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

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

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    (3)

  • 3 Stars

     

    (0)

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    (0)

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100%

of respondents would recommend this to a friend.

Pros

  • Strong construction (7)
  • Clear optics (3)
  • Easily mounted (3)
  • Firm mount (3)

Cons

    Best Uses

    • Landscape/scenery (3)
      • Reviewer Profile:
      • Photo enthusiast (5)
      • Was this a gift?:
      • No (6)

    Reviewed by 9 customers

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    (1 of 1 customers found this review helpful)

     
    5.0

    Amazing Lens

    By Amateur Photographer

    from Los Angeles, CA

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Durable
    • Fast / accurate auto-focus
    • Lightweight
    • Rugged
    • Strong Construction

    Cons

      Best Uses

      • Landscape/Scenery
      • Macro Photography
      • Night Photography

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

      I've thought about buying this lens for a long time but felt I might not get enough use out of it. When the $ rebate was offered in early January, '15 I ordered it from B&H. While it is an $ investment, the quality of the lens and its casing is excellent. Also, what really sets this lens apart from the cheaper fisheye lenses is that it has both automatic focusing and automatic exposure when paired with a Canon APS camera like my 7D. The edge of the circular image does not have distracting colors as I've seen in some examples of photos taken with cheaper APS camera fisheye lenses. Sometimes I get a thin blue circular edge line in areas where the photo is light, but that is not distracting to me. So far I've mainly concentrated on close-up shots (flowers, a person, etc). I normally use the camera by setting the focus point in dead center, so when I put this lens on the camera, my preferred focus point is set for me. There is little exaggeration of the object in the center, but the circular image and exaggeration of the surrounding areas can give a unique and amazing perspective to the photo. I just have to be sure I don't get my hands or feet in photos -- it's that much of a wide angle. While Sigma does not advertise the fact that a 72" front screw-on filter can be used, s filter can be screwed onto the front of the round lens cover attachment that is sent with the lens when its purchased. The attachment simply is pushed onto the front of the lens and pulled off at will. The image with the attachment and filter is still round, but a bit smaller. I'd recommend using a UV filter, especially if you plan to shoot close-up 'macro' shots. That protects the lens and I'd rather scratch and ruin a B+W filter than the lens itself. Photos can be taken with the edge of the lens (or filter) a mere 1" or so from the object and more than once I've brushed the pedals of a flower while trying to take a photo. Likewise, shooting through a glass window, the glass window almost came in contact with the filter. As the center of the lens protrudes outward, without a filter on it's vulnerable to being hit or scratched by objects. As to exposure readings, the lens will 'see' light coming from all around so it is advisable, when possible, to bracket your exposures. Look at the first image on the back of the camera to see if it's too light, etc and change your setting when necessary. I'd hesitate to use auto focusing by letting the camera choose the focusing point as you'll be getting both near and far in the image in most instances. That's why the center point works for me. Unlike regular 'macro' lenses this lens does not give blurred 'bokeh'. Because of it's wide 4.5mm lens and 180 degree field of view the surrounding far-away areas will still be in substantially in focus and not blurred out. And that's part of the 'fun' of the lens for me. I'm a rather high level amateur photographer, spending a lot of time at the local Zoo taking photos. My go-to lens at the Zoo is a Canon 70-300L IS lens so I can defeat the chain-link and other fencing. The addition of this fisheye lens has allowed me to photograph the Zoo with a new perspective. And while I really like the look of a circular photo, I've also cropped some of the photos taken with this lens in a rectangular or square cropping -- and there has been little or no exaggeration of lines or perspective when I've done that. As to the outside of the photo image, at times, especially when the image is very light around the edge, I can see some of the screw grooves from the lens cap adapter around the image. With Photoshop's 'brush' or 'clone' tools, it has been relatively easy to darken it to black without hurting the image. In short this is a great lens 'investment' when used for special types of photos. I recommend it highly.

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      (1 of 1 customers found this review helpful)

       
      5.0

      A Full Circle and More

      By LunaClick

      from Australia

      Verified Reviewer

      Pros

      • Consistent Output
      • Easily Interchangeable
      • Much Fun
      • Strong Construction

      Cons

        Best Uses

        • Indoors/Low Light
        • Landscape/Scenery
        • Macro Photography
        • Night Photography

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

        This Sigma 4.5mm was bought for night star shots, horizon to horizon, and it does that indeed. In other uses, if one can keep one's feet out of the frame, it is wonderful for cityscapes. A walk in the park can be almost magical with this real fisheye. It is used on a crop sensor 60D, 650D, and the new 70D. Seeing the sun and my shadow both in the same frame is amazing!

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        • No

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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.

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        • No

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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.

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          • 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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          (11 of 12 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.[...]

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          • 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.

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              • 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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