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Mich, I would take both lenses, but I suspect your 24-105 will cover what you need, unless you are shooting cow faces close up, lol!
Crank the ISO to 200 to give your cam some 'room'...you may have to go to ISO 400 depending on 'light'. You can use Auto or Aperture or Shutter priority, whichever you feel most comfortable with, and can switch around when you get up and do a couple of looks through the viewfinder to see what f stop and shutter the cam is giving you for a shot.
Agree on the light day, (or cloudy bright), and a noonish time...
I shot a bunch from a chopper in AK heading to the Mead glacier and used ISO 200, an 18-85 lens and reasonable shutter speed and f stop.
I used AV priority at f11 - f13, and my shutter speed stayed decent.
Remember, unless the chopper is strafing fields you can get away with a 'reasonable' shutter speed of 1/100th or so, as the chopper isn't moving at high air speed, and the ground below is fairly static. Not a prob, in terms of having enough speed, decent f stop, (f11 or more), and your Is lens will give you a couple of 'stops' of extra image stabilization.
Take a decent sized CF card and crank away! Try to avoid the distortion of the copter's bubble and side windows: get cam lens close to 'look through' the plexiglass windows.
Example of shot from copter zooming toward Mead glacier...the distortion at bottom right of pic is typical of what the copter plexiglass windows give, at the edges. I had no choice on what seat I got to sit in. You will, and should be able to stretch around, lean and point cam toward the less reflective/less distorted window(s) panels.
Try to keep the sun at your back, etc. Have fun!
GL, mD
Last edited by motordavid; 10-08-2013 at 05:36 PM.
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