[Solid ND] Glass seems to be high quality. Works as expected.

[Solid ND] I have been trying to figure out a way to protect my Sony mirrorless camera sensor from dust and particles.  

My biggest concern with mirrorless cameras is how quickly the camera sensor can get dirty.  

These KASE filters have solved that problem. 

By using a UV or ND filter that fits directly, and safely, in front of the sensor.  These filters protect the camera sensor from outside exposure when switching lenses.  This comes with a carrying case that can hold two additional filters, 3 ND filters, 1 UV filter, cleaning cloth, a guitar pick to remove the filter, finger rubber gloves, & instructions.

Pros:
1. No need to add an ND filter for different sizes of lenses
2. Protects the camera sensor from dust and moisture
3. Comes with 3 different ND filters for your specific scenario
4. Includes a soft frame pad that sits nicely below the filter for prolonged use
5. Very easy to remove or install
6. No overheating issues or problems when using the entire day
7. Excellent video and image quality

Cons:
It doesn't have a snug fit in the Sony a7sIII.  If you remove your lens and your camera body is tilting forward, it can easily fall out.  The instructional video shows that these filters clip-in.  However, I believe the dimensions are slightly larger for the a7sIII.  So to be safe, you will want to remove your camera lenses with the body facing up.  

All in all, this is an excellent innovative product!

[0.09 lb] Well built filter that fits the Nikon Z. Allows me to use lenses that would not accept external filtration.

[Dedicated] Glass seems to be high quality. Works as expected.

[Glass] This filter fits the A7R IV perfect. Be sure to place it in with the letters towards the camera and press the top until you feel the click. I have had no issues with it. It does a good job reducing the yellow in night photography and making the colors of light more realistic. Hard to beat for the price and convenience of using it with any lens.

[Solid ND] World Class shooting

[Solid ND] A very well made filter that fits snugly, magnetically attaching to the Osmo Pocket lens.

[Solid ND] My friend has these and told me to get them. So I did no questions asked. I can't wait to point my camera directly at the sun and not be blinded. I think that's all I can ask

[Dedicated] I love the fact that this stays in the camera and does not have to be changed with the lens. Saves lots of $, and helps with image quality. And the quality looks really great. I'm not noticing any color issues. I'm also not having any looseness issues. It's nicely snug, but easily removable. I was concerned after reading another review, but this copy was able to remain in place with the camera pointed straight down during lens changes. The ND 8 is the lightest filtering, but it seems like plenty for most situations. I'll be ordering more for my other cameras, but most likely all ND8 because unless I were in extremely bright light this seems like the sweet spot for me.

[Multi Coated] Fits great in my A7iii. Easy to install. Solves my dust issues without affecting IQ or autofocus.