which camera and lens combo do you like?

[Fast Glass]

The difference is even bigger than that. To make a fair comparison (same DOF and photon noise), you should stop down the 5DII to f/5.6.


And I suppose we should zoom to 45mm, too, but maybe that's beside the point.

Here you go, http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=116&Camera=474&Sample=0&am p;FLI=0&API=0&LensComp=116&CameraComp= 453&SampleComp=0&FLIComp=2&APIComp=2.


Here is another comparison with the 17-40mm the 28-135mm, http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?FLI=0&API=0&Lens=100&FLICom p=0&APIComp=2&LensComp=116&CameraComp= 453&SampleComp=0&Camera=474


What I was trying to show was the differance if you were to use the same lens at thesame apeture which is typical in birding. But you are also right because when you use a general perpose lens you have to zoom in to maintain the same framing and stop down for DOF.


Full-Frame rocks!


John.