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

   Brand: Sigma

   Model : B00005RKSS

   Customer Rating :

   List Price : $450.00


   Sale Price : $349.00


Sigma 28mm f/1.8 EX DG Aspherical Macro Large Aperture Wide Angle Lens for Canon SLR Cameras Feature

  • Macro focusing capability with fast F1.8 maximum aperture
  • Minimum shooting distance of 20cm (7.8 inch)
  • Dual-Focus (DF) mechanism


Sigma 28mm f/1.8 EX DG Aspherical Macro Large Aperture Wide Angle Lens for Canon SLR Cameras Overviews

Features minimum focusing, down to 20cm/7.9inches (reproduction ratio 1:2.9). The iris diaphragm has 9 diaphragm blades to obtain beautiful out of focus image. It incorporates the floating focus system and the use of two aspherical lens elements to minimize distortion, spherical aberration and astigmatism. The lens incorporates minimum vignetting optical construction in order to obtain adequate peripheral brightness with open aperture. Internal focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood and easy use of polarizing filters. The lens also incorporates a dual-focus mechanism. It is easy to hold the lens, since focusing ring does not rotate during auto-focus, and yet provides adequate torque of the focusing ring during manual focusing of the lens. The lens materials used in this lens are lead and arsenic free ecological glass.


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Sigma 28mm f/1.8 EX DG Aspherical Macro Large Aperture Wide Angle Lens for Canon SLR Cameras CustomerReview

I have been a fairly serious hobbyist photographer for about a year now, since purchasing my Canon DSLR. Many hours spent researching photography in general and lenses in particular have led me to this lens. From what I’ve found online and on Flickr, it doesn’t seem to be very well-known, especially compared to this other Sigma lens, which I also considered:Sigma 30mm f/1.4 EX DC HSM Lens for Canon Digital SLR Cameras. In other words, this purchase felt more risky to me, but I think it turned out quite well.

Pros:
-Future-Proof: If you’re considering this lens, you most likely have a “cropped” sensor DSLR. All but the most expensive DSLRs have them. Many new lenses – “DC” lenses for Sigma, “EF-S” lenses for Canon – will ONLY fit on cropped-frame cameras. In the future, if and when full-frame cameras become cheaper and more popular, these lenses might not fit new cameras. This “DG” lens, however, will fit on both cropped- and full-frame cameras (albeit with different focal length equivalents – it takes wider shots on full-frame).
-Depth-of-Field: I’m loving the small DOF on this lens. It’s nice and smooth.
-Low-Light Photography: With its large aperture, it’s fast in low light. Quite fun if you’re used to slow zoom lenses!
-Construction: Looks nice, feels nice, and the focus ring has just the right amount of resistance.

Cons:
-Auto-Focus: The AF could be faster, but that is to be expected without a hypersonic/ultrasonic motor. It also sounds more gravelly than I’m used to, which is a little unnerving, but it seems fine. I have not seen any AF accuracy problems.

Other Considerations:
-Size/Weight: It’s hefty, but it’s nothing compared to some of those telephotos out there. Admittedly, that’s an apples-and-oranges comparison, but still. I love the size and weight; your mileage may vary.
-77mm filter thread size: Again, it’s big. Filters can be expensive. On the other hand, it looks and operates like serious business.
-Image Quality: I am very pleased with the quality, but I’m no studio photographer. I don’t take pictures of test charts for fun.

Thumbs up!

*** Product Information and Prices Stored:Sep 07, 2010 21:51:02

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