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- Large aperture standard zoom lens designed Specially For Digital SLR Cameras. Macro lens level close up ability
- Minimum focusing distance of 7.9.., maximum magnification of 1:2.3.
- The new multi layer lens coating and lens design reduce flare and ghosting l
- Aspherical and SLD lenses, offer excellent correction for various aberrations.
- The lens offers a large aperture of F2.8 at wide angle.
Product Description
Sigma Corporation is pleased to announce the launch of the new 17-70mm F2.8-4.5 DC MACRO lens. It can be used with wide variety of subjects and it is an ideal large aperture standard zoom lens for digital SLR cameras featuring APS-C size image sensor. This lens has a minimum focusing distance of 7.9.. (20cm) throughout the entire zoom range. Maximum magnification of 1:2.3 enables close-up photography like a macro lens. The new lens design and multi layer lens coating reduce flare and ghosting, which is a common problem with digital cameras. A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations and produce a high level of optical performance throughout the entire zoom range. This lens offers a large aperture of F2.8 at 17mm wide angle and yet it is compact, with an overall length of 82.5mm (3.2..) and diameter 79mm (3.1..). It performs superbly even in relatively low light conditions indoors or at dusk. The lens design incorporates an inner focusing system, which ensures fast AF speed as well as prevents the front of the lens rotating, making it particularly suitable for use with circular polarizing filters and petal shaped lens hoods. This lens is also equipped with Zoom Lock Switch that eliminates ..Zoom Creep.. during transportation.
Sigma 17-70mm f/2.8-4.5 DC IF Macro Lens for Sigma Digital SLR Cameras
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I just wanted to point out that the f2.8 is not constant on this lens. You can only shoot at f2.8 at 70mm, as soon as you pull back , that aperature will change. If you want a constant f2.8 over the full range this is not the lens for you.
Rating: 3 / 5
I have now owned this lens for a while and have come back to upgrade my review but leave some drawbacks so other shoppers will be aware.
The good points of this lens, that made me keep it instead of return it, are the unusual qualities it has to go macro on the one end of the range, and zoom to a virtual wide angle at the other extreme. These two views broaden my ability as photographer in ways that none of my other lenses do. I hardly ever use the middle of this lens. I grab it for the big wide picture, or the super close up shot. Anything in the middle, I’d rather use my 50mm prime lens.
I really wanted a macro for close up flower photography, I maybe should have looked at a few other options. This does do macro but I could have gotten even more zoom with another lens choice. At least it lets me get close. I can put the lens as close as I want to the flower or object. It is great in autofocus or manual. It produces nice pictures as long as, and only if, there is a lot of light. Otherwise you’ll get a big shadow from where the flash on your camera couldn’t reach over the lens in it’s way. I read about this but didn’t think it would happen to me. Think again. You’ll need to use your extra attaching flash or get more light. So basically I end up only doing macro photos outside or in bright light.
Reading the reviews got me excited for this lens. I started thinking I didn’t really need a prime, or a dedicated macro lens, because here was this great lens that could offer other shots too. Everyone seemed to say it was so sharp and so great. Don’t be too gullible. It’s very slow. That means blurry pictures or no action shots or no twilight shots. If you already have a prime lens, fine. But don’t cheat yourself thinking this thing can do it all.
Probably the reason I kept it, aside from the fun of the macro being alright, is the wide angle side. I use it more than I expected. Especially if I tilt the camera down, it creates almost an arc view that a true wide angle lens can produce. I like it so much that I plan to buy a dedicated wide angle prime lens next time I buy a lens.
If you are not looking to replace your kit lens with a better “everything” lens, this might be great for you. But if you really wish you had a macro and you feel you might get something extra here, it might be better to focus on your main priority.
Get a filter. I figured I’d order one later or pick it up at the shop. Local shop was a lot more. Now I have to order one. Should have just done it at the same time.
I do like the lens and I never use my kit lens anymore. But I would never in a million years trade my 50mm prime lens for this. I only like it since I have both (not to mention others).
Rating: 2 / 5
Item arrived as described in 2 days using the normal delivery option! And so far, my Sigma lens is working fine.
Rating: 5 / 5
Pictures were sharp and bokeh was decent but my shots lacked contrast and saturation. They just looked a little washed out. At first, I thought I just had exposure setting issues or that my D90 photos simply had a different look to it. I changed my D40 to a D90 about the same time so this wasn’t a controlled experiment at the beginning. Later I got some Sigma EX lenses as well as the new 18-250 OS lens that isn’t EX and my pics suddenly jumped to life. Richer color saturation and less washed out. I could only conclude that this lens wasn’t as good as my new Sigmas. However, I note that the 18-250 lens also has a washed out look when shooting at the very long end.
Rating: 3 / 5
It is hard to purchase lens online without “test driving” them. When I received it and took it with me on a trip, it was incredible. It has a nice wide angle, and takes very clean pictures. You have to work out the out-of-focused pictures that one occasionally gets when shots are taken from a distance, but I think mostly that is due to the fact this lens is meant for up-close shots.
Over all … awesome LENS!!!
Rating: 4 / 5