Vignetting at 200mm? Not sure how likely that is. Try taking 2 shots of the same thing with and without filter, then see if there is a problem.
looks like lens flare rather than vignetting because the cranes are still very visible at the corners
It's not due to any filter. I also have this same issue with my 70-300 at 300mm end when i took the NDP aerial displays and it's mainly due to light fall-off at the corners. At lower lighting conditions, this effect is pretty common i would say.
What is the best way to take a shot at such conditions? Any advise?
Thanks.
Do u actually know the difference between flare and vignet?
admit i'm not expert... so can u explain or u gonna tell me to google... so ur point?
so i correct myself abt it being lens flare... but certaining doesn't look like vignetting.
Real freaky man, a white ring around the helicopters. Did you take a photo through a glass window?