I find that the effect of this one is a lot weaker than my cheaper branded 58mm that said there is ZERO distortion i find on this. Its obviously made of of glass just not as strong a difference. I still like it though as im mainly using it to correct problems caused by reflections .. not for modifying the colors of the skies as some use them for.
06/06/2019
For the price it works fine, the polarising effect is good and it comes in a decent enough case.Marked down by 1 star because I hadn't quite appreciated how slim an ultra slim filter is. Considering that the polariser spins round, it is very easy to get the filter stuck onto the lens (or adaptor, whatever you screw it into) because the bit you need to grip with your fingers is about 1mm thick. Of course this is impossible so you need to buy a 77mm filter wrench to go with it for when it inevtiably gets stuck. They are cheap though so no biggie.
12/04/2017
Not used yet but looks good for the money...delivered promptly....thank you
05/02/2017
Great for car photographyPros:Easy to useWell packagedIt fits greatAdjustableYou can see a couple of sample of photos taken at (Studio ones):[...]
06/08/2016
The quality of these filters seem very nice for the price and better coated than some of the other filters I have purchased. The filter did it's job and helped balance the exposure between bright, mid-day sky and landscape.
30/03/2016
I have not had a good day to test outside yet with actual Polarizing, but I have done macro level and 20 Ft testing and there is absolutely no change in image quality (even with pixel peeping). This was my biggest concern with this lens. The quality is amazing so far. One thing I have noticed is that when you put this filter on is that it does flex a tiny bit. This is not an issue until you try to take it off. If you try to squeeze the filter get a grip, it will not unthread. You have to be a bit gentle with it, then it unthreads without hassle.There was one tiny spec on the filter, but it does not seem to be effecting the image at all. I will update this post once I get more testing done.This was tested with my Canon 24-105 F/4 L with my 1DS and 50D.
06/01/2016