Product Description
Large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras.
To achieve an F2.8 aperture at all focal lengths, it employs three aspherical Lens to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality.
Optimized for digital SLR cameras
It incorporates "Super Multi Layer Coating" to reduce the influence of harmful light caused by reflections from the digital image sensor.
Excellent correction of aberrations
Two SLD elements, one Glass Mold Aspherical plus two Hybrid Aspherical lenses provide excellent correction of various aberrations and a high level of optical performance.
Minimum focusing distance of 40cm (15.7 inches)
The lens has a minimum focusing distance of 40cm (15.7 inches) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.8.
DF (Dual Focus) System
This lens incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during autofocusing, and yet provides a large focus ring for easy manual focusing.
Petal Type Hood
Since the front of the lens does not rotate, a Petal-type hood and circular polarizing filters can be easily used.
Customer Reviews:
Huge in size and in quality.......2007-11-21
That's a very sharp lens that allows you to take great pictures indoors without a flash and not pushing the camera to 1600 ASA. I found it "flare sensitive" which means that backlight can damage a little the image quality. But I put a UV filter and haven't test it without it.
Be aware that it is a very good lens but it is also prominent. When you put it in front of a Canon Rebel... It looks like that it's not at the right place and the balance it quite different. Nevertheless, it worth it and you can get used to that very quickly.
Soucharenko
Sigma 24-70mm f/2.8.......2007-10-13
I found this lens at a pawn shop nearly new. Paid half of what is listed for on Amazon so I can't complaint much. you can get very creative with this lens. The AF is a little slow specially in low lighting conditions. It is loud but that has never bothered me other than the few times I have tried to capture a shot of someone not knowing I was doing it but got spooked away by the AF and I missed the shot I wanted.
It is very solid and heavy, pictures at times will come out blurry (as another reviewer stated) always take 3 shots to ensure you get a good one. I love this lens and I have used it professionally for weddings and portraiture without problems. Images should be a little sharper at F2.8 but again, play around with it allot and you will find that it will do allot. For the money is great! I will recommend this lens for both semi professionals, amateurs, and beginners. You may see 10 images I've posted on this site at the top.
Great f2.8 for the price!.......2007-02-09
Disclaimer: used it for 4 months+, on Canon Rebel XT 350D and Canon 430 film camera, I am an ameteur shooter.
Pro:
Full time MF.
constant 2.8.
Great contrast and color, consistent with my other Sigmas,
nice weight, fit and finish.
Neutral:
OK AF speed indoor and outdoor
f2.8 isn't fast enough in many indoor situations with moving subjects. I have to use flash with it.
Con:
Arrived with severe front-focus problem. Fixed under warranty.
Zoom could be smoother.
AF whines a bit, but tolerable;
Border not as sharp as center.
Sharp only after stop down. But usable wide open for me
Conclusion:
Probably not pro grade, but for the build quality at this price, it's a winner! (I deducted 1 star because of the less than perfect IQ.)
Good sometimes, down right horrible others.......2006-12-08
I bought this lens through Amazon to do some indoor shooting. Team and individual sports pictures, nothing involving action, I use another lens for that. I thought it would be nice as a walk around lens as well. Well, I was wrong, I shot about 150 indivdual and group basketball pictures with a 580ex flash in a well lit gym, as well as any gym can be lit. Some of the pictures came out extremely crisp, sharp, etc. then right out of nowhere the next picture completely out of focus. With the first few I thought maybe it was me, so I continued with it, with the same mediocre results. I use a 20D, so I am used to some soft pictures every now and then, but these were beyond soft.
This happened through out all the pictures I took of these groups. A few pictures good, some horribbly out of focus. (Horribly out of focus means it is unfixable in photoshop)I have other sigma lenses that work great. My 70-100 f/2.8 is exceptional. Maybe it was just a bad one out of a batch. I returned it to Amazon directly and am still waiting for a refund.
For the kicker, I did use a good professional tripod. Not to bash Sigma because my other two Sigmas work very good.
Good for the money, pros back away........2006-05-08
I've used this lens a couple of years now. It's a good value but not up to professional standards.
