Advantages: Image quality. Consistent aperture. Internal zoom/focusing. Build. Great with converter.
Disadvantages: Needs a large (tall?) outfit bag. Quite heavy. Quite large.
I purchased this lens a little over a year ago and it has never failed to impress me with it's superb image quality.
This is a fairly large and heavy lens and comes with a sturdy rotating tripod collar. This is both useful and in my opinion, essential. ...
davecham 26.12.2008 · Read full review
Ciao members have rated this review on average: very helpful
Review of Sigma EX telephoto zoom lens - 100 mm - 300 mm F/4.0