does anyone here have this combo.if so how do you like or dislike ,i going to pickup this lens tomorrow but before i do i would like some input / comments from the forum.also how does it work with a convertor 1.4 / 2X will i loose a lot of it's quality / sharpness..i like my 28-135mm IS but i want better quality glass ..thats why i also asked about the convertor cause it only goes to 70mm.. from what i have read in reviews on other site's this lens kicks butt, two thumbs up..but i would like to here from some one that has this combo...and can someone post a pic. with this lens / 10D
thank you
luis

