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Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR USA

You Pay: $899.00
Product Highlights
  • Circular Fisheye

The Sigma 4.5mm f/2.8 EX DC HSM Lens is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. It is well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality. 

Having the HSM (Hyper Sonic Motor) incorporated into this lens allows for focusing to be quieter and more responsive. This lens provides the equivalent focal range of approx. 7.2mm when used with a Canon digital SLR camera (*).

DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras.

Note! (*) Not suitable for 35mm film SLR cameras or for any digital SLR camera with image sensor bigger than APS-C size, e.g. 5D, 1Ds, 1Ds Mark II or Kodak Pro SLR/c.

The EX lens series denotes excellence of engineering and new technology.
Super Multi Layer (SML) coating reduces ghost and flare.
Special Low Dispersion (SLD) glass provides effective compensation of chromatic aberration.
The HSM (Hyper Sonic Motor) ensures fast and quiet autofocusing and allows full-time manual focus override by rotation of the focus ring.
Performance
Focal Length 4.5mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Type Canon EF-S
Format Compatibility Canon (APS-C)
Angle of View 180°
Minimum Focus Distance 5.3" (13.46 cm)
Magnification 0.16x
Maximum Reproduction Ratio 1:6
Elements/Groups 13/9
Diaphragm Blades 6
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Environmental
Physical
Filter Thread None
Dimensions (DxL) Approx. 3.0 x 3.1" (7.62 x 7.87 cm)
Weight 1.03 lb (470 g)
Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR
  • Front & Rear Lens Caps
  • Lens Hood
  • Lens Case
  • Limited 1-Year North and South America Warranty Against Manufacturing and Workmanship Defects.
  • Limited 3-Year U.S.A. Extended Warranty Extension Against Manufacturing and Workmanship Defects.
  • REVIEW SNAPSHOT®

    by PowerReviews
    Sigma4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR
     
    4.6

    (based on 7 reviews)

    Ratings Distribution

    • 5 Stars

       

      (4)

    • 4 Stars

       

      (3)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Strong construction (5)
    • Clear optics (3)
    • Easily mounted (3)
    • Firm mount (3)

    Cons

      Best Uses

          • Reviewer Profile:
          • Photo enthusiast (4)
          • Was this a gift?:
          • No (4)

        Reviewed by 7 customers

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        Displaying reviews 1-7

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        (1 of 1 customers found this review helpful)

         
        4.0

        it catches all the details

        By Freddie

        from New Jersey

        About Me Semi-pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Fast / accurate auto-focus
        • Rugged
        • Strong Construction

        Cons

        • Heavy

        Best Uses

        • Landscape/Scenery
        • Wildlife Photos

        Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

        So I work a lot and photography is my tool for reminding I'm a much more interesting person outside of my work. I was a paid photographer at one point, maybe I might do it professionally in future. So I was interested in this lens since I could finally get this effect on my smaller sensor camera. For instance I photographed this very old tree's roots in the foreground, the mid-ground was full of orange leaves, and the background capture the whole entire tree top. By the way, I was only 10' from the base of this tree. The lens still picked up on a fair amount of detail since its quite sharp, I was honestly surprised by this. It allows you to compose images that encapsulate all of nature's most stunning details. If your not into nature or not willing to go through the trials and tribulations of developing a well composed image its not a good lens for you. On the bright side the auto focus is really quite and silent, so you can do some nice close ups on animals.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        The best for APS-C cameras

        By Douglas Cunha

        from New York, NY

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Clear Optics
        • Easy To Use
        • Firm Mount
        • Strong Construction

        Cons

        • Soft Corns

        Best Uses

          Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

          This is the most extreme fish eye lens you can get for a APS-C camera. With a full 180º view, you get a full circular image, like the Sigma 8mm FE on a full frame câmera.
          Good lens quality. Luminous, fast and an excellent minimal distance of focus.

          • Was this a gift?:
          • No

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          5.0

          The best way to change your world!

