Good pergformance Great prise for that performance

Little noise Not HSM

Great product from the great brand. I like Sigma for there prices and what can you get for money you paied

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Canon 28-70 2.8

F2.8 constant throughout the zoom range, and depth of field available on F32. Build quality is high, the lens is very sharp between F4 and F8.

The Auto and Manual Focus is a push pull affair dont like. Filter size is a whopper.

I really liked the look and feel of this lens on my Canon 30. My first set of slides I was not dissapointed, the lens is sharp and constant throughout its range. The lens is good value for the money, it would not suprise me if this because a very popular lens.

Price, general performance.

Flare susceptibility.

When i first got the lens it looked and felt so untypical of a Sigma. This lens is BIG and hefty. I am using the lens only on a Nikon D1X. The lens is one of Sigma's new range of 'digital' lenses (hence the "DG" moniker) Performance wise, the lens is plenty sharp at all apertures except the smallest. Distortion wise, the design philosophy is interesting - very low distortion at the wide end (24mm) and very significant distortion at the longest end (70mm). This is both good and bad I suppose depending on how critical straight lines look straight at which end for you. Contrast wise the lens is good, not great. However, it's in flare susceptibility where the lens is a bit of a let down. Any specular light even out of frame but in line of the front element will create very obvious flare problems. I get around this by shading the stray light with my hand. Overall, the lens still a very good purchase if you can't afford the manufacturer's original stuff. C'mon, it's a constant f2.8 lens.

Solid without being overly heavy, Fast 2.8 aperture, Good AF speed - mixes well with its more expensive peers. Excellent image quality and colour rendition. Excellent value! Superb lens case.

Not indestructable - especially lens hood. Counter intuitive zoom direction (get longer at wide angle too - bizarre!) 82mm lets in the light but costs you for filters.

Plastic but rugged.A lot of glass for the money and thats really noticeable at F2.8 where vignetting is very well controlled although for reasons of sharpness it performs better at F4 + On my eos3 the AF is fast and accurate, although not the quietest. Infinity to 1ft takes a fraction of a second to AF with no hunting - even in low light. The zoom collar rotates in what feels like the wrong direction and was a little stiff to start with but is now comfortable yet still with no signs of slackness. For £325 this is about 1/4 of the price of a similar own brand lens and whilst it''s not as rugged (should still last for years) the optical difference is fractions that you wouldn''t even notice below 16"x20". Could you ever justify the extra expense when any 35mm photo library would accept pictures of the quality this lens can produce? I couldn''t anyway.

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Similar Products Used:

Takumar 28-85mm F2.8-4 Sigma 28-70 F2.8 EX Canon 28-135mm IS

1)Price 2)those extra 4mm (see above) 3)feel

1)82mm filter (hard to find in those bargin boxs) 2)the zoom ring is a little stiffer that I like

I recently upgraded my entire set up from an minolta 5xi and decided to go with the eos 3. I picked up this lens with the body due to its range and price for a 2.8 lens. The focus on this lens is great as it works well for high speed/low light sports (hockey, indoor tennis). In addition to fast paced action, I have found that this lens has been very versitile and has produced great shots whatever the situation my daily student paper requires me to snap. For photojournalism on a budget I think this lens is a must, the 24mm dramaticaly presents more options and I find that there are many situations were a standard 28 would not have cut it

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Nada- this is purely objective

Price- can you imagine how much Nikon or Canon would charge for a pro 24-70 mm? Imaging- really good everything!!!! Build- big and solid, but still comfortable.

I wouldn''t ever drop one, and I wouldn''t twist the manual focusing ring around too much. The Autofocus is not in the big league. Similar Products Used: Sigma EX 28-70 f2.8- been there, done that- again get the 24, not the 28!!!

