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Canon EF 100-400mm f/4.5-5.6L IS USM

ef100_400l_1_
Review Date: Sep 5, 2009 Recommend? | Price paid: Not Indicated

 
Pros: price,IQ,push pull zoom
Cons:
None as yet

This is my second 100-400 since upgrading to a 1DmkII. My first did not perform as well as I expected when I had a 20D tending to search a lot in AF.
I decided on a 100-400 after testing against a 400f5.6 at the local store. Even the staff were astounded at the resulting shots both with & without a 1.4 TC. IQ is so good I have not had the 1.4 TC off since purchasing late 2008 & with the 1D mkIII is an awesome combination.It gives me the opportunity to use my 70-200 f2.8 more. I had thought of changing to the prime because I was not using my 70-200. Now I have a 70-200 & a 140-560 + corresponding crop factors depending on which body is used. I like the push pull zoom when focussing on small birds as it allows a quick lock on to the subject.This lens works for me.


 
Canon EF 100-400mm f/4.5-5.6L IS USM

ef100_400l_1_
Review Date: Mar 24, 2008 Recommend? yes | Price paid: Not Indicated | Rating: 8 

 
Pros: IS,push-pull,versatility
Cons:
Hunts in poor light & busy backgrounds on 20D.

A sound all round performer in reasonable light. I purchased this lens for birding sold it & now have 400 f5.6 prime.In less than than perfect light my copy had difficulty locking on to small birds in trees on the 20D even after being sent in to Canon. A fellow shooter had 300IS f4 with 1.4 TC which had rattled off a few frames before I acquired focus. However I loved this lens for candids in India especially on the Ganges. Push pull zoom not an issue & neither was dust in the 12 months I had this lens. If a pro I would have one as part of my arsenal along with a 70-200 &/or 300 f4/2.8. As a hobbyist I prefer my 70-200 f2.8 & 400 prime. My only regret is that I did not give this lens a go when acquiring my 40D & prime as I sometimes wonder if it would have performed as well for me as it does for others.