I believe this is my first visit ever in this section!
And I guess you're wondering what I'm doing here
Because let's face it, anyone that knows me well enough will tell you I'm useless at "making" anything.
So hubby (Russ) does all the work for me on my scope as it benefits him greatly- because as I've said plenty of times before- he prefers me out of the house than in.
Please could you tell me if this solar filter he made is safe?
I think it's a pretty good idea that he came up with but as I couldn't find anything like it on the internet, I got a bit concerned whether it was safe.
Here's what he did on my 10" dob.....
He got two DVDs, measured and cut out the hole in it to make it bigger (60mm) using his Lathe (boys and their toys
He chose DVDs because he thought they'd be stronger and flatter than cardboard.
He then inserted the Baader Solar Film between the two discs. The film doesn't measure out to the full size of the disc- about half way out. He stuck sticky tape down across a 3 points on the disc to hold the disc sandwich together. It's nice and firm.
He then used a black marking pen to blacken the edge of the discs.
He then got the dust cover (the one that covers the tube) and drilled 3 holes in it and then inside the cover he fixed fly screen clamps to it.
The film is mounted inside the cover, sitting under the little aperture stop down cap.
The fly screen clamps keep the filter firmly in place.
(1) Is this safe?
Should I completely seal the outside of the disc with tape all around the discs?
I worry that there might be scattered light going out of the edge of the disc & reflecting back at me (even tho it's well sandwiched together).
(2) Is a DVD safe to use with this film?
(3) Today I gave it a quick whirl and I found the sun a bit bright
but certainly not uncomfortable- I was a bit nervous not ever looking thru a solar filter before, so I don't know If that's normal or because of scattered light reflecting back at me.
(4) A couple of times I also got a purple tint
on the sun- what would that be?
Boy my first view of the sun was fabulous- there were so many sun spots!! But I didn't view for long as I thought it best to check with you guys if my solar filter is a go-er!
Thank you to all that go to the trouble of helping me.