Beginner Veil problems

[garnier81]

I shoot a lot of sunset/sunrise landscape shots. Often if I have some dark shadow areas against a bright sky, my pics end up with some veil over the dark areas (is veil the correct term?).

Even if I expose for the dark areas and make a composite shot, the veil still appears. Current lens is a Canon FD 24mm multicoated SSC on a Sony A7.

Any pointers appreciated

 

[Phil V]

It's Lens flare. It's caused by light entering the lens directly and bouncing about off all the internal surfaces.

Don't use filters, use the best lens you can, use a lens hood.

 

[Graham W]

And keep the front element as clean as you can. A speck of dust won't hurt, but a finger print probably will.