Hmmm. Shall I be the first one to throw a spanner in the works?
j-ms wrote:
Yes, you will have to swop lenses when that big grey thing with a trunk gets too close but at 3.5m (the minimum focussing distance of the 400)
The correct distance is 1.8 meters. Swapping lenses is not really needed, just make sure you have 2 bodies with you. Borrow one, hire one,
steal one, but don't go out on an expensive holiday with just the one. Imagine that one breaking down?
j-ms wrote:
IS is a wonderful bit of technology but it must not be overstated. (...) This doesn't stop Canon from using it as an effective marketing tool.
IS has made it possible for me to make photo's handheld which I otherwise would not have even tried. Yes, if possible you use some sort of rest or tripod, but there are times when you simple can't. Flying birds jump to mind... It's not just marketing or Nikon (VR) and Olympus (AS) would not have joined in....
I am one of the many people that use the 100-400, and have fallen in love with it. Yes a prime is a little sharper, and may even be cheaper (Though I would never buy a f/5.6 prime), however if you do more than wildlife photography only the 100-400 is a way more versatile.
Bwana wrote:
and the push/pull mechanism acts a bit of a vacuum for dust!
Some say that yes. As if the turning lenses don't suck in air! I've been in Kruger twice with my lens now, not a speck of dust to be found on the inside. And that isn't the only place that was dusty. Actually I don't even bother protecting it from rain and humidity to some people's distress, and never found the lens to be steamed up (on the inside that is), and water is far more able to get in your lens.
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