looks just like a graduated filter... prolly something like 2 stops worth.. look at cokin for something like that.. It's used to darken the sky so that you can get correct exposure on both your sky and your landscape.. otherwise one of them will not be exposed correctly.. This *could* be fixed later with dodging and burning, but a graduated filter can do the job without breaking the rules :)
I think André is correct, in the case of these two images there is a marked darkening line likely is a gradient filter. The effect seems a bit much to me; for the upper photo a circular polarizer would have given a better result, IMHO.
I always carry the circular polarizer, and in fact keep it on the camera when I know I will be shooting outdoors in sunny conditions. I don't own a gradient filter, since the effect is easy to achieve in Photoshop (though not DPC-legal).
i dunno.. maybe both stacked.. but look at the clouds in the top picture.. they're greyed out too, which is why it makes me think of a graduated ND filter.. I've never seen a polariser darken clouds like that..
i dunno.. maybe both stacked.. but look at the clouds in the top picture.. they're greyed out too, which is why it makes me think of a graduated ND filter.. I've never seen a polariser darken clouds like that..
Agreed. It can't be a polarizer on its own. A polarizer makes the clouds stand out more clearly. It certainly doesn't darken them.
