- A compact, lightweight super-zoom designed exclusively for digital SLR cameras with APS-C size sensors
- Includes Sigma’s OS (Optical Stabiliser) technology
- HSM (Hyper Sonic Motor) ensures very fast and quiet auto focusing
- An ideal alternative to a standard zoom
- Four SLD (Special Low Dispersion) glass elements and three aspherical lenses produce superior image quality
- Multi-layer coating optimises quality for digital photography
- Compact and lightweight
- Non rotating front element makes it suitable for use with polarising filters and the included petal type lens hood
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Product Description
Manufacturer's Description
This high zoom ratio lens is designed exclusively for digital SLR cameras and incorporates Sigma’s original OS (Optical Stabiliser) technology. This system offers the use of shutter speeds approximately 4 stops slower. Pentax and Sony mount lenses are also equipped with the OS function as it is possible to use this with camera bodies which already incorporate a built-in anti-shake system. Four SLD (Special Low Dispersion) glass elements and three aspherical lenses provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The HSM (Hyper Sonic Motor) ensures fast and quiet auto-focusing. This lens has a minimum focusing distance of 45cm (17.7in) and a maximum magnification ratio of 1:3.4, making it convenient for close-up photography.
Product Description
Sigma DC 3,5-6,3/18-250 OS SO/AF for Sony HSM
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Most Helpful Customer Reviews on Amazon.com (beta)
Amazon.com:
4.1 out of 5 stars (15 customer reviews)
13 of 13 people found the following review helpful:
5.0 out of 5 stars
My choice for a versatile lens for the Sony a55, 26 July 2011
By Setter Dog "Jack" - Published on Amazon.com
This review is from: Sigma 18-250mm F3.5-6.3 DC HSM Optical Stabilised Lens for Sony Digital SLR Cameras (Electronics)
I had an 18-55mm and a 75-300mm for my Sony a55 and liked both lenses. However, I found that, more often than not, I had the wrong lens mounted for what I wanted to do. The 18-55 has very little reach and the 75-300 is almost worthless indoors. So, I started investigating more versatile lenses and settled on either the Tamron 18-270 or this Sigma 18-250. I was initially put off by the weight of the Sigma. It is considerably heavier than other lenses in this class.The best source of information that I found was the Sony DSLR forum. Several members had tried both lenses I was considering and everyone that owned the Sigma liked it. They acknowledged that it was heavy but felt that was not an issue in actual use.
I bought the Sigma 18-250 about a month ago and it hasn't been off the camera except for about 15 minutes to compare the lens image stabilization to my a55 with the Sony 75-300. (The Sony a55 has built in image stabilization which is very effective, so their lenses do not have IS) My tests convinced me that the way to go was to use the lens stabilization in the Sigma lens and turn off the IS in the camera. The lens IS is really a special feature. I think it's probably a little better than the a55 camera IS, but the main advantage is that it makes the view through the EVF look smoother and steadier when using long zoom. I really like this feature.
The only other test I did was to compare the IQ at 250 mm with that of the Sony 75-300. Both lenses are very good with a slight edge to Sigma, in my opinion.
I have found no problems with this lens at all. I highly recommend it.
Jack
9 of 10 people found the following review helpful:
5.0 out of 5 stars
Excellent all-around lens, 15 July 2010
By Eric - Published on Amazon.com
This review is from: Sigma 18-250mm F3.5-6.3 DC HSM Optical Stabilised Lens for Sony Digital SLR Cameras (Electronics)
I've had this lens for 3 months now and I must say it's a great walkabout lens. It has great features, quick (and silent) autofocus, and an excellent zoom range. I'll break it down into pros and cons.Pros:
Excellent zoom range
fast and silent autofocus
decent image stabilization
extremely low distortion across zoom range
excellent colors (compared to kit lens)
decent bokah (for a non macro) @250mm
Very nice petal hood
no zoom creep even with lock disengaged
Cons:
minor chromatic aberration
soft corners at faster f-stops (<7)
heavy (not as heavy as separate lenses, of course)
autofocus searches in low light, esp at high zoom
can't manually focus when in autofocus mode (like real a HSM motor)
Other Thoughts:
manual focus ring doesn't have a large range of motion (hard to fine tune)
On mine, the zoom ring is very stiff between 80mm and 135mm (still smooth, but a lot of resistance)
lens blocks the flash on my camera in many situations (sony a300)
focus range is closer than stated... about 2-3 inches (~6cm) in front of the lens at 250mm, though you'll have to use manual focus for that.
focal length changes when focusing on close objects @250mm
Overall I would recommend this lens to anyone in the market. It takes great pictures and has been a substantial upgrade over my kit lens. My only real gripe is that its fairly slow and not the best thing for low light... However, that's not what this lens is for. This lens excels when used outdoors for both wildlife and action photography. It takes very decent landscapes and can also take macro shots (if you aren't too picky and have good lighting). I've been using this lens while traveling and it has allowed me to take some very nice pictures without having to swap through lenses.
4 of 4 people found the following review helpful:
5.0 out of 5 stars
Great everyday lens. Great color & detail., 4 Feb 2011
By Francis E. M. - Published on Amazon.com
This review is from: Sigma 18-250mm F3.5-6.3 DC HSM Optical Stabilised Lens for Sony Digital SLR Cameras (Electronics)
This lens is perfect for carrying around with you all day, when you have no idea what you'll be taking pictures of. It's not very heavy, especially for it's range.I've had the lens for a month now. I think it's strong points are in color and detail. It captures colors so amazingly, they're incredibly vivid & vibrant, it's beautiful, it's absolutely spectacular. It really gives appeal to shooting in RAW mode and keeping every little shade of color. I use it, also, to capture textures & I think this lens is fine for it, it can produce razor sharp images...razor friggin sharp.
It's downside? Well, compared to my Sony lenses, it's not quite as good at capturing shadows. So I don't use it for portraiture very often, because I prefer the shadow quality I get from Sony lenses since I take portraits in relatively low light. It's got a really nice, delicate, soft focus in the background when you do take portraits with it, though. It's certainly not a poor choice of lens for portraiture, it just needs more light, a brighter situation to be at it's best.
As far as construction goes, it couldn't get any better. It's got quite a bit of resistance to changing focal length, which I find wonderful...you can spin it to just the right focal length without it sliding past it. It's rubber & plastic - it's got thick, deeply ribbed rubber around the focus ring & the part to change the focal length, and everything else is a nice, solid, rugged plastic.
The optical stabilizer works fantastically from 18-90, from 90-125 is still pretty great but you need some concentration for it to work, and you can still get crystal clear images by leaning on something or using your elbows as a bi-pod all the way up to 250.
The HSM couldn't scare a fly, I have perfect hearing and I can't even hear it when I have my face against the eyecup taking a picture...and it auto focuses in like half a millisecond. No joke, I'm dead serious.
It's never dark around the corners/edges. Ever. At any focal length.
I've never had a problem with the focus hold button.
I think I covered everything. To recap: Buy it, it's a steal for 480 USD.
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