Thanks,
A Nikon Circular polar II filter was used.
Do the dark edges have anything to do with the /F-stop chosen? Is this called vingetting? Also I plan on doing some lense correction exercises with my new Nikon Capture NX software. If i find time.
I have see examples @ 10mm where the buildings are totally perpendicular after corrections. I have alot of 10mm captures in that the buildings tilt dramatically inwards at the edges.Is this called chromatic abreviation/distortion ? only at extream wide angles...Right ?
I'm here to learn.
Rick