I found the Sigma 24-70 2.8 to be a very acceptable alternative to the extremely expensive Nikon professional lenses available for my Nikon F100. The lens is very sharp, with little noticable distortion at the 24 mm end. The color and contrast are really very good- the lens gives great snap to images. The build quality is great for a plastic lens. It feels big and solid. But also, I find that attached to my F100 with an MB-15, I can sling it on my shoulder all day without any problems because of the weight saving plastic body. I''ve used the Sigma EX 28-70mm, which was also a very good lens, and I''m finding that this one is easily on par in imaging terms, except it''s got those very handy extra 4 mms. So, get the 24-70, not the 28!!! The autofocus is very good, withotu being anything like excellent, I find. All in all, I definately recommend this lens to anyone looking for a quality general lens with a constant 2.8. I think you''d be very hard pressed to find a better lens for the same money.

Customer Service

used.

Price- can you imagine how much Nikon or Canon would charge for a pro 24-70 mm? Imaging- really good everything!!!! Build- big and solid, but still comfortable.

I wouldn''t ever drop one, and I wouldn''t twist the manual focusing ring around too much. The Autofocus is not in the big league.

I found the Sigma 24-70 2.8 to be a very acceptable alternative to the extremely expensive Nikon professional lenses available for my Nikon F100. The lens is very sharp, with little noticable distortion at the 24 mm end. The color and contrast are really very good- the lens gives great snap to images. The build quality is great for a plastic lens. It feels big and solid. But also, I find that attached to my F100 with an MB-15, I can sling it on my shoulder all day without any problems because of the weight saving plastic body. I''ve used the Sigma EX 28-70mm, which was also a very good lens, and I''m finding that this one is easily on par in imaging terms, except it''s got those very handy extra 4 mms. So, get the 24-70, not the 28!!! The autofocus is very good, withotu being anything like excellent, I find. All in all, I definately recommend this lens to anyone looking for a quality general lens with a constant 2.8. I think you''d be very hard pressed to find a better lens for the same money.

Customer Service

Not used.

Similar Products Used:

Sigma EX 28-70 f2.8- been there, done that- again get the 24, not the 28!!!

resolution and contrast are top notch for a lens of this specifications.

Pincussion distortion at the tele end. mechnics could have been better and why not HSM?

I was buying this lens after along contempaltion. I wasn''t sure if I''m not suppose to go for the Nikon 28-70 2.8AF-S. The low price influenced my decition. I''m a semi pro, I''m not fully occupied with photography and this is the place to save. I got to shoot with this lens a whole film and when I saw the results I was impressed. The only problem I can think of is the typical Sigma distortion, however I believe is not that bad as in the 28-70 2.8EX. The films I took so far show excellent results in every term. I agree with reviewer Kroist from Australia that complained about the mechanical quality but I photographed already in one gig under very poor lighting conditions and AF that seemd to function very slow didn''t miss any shot! I might adjust the exposure to about 0.7 ev less than what it is now in the future, but otherwise great lens!

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not needed so far.

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Tokina AT-X 35-70 2.8 Nikon 28-70 3.5-4.5 Sigma 28-702.8 Sigma 28-70 2.8EX

Fast autofocus, constant 2.8, low distortion and good image quality. I don''t think you can beat this for the money.

None so far.

I really like this lens so far. Images have been sharp. The colors and contrast have both been pleasing. The best suprise for me so far is how great this lens focuses on my D1. Fast and no hunting. I often shoot out over water and the horizons have been straight at 24 with no curves. This is something that neither my Nikon 24-120 or Tokina 24-200 can do. Build quality seems decent enough.

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Not used.

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Nikon 24-120, Tokina 24-200.

One lens for 24mm-70mm captures all I need for travel without 2: 20-35mm and 28-70mm. Sturdy with my EOS50 and will made with an undeatable price. Very bright lens with good lens hood. The lens focus and zoom rings are very firm and feel very professional. The color is good and with negative scanns into PC. The image is far better shown in PC than in prints.

82mm filter and camera flash blockage be a problem to my EOS 50.

A good lens for my wedding and Honeymoon hooting in New Zealand. The colour is nice and the details on natural life is well very good.

Customer Service

Not needed.

Similar Products Used:

Canon 28-70mm F3.5-4.5 and Canon 20-35mm F3.5-4.5, Canon 75-300mm IS F4-5.6, Canon 50mm F1.8, EOS 10 and EOS 50