[72 mm] Took my photos with my 28-70 to the next level, it now lives on that lens and probably will forever. The 1/4 grade is absolutely perfect for everyday use. Will definitely be looking into different sizes for other lenses.

[72 mm] After reading some reviews, I was hesitant to purchase. So far, no trouble with it. In fact it has made some of the most difficult situations easier to shoot in.

[72 mm] I wanted a decent variable ND filter that wouldn't break the bank. I primarily use this filter for motion blur in long exposure images as well as portraits in sunny conditions using OCF with low aperture settings. I am quite happy with the results.

[72 mm] If you're looking to try long exposure on a budget, this is a very solid buy.

I bought this for a first attempt at long exposure waterfalls and I am immensely pleased, especially with the price point. I shoot black & white so I can't comment on any possible color aberrations, but all of my shots are clean and sharp. It took getting sprayed by waterfalls in the middle of winter very well, cleans easily and threads smoothly. Best paired with 100 speed film on bright sunny days, it only took me down to 1-2 seconds with 400 speed.

[72 mm] Excellent build quality, filter turns super smooth and works great. Such a nice feature having 2 in 1.

[72 mm] Was a little skeptical at this low price point but the filter is a winner. Super smooth rotating action. Super wide range too. Seems like no degradation in image quality.

[72 mm] Perfect for watefall photograpy.

[72 mm] As I already had the 58mm size prior to this one, it is, for the price, a very good ND variable filter. I don't know what those others have that are sold for more than $100, but, this serves me fine. Very Good filter.

[72 mm] Fast shipping from B&H and product arrived as promised. B&H is the best.

[72 mm] I am a film photographer and I bought this for my Pentax f/1.4 50mm lens to shoot long exposures of waterfalls. For such a low price I was prepared for problems but all of my images were beautiful and consistent, no difference in picture quality at different exposure times and different lighting conditions. The fact it is waterproof was greatly appreciated since the spray radius off some of the falls was quite impressive. Overall very pleased especially for the price, I would def buy from this brand again.
Good to note: I primarily shoot black and white, and the only color shots I took with this filter were at night, so I can't really speak to how it might affect colors. What I did shoot looked accurate and I don't see any discoloration.