Color casting from most ND filter isn't an appreciated thing for most photographer, but sometimes, it also has it's own benefit too just like this photo. The pink/reddish sky is mainly from the color casting of my ND filter stacking on top of the Reverse GND filter. It's not a Photoshop effect. And I think it actually looks pretty cool.
Also, today is the first time I've tried the Phottix Geo One GPS (which is one of the prize that I won from a photo contest earlier). I really like it! Not only it picks up the satellite signal fast, and pin point accurate, it will also automatically geo tag the photo for me when uploaded to Flickr according to the GPS data. It's very handy IMHO.
Nikkor 12-24mm f/4
Hitech RV GND 0.9
Hitech ND 1.2
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