EclipSmart Safe Solar Eclipse Telescope Filter – Meets ISO 12312-2:2015(E) Standards – Works with Existing 70mm AZ & EQ Telescopes – Observe Solar Eclipses and Sunspots – Safe, Snug Fit

Bought it for the 2024 eclipse, worked pretty well. It attached easily to my budget telescope and I did not go blind while staring at the sun through it, so I count it as a success.

Works great for viewing the sun safely with my 70AZ. Seems overpriced for what you get though... just a plastic cap with the same kind of solar film as those cardboard eclipse glasses. For $25 I'd feel better if the filter was made of plastic. The film works, but it's cheap and fragile. One accidental bump and you'd likely ruin it.

I'm not blind yet, so the filter clearly works quite well. What doesn't work as well are the attachment thumbscrews. They're cheap plastic, and break incredibly easily. Luckily my 70mm refractor makes for a Snug Fit without the screws, but that could cause a huge (and dangerous) issue for telescopes that are smaller. The screws need to be swapped for metal ones.

Purchased this for our Celestron astromaster 70 AZ telescope and it fit and performed perfectly. We were able to get some cool pictures of the eclipse.

Got to try to watch the Eclipse, but didn't really work out so good. For a general purpose item like that this attaches via the screws, they probably should have selected much longer screws, to allow fitting on a broader range of units. This isn't really a defect, I can't say it's a bad unit or poorly made, it just didn't fit or work right for my size telescope.

Used it on telescope and camera for eclipse.

1) doesn’t fit the telescope it says it does. 2) actual viewable area is a small diameter circle in the middle of the lens. Other solar filters I’ve had are full diameter of the telescope lens so much easier to use/see/focus. Only kept it becasue no time to get another before the eclipse. I will be replacing it with something else.

I bought this last minute hoping it would fit me telescope, but it didn't; however, I was able to use it just fine without a telescope