wes_allen
Feb 13, 2008, 12:40 AM
Views: 3606
Registered: Mar 29, 2002
Posts: 549
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I think I would get the 100-400 5.6L IS, first. You loose a 100mm, but gain IS, and much better optics. From what I have heard, it will take a 1.4 TC OK, but if you want AF still, the TC needs to be a non-reporting one, or you have to tape pins. I use my 300 2.8 with the 1.4/2 TC, and the IQ is great with the 1.4, though you can see a change with the 2.0. Saving my pennies for a 500 f4IS. I have seen guys with 500/600 f4 lenses with the 1.4 and 2.0 stacked. I guess they get pretty decent IQ, but you need a really good tripod and amazing technique to make it work well.
Not sure I would put the 2.0 on the 70-200 though, I think the IQ drops off pretty noticeably.
(This post was edited by wes_allen on Feb 13, 2008, 12:41 AM)
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