Hi Gang.......... After doing a little research I have found that both Canon and Tamron make a 28-200mm lens. They both have about the same variable aperture (3.5-5.6) They sell for about the same price........ $300.00 Makes me wonder what is the better lens for my Canon 10D? (Don't tell me to buy a L series lens......don't have the bucks for that!) Thanks Russ R.E. Baker Photography rebphoto@xxxxxxxxxxx Feed a Cat... Starve a Fever........