Quote Originally Posted by Jim


If yours is in fact 28-135 IS USM lenses...


Canon does not and has not ever made a 28-135mm lens without IS. So, if it's 28-135mm, it is an IS USM lens. There were several flavors of the 28-105mm lenses (with and without USM, and a Mk II for one of those), but none of them had IS.





Quote Originally Posted by Jim


I was unaware that there were ever "IS" lenses used as kit lenses.

<div>Yes, IS lenses are used in kits - in fact, in just about all kits sold today. The currently available Rebel kits, from the T1i down to the XS, all ship with the EF-S 18-55mm IS lens (and/or the EF-S 55-250 IS lens). Currently available xxDs and the 7D are bundled with the EF 28-135mm IS USM lens, and the 5D MkII 'kit lens' is theEF 24-105mm f/4 L IS USM lens. </div>