Delivery and price OK. Unfortunately, the filter with my Nikon D 5000 and D 7000 a slight blue tinge. Therefore, only 4 but Sterne.Geht well as in Bearbeitungspogrammen Ps od iron out Gimp. makes a stop additional work. The workmanship is good. The Slim version is very good. The name of ND filters is very confusing (all manufacturers). Prepare yourself smart in the net. For example, ND 3.0 (ND 1000) = 10 times the extension; ie measured without filter, for example 1/25, (10xVerlängern) 1/15, 1/8, 1/4, 1/2, 1s, 2s, 4s, 8s, 15s, 30s exposure. An ND filter 8 has only 3-fold extension; He is a ND 0.9