<span style="font-family: 'Verdana','sans-serif'; color: black; font-size: 8pt;"]In my experience, the 24-105 is the sharpest I have seen compared to the 17-55 f/2.8 IS, and the 24-70 f/2.8L.<o></o>


<span style="font-family: 'Verdana','sans-serif'; color: black; font-size: 8pt;"]The only down side of the 24-105 is that its an f/4 lense. (technically you can compensate it via shutter/ aperture /iso combinations to gain an extra stop)


<span style="font-family: 'Verdana','sans-serif'; color: black; font-size: 8pt;"]<o>I use the 24-105 about 40% of the time too!</o>


<span style="font-family: 'Verdana','sans-serif'; color: black; font-size: 8pt;"]<o></o>


<span style="font-family: 'Verdana','sans-serif'; color: black; font-size: 8pt;"]<o>-e</o>
<p class="MsoNormal" style="margin: 0in 0in 10pt;"]<o><span style="font-family: Calibri; font-size: small;"]</o>