Free: Contests & Raffles.
But Pope's right in that many times the images it provides lack the kind of tack sharpness that we'd like to have on a consistent basis.
Agreed, but lets not get it twisted either, how many on this site can run out and drop $6K-$10K on a lens?
The 100-400 has it's place, just not in my bag. It's always a tempting lens because of the versatility. However, I can some the lens up in one sentence: IT DOES EVERYTHING GOOD BUT NOTHING EXCELLENT. Actually, if I was a bird in flight type of guy I think it does that excellent because you would have enough light to stop it down and make it sharp and you often get a lot of background separation with a bird in flight or even on water. Sorry, but I don't think you can convince me to have it over the 300mm f4 and a 1.4x when needed.Also, I don't say this with the intent to recommend or sway other from it. Other people can buy what they like for their budget. Also, if you own the 100-400, don't take it as an insult to your lens. Some guys like Heinz and other guys like Hunts ketchup. To each his own.