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Sigma4.5mm f/2.8 EX DC HSM Lens for Canon Digital SLR
 
4.7

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Strong construction (4)
  • Clear optics (3)
  • Easily mounted (3)
  • Firm mount (3)

Cons

    Best Uses

        • Reviewer Profile:
        • Photo enthusiast (4)
        • Was this a gift?:
        • No (3)

      Reviewed by 6 customers

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      Displaying reviews 1-6

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      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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        (9 of 10 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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