Pros:
Very good in low light/no flash situations.
Focuses well in low light, better if you catch and edge in the focus box.
The 24-70 range is good for general indoor photography.
Cons:
The image is not crisp at f2.8 but is ok at 3.5 getting better with higher f-stops.
The lens is heavy, almost to the point it should have it's own tripod mount.
Two stage manual focus, difficult to switch between manual and auto.
The lens is solid, but mine is cracked at the base from a minor 25" to 30" fall (from a pew) onto carpet with camera attached. I didn't flinch when it fell, I didn't think it hit hard enough to do too much. I've dropped cameras from a ladder before with no damaged. The plastic around the base is now cracked. I had to loosen the base ring and pop the plastic back into place. The lens still works and I'll keep using it for candid shots.
The image quality is "good" but does not compare to other 2.8 lenses I've used. For the price, however, it's a great deal.
Product Description
To achieve an F2.8 aperture at all focal lengths, it employs three aspherical Lenses to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality.It incorporates "Super Multi Layer Coating" to reduce the influence of harmful light caused by reflections from the digital image sensor.Two SLD elements, one Glass Mold Aspherical plus two Hybrid Aspherical lenses provide excellent correction of various aberrations and a high level of optical performance.The lens has a minimum focusing distance of 40cm (15.7 inches) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.8.This lens incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during autofocusing, and yet provides a large focus ring for easy manual focusing.
Customer Reviews:
Outstanding Lens.......2007-09-16
I use this lens on my Pentax K10D and it performs great. I took it with my on a trip to Antelope Canyon, AZ and it was fast enough that I didn't need a tripod to get beautiful photographs. As mention in a earlier review, if you use the built in flash on your camera and forget to remove the lens hood you will get a shadow at the top of your picture. The macro function produces equally amazing results as well. I would highly recommend this lens to anyone who wants a truly fast and versatile high quality lens. For the price and quality you cant beat it.
Very good lens.......2007-09-05
I have been using this lens with my Nikon D50 for over 8 months and I have taken very nice pictures with it. It's solid, reliable, good resolution, constant 2.8 minimum aperture, comes with its own bag. However there are a few things I don't like: it's quite heavy, 24mm with DSLR is not wide enough for many landscape situations, there is a shadow when using the D50 built in flash, noisy with autofocus (but very smooth with manual focus), D50 AF light is partially hidden by the lens hood. Anyway a very good lens for this price.
Excellent Indoor Lens.......2007-06-13
I shoot Nikon digital cameras (D70 and D80) and I shoot a lot of photos indoors. In many situations flash photography is not allowed or preferred by me, e.g. theater productions, museums, etc. This lens has become my primary lens for shooting indoors. It is fast, clear and it seems to work perfectly with my Nikon digital cameras. Of the four Nikon mount lenses that I use, this has become my favorite working lens and I would recommend it to any serious photographer who shoots Nikon digital cameras. It is a bit heavy but I think the advantages outweigh the extra weight.
Product Description
Large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras. To achieve an F2.8 aperture at all focal lengths, it employs three aspherical lenses to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality.
Customer Reviews:
The best general portrait zoom lens!.......2006-07-07
I've used a number of lenses in the 28-70mm f2.8 class from Tokina, Tamron, Sigma, Pentax and Nikon. I can honestly say this is my favorite lens in that class.
I shoot with Pentax, Nikon, and Fuji cameras and the Sigma 24-70mm 2.8 DG lens is the only lens that I bought two of (one for my Nikon /Fuji cameras and one for my Pentax cameras).
I wouldn't call it the best lens in the world, but if I had to choose only one zoom lens to cover the 24-70mm focal lengths then this lens would be the one I choose.
Product Description
This large aperture standard zoom lens provides superior performance both for Digital SLR cameras and 35mm Film SLR cameras. To achieve an F2.8 aperture at all focal lengths, it employs three aspherical lenses to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality. It incorporates "Super Multi Layer Coating" to reduce the influence of harmful light caused by reflections from the digital image sensor.
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