My friend PT and I went out for a quick shoot this morning. This was my first opportunity to use my new ND filter system on my Panasonic 7-14mm and, although tricky, I think a few shots came out great! As far as I can see there is no vignetting even at 7mm! The location of the sun was the biggest problem noting that flare is the biggest issue with this ultra wide lens. Other issues include dead batteries in my shutter release and my tripod. I’m glad to find these things out now and will get a new battery pack and also bring my monopod since the tripod was overkill for one second exposures.