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Author Topic: EF 300 f/2.8L IS vs EF 400 f/4 DO IS on 1D Mark III  (Read 1947 times)
achrisproduction
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« on: June 06, 2009, 12:00:34 AM »
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Thinking to get one of this tele, which one is better?  Surely 400 DO is better for handheld.  
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DaveCurtis
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« Reply #1 on: June 06, 2009, 12:24:50 AM »
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I use the 400 f4 DO as my "hand held" wildlife lens. It's lighter than the 300 f2.8 and has slightly lower contrast due to the DO design. You need to up the "carity" if you develop in Lightroom.  Resolution is very good.

I bought it after reading Michael's review which I must say was spot on.

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stever
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« Reply #2 on: June 06, 2009, 09:31:21 AM »
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with a 5D and 40D i found the 400DO to have about the same resolution as the 300 2.8 with 1.4X extender.  i've used the 400DO on the 40D with 1.4x but found it was seldom necessary and there's a noticeable loss of sharpness

i've got another one coming from lensrentals.com to use in Tanzania on the 5D2 - planning to run some tests before i leave as it seems to me that the 5D2 loses proportionally more resolution with the 1.4x than the lower resolution cameras, even using micro adjustment

the 400DO is quite useable hand held while the 300 2.8 is not for me

i highly recommend renting one from lensrentals.com before making that kind of investment
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bhowdy
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« Reply #3 on: June 07, 2009, 08:10:02 AM »
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I have a little experience with the OP's question, so here goes my 2 cents worth.

First I use both the Canon 1D MarkIII and 1Ds Mark III bodies. I use my 1D Mark III exclusively for wildlife, BIF's, etc.
I have rented the EF 400mm f/4 DO IS USM twice, and the 400 f/2.8 IS once. I wanted to make sure before purchasing a true super telephoto.

The 400 DO is a terrific lens, not in the same league as the 400 f/2.8, but then it does not weigh anywhere near the same either. The 400 DO can be comfortably hand held for extended periods of time. The image quality without an extender is very good. I found the image quality degraded with the use of tele extenders though.

In my opinion the 300 f/2.8 is the "mack daddy" of the Canon super telephoto lenses. This lens is terrific! It takes tc's well, even the 2X. Focus speed. low light use .... awesome lens. It is however a little short on reach for smaller birds, etc. it's also a heavy lens, so some folks do not care for it based on that issue alone.

I ended up with the 300 f/2.8 IS and the 500 f/4 IS as my primary long lenses, with the 100-400 as a kind of a fill in lens.

Having rambled all over the place let me get back to the specific question;
When considering the 300 f/2.8 versus the 400 DO     IF the major consideration is "hand holdability" then the 400 wins easily. You don't mention what your primary photo subject is that requires the additional reach, so I am guessing or being general here.

For simple pure reach get the 400. For a lens that is superior in my opinion and takes tc's better get the 300. I personally feel that the 400 DO is overpriced especially when compared to the 500f4.

One thing that I wondered about when debating on the 400 DO is why it was not designated an "L" lens? You would think for a lens that costs about $5,500.00 new it would have an "L" tag. Something else to consider is the resale value .... will the 400 DO hold up in value? I don't see many that come up for sale on the typical sellers forums, so it is hard to judge that issue for now.

Just my humble opinion .... hope that it was of some help.
« Last Edit: June 07, 2009, 08:11:40 AM by bhowdy » Logged
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