Hoya is a brand that I recommend for the quality of its filters and overall good value for money. This filter is effective in both the anti reflection in color saturation. Purchased for its slim side for use with the Nikon 16-85, vignetting at wide angle is good. So good fit with my constraints. The small negative point is that once screwed I have sometimes struggled to unscrew the the grim of 1 corolla which screws onto the goal is not necessarily very prominent and thin (it's a slim). The second corolla for varying the effect is larger and presents no bp. Having said this remains a minor bp and should not be blocking for purchase.
