Any recommendations on variable neutral density filter's you have been using or have heard perform well? Gonna be purchasing one soon for my GH3 with a Olympus12-40mm lens. I was looking at the Tiffen 62mm Variable Neutral Density Filter found on B&H
http://www.bhphotovideo.com/c/product/821125-REG/Tiffen_62VND_62mm_Variable_Neutral_Density.html
Just wanted to see if anyone had any other recommendations.
Thanks guys!