No comments about Sigma 100-300mm f/4 EX DG IF HSM APO Fast Aperture Telephoto Zoom Lens for Minolta and Sony SLR Cameras.

1 comments about Sigma 28mm f/1.8 EX DG Aspherical Macro Large Aperture Wide Angle Lens for Canon SLR Cameras.

1. I now have bought two lenses that were not designed for the smaller digital camera sensor, and both consistently fail to autofocus, the Sigma 28mm and the Canon 50mm f1.8 II, both relatively inexpensive lenses, and both designed for film cameras I believe. I was able to get both to focus most of the time by using my "live view" focusing, but it is slow and you can't use the viewfinder. I just couldn't justify keeping this large, heavy, no doubt very high quality lens if it was going to be that difficult to use.
   The kit lens that came with my Canon XSi focuses much more reliably, maybe because that lens is designed for small sensor cameras.

1 comments about Sigma 70mm F/2.8 EX DG Macro Lens for Sony Digital SLR Cameras.

1. While of fairly substantial heft, the optics on this lens, as noted in many reviews, are terrifically sharp. If you judiciously use the focus limiter, it's perfectly suitable (actually even excellent) for portraiture. The fast aperture also helps keep ISO (and therefore noise) low, too.
   
   The detail in macro-closeups is truly remarkable!

2 comments about Sigma 180mm f/3.5 EX DG IF HSM APO Macro Lens for Canon SLR Cameras.

1. I've only had this lens for a few days, but I am happy with it so far. Could even capture two ants attached to the wing of a butterfly. Getting close, as in the 18" minimum distance, works as described. Auto-focus does hunt a little when close to object, had to manual focus. Great lens for the money.



2. After a couple of weeks with this lens on my Canon 40D, I like it more all the time. I've found that the sweet spot on mine, aperture-wise, is about f/22. That gives me the most DOF and clarity combination for 1:1 macro shots. I would have loved to be able to use it at it's full f/32, but my test shots with it show that 1:1 shots at that aperture lack the clarity I'm trying to achieve in my macros.
   
   Extra light is a must if you want any DOF to speak of, so if you don't have a ring light or other ways to deal with it yet, you'll want to keep in mind that there's a cost associated with that aspect of this as well.
   
   As a 180mm prime lens, it performs well outside of the macro range too. I'm getting good, crisp shots throughout, and the AF works pretty fast.
   
   It must be compared to the Canon 180mm macro lens, as that's really what it replaces. For that, all I can do is point to the many reviews on the net, as I don't have the Canon. I bought this after slogging through those reviews and finding most all of them favorable towards this lens as a great alternative to save money and still get a great shot - Maybe not as great as the Canon, but not generally enough difference to matter.

3 comments about Sigma 70-300mm F/4-5.6 DG Macro Telephoto Lens for Nikon.

1. I was really excited to get this lense. I have just recently got into photography. I was not disappointed. Works great from what I can tell.....not a pro by any means but does what I need it to do.



2. We received the lens quickly after we placed the order and began using it immediately. It was easy to use, attached to camera quickly, and the pictures we took with it were spectacular. Snapped some shots at the USC football game that made it look like we were right on the field. Took some pictures of a plane taking off that made it look as if we were flying in the air next to it. Pictures were sharp, clear, and the zoom is fantastic. I wished we had it sooner!! Can't wait to use it over the holidays. I would recommend it to anyone who's considering a zoom lens. It does exactly what it promises and our pictures are so much better for it. And it's quite reasonably priced. We're extremely satisfied with it!



3. I am still a novice with dSLRs and I was looking for a lens to bring me out of kit lenses catagory and provide better range for wildlife photograhy. Best of all, the price was well below the cost of a similar Nikon lens, with VR.
   
   Overall, I am very please. I live within a few miles of a national wildlife refuge and as soon as the lens arrived, I took it to the refuge for a test run and I was pleased with the results. I am still not sure if I want to take the lens on trail hikes, but the images are sharp, the color is good and I did not need to spend a great deal of time in Photoshop correcting lens error. For the price, you can't beat it.

No comments about Sigma 30mm f/1.4 EX DC HSM Lens for Sigma Digital SLR Cameras.

1 comments about Sigma 55mm UV (Ultra Violet) Multi-Coated EX Glass Filter.

1. I bought this with the intention of replacing it later for a Hoya, but found it surprisingly adequate.

1 comments about Sigma APO 70-300mm F/4-5.6 DG Macro Lens Sony Alpha DSLR A700, A350, A300, A200, A100 SLR Digital Camera.

1. I really like this lens -very versatile. I use it on a Konica-Minolta 5D, which I will upgrade to a Sony when they improve the noise issue. Back to the lens - sharp as a tack. Best aperature is about 5.6 at the wide end for sharpness, and f8 at the long end. Macro mode is rather awsome - good stand off, and fast enough to blur the background. Auto focus is quite fast and accurate, though not as quiet as a Nikon, for instance. With a 1.4x extender it provides an excellent "reach" for little money. Did I mention it is a superior optic? Nicely done, Sigma. Recommended.

No comments about Sigma 55-200mm f/4-5.6 DC Telephoto Zoom Lens for Pentax and Samsung Digital SLR Cameras.

No comments about Sigma 18-200mm f/3.5-6.3 AF DC II Lens for all Nikon DSLR Cameras.