« on: June 15, 2012, 06:52:12 AM »
and was also heavily considering a 70-300 DO which I still would love to give a good test, especially on something like a 5DIII, etc., with it's great low-light performance, this lens can be found used for fairly cheap
I bought one used, with the idea that it's small size and good range would make it a great combo with the 24-105 (the two lenses are identical in size). I wasn't happy with the IQ of the 70-300 DO, and ultimately I sold it (for the same price I bought). Even with boosting the contrast and sharpness in post, it wasn't up to the quality of my other lenses. Side note, the zoom creep was pretty bad.
I'm still considering the 70-300L as a convenient adjunct to my 100-400, though.