Help me decide - macro

[mknabster]

I'm trying to decide between these 3 macro lenses in order from highest to lowest price:
http://www.tamron.com/lenses/prod/90mm.asp
http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=155&modelid=11156
http://www.sigmaphoto.com/lenses/lenses_all_details.asp?id=3252&navigator=5

I can't decide, i'm getting this for strict macro work, flowers, bugs, hopefully commercial work eventually. I do like that the Sigma has the f/45 min, but it is 50mm, and i already have a 50mm lens that tales decent macros, even though it's not a macro lens. The Tamron has a better price than the Canon 100mm and looks cooler too :lol:. The Canon and the Sigma both have the same focusing distance, 7.4in. I do like to get close to my subjects, the Tamron has a 11.4 in distance.

What does everyone else think is the best to have?

[Bill Pham]

never use any other macro lenses beside my 100. :D:D
really they all are very good just up to you to figure out if you like the extending element or not and price. oh did you look at the ef-s 60

Bill

[mknabster]

Yea theEF-s 60 is the Canon that is in the list. I'm trying to figure out with is better to have, a longer reach or a shorter one.

[Bill Pham]

i like the longer reach act like a short tele. some bugs just won't let you get close.

Bill

[gasrocks]

You will not be using f45 or even f32 so don't let that sway you much. Too much loss of IQ past f11 or f16 on most all lenses, even good macro lenses.