Reviews
A decent, cheap variable ND filter.
A decent, cheap variable ND filter. If you're in a bind and need a backup, or are not needing for a high-end image, I can recommend this filter.The threaded ring seats nicely to my Sigma Art 24-105 and the build feels of good quality. The filter ring rotates with smooth and firm action.Sweeping through the density range we see a noticeable shift in image clarity with a bit of increasing distortion as we reach the higher density. At its maximum density there is prominent gradation in the visible light. Maximum density is achieved strongly through a center band of the image leaving the top and bottom edge (depending on how your filter seats) a few stops shy.I have not yet tested it in a studio setting with measured or metered light, but in general outdoor use these symptoms where noticeable. If you're looking to start using a ND filter and do not want to cough up $100 of more dollars for a higher end brand, this will do the trick, but with a few hangups along the way.
2017/04/19