planes

How to YOU get your best images of high altitude planes and contrails? With my 7D+500mm I would generally just use Shutter Speed Priority of 1/1000th, and leave the rest on auto. I'm not sure this is the best approach, but it's been okay for my needs. I've just got a new camera, a Nikon...

There's been a lot of photos stuck up on the internet without a description of what they are, with the suggestion that they are related to the "chemtrail" theory. I've collected a lot of the earlier ones on contrail science: http://contrailscience.com/contrail-or-chemtrail/ and there's a thread...