Fits perfectly

Excellent UV filter that is also super thin

I have this ultra-low reflection uv filter in three sizes! It is very well made, easily threads on the lens, and provides great UV protection as well as preventing my actual lens from being scratched. Great value for the price! Picture quality is great through the filter. I use this filter for everything outdoors.

I bought the K&F Mark CPL filter holder as a replacement for the MK 2, which was quite cumbersome to remove and install the polarizing filter. The magnetic polarizing filter is now easier to change.

There are 5 stars for the entire system due to the good price/performance ratio.

UPDATE: I was approached by a company representative and offered a replacement filter. I received it today and did a quick test. This filter seems waaaay better. It doesn't have any shadows in the corners or any black spots when shooting towards a light source. I haven't tried it out in the field yet, but it looks like it'll be alright. Either way, impressive customer service.

ORIGINAL: After reading all the reviews I decided to purchase this filter because my budget was tight. I used it on 24-105 f/4 L lens to take some photos at sunrise and sunset. It's absolutely terrible. There is a black shadow on the right side of the filter that gets stronger with each step. I wish I could return the filter but I've already threw away the packaging:( Will have to throw this filter away as it's completely unusable...

Very good. It polarizes properly, easy to cut out and glue onto the light bulb and there is plenty left over (after cutting out what is required for a medium sized bulb that I use with my mobile phone). They are two sheets, slightly smaller than the size of a sheet, covered in protective plastic that must be removed before use.

It's perfect for my LED bulb, just cut out the sheet a little and it's perfect

Easy to use work well for my 4 wheel speedometer replacement foil