Celestron – EclipSmart Safe Solar Eclipse Telescope Filter – Meets ISO 12312-2:2015(E) Standards – Works with 5” Schmidt-Cassegrain Telescopes – Observe Solar Eclipses & Sunspots – Secure Fit

This product works well. It fits my CPC 800 perfectly. It come with Velcro tabs for safety backup but it fits very positively, snapping in place. The only negative is that it is a fairly thin film of plastic so keep the original box to keep it stored in. If you left it out it could be torn if miss treated. The box fits nicely. Viewing was fine.

It fit on my Celestron perfectly and made photographing the eclipse so much easier than a homemade solar filter. I only regret that I won't be able to use it for another 20 years.

El producto vino correctamente resguardado. Pero, me gustaria que el producto de celestron venga con una caja o estuche específico del producto, pues vino en resguardado en isopor, el filtro estaba en un plástico con cierre magnético y considerando que es algo frágil un estuche para guardar en casa no estaria mal.

I had tried in vain to find a solar filter for my Nexstar 6/SE for several years, but could only locate 8" filters. Celestron seemed to be perenially out of stock. I really liked the fit of it and think it could work without the included velcro, though I still use them for greatest safety. I wish the cover that was included with my Nexstar fit as snugly (it won't stay in place at all) and I am going to need to find some velcro to hold it on. I would suggest this filter could use one of two possible improvements owing to the fact it is delicate. Either ship it with a fitted case to protect it when not in use, or build it so the telescope cover could fit on it while mounted to the scope. As it is, I had to keep the cardboard it shipped in for storage.

I didn't bother to use the velcro adhesives as there is a retention springy element to the bezel that naturally grips the telescope. Image quality of the sun is great. The lens is solar foil, so I'll be keeping mine in the cardboard box that it came in. The box is thick enough cardboard and compact enough to reasonably do this for a long time.

This is one of several products I ordered by mistake. I stupidly thought any 8 inch could fit an 8 inch. I immediately started looking for a new one. Everything was either outrageously expensive or everything in this price range was of terrible quality. So I found a way to rig this one to my telescope anyway. (DISCLAIMER: Do NOT try this at home unless you ABSOLUTELY know what you are doing! The slightest mistake can result in permanent blindness and it's gonna hurt like crazy the whole time it's happening!) That being said, if you own a scope that this solar filter will fit, then THIS is the solar filter you want! (Which is why I chose to keep it). The only solar filters better than this are the high quality glass ones because of their durability and the cost is 3-4 times more. But as long as you take care of this one and don't scratch it, there's no better solar filter in this price range. I would recommend one of those foam pick and pack cases to put it in. Then there's no reason this one won't last a lifetime and there's no need to invest in a glass one.

The shipping was fast and the filter arrived undamaged. The filter was very easy to use and attached similar to the protective cover that comes with the telescope. The images produced from the filtered scope were very nice and I was happy with them for my first attempt at solar photography.If you have a Celestron telescope, this is one of the cheapest and easiest option that you can buy. I am sure you can make a filter out of film sheets, but this is an out of the box option that is ready to go and attaches easily.

I bought it because it seemed like it would fit on an 8SE just like the dust cap does. It almost does, it has the 2 grooves to twist it on, but there are also 3 little appendages that stick out and prevent it from going on. Maybe you're supposed to push really, really, really hard to force it on, but I don't have to do that with the dust cap and don't want to do it with this. I'll play with it a bit more, and edit this if it turns out OK. So far, it's almost exactly what I want, but ends up being useless.