          By Catherine

          from Ottawa, Canada

          Verified Buyer

          Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

          This lens is absolutely glorious... it just transformed my 7D into the best artistic tool I can put my hands on. Thank you Sigma for creating a lens perfectly fitted for me!

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          (10 of 11 customers found this review helpful)

           
          4.0

          A fun lens for special effects

          By bdmsb

          from Santa Barabra, CA

          About Me Photo Enthusiast

          Verified Reviewer

          Pros

          • Easily Mounted
          • Firm Mount
          • Full round fisheye
          • Strong Construction
          • Very wide field

          Cons

          • Autofocus problems
          • Not tack sharp

          Best Uses

          • Artwork
          • QTVR
          • Special effects

          Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

          I wanted a full round fisheye for my Canon 7D, and this is the only one I could find. It seems well made and I'm content with it, though there were issues. Specifically, the 7D was unable to get correct autofocus. After an autofocus, if I turn on Live View and zoom in, the focus can be seen to be blurry. A Live View autofocus will correct it. I wrote to Canon and they said it was probably the lens since it wasn't made by them and I had no trouble with other Canon lenses. I wrote to Sigma and they said it might be an adjustment problem and I could send them the lens for calibration. [...]The second lens has the exact same behavior.Canon says the Sigma lens must not use their autofocus signals correctly, and the lens was probably designed before the 7D was sold. But my Canon 40D body has the same problem. It seems likely the camera's focus sensors have trouble with the extreme wide angle of a full round fisheye. Live View uses contrast comparison on the image sensor instead of the usual focus sensors. Since this works fine, I'm content to use the lens this way. My application is round landscapes and QTVR panoramas; working in Live View for this lens is okay. It's pretty amazing how the stitching software can take three round fisheyes and produce an undistorted 360 degree panorama. The extreme field of view captures the zenith and the nadir. If you just wanted a very wide angle, you'd probably get better results with a rectangular fisheye that used the whole frame (like the Sigma 8mm). But if you want a full round, this is the only way I found to get it on an APS-C sensor. When the images are blown up they're not tack sharp, which you might expect in a lens at this cost. But this is a special type of image and, as I said, I'm content.[...]

          • Was this a gift?:
          • No

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          (3 of 4 customers found this review helpful)

           
          5.0

          What a blast

          By Washboy

          from Idaho Falls, ID

          About Me Photo Enthusiast

          Verified Buyer

          Pros

          • Clear Optics
          • Consistent Effect

          Cons

            Best Uses

              Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

              I have been shooting sport photos for a while now and was looking for something new to spice up the images. I wasn't sure how I could use the fisheye but now I have had a chance to use it... wow. I can get some excellent images from a perspective I have never used before. It has taken me a bit of practice and it has been worth every second. I love this lens.

              • Was this a gift?:
              • No

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              (3 of 4 customers found this review helpful)

               
              4.0

              "Fun lens"

              By Antu

              from Doha, Qatar

              About Me Photo Enthusiast

              Pros

              • Easily Mounted
              • Strong Construction

              Cons

                Best Uses

                  Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

                  Great lens for outdoor and even interior/architecture. This is a really fun lens especially on portrait.

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                  (6 of 10 customers found this review helpful)

                   
                  5.0

                  I would buy this product again and again

                  By Nas335

                  from Saudi Arabia

                  About Me Semi-pro Photographer

                  Pros

                  • Clear Optics
                  • Consistent Effect
                  • Easily Mounted
                  • Firm Mount
                  • Strong Construction

                  Cons

                    Best Uses

                    • Artwork
                    • Color Correction
                    • Image Manipulation
                    • Lens Protection
                    • UV Protection

                    Comments about Sigma 4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR:

                    for special architectural effects when capturing a large building. Try composing the frame with an image in the foreground and use the sloping background to enhance the theme. For instance, using a fisheye lens when shooting a tulip field in Holland adds interest when foreground flowers feature prominently and a quaint windmill farm frames the background.

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