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Old 23-12-2014, 07:12 PM
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Regulus (Trevor)
Regulus - Couer de Leon

Regulus is offline
 
Join Date: Nov 2011
Location: Devonport, Tasmania
Posts: 2,349
1.25 Solar filter

Q. I have seen some solar filters that fit on a 1.25 ep filter thread, and look like an insanely dark neutral density filter.
Has anyone used one of these, and are they ok?
Someone suggested the focused heat from the sun would perhaps crack the glass, and I have to allow that possibility.
The brand is Bosma, the item is made in China so the brand may have been 'borrowed'.
Trevor
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