Sigma 70-300mm DG Macro Good Purchase?
(too many new posts in photography section from me but oh well); wondering what the concensus is on this lens. I found three reviews for the non APO version and they say the lens is not bad with IQ being mediocre.
The lens is at a pretty good price of only $170 and the Macro end (200-300) puts things at 1:2 scale. Although I know this isn't a true Macro lens; the reviewers mentioned it is good for capturing larger insects. I also examined the pictures on FlickR taken by these images and am quite impressed at the ability to pick up the detail.
Now here is the questions:
Is the APO version worth the extra $100 (I just want to fool around with the macro and capture further details than my kit lens; move to a true Macro lens when I progress)?
Is the IQ much worse than the 18-55mm EF-S Lens?
Since there is no Image Stabilizer; would I ultimately need a tripod for ultimately all my shots?
Should I opt for the [rfdlink=38]Canon[/rfdlink] EF 80-300mm lens instead (can be had for the same price) with the Ultrasonic Motor and IS; and would I be able to take Macro shots with that?