Tareq wrote in post #15444398
Thanks, but i can see 0 reviews and "No ratings" words there, so how can that help me?
Well, there is someone on another site is very happy with his Sigma 180mm 3.5 old version non OS, so i think this 180mm 2.8OS will be a big improvement over the older one, and macro lenses in general are sharp regardless of focal length.
The review is right there under the tabs. Here is the start of it (fair use)
"The Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro is an update of a macro lens produced by Sigma for several years, the 180mm ƒ/3.5. The new lens is a complete overhaul of the design: a new layout of elements and optical stabilization making up the list of changes.
The Sigma 180mm EX was designed as a full-frame lens, and on ''sub-frame'' APS-C sensor-based camera bodies the lens provides an equivalent field of view of either 288mm (Canon) or 270mm (Nikon and others). The lens is available in Canon, Nikon, Sigma and Sony mounts.
The lens takes very large 86mm filters, ships with a round lens hood, and is available now for around $1,700.
Sharpness
The Sigma 180mm ƒ/2.8 EX DG OS HSM APO Macro provides a very sharp image even wide open at ƒ/2.8, but for maximum sharpness you need to stop down to ƒ/5.6. There are very light traces of corner softness at ƒ/2.8, which settle down nicely at ƒ/4, and all but disappear at ƒ/5.6."