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Sigma 105mm f/2.8 EX DG Medium Telephoto Macro Lens for Canon SLR Cameras | 
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| Brand: Sigma
Category: Photography
List Price: $439.00
Buy New: $395.00
You Save: $44.00 (10%)
New (10) from $389.00
Avg. Customer Rating:  12 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Fragile: No
Batteries Included: No
Maximum Focal Length: 105
Minimum Focal Length: 105
Shipping Weight (lbs): 1
Dimensions (in): 4 x 4 x 3.1
MPN: B0002P19XA
Model: B0002P19XA
UPC: 085126257279
EAN: 0085126257279
Availability: Usually ships in 24 hours
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| Features:
| • | Super Multi Coating reduces flare and ghosting that tends to occur when using digital SLR cameras | | • | High performance medium telephoto macro lens optimized for digital cameras | | • | Lens Construction - 11 Elements in 10 Groups | | • | 12.3 (31.3cm) Minimum Focusing Distance | | • | Dimensions - Diameter 2.9 x Length 3.8 (74x97.5mm) |
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| Accessories:
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| Editorial Reviews:
Amazon.com Product Description
Optimized for Canon digital SLR cameras but also compatible with film SLR cameras, the Sigma 105mm f/2.8 medium telephoto lens allows a greater working distance between the lens and the subject, helping it excel in all shooting ranges. The increased working distance of the lens is ideal when taking the picture of a flower among several branches, or an insect on a leaf. The narrow angle of view helps simplify the background, while the shallow depth of field makes it easier to handle the composition. The lens also offers a super multi coating that reduces the flare and ghosting that tends to occur when using digital SLR cameras, helping create crisper, sharper photos. And thanks to the Dual Focus (DF) system, the lens is easy to hold during autofocusing, but also offers smooth and positive action should you choose to focus manually on images. Other features include a minimum aperture of f/45, a screw-in lens hood that supports the use of circular polarizing filters, and a minimum focusing distance of 12.3 inches. Offering a 35mm equivalent field of view of 178mm on a digital SLR camera, the lens carries a one-year warranty. Specifications
- Focal length: 105mm
- Maximum aperture: f/2.8
- Lens construction: 11 elements in 10 groups
- Angle of view: 23.3 degrees
- Number of diaphragm blades: 8
- Minimum aperture: f/45
- Minimum focusing distance: 12.3 inches
- Maximum magnification: 1:1
- Filter size: 58mm
- Corresponding AF mounts: Canon
- Dimensions: 2.9 inches in diameter and 3.8 inches long
- Weight: 16.1 ounces
- Warranty: 1 year
Product Description
The Sigma 105mm f2.8 EX Macro delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to 1: 1 (life-size) macro, as close as 12.3" without accessories.Its non-rotating front lens group makes it easier to work with polarizing filters and has a focus limiter (eg. Full Range; - 15.8 in.; 14.6 in. - 12.3 in.).A "focus-free" mechanical design allows the lens to auto focus without any interference from the manual focus ring. This makes it easier to hold the lens without affecting the speed or normal operation of the autofocus function. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers.The Sigma 105mm f2.8 EX Macro features the new deluxe external EX finish. These features and other Sigma optical advances, including an uncommonly broad range of focus, make this an ideal lens for a wide variety of applications, from nature photography to portraits.A handy screw-in type metal sunshade makes it easier to rotate a polarizing filter.
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| Customer Reviews: Read 7 more reviews...
 Quirky, but worth it November 7, 2005
59 out of 60 found this review helpful
When I first started looking for a mid-level macro lens, a few weeks ago, I was naturally drawn first to the Canon 60mm, as I have already have 2 Canon bodies.
But then I started looking around, reading reviews (mostly on Fred Miranda's site), and comparing prices. The more research I did, the more appealing this lens became. And finally, I decided to go with it.
Here's why:
- The price is similar to the Canon 60mm.
- I already own a Sigma EX-series lens (17-35mm), and really like it. I like the matte finish, and the glass is excellent.
- For some reason I cannot fathom, Canon doesn't include lens hoods with any of the mid-range lenses I looked at. Sigma does.
- The greater focal length means I can stay farther from the subject - minimum focus distance is about 30cm (12in). This is almost always a benefit.
