiece, which was not intended for it. Chances are it will survive, but it could be expensive if not.

    Also, if the projection screen falls down for any reason, objects (like people's eyes) behind it are at risk of damage. This is why the front-end filter is the only recommended technique.

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  3. #3
    Talond's Avatar
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    Default

    yeah I don't want to mess up the optics, I'll probably just get the Baader film.

 

 

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