Bob, from your above comments I get the impression you find the 180 less able at infinity or very low magnification compared to it's closeup performance - am I reading you right?
Lester,
Yes, that is how I see it....at least that's what I see from my copy and I haven't had the opportunity to try others. When I first got it I thought it may well double as a good prime....one step down from the 300/4. Having shot a few tame birds around the garden I can see that it doesn't compete in this area (that was one a 400D at the time). The nearest comparison I have is the 70-200/2.8 and it is debatable which is the best around 180mm f5.6.
As a macro, I find it to be stunning at 1:1 and even with a 1.4x and tubes on.
I have to confess that I'm struggling to get the hang of the ring flash with it but that's simply lack of practice and not least a little bit of frustration.
I've only had it about 5 months and it does take practice but the change to a 5D has instantly "upped the anti"....the two things were made for each other.
As I stated in the original post.....this is only an opinion based on my gear and my limited use but those early shots mean it doesn't come out for the long stuff. I guess others may have a better copy or more user skills than I have and define their 180L as "one of if not THE sharpest lens canon makes"...I'm not trying to belittle this statement, it's just that mine cannot be described thus.
Bob





