APOD: Aurora Dog over Alaska (2014 Apr 29)

[Anthony Barreiro]

Thanks for the technical info John, and for the image.

[superwillbee]

Being partially colorblind i am quite aware that it's totally unclear what different persons see, looking at 'reality'. So basically there can't be a universal, common image of reality. The use of different camera's, lenses etcetera adds even more doubt about this 'reality'. Reality is quite questionable.
But i am still wondering about the stars. How come they all seem to have more or less the same magnitude? Is it the Fish-eye lens together with the 15 seconds exposure? Have the stars been over-exposed?
Still a beautiful image though. Thanks for sharing it.

[charlieo3]

OK, John. Thanks for the background info and the photography lesson.