RASC Hamilton [ Special Announcement] Transit of Venus - June 5

[Mark Kaye]

On 12-5-12 3:26, rjshields at sympatico.ca wrote:
> I have a 90mm refractor with a solar filter that threads into the 
> eyepiece. I can bring it to the gathering. Have used it over the years 
> for solar observations and eclipses. It is what got me interested in 
> the stars in the first place. Hate parting with an old friend.

    This type of solar filter is dangerous and should not be used.  The 
only method of solar viewing that is safe has the filter in front of the 
telescope.  The heat generated by the Sun hitting that filter will cause 
it to break and allow the Sun through.  Please do not use this eyepiece 
filter.

-- 
    Clear Skies!
                MK

http://www3.sympatico.ca/mark.kaye/index.htm

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