So if the clouds leave us alone I have devised my method for viewing and photographing the eclipse.
I bought a 4x4" Thousand Oaks (ISO Certified) sheet of solar film on Amzn. Though I considered taping it to my Sigma 150-600mm C and shooting my 5dIII, I decided that magnification is king and that I'd be better off using my Nikon spotting scope and digiscoping the shot with my iPhone 7, shooting in DNG via Lightroom mobile. I have some Lunt Solar Systems (also ISO certified) viewing glasses arriving in the mail today.
I've already tapped the sunshade into place so that it wont jostle/wiggle around and inadvertently bump the filter off, but how would you mehcanically inclined folks secure the filter to to the end of the scope? I'm thinking of just cutting off the corners to complete the filter into a circle and just taping it around the edges of the sunshade. Wondering if there might be a more secure way that wouldn't leave the filter covered in tape residue and cut up. Suggestions?