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Solar filter for my Astroscan?

Started by bgprest, 04/10/2008 04:45PM
Posted 04/10/2008 04:45PM Opening Post
I'd appreciate recommendations on a solar filter for my trusty Astroscan. Would it (or should it) be an eyepiece filter or something that fits over the end of the scope? How much would I need to spend to get an acceptable one for my Astroscan?

Thanks,

Brian
Posted 04/10/2008 06:45PM #1
In general, you should avoid filters at the eyepiece for solar viewing. They can break quickly and catastrophically, causing blindness. (or so it is often described--I've never seen it happen, but I know of nobody who has used one.)

Your best bet is a piece of baader solar film. YOu can make a holder for it to fit snugly over the front of your scope for roughly thirty dollars, max, I should figure.

Alex
Posted 08/31/2008 12:09AM #2
Oh dear, eyepice solarfilter. Are they still avaiable :C Never use such a thing. The sunheat will easely make them crack and an ever so slightly solarbeam will damage your retina and cause blindness on your "observing eye"
You must have a safe Solarfilter that blocks the sunlight before it enters the optical path; that is a filter that fits over the front of your scope. This is not an advice what solerfilter to get for your Astroscan, just a WARNING: don`t use any kind of eypiece solarfilter!!!!!
For my Solar observing with my ST80 I use a Baader filter in a cell that fits safely on the dewshield.

Happy Solar Observing,
Magnus
Posted 09/04/2008 01:57PM #3
I use a Roger Tuthil Press-on Solar filter. Works fine.

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