Celestron – EclipSmart Safe Solar Eclipse Telescope Filters – ISO 12312-2 Compliant – Works with Existing 70mm Telescopes – Observe Solar Eclipses and Sunspots – Safe, Snug Fit – Natural Orange Tint

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.

Great item did exactly what it was attended for.

Perfect fit for my RedCat 51!

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 bought 2 of them because they fit perfectly my 10x50 Bushnell binoculars. That way I can clearly see sunspots on the Sun! I firstly used it on April 8 to watch the eclipse... now, because of the strong solar activity of 2024, sunspots had been visible almost the whole year!