Ok, I've wanted a macro lens for some time now and finally decided to buy one. I was planning on getting the canon 100mm macro Canon 100mm f/2.8 USM Macro Autofocus Lens 4657A006 B&H Photo
Then I saw this 180mm tamron lens Tamron 180mm f/3.5 Macro Autofocus Lens for Canon EOS AFB01C700 and it's not much more money. Other than focal length can anyone tell me which lens would be better and why.
Then I saw this 180mm tamron lens Tamron 180mm f/3.5 Macro Autofocus Lens for Canon EOS AFB01C700 and it's not much more money. Other than focal length can anyone tell me which lens would be better and why.


