Solar viewing with an ED80

[RKenning]

Hi everyone,

Just wondering if is possible , with the right filters, to view the sun through my Skywatcher ED80? If so, what filter would I need to get.
Many Thanks for any advice.

Rob in Armidale.

[Eldest_Sibling]

There are, generally, three types of solar-filters, and examples listed here from the cheapest to the most expensive...

White-light... https://www.ozscopes.com.au/skywatcher-solar-filter-80mm-telescope.html

That one fits over the lens at the front of the telescope, and is the usual choice for most.

Herschel wedge... http://www.andrewscom.com.au/site-content-section-10-lunt.htm

That one fits at the back of the telescope, like a star-diagonal. Scroll down to the Lunt Herschel wedges, and in 1.25" and 2" sizes. A Herschel wedge is an enhanced form of white-light solar observing, offering a bit more sharpness, and contrast perhaps. Out of an abundance of caution however, I would use one only if the telescope is all metal, specifically the focusser, and the lens-cell(which holds and retains the doublet-lens) at the front.

H-alpha solar: https://skyandtelescope.org/observing/guide-to-observing-the-sun-in-h-alpha092321050923/

Then, there are also telescopes that are dedicated solely to H-alpha solar observations, and are rather costly.

Then, still, there is Baader's solar-film(white-light) sold in sheets of varying sizes, and whereby you can make your own filter; for customisations.

Always practice the utmost in safety when viewing our closest star.

[RKenning]

Many thanks for the info Alan. I will try Option 1 for starters.

Cheers Rob

[Eldest_Sibling]

Hi Rob,

Yes, that's the one I'd probably choose as well. I have a sheet of the stuff, to make my own for a telescope or two, but I've had it for a while and I'm wondering if it's still safe to use.

The Sky-Watcher filter appears to snap on, perhaps. In any event, it must be attached most securely, in case the winds blow, or if other forces attempt to dislodge it, during use.

[RKenning]

I would feel a lot safer having the filter at the front rather that an eyepiece filter so that the tube and elements don't get exposed to the full sun. Thanks for your info, it's a great help
Cheers Rob