Thanks guys!
Merlin, I'd be interested to hear how you get on with the 55-300mm when you get the chance to use it, sounds like a good range for aviation photography at least.
Angry, looking through the originals of todays photos, it's a fantastic camera and a nice upgrade from the 40D however I was experimenting with using incamera sharpening and noise reduction, something I never used on the 40D as I always had incamera settings set at zero. So I have yet had the chance to properly compare the 40D and 7D. Anyhow, I took a few shots today at ISO400 without incamera noise reduction and they seemed milky smooth so looking positive for higher ISO's come the darker evening light.
Dave
