Upload & Sell: On
Jarvis, Grant, Mike, Robin and Eyvind.....thank you for your kind comments.
Mike, both 600 II and 400 II are 4 kg of mass. However, mass distribution thru the lens volume is different, which results in 600 II being harder to shoot with/control handheld.
Robin, Pixie is right, I do JPG almost exclusively, and my postprocessing effort is generally minimal. However, I do fuss over camera exposure settings, 99% is shot in manual exposure mode, I totally ignore histogram, but I do seem to end up exposing "to the left" most of the time.
Eyvind, other than some minor exceptions when I have used Mode 2, I do keep IS in Mode 1 at all times. However, when doing BIF where there are fast and/or abrupt or irregular lens swings, I turn IS off. That type photography I do not do with lenses longer than 500mm though, ideally 300mm.
When it comes to focus limiter on the 600 (and the 800), I switch it from "full range" to "16m to infinity" and v.v. frequently when shooting. That is an unfortunate neccessity, in order to help AF to cope with a major defocus range of those lenses, and also not to deprive myself of the proximity shots. It is doubly unfortunate that the focus limiter switch is located on the 600 II where it is. A penalty is that on occasion I forget which limiter setting I am currently on, and proximity shots have been missed (i.e., no AF) when I've failed to switch the limiter to "full range".