K&F Concept 58mm ND1000000(20 Stops) ND Lens Filter 18 Multi-Layer Coatings Neutral Density Camera Lens Filter (K Series)

very good filter

This ND filter is fantastic for deep dark long exposure photography.

I got both the ND100000 (16.6 stop) and ND1000000 (20 stop) for the Apr 8 2024 eclipse. They both worked well. I used the 20 stop during full sun at ISO100 f8 exposed between 1/4 to 1 second. The 16.6 stop max'd out at 1/1000 sec during full sun, but worked great shooting thru thin clouds with about a 1 second exposure. These are a good inexpensive choice for solar photography. Sun spot will show but you need an hydrogen alpha (Ha) filter for solar flares. CAUTION As the amount of UV blocking is not known, don't use the optical viewfinder, instead use the electronic live-view screen to protect your eyes!

The media could not be loaded. The image and video were taken using my cellphone. (Considering this, I think the results were decent) I'm using a Vivitar 2.2x telephoto lens and this ND filter. I bought a 52mm thread clip to attach to my phone. The picture is 20x zoom and the video is 10x zoom. This is the reason why the picture and video is blurry. The picture and video was clear if I didn't zoom in, but I wanted the large view. ( In retrospect, I think I should not have used the zoom on my phone ) I think this filter serves it's purpose well and I am happy with my purchase.

The perfect item for getting quickly in focus and in position to follow the Full Eclipse as it unfolds...As far as I can tell the optical quality is excellent... compared to what I got thru an 8" small telescope this filter on my Nikon 300-mm telephoto was nearly "as good" when focused right... AMAZING!!! thanks for this...

When they say blocks out all light they are not kidding lol...which is a good thing. You can only use it when you have a direct view of the sun....if there are clouds you will see nothing. I've gotten amazing shots with it.....i love being able to capture the sun spots

I used this filter to photograph the total solar eclipse with great results. I mounted in on my old Nikon D200 with the 18-200 Zoom and a tripod. This was likely a one-time use, but I would buy again.

This is a great filter it worked perfectly for the eclipse. I highly recommend it!