The darkest skies I have ever seen were at over 15,000 ft. in Nepal. M33 was a direct vision object naked eye, as was M15. Unfortunately to save weight, all I had with me was a point and shoot digicam. The camera must have shifted on the rock I set it on as there is faint double vision......
http://rattlesnakeobservatory.com/Nepal.html
Canon Powershot S70
15 sec, ISO 800
http://rattlesnakeobservatory.com/Nepal.html
Canon Powershot S70
15 sec, ISO 800
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