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Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Canon EF
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Canon EF
B&H # SI4528EXDCC MFR # 486-101
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Product Highlights
- Canon EF Mount/APS-C Format
- 7.2mm (35mm Equivalent)
- Aperture Range: f/2.8 to f/22
- One SLD Glass Element
- Super Multi-Layer Coating
- 180° Angle of View
- Circular, Distorted Image
- Hyper Sonic Motor AF System
- Six-Blade Diaphragm
Sigma 4.5mm f/2.8 overview
- 1Description
Offering creative distortion and exaggerated perspectives, the Canon EF-mount 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens from Sigma produces a circular image with an expansive 180° angle of view. Benefitting the unique look of the lens is an advanced optical design that utilizes one SLD glass element to reduce color fringing and chromatic aberrations for improved clarity, as well as a Super Multi Coating to suppress lens flare and ghosting. Additionally, the lens also features a Hyper Sonic Motor for quick and accurate autofocus performance for working with subjects as close as 5.3" away.
- Unique 4.5mm f/2.8 circular fisheye lens is designed for APS-C-format Canon EF-mount DSLRs where it provides a 7.2mm equivalent focal length.
- Expansive 180° angle of view pairs with the fisheye design to render circular imagery within a black frame. This design also renders scenes with exaggerated distortion and curved lines for a creative, true "fisheye" aesthetic.
- One SLD glass element is featured in the optical design to reduce chromatic aberrations and color fringing for improved clarity and color accuracy.
- Super Multi Coating has been applied to individual elements to suppress flare and ghosting for improved contrast and color when working in strong lighting conditions.
- Hyper Sonic Motor autofocus system, and an internal focus design, offer fast, precise focusing performance for working with subjects as close as 5.3" away.
- Rear slot accepts cut, insertion-type gelatin filters.
UPC: 085126486549
In the Box
Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Canon EF
Table of Contents
- 1Description
Sigma 4.5mm f/2.8 specs
| Performance | |
|---|---|
| Focal Length | 4.5mm |
| Aperture |
Maximum: f/2.8 Minimum: f/22 |
| Camera Mount Type | Canon EF |
| Format Compatibility | APS-C |
| Angle of View | 180° |
| Minimum Focus Distance | 5.31" / 13.5 cm |
| Maximum Reproduction Ratio | 1:6 |
| Optical Design | 13 Elements in 9 Groups |
| Diaphragm Blades | 6 |
| Features | |
|---|---|
| Autofocus | Yes |
| Physical | |
|---|---|
| Filter Thread | Rear: |
| Dimensions (DxL) | Approx. 3.00 x 3.06" / 76.2 x 77.8 mm |
| Weight | 1.03 lb / 470 g |
| Packaging Info | |
|---|---|
| Package Weight | 1.55 lb |
| Box Dimensions (LxWxH) | 5.4 x 4.2 x 4.0" |
Sigma 4.5mm f/2.8 reviews
4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Canon EF is rated
out of
5 by
11.
Rated 5 out of
5
by
Anonymous from
Amazing Lens
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.
Date published: 2015-02-09
Rated 5 out of
5
by
LunaClick from
A Full Circle and More
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!
Date published: 2014-12-28
Rated 4 out of
5
by
bdmsb from
A fun lens for special effects
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....
Date published: 2011-01-29
Rated 4 out of
5
by
Anonymous from
it catches all the details
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.
Date published: 2014-11-09
Rated 5 out of
5
by
Anonymous from
Great for Micro 4/3 circular photos (separate adapter ring)
I work in archaeoastronomy and was looking EVERYWHERE for a perfectly circular lens for my Micro 4/3 camera. I looked for 4 days and all I found were lenses that cropped the images (so, a no go for me) and one lens that was over $3,500... It seemed like a lost cause until I found a guy that bought this lens and an adapter to get a perfectly circular image in his MFT camera. I bought a Metabones T Smart Adapter (Canon to MFT) that keeps all automated functions, but you can get a more basic and affordable adapter as well, depending on what you want. This lens works on a MFT camera because the circular image is small enough that it does not get cropped. If you buy it for a regular-sized camera, perhaps the image is too small (?), but it worked great for me. The ONLY semi-affordable option for what I needed/wanted.
Date published: 2017-05-14
Rated 5 out of
5
by
Nas335 from
I would buy this product again and again
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.
Date published: 2010-04-11
Rated 5 out of
5
by
Washboy from
What a blast
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.
Date published: 2010-08-31
Rated 4 out of
5
by
Antu from
Fun lens
Great lens for outdoor and even interior/architecture. This is a really fun lens especially on portrait.
Date published: 2010-08-03
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Sigma 4.5mm f/2.8 Q&A
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