Top positive review
7 people found this helpful
Excellent product for solar observation
on 23 September 2012
This product does what it says on the packet. It cuts out most of the light from the sun and allows you to view its surface safely-provided of course that you make a filter to cover the entire light capturing opening of the telescope.
I use it on my 4.5" reflector. The opening is about 6" in diameter and I made a filter to cover this. I found it almost impossible to avoid a few waves in the filter but, in the event, the slight irregularities made no discernable difference.
I am now able to see sun spots on the sun's surface but I was sorry to see that I could make out no other details. I had hoped to be able to see granulation on the surface but I could see no details of any sort apart from the sunspots. I have been told that a Solar Continuum filter used in conjunction with the Baader filter should enable me to see granulation but the filters cost about £50-£60 so I have not yet taken the plunge and bought one.