Sigma Macro 150mm F2.8 EX DG HSM (106-101) boasts Optical Stabilization (OS) which is critical to equipment sporting this focal range and is now splash-proof. Offering the latest optical design technology this lens remains a large aperture medium macro lens ideal for shooting the smaller things in world that exists virtually unseen.
A macro lens is one which will focus on a subject close enough to render it "life-size" on the image plane in your camera. It also has a "flat" field" front lens element so that it can shoot images of flat objects such as artwork or postage stamps and be tack sharp all the way across the image. With HSM (Hyper-Sonic Motor) a quiet & high-speed auto focus is ensured. It provides extremely high optical performance from infinity to 1:1 Macro.
Three SLD (Special Low Dispersion) glass elements provide optimum color correction and sharpness throughout the entire range and Super Multi-layer coating reduces flare and ghosting. It has superior peripheral brightness and provides sharp and high contrast images even at maximum apertures.
The OS offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible. It is also compatible with Sigma APO Tele Converters. Ideally suited for taking pictures of insects or other small creatures, but it is also the perfect focal length for facial portraits rendering the best perspective of the human face. This greater distance also allows the photographer more flexibility in lighting the subject with natural light reflectors.
I love shooting pictures of insects, birds and flowers. Getting use to being further from my subject has taken some time for me with this Macro. It definitely has it's advantages like not spooking little creatures. The crispness of the pictures/subject taken with this lens are utterly amazing. I use it with my Nikon D80. It is heavy, but the lens is well built, no lens creep like I feel with some of my Nikon lens.
I used this lens for a macro photography class. Wow, I can't say enough great things about it. It performs amazingly with the sharpest, clearest close-up pictures I've ever seen. It has a little bit of trouble finding it's focus at times. But the pictures I got from that class were outstanding. It has a very solid construction, if a bit on the heavy side. But then again, I'm used to using my little 40mm f/2.8 macro lens, which doesn't compare in performance.
I recently had this lens serviced by Sigma due to autofocus issues (back-focus) I been seeing on this lens and another, Nikon 80-200, on my D7000. The camera shop used Fine Tune to dial adjust the back-focus and said the Sigma wouldn't respond to it, in either direction ( - or + ). They recommended it send it Sigma and agreed, camera shop sent it off for me. The warranty work was done fairly quickly, even during Christmas holidays, 15th it got shipped and got it back on 27th. Sigma had to replace the circuit board and the image stabilization. Good thing this has a 4-year warranty, too bad for no free shipping to Sigma, $30 for me. Other than that it seems to be a pretty good lens, sharp pictures. Definitely check out your lens to make sure the QA didn't drop the ball, I hear they gotten better but I'm going to remain doubtful. I'd recommend it for the 150mm range but then if it isn't needed and perhaps a 105mm would suffice, then I wouldn't recommend it.
This lens is amazingly sharp and offers a level of focus that few zooms can match, even at f2.8. It is an excellent macro that allows for detailed exploration of the small side of things. But because it's a 150mm, you don't need to get as close to use it's macro capabilities. I've also found it to be a great lens for interior shots and low light. Very few telephoto zooms get to 2.8 and even fewer are this sharp. That means I've done some intimate portraits with this lens while keeping far enough away that the subject hardly notices the intrusion. And having image stabilization means I can get great results hand-held. The only drawback is that the lens sometimes takes a little longer to focus, especially in low light. This isn't unusual, most macros are a bit slower to focus. So buy the lens knowing that it won't be as quick to nail focus as a non-macro, especially a non-macro Canon L. This lens does the things it was built to do and does them excellently well -- with sharp focus, great contrast and lovely bokeh. That's all you can ask from any lens.
GREAT LENS! Focus is dead on. Lens is sharp. Made of metal. I used it for about 3 weeks and love it every time I use it. Bokeh is smooth at f2.8, but not too pleasant at f5.6 and smaller. Focus is decently fast for sports when you put the limiter on. The only thing that I don't like is the Sigma finish. It can get scratched easily.
I've mostly used this for macro, which is why I bought it, and there the focus is slow & I often go manual focus because of it. Not sure of focus behavior in normal use, but suspect focus will not be quick enough for a lot of action photography.
Excellent for macro. Allows 1:1 life size shots. i use it for wildflowers and love it. Might not be good for sports due to the wide focus range. It might take awhile to focus on action. However, it does have some focus limits that might be helpful.
I have had the lens 4 days, taken over 200 pictures. I've been impressed with the speed of the lens focus. The built-in stabalizer does a good job so you can use higher apatures. I have been doing close-up work on dragonflies, butterflies, etc. Did not buy this lens for sports or action shooting but should work fine because it is fast focus and sharp. For a 150 lens the weight is just right, not too heavy. I have a Nikon D90 and many other Nikon lenses and this lens preforms just as well.