Overall, this is one of the best budget telephoto zoom lens that is in production. I bought this to compliment my Canon 350D, and it has treated me well. The alternatives all leave much to be wanted.

#1 Price; Without a doubt this is the star shining upon this lens; At less than $200, this lens provides fantastic results, #2 Macro Mode; With a 1:2 macro mode, this is not true (1:1) macro, but in this price range, there is nothing near this lens.

#1 Focusing, a) Speed; The focusing motor tends to be a little sluggish, especially when at the end of the focal range, b) Accuracy; I am fairly certain that this ties in with the speed of the focusing, but I find that probably 1 in 10 shots is slightly misfocused, c) Sound.

In this day and age, it's easy to write off any 'slow' telephoto zoom lens with an f/4-5.6 maximum aperture that doesn't have optical stabilisation. However, the Sigma 70-300mm f/4-5.6 APO DG Macro still packs some impressive features at the price.

In this day and age, it's easy to write off any 'slow' telephoto zoom lens with an f/4-5.6 maximum aperture that doesn't have optical stabilisation. However, the Sigma 70-300mm f/4-5.6 APO DG Macro still packs some impressive features at the price.

Throughout modern times the Sigma 70/75-300mm APO variants were always positioned as a supposedly superior alternative to the base offerings of the genuine manufacturers in this lens group. The latest incarnation is the Sigma AF 70-300mm f/4-5.6 DG APO macro.

Value for money. Dont expect miraculous build and experience. For the money, this is hands down the best lens you cant get in this category.

I bought this lens in the pentax k mount for my K10D. I have to say that for the most part I'm mostly disappointed with the autofocus of this lens which tends to hunt in all but the brightest conditions.

the price, f4 at 70mm makes for a useful portrait lens

poor image quality after 200mm. auto-focus very disappointing

It is a good lens that fit my budget. I put together a low end Canon SLR kit with a 50D and I felt this lens is more than sufficient for my photographic abilities. The lens is light weight, easy to attach and looks good on the camera. I tried a few macro shots and they came out really well.

Consistent Output; Easily Interchangeable; Lightweight; Nice Bokeh

Blurry Focus; Lens Creep; Poor in Low Light; Slow Focus; Weak Casing

A wonderful lens for the Canon Digital SLR, this features the much appreciated macro function. Picture quality is top class and it enables great candid portraits. It also has a great zoom and at this price, is a total class product.

This lens is one of two virtually identical offerings from Sigma in the extremely popular 70-300 category in which almost all manufacturers have at least one contender. Although still in the budget sector, this one, the APO version, is the better of the two offerings.

Excellent optical performance for price; Good close focus ability (1:2; Light enough to carry all day

Long extension when close focussed and zoomed; Front element and extension rotates during focussing

The Sigma 70-300mm telephoto zoom lens is compact,to easily fit in the camera bag. The feel of the Sigma lens was designed with the hand in mind. I was surprised to know the price, being very affordable. I needed to use a lens that would take my eye to 300mm when the boat takes us whale watching.