I have both and they both have their place.


If I am going to put it on a tripod I am going to use the 180mm. It has better background blurand if you are setting up a tripod outside in odd situations it deffenitly helps to not have to get close. It produces nice sharp pictures.


I have the 100mm as a carry around lens. If I have to get close hand held I perfer it. The back ground blur is not as good as the 180mm. If I am going to try and chase down a bug or butterfly that you do not have time to set up a tripod on it is better. It does other things well to, including potraits.


Both can produce great pictures.


But where was the anouncment today for a 180mm macro with IS. Announce that and we have somthing.