Quote Originally Posted by djguk47 View Post
However, I think your sensor may need a clean as it looks like a couple of spots in the clouds on the right hand third line in the HDR as well as the B&W.
Thanks for your comments David and Tom. I think the spots are BIF! Photographing seagulls from half a mile at 24mm probably doesn't work and looks like a spot on the sensor! That is why there are three spots on the HDR - the bird moved in the short interval between exposures. I will have to find a way of removing the birds and simultaneously acquire a 100-400 to take BIFs properly!