Sigma AF 70mm f/2.8 EX DG Macro

Extremly clear focus. Beautiful colors. Easy to use. I wanted to experience macro photography. Extremly clear focus. Beautiful colors. Easy to use. I love this world of macro photography. Sigma has developed an excellant product. If you have not experienced it do not deny yourself and get the best you can. No dislikes. I have no other macro lens to compare to.

SIGMA AF ZOOM LENS Sigma lenses are all well konw for its quality and dependability. This lens is depensable, light weight and great results. All photos taken with this lens are great, focus and contrasty. The price in Ebay was a bargain and I can use it with the Minolta Maxxum 7000 or with the Sony Alpha. Very happy with the purchase.

One Major Flaw with the 24-70 f/2.8 HSM To begin with I think the optics/sharpness of the Sigma 24-70 f/2.8 HSM lens matches or exceeds the Canon equivalent.The only reason I can not give this amazing lens an EX+ rating is the annoying fact that when you shoot directly down and over an object or subject the combined weight of the tele housing and lens elements cause the lens to drift forward and out of the selected mm. zone, if on manual focus it will consequently drift out of focus.At the 24mm or 70mm position it fits snug,however when you move into the 40-60 zone the problem becomes instantly apparent.I have since learned that most if not all of the Sigmas 24-70 f/2.8 HSMs have this design flaw.It is not simply a matter of servicing.If you buy one new this may not be a problem at first,but it just a matter of time.Personally I shoot in a documentary style and it rarely if ever is a problem for me but if you are choosing this lens for copy work or aerial work...You're screwed,big time.Read full review