Hi All
I would be attempting to photograph an Osprey fishing soon. I have a few questions about setting up my Canon 5DMkiii and Sigma 150-600mm C lens for this.
I would like to get a photo off the Osprey with fish in talons just as it has exited from the water. The water and background will be green and the morning light would be variable but low. I will be shooting from a bird hide. There will not be much else to shoot and I will be waiting around for hours for an Osprey to dive.
Shooting Mode
I normally use Manual mode for none bird in flight photos. However, as I would only have 7-10 seconds to get the shot, I may not have time to adjust the exposure manually as it will all happen very fast.
Should I use Tv or Av mode instead?
Should I use positive exposure compensation and by how much?

Metering mode
I normally use centre weighted. Is there an advantage to using another mode?

Focus Points
Central, single point with 4 expanded points

Image Stabilisation
At shutter speeds over 1/1000 is there any advantage to leaving it on?
Will it slow down my Auto Focus or tracking?

I look forward to hearing your thoughts.

Mike