firstly i apologise for the slip shod pp, as i was trying to get this photo out asap.
not sure if you guys can see there is this streak of darker blue running down from the sky, somewhere about top left portion.
then there is this blue cast at the right side of the sea, near the horizon.
few of my other photos also did exhibit such problem.
my setup as below:
-Canon 7D + 10-22
-3rd party square filter holder from OP(Lee Foundation kit replica)
-Lee Big Stopper
-Hitech 0.6 GND
please do help me in identifying the problem and avoid OT-ing in this thread. Thanks.