Just got a new lens, needed a 77mm filter to protect it. I'm not going to sit and tell you this glass is better than some other glass. I just got it, and I'm not an optics expert.But, I will tell you the packaging was beautiful, the filter case- one of the nicest I've ever seen. It is circular- and holds multiple size filters with grooves in an internal bracket. So much nicer than the big clunky square filter boxes I've got from other brands.But- the killer was the filter being so thin- and that it has 2 areas that are gnarled, for you to grab it- while the rest is smooth- a really nice feature.Seems right at home on my Canon RF24-105/4 L IS USM.Didn't notice any difference in speed of focus- or aberration- but, again- I'm not a lab.I'm pretty happy with this brand. Didn't expect to be.
03/09/2020