I love these variable ND filters. While they have clear optical disadvantages compared to fixed ND filters, the advantage lies in their literal variability.
With "fixed" ND filters, you always have to carry a whole set of filters with you.
This takes up space, weight, and is, of course, more expensive. Changing them or choosing the right ones on-site is also time-consuming.
With a variable filter, you don't have these problems. Simply screw on one filter, turn it until you get the desired darkening, and you're done.
You have to pay for this advantage with a slight loss in imaging performance.
Since such filters essentially "only" move two polarizing filters in opposite directions, there are slight inaccuracies in the uniformity of the darkening.
However, this can be corrected relatively easily in post-processing.
Otherwise, there are no weaknesses, at least not that I—as a layperson—could identify.
For me, the advantages and user-friendliness clearly outweigh the disadvantages.
Thanks to the "handle," it's actually very easy to use. The resistance is also just right, so the desired setting doesn't change easily.
Everything is fine here, and the price is right when you look at comparable products.
I give it five stars!
With "fixed" ND filters, you always have to carry a whole set of filters with you.
This takes up space, weight, and is, of course, more expensive. Changing them or choosing the right ones on-site is also time-consuming.
With a variable filter, you don't have these problems. Simply screw on one filter, turn it until you get the desired darkening, and you're done.
You have to pay for this advantage with a slight loss in imaging performance.
Since such filters essentially "only" move two polarizing filters in opposite directions, there are slight inaccuracies in the uniformity of the darkening.
However, this can be corrected relatively easily in post-processing.
Otherwise, there are no weaknesses, at least not that I—as a layperson—could identify.
For me, the advantages and user-friendliness clearly outweigh the disadvantages.
Thanks to the "handle," it's actually very easy to use. The resistance is also just right, so the desired setting doesn't change easily.
Everything is fine here, and the price is right when you look at comparable products.
I give it five stars!
17/04/2025
The case is surprisingly high quality and the filter is not badly made.
Everyone praises this product for its high quality and precision, but it is quite expensive.
It would be better if it was priced a little cheaper.
The slider allows you to change the filter, so there is no need to carry around multiple filters, which is very convenient.
Everyone praises this product for its high quality and precision, but it is quite expensive.
It would be better if it was priced a little cheaper.
The slider allows you to change the filter, so there is no need to carry around multiple filters, which is very convenient.
16/04/2025
To capture colors more realistically and in more detail, you sometimes have to increase the exposure time a bit without overexposing the images.
With the K&F Concept ND filter, you can reduce the brightness incredibly easily and in a very short time.
The 58 mm version screws perfectly onto Canon lenses. It's a shame, however, that the lens cap doesn't quite fit.
The adjustment lever is at the bottom right for the slightest darkening and slides upwards; for the greatest darkening, it points to the top right. For me, as a right-handed person, this is very easy to handle.
I think the results speak for themselves. I'm still a long way from being a professional, but it allows you to capture and preserve really beautifully intense colors. For a near-beginner like me who likes to try out all sorts of things, the filter is easy to use and absolutely fantastic for the sunsets we see on our Baltic Sea beach (but of course also where there isn't a beach).
The included filter case rounds out the package nicely. It's perfectly protected whenever it's not mounted on the lens, and the pull loop makes it easy and elegant to remove from the case. The leather case has a hidden magnetic closure, so the filter won't accidentally fall out.
All in all, a great filter whose results already make you want to try the next, stronger filter.
With the K&F Concept ND filter, you can reduce the brightness incredibly easily and in a very short time.
The 58 mm version screws perfectly onto Canon lenses. It's a shame, however, that the lens cap doesn't quite fit.
The adjustment lever is at the bottom right for the slightest darkening and slides upwards; for the greatest darkening, it points to the top right. For me, as a right-handed person, this is very easy to handle.
I think the results speak for themselves. I'm still a long way from being a professional, but it allows you to capture and preserve really beautifully intense colors. For a near-beginner like me who likes to try out all sorts of things, the filter is easy to use and absolutely fantastic for the sunsets we see on our Baltic Sea beach (but of course also where there isn't a beach).
The included filter case rounds out the package nicely. It's perfectly protected whenever it's not mounted on the lens, and the pull loop makes it easy and elegant to remove from the case. The leather case has a hidden magnetic closure, so the filter won't accidentally fall out.
All in all, a great filter whose results already make you want to try the next, stronger filter.
14/04/2025
The original filter was faulty with dust and lint between the 2 pieces of glass. I received excellent customer service from the seller and the issue was dealt with very professionally.
28/07/2024
Non delude le mie aspettative , prodotto di ottima fattura lo uso da principiante con
Canon eos m 50 mark II
Canon eos m 50 mark II
07/05/2024