Starting with the plastic case, I was a little reserved at first. Compared with the instant impressiveness style of the old metal cases that came with the original Big Stopper, the plastic case didn’t have that same wow factor. However, there’s a reason for that, the case is tough and extremely protective, and while it isn’t waterproof, it can withstand more than a shock or two.
In this instance, the quality of the case is so important because this filter is extremely expensive, and breaking it whilst it’s in the case would be devastating. If any case is going to protect the LEE FILTERS ELEMENT VND (2-5 stop), it will be this one.
Removing the filters and the two sections of the variable ND rotate beautifully smoothly wth the edges nicely knurled so you can feel the difference between the two. To fit the filter, it’s just a case of screwing directly into the filter thread of your lens, with the filter being available in several different diameters to suit a wide range of lenses and manufacturers.
In this test, I’m using the 82mm on a Sony A7 3 with 24-70mm f/2.8.
Once in place, the front element can be rotated to adjust the exposure. The quality of glass and ND effect is instantly apparent compared with other variable Neutral Density Filters that I have used recently. There’s only the slightest visible sign of a warm colour cast and no vignette around the edges; the frame is clear and crisp, as if there was no filter in place. The effect is solely the change in exposure times as the element is rotated, at least to the eye.
The amount of exposure reduction created by the filter is enough to control the exposure times while still enabling the AF to work without issue. Used to take a few landscape shots, and the filter’s effect was enough to extend filter times; and on a bright day, it was possible to open up the aperture to f/2.8 while still having a shutter speed that was well below the 1/8000 limit of the camera.
Where I have really found the filter to come into its own is when shooting video. The ability to stop between 2 and 5 stops of exposure enabled me to keep the shutter speed at 1/60th when shooting 1080p 30fps helping to ensure smooth motion.
Not only does this help with the motion quality of the footage it also helps boost the tonal content by enabling better control of the exposure.
The use of the filter is simple, but it enables an exact refinement of your settings to enable the look and style you’re after without compromising. The price is beyond what I would have thought I would pay for a variable ND, but when I consider the amount of time that this filter has saved me when processing video, it would have more than paid for itself, it is outstanding.