« on: February 03, 2012, 05:15:03 PM »
Crapking's idea is really good
I own the 70-200 2.8 is ii and i use it on a 50D. I also tried the 70-200 4 is that a friend owns. Now what you choose depends entirely on you, where you want to use the lens and why. Of course the 2.8 is ii is better but also more expensive, heavy and large. The 4 is looks like a toy compared to the 2.8 is ii, but is much lighter, smaller and less expensive.
Now, if you are going to use the lens for yourself, for your soul, choose the 4 is, because it will be much more easy to take it with you and use it. Doing this the chances to use the new lens will increase dramatically and you will be happier with the new acquisition.
If you are going to use this lens for professional purposes, taking photos not only for you but also for other people, the things change. This is not 100% true, there are also exceptions. But if you have to deliver photos to a client, you have to do it in the best way possible. Now I do not say that the 4 is does not perform... it does, and it does it very well.
If you need a long lens just for portraiture buy the 135 L. It is great. I also tested it. I like the quality it delivers and the lighter package it comes in. Superb lens.
It all depends on you, what you want this lens for.