Hello:

I am a new Canon EOS 1Ds Mark III owner and would like to ask some questions about this camera.

I am an aerial photographer and plan to use my new camera as an aerial camera.

1) At what ISO level does the noise show up on a this camera?

2) What shutter speeds to compensate for vibration of the aircraft should I use for all focal lengths or my 24mm-70mm Canon Zoom lens?

3) What affect does the anti-vibration

3) At what ISO should I be to use the fastest shutter speeds of 1/500th and 1/1000 second? Will this setting give me undesirable noise?

Thanks

4) Is the 70mm end of the zoom considered a normal angle lens for this camera? Is that considered equivalent to a 50mm as a normal lens for a 35mm camera?