Low and Fast
first shots of planes with my new Sigma 150-500mm...  sky was dull, but I am really happy with the success rate of the shots for my first outing with the lens.

RAAF Roulettes over Melbourne on Australia Day 2011
show nikon display bigma aircraft military air australia melbourne victoria pilatus vic airforce australiaday raaf austday roulettes 2011 d90 pc9 royalaustralianairforce nikond90 150500mm sigma150500mm cityofmelb sigma150500mmf563apdgos