I am debating purchasing the Vari-ND or the Vari-ND Duo. I understand that the standard thickness Vari-ND has threads to mount a polarizing filter should I want to use one. Or would I be better off buying the Duo and always having the polarizer on there?
I've got the Vari-N-Duo. Having it all in one package really works for me. You can dial back either the polarizer or the ND to the desired effect. A single filter with both features ends up being thinner and reducing vignetting.
The importance is really a matter of what you photograph. I'm in the southeast and photograph a lot of streams, waterfalls, and cascades. The VND is perfect for those situations.
Thanks for the response, I am going to go ahead and get the Duo. I also plan on streams and cascades. Which I had it when I went to Iguazu Falls three months ago, but I am planning on Torres de Paine in March and I am sure I will get a lot of use out of it. Thanks again,
I use it for more than 50% of my stream images. Just remember the trick is to set the ND and then adjust polarization. The reverse causes the desired polarization to go away. And be sure to turn on Long Exposure Noise Reduction for most situations.
You can use the Duo with wide lenses if you watch vignetting. I find that reflections on foliage and rocks are well managed with polarization even on wide lenses.