This lens isn't perfect, however, and here's a few caveats you may want to consider before making a purchase:
- In low light (ie, most macro photography), this lens likes to hunt. Which can be a slow process considering its length when fully extended. Personally, I don't mind manual focus all that much, so this doesn't bother me.
- This is a not an HSM (Sigma's version of USM) lens. It is motor-driven. This might bother you, but I barely even notice it.
- Switching to/from manual/autofocus mode is a 2 step process. Beside the switch on the side of the barrel, the focus ring requires a push-pull motion which is sometimes a bit tricky. With a little practice, this becomes less and less of an issue - and if you leave it on manual most of the time (as I do), you seldom have to worry about it.
- The lens hood is a screw-in, not a twist- or clip-on model. This is, however, offset by the rather deep recession of the glass in the lens tube. (If you want to use the lens hood and leave it on, a 77mm lens cap will fit it.)
Despite these (in my opinion, very minor) problems, I'm very happy with this lens, and would definitely recommend to anyone looking for a mid-level macro lens
 Worth every penny May 15, 2006
27 out of 27 found this review helpful
I've been using this lens for about 3 months now on a Canon EOS-350D and the Canon 5D. It has supurb optics. At f2.8, it is sharp. From f3.0 it takes off and stays sharp up to about f14. The focus mechanism is a little different from most other lenses, but actually I've grown to like it. With a push-pull lock at the end of the lens for manual-auto focus, you can put this thing in manual mode two different ways. If you're focusing in, pull the mechanism and you don't have to worry about the camera trying to change focus and you don't have to take your hand off the lens to find the manual button. Really cool actually, just a little different at first. It is light enough that weight has never been an issue, though it does extend out pretty far when focusing. Focus speed is not as fast and there is a little more motor noise, but this too is never an issue as all my close work is manual focus. As a telephoto, it works very well, but the autofocus speed comes into play here. It will hunt in some conditions as a telephoto, but it is pretty accurate.
Save some money and take great SHARP shots with this lens. Highly recommended!
Wonderful addition to SLR photography! January 3, 2007
12 out of 17 found this review helpful
The sigma 105 macro lens is a great way to explore new worlds with macro photography. I am using this lens with my 300D Digital Rebel and the results are fantastic. Now, small areas in my backyard and local parks offer unlimited photo opportunities. I would, however, offer several tips for beginners with macro photography. First, and foremost buy and use a tripod. With many subjects, depth of field is critical and any movement whatsoever will be evident in your images. Second, if your camera can allow it, use mirror lock-up and a remote release to prevent movement. Third, have plenty of patience! Expect to take a lot of images to come up with keepers. No big deal for digital cameras, and don't be afraid to experiment.
Here is a fun project that I have been using with this lens courtesy of my high school photography teacher:
Take a nail and tie a 10 ft. piece of string to it. Then, as you are walking along a trail or path, randomly stick the nail in the ground. You now have a circle with a 10 ft. radius. Challenge yourself to shoot 10, 20, 50 or even 100 images within that radius. It will certainly cause you to look, and more importantly see differently.
This purchase is perhaps the best piece of equipment that has helped my photography.
Excellent macro lens for dentistry November 25, 2007
6 out of 6 found this review helpful
I have employed my Rebel XT digital SLR into my dental office. I upgraded to the Rebel XTi (10 mpixels) for home. I purchased the Sigma ring flash with a Sigma macro lens for the Canon SLR family. If you look at the Lester Dine website this is basically what they sell for a few hundreds dollars more.
I compared the ring flash and lens with the ones offered by Canon and felt that it was worth saving $300 by purchasing the Sigma combo.
The macro lens/ring flash work well for dental purposes. After a little experimentation I discovered that I get the best images by using the aperature priority setting. All settings are used with ISO 400 speed. I set the aperature at 14-16 for intraoral shots. This gives the best depth of field. I also use the operatory light for intraoral shots. I set the aperature to 6 for full face shots.
I use autofocus but set the ratio to 1:2 to 1:3 for intraoral shots. This keeps the autofocus from "hunting". I frame the shot by moving towards the subject. Once I get close to the image that I like I use the autofocus to get the final focus for the picture.
Great lens May 12, 2007
3 out of 5 found this review helpful
I was looking for a macro lens to shoot detail shots of my knitting for my blog and a friend recommended this lens to me. I'm not a great photographer, but I've been able to get some really spectacular shots with this lens on my Canon Rebel.
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