The Hoya 67mm Variable Density Filter is a solid variable density filter providing an exposure reduction of about 1.5 to 9 stops. The 1/3 to 1/400 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than would normally be required. The degree of density is easily controlled by rotating the front filter ring, allowing you to visualize the additional exposure length required. By slowing your exposure time or increasing your aperture, you are able to both control depth of field and amount of movement conveyed more easily.
This filter features a front rotating element that changes the density of the filter, to help reduce the amount of light entering the camera lens. It is constructed from high-quality optical glass from Hoya Corporation, with an aluminum filter ring.
| Type | Variable neutral density |
| Size | 67 mm |
| Filter Factor | 0.3 - 4.0 (1.5 to 9 stops) |
| Rotating | Yes; to vary density |
| Effect | Permits a longer exposure |
| Color Temperature | Does not affect color |
| Construction | High-quality optical glass |
| Front Filter Thread Size | No front filter threads |
| Front Lens Cap Size | Not specified by manufacturer |
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Comments about Hoya 67mm Variable Density Filter:
I bought this filter to use for long exposure photography with my Nikon D600 as well as being able to use wide apertures in bright sunlight. As long as you stay within the marked limits of the filter, it works as advertised and produces great results. Colors seem to be unaffected, but some minor post-processing adjustment may be necessary to get the photo to where you want it to be. I expect this is normal.
What's great about it is that it is easy to use. One short twist and you go from light to dark or dark to light. There is no need to remove the filter to re-adjust focus the way you'd have to do with darker filters. Just twist it to its lightest setting and you can see through the viewfinder. (Maybe a different story if you're trying to use live view)The clarity is very nice and photos come out sharp.
This is nearly a perfect and very convenient product EXCEPT.... there may be some cases at its darkest setting where you may see some uneven exposure or vignetting. Instead of the vignetting being visible in the corners, it may appear in the top and bottom middle of the frame. You probably won't notice it at all if you're shooting longer exposures in less available light (I didn't), but if you're using it at its darkest setting in bright daylight, you might see it. To be honest this filter is not dark enough to use for long exposures in bright daylight, so this may not be much of an issue. For that you'd have to go with a 1.2 or darker filter anyway.
When using this filter make sure to always stay within the marked limits. If you try to go beyond that at the darkest setting, you're going to see a giant, dark X across your photo. There's nothing to stop you from twisting the filter 360 degrees, so just pay attention to the markings as you're rotating it.
Overall I would recommend this product for its clarity, ease of use, convenience and construction. It produces great results when used correctly. If you want to do long exposures in bright sunlight or directly into the sunset, you'll need something stronger than this. Otherwise it will work well even during the day with shorter exposures.
Images below taken with a Nikon D600, 28mm f/1.8G and the Hoya variable density filter. Vignetting you see in corners was added in post and is not a result of using the filter.
Comments about Hoya 67mm Variable Density Filter:
Amazingly sharp , superior quality , I used Tiffen and Heliopan and I trust this filter more due to the outcome and the quality of the pictures.
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