I currently own 70-200 2.8 and a 100-400 is And am considering replacing these two with the new 70-200 2.8 is and upgrading my 2x converters also. Has any one seen a report on this new lens using the new 2x converter.

-- Les Maynard (lmaynard@rochester.rr.com), March 27, 2002

Answers

You will lose quite a bit of quality with the 70-200 and 2x option. Here is a good review of exactly what you mention. I hope this helps...

http://www.luminous-landscape.com/400v400.htm

-- (rashrader@hotmail.com), March 28, 2002.

Whilst the luminous landscape test is with the old converter, I doubt there'll be a night-and-day difference between the two converters. If you want a 400mm lens, buy a 400mm lens, not a 200mm lens.

Since you already have the 100-400, keep it. It will be better as a 400mm lens than the 70-200 F2.8L IS + TC, and also, if you have an EOS 3, 1V or 1D, makes a usable (I've seen some great results) 560mm F8 with the 1.4X TC.

-- Isaac Sibson (isibson@hotmail.com), March 28, 2002.

Yeah, what they said. As awesome as the 70-200 f/2.8L IS USM is, and as good as the new 2x is, if what you want is a 100-400, you're better off with the 100-400 and no TC. If you want the 70-200 IS lens to replace your 70-200 non-IS, I'd say that's a good call if you can afford it. But I can only see two reasons for replacing the 100-400 with the 70-200 IS + 2x: if you want the 70-200 IS but can't afford it other than by selling both of your existing lenses, or if the size/weight of having two big zooms to cart around is too much.

Of course, if you DO decide to replace either or both, feel free to ship the leftovers to me :-)

-- Steve Dunn (steved@ussinc.com), March 28, 2002.

My non-IS 70-200 is pretty good with the new 2x but at 400mm it's not in the same ballpark as my 400/5.6L. It's a decent trade off to lighten the camera bag. I don't think it would be wise to ditch the 100-400 IS lens and depend on a 2x extender.

-- Lee (Leemarthakiri@sport.rr.com), March 30, 2002.

What would you like to accomplish by replacing your existing 70- 200/2.8 and 100-400L IS with the 70-200/2.8L IS+2TC?

-- Peter Phan (pphan01@YAHOO.COM), March 30, 2002.