Today I got it - the 24-70 L - and was i happy ?
of course. i have just shot a few out in the rain - ( under an umbrella ). looks really nice fantastic colors and contrast.
But as i read this forum about front/back/over/under/and everywhere else than spot on focus problems - one can get paranoid -- shiver... ! 
i post 2 shots taken just now
at 24mm and at f2,8-f4 no problem seeing that is not sharp. not sharpened i photoshop - just adjusted levels .
can someone comfort me and say - this is just the way oit is ?
smile.




