I bought the K&F Concept Variable ND Filter Neutral Density ND2-ND400 (9 apertures) with rotating ring to be able to use a fast ND with different densities. The packaging is very well made, solid and space-saving packaging. The glass filter is light and the density increase / decrease ring is liquid. It does not have a limit switch block.
14/10/2021
K&F has delivered again, good value for money. I was looking for a good quality variable ND filter for my lenses and this one does the job. I bought the largest size. Got a nice tote bag. Image quality is great.
09/10/2021
The filter is of good quality and meets the desired expectations.
03/10/2021
Very nice filter to use .. no cross pattern in the filter adjustment. But it needs a hard stop to see what number of stop your at ..
A7iii with a 70-200 f4
A7iii with a 70-200 f4
16/06/2021