I've only taken a few test snaps outside, but so far I'm really liking this lens filter. When I took photos of my garden, the images I used the lens on were sharper and truer to color.

The lens also seems to be well made. It has a metal body and comes in a thick plastic case for protection.

I am very happy with it.

Please see the attached pictures!

As you can see from the pictures, the filters block glare and unwanted lighting. I honestly didn't think these would work as well as advertised, but boy was I wrong! If you are a new photographer this is a must! I got the 49mm as I usually shoot with a 50mm. My camera is the Canon80D. It is easy to attach and detach. Comes with a plastic case to store the filter which is great.

I plan to get the other filters for my other lens. Highly Recommended!

I used it on my Panasonic 45-150 lens, which is the lens I use most outdoors.

I misunderstood when ordering that the UV lens is also half of the polarizer, but it works fine. The UV filter fits easily and smoothly into the lens, the polarizer attachment filter fits well and works well at an angle to reflective surfaces.

The images I took with this one on my Panasonic GX85 came out fine with no optical aberrations. Better quality filters exist but they cost a lot more - this set is the perfect combination of price, quality and optical quality. I am very happy with it.

This does exactly what it promises. It helps reduce glare on windows, protects the camera lens, and slightly improves saturation. Compared to some of my other CPL filters, they have slightly more saturation improvements than this filter. I haven't experienced much vignetting. My only issue is that the lens filter sometimes unscrews when rotated, but I'm sure I'll get used to it with use.

All in all it's not a bad price for a UV filter & CPL filter. I like some of my other CPL filters more, but that wasn't bad by any means.

This is a good filter for a beginner or amateur who doesn't want to spend a lot on a filter that they don't use very often.

The picture is good and sharp and I didn't notice any color cast. But as others have noted, it doesn't run as smoothly as I would like. Also, the UV filter is useless for digital photography.

Overall it's a good filter at a fantastic low price. If you take the time to work with it and are not in a hurry, you can get results that are just as good as much more expensive filters. However, if you need repeatable, professional results quickly, spend more money on something else.

I've read bad reviews about people having the filter stuck or unscrewing during use. If you gently turn it in the right direction with the ring you won't have any problems I would say. For me these work very well on the Sigma lens.

For the price, this is a decent circular polarizing filter for the amateur looking to use a polarizing filter. It includes a UV filter which I only consider extra.

Personally, I only recommend using UV filters when shooting film, as they generally don't improve the image quality of modern digital cameras and can only degrade it, if at all. I know a lot of people think of it as a protective layer for their expensive lenses, but I find that a cheap UV filter on your expensive lens is actually more likely to damage it. A case in point is that the threads on this filter are very sharp cut. You can feel and hear them crunch as you screw them in, and when they're tight, the sharp threads want them to snap. If the lens was bumped hard on the corner with the filter in this position, the UV filter could actually catch and damage the lens threads, requiring expert repairs to remove the filter and repair the lens. In my experience, just holding the lens hood provides far more protection than a UV filter possibly could.

With that out of the way, let's get to the content of this review, the CPL filter. For the price this will work perfectly. It darkens the sky when used properly in the right conditions and can help reduce glare and reflections. It doesn't appear to have any discernible color cast, which would be a problem. In fact, the only real problem I have with this filter is the mechanical function.

First, the threads are cut very sharply, as already mentioned with the UV filter. This isn't the end of the world, but it does couple with the fact that the rotating ring on the CPL filter is also very, very stiff and rotates quite a bit. To rotate it as required to accommodate current conditions you have to pull the filter onto your lens more tightly than I would like and with threads that sharp increases the risk of the threads snapping tightly onto your lens. It's possible for them to lock so tightly that it can be quite difficult to remove them from your lens. While $30 is a pretty good bargain for an otherwise pretty decent filter, it's no bargain when you run the risk of Costing you a lot of money to repair your expensive equipment. If you're using a cheap lens, this cheap filter should be fine. If you've spent a lot of money on an expensive lens, I wouldn't recommend cheaping out on the filters.

In the end I chose 4 stars because the glass is of a pretty good quality and if you are aware of the limitations it is safe to use as long as you don't over tighten it. It's just a little less practical. But otherwise it works fine.

Over the years I've tried filters for my camera lenses from a number of manufacturers and when I tried the K&F glass filters I didn't look anywhere else. K&F Glass filters outperform about 80% of other manufacturers. I am a longtime nature photographer with landscapes and wildlife in their natural habitat. When I'm out in the rainforest and focusing on a cougar, I want the first shot to be the best as I might not take a second.

Very cheap price for 2 lens filters for a larger optic (77mm). The CPL is designed with nice knurls so you can easily hold and rotate it to create different effects on photos. Both filters have enough frames to securely attach the lens cap. Will buy more for my other lenses.

For me a very good polarizing filter, use it on the Sigma 10-20mm 3.5 Ex for Nikon!! So far no reflections or loss of sharpness! Of course you lose 1-2 light levels because the filter glass is darker. But that's normal. Example photos: 1. 20mm with filter, 2. without filter, 3. 10mm with filter, you have to be careful because the full power of the lens is coming!! With a 10mm filter, always turn it back a bit, because the angle to the sun always causes barrel-shaped blue coloring! But not because of the filter! Is wide angle (physically) due, even with very expensive polarizing filters! Great value for money of course!!, Use the filter in landscape photography!! Otherwise without!!