Here are images of a 22° radius sun halo, sundogs, an upper tangent arc, and even a circumzenithal arc (lower combined image) taken from my back garden in Conon Bridge on the longest day, 21 June 2005, at 19:10pm BST (18:10pm UT). The centre of the bow of the circumzenithal arc is always sunwards and red is on the outside.

These clouds are cold and contain ice crystals which refract and reflect the sunlight to form the halo and other associated phenomenon. The halo is large and always the same size, no matter where it is in the sky.

The image was taken with a Nikon Coolpix 5700, IS0 100, f/5.0, 1/2000sec, fl=9mm with a 0.45x wide-angle teleconvertor lens and processed with Adobe Photoshop CS, in particular to enhance the contrast. Note that I masked the Sun to ensure the halo and other features weren't washed out by the it's brightness.

Here is an image of a 22° radius sun halo taken from my back garden in Conon Bridge on 30 April 2005 at 1:25pm BST (12:25pm UT). This is a very common halo visible all over the world throughout the year. They occur when the sky contains wispy, hazy thin cirrus clouds.

These clouds are cold and contain ice crystals which refract and reflect the sunlight to form the halo and other associated phenomenon. The halo is large and always the same size, no matter where it is in the sky.

The image was taken with a Nikon Coolpix 5700, IS0 100, f/5.0, 1/4000sec, fl=8.9mm with a 0.45x wide-angle teleconvertor lens and processed with Adobe Photoshop CS. Note that I masked the Sun to ensure the halo wasn't washed out by the it's brightness. The clouds have come out pretty good as well.

This was taken at 6:30pm (17:30h UT) on 19 April 2005 from my back garden in Conon Bridge. You can see two sundogs, one either side of the Sun at 22°, which was masked to ensure the "dogs" weren't washed out by the bright sunlight.

Camera settings were ISO 100, 1/2000sec, fl=8.9mm with a 0.45x wide-angle teleconvertor lens.