• BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

    Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Halo?!! (1 Viewer)


Well-known member
Took several pictures of Tern in flight this week and am puzzled by a slight halo effect on the head.. or is it my imagination? It is not editing, this is taken before and just one of many.
Exposure Time = 1/2000"
F Number = F7.1
Exposure Program = Aperture priority
ISO Speed Ratings = 400
Shutter Speed Value = 11 TV
Aperture Value = 5.63 AV
Exposure Bias Value = -0.67EV
Metering Mode = Evaluative


  • ternhalo.jpg
    121.9 KB · Views: 110


Stop Brexit!
Looks like a jpg compression artefact in this small, low-resolution copy. Does it show on the original on your camera?

Users who are viewing this thread