I like to use my Lumix GH2 and leave it recording all day to see what I can capture. I use a dummy battery plugged in and record in 1080p, 24 FPS.

You can get beautiful results from this camera and it does not overheat!

I also used my Lumix 45-150mm lens zoomed all the way to a
full frame equivalent of 300mm!

Music:
Stompin Grounds - Gary the Canary
Upbeat Flat Feet - The Fly Guy Five
Subdivision - The Fly Guy Five
Courtesy of www.epidemicsound.com