Can anyone give their experience using the Singh Ray Vari N Duo, the variable neutral density filter with circular polarizer? How wide can one go without the filter edges intruding into view? E.g., how wide could one go with the 24-70mm Nikkor and this filter? There is a review on B&H of a fellow who only could go down to 28mm with the Vari ND which is not as thick a filter.
I am really tempted to pop for this filter, especially with Fall leaf changes a few weeks away and streams to shoot with color all around.
I too am interested in experiences with this filter. I am considering the 82mm (since I have a Zeiss 21mm with 82mm threads), and am wondering how well this would perform on my 24-70 with a step-up ring.
I too have heard that there is vignetting at the low end of the range of the 24-70. The 82 with step-up may do the trick all the way down to 24mm AND work on my 21mm lens.
Never used it but as I recall Rick Walker said it started vignetting around 16mm on a 12-24 Dx. That means roughly 24mm on FX but the actually numbers will depend on the lens.
When it was released I considered this as I do like to combine ND with CPL for some types of shots like streams and waterfalls. But, I realized that I would still need a traditional set of filter for the wider end so I would be paying twice so I passed.
Albert J Valentino Nikonian Moderator Emeritus Vantage Point Images Mastery of Composition is the Key to Great Photography
I believe the Vari N Duo only comes in the 77mm at this time. The Vari ND, without the polarizing filter, I believe comes in more than just 77mm.
I was taking shots in the Adirondacks two years ago, in October, and the inability to get a very long exposure was pretty frustrating.
Perhaps a rectilinear ND filter over top of my vanilla circular polarizer would do the trick. Hand held. My Cokin multi filter holder does appear in the sides of my 24-70mm frame when I go to the wide side. I'll have to take a look to see just where, though.
Perhaps a rectilinear ND filter over top of my vanilla circular polarizer would do the trick.
It does and this is a combo I now use when I need both. I own a regular 77mm screw-on ND but when I want to use a CPL and ND combo I compose with the CPL, then focus by using the AF button (which should not effect exposuse, then I hand hold my 4 stop ND filter over the CPL and shoot. The 4-stop ND I use is a Hitech z-size so it also fits in my Cokin Z-holder.
Thu 17-Sep-09 11:15 AM | edited Thu 17-Sep-09 11:21 AM by ericbowles
I have the Vari-N-Duo and have used it extensively on my 24-70 with a D300.
There is no vignetting on any of my full frame lenses. The crop effect of a DX camera eliminates any vignetting.
I see a small amount of vignetting on my Tokina 12-24 - typically to about 15mm. That is about the same as my Cokin P holder. I expect you can get some vignetting on other 77mm DX lenses at the short end of the range. You would not have a problem with lenses that use 72mm or smaller filters if you are using an adapter ring.
The Vari-N-Duo is about the same as three stacked filters or two stacked circular polarizers. You can test stacked filters or a 3 filter Cokin P Holder to get an idea of whether or not you will experience vignetting.
The VNDuo is a great tool. One of the uses I have found is to slow exposure in bright daylight to capture motion. Think about blurring clouds, flowers in the wind, or blurring moving vehicles. I'm still exploring that option, but it opens up a huge range of creative options. As you would expect, the polarizer saturates colors and cuts glare.
One comment on using the VariNDuo. You really do need to set the exposure (the ND element) and then turn the polarizing ring to the desired level. If you do the opposite, it counters the polarizing effect. This can be tough at times with high levels of ND.