49mm Variable Lens Filter ND32-ND512 No X Spot Cross-wire Ultra-thin Nano-Xcel Series
SKU: KF01.1467
I like that you have 4 ND filters in one. It feels very good to the touch and is easy to adjust. But if you want it even darker you have to be careful with an extreme wide angle - screw another filter makes it easy to vignetting. Solo top-notch - but I'm not a professional, just a hobby photographer. I also think that this article was built for just that
26/01/2022