The Sigma 18-125mm F3.8-5.6 DC OS HSM is a high ratio zoom lens which is designed exclusively for digital SLR cameras
DC lenses special lenses designed so that the image circle matches the
smaller size of the image sensor of most digital SLR cameras. Their
specialized design gives these lenses the ideal properties for digital
cameras, the compact and lightweight construction is an added bonus!
including compact and lightweight construction. These lenses will not give a full image on
'full frame' cameras.
This compact high zoom ratio lens incorporates Sigma's original OS (Optical Stabilizer) function. This system uses two sensors inside the lens to detect vertical and horizontal movement of the camera and works by moving an optical image stabilizing lens group to effectively compensate for camera shake. It offers the use of shutter speeds approximately 4 stops slower.
It is the ideal lens for several types of photography such as
telephoto and close-up. SLD (Special Low Dispersion) glass, a molded glass aspherical lens and two hybrid
aspherical lenses provide excellent correction for all types of
aberrations. The super multi-layer coating reduces flare and ghosting. High image quality is assured throughout the entire zoom range.
This lens has a minimum focusing distance of 35cm (13.8") at all focal lengths, and has maximum magnification of 1:3.8, making it ideal for close-up photography. This lens incorporates HSM (Hyper Sonic Motor), which ensures a quiet and high-speed autofocus.
• High zoom ratio lens designed exclusively for digital SLR cameras and incorporating Sigma's original OS (Optical Stabilizer) function.
• SLD glass and Aspherical lenses provide high image quality throughout the entirezoom range.
• Super multi-layer coating reduces flare and ghosting.
• Compact construction of 88.5mm (3.5") in length and 74mm (2.9") in diameter.
• Minimum focusing distance of 35cm/13.8 inches and maximum magnification of 1:3.8, making it ideal for close-up photography.
• HSM ensures quiet and high-speed autofocus.
Shop for the Sigma 18-125mm f3.8-5.6 DC OS HSM Lens here from these stores
Max Format Size
APS-C / DX
Lens focal length
18 – 125 mm
Yes (4 stops claimed)
Canon EF, Sigma SA, Nikon F (DX)
Angle of view
69.3 - 11.4 degrees
Aperture (lens diaphragm)
Largest aperture opening
F3.8 - F5.6
Smallest aperture opening
F22.0 - F36.0
Includes aperture ring
Total diaphragm blades
Number of Groups
Coatings / special elements
2 SLD (Special Low Dispersion) glass elements 1 molded
glass aspherical element 2 hybrid aspherical elements
Minimum focus distance
0.35 m (13.78")
Maximum magnification ratio
Full time manual focus
Lens distance scale
Depth of field scale
Focus distance limiter
490 g (1.08
74 mm (2.91")
89 mm (3.48")
Zoom lock switch
Filter thread size
Does not rotate on focusing
Lens hood included
Tripod collar included
• Lens Hood
• Front & Rear Lens Caps
• 1 Year International Warranty plus 2 Year Sigma U.S.A. Extended Warranty (Total Warranty is 3 Years from Date of Purchase)
I guess I got a good one.., June 4, 2009
By J. Carr "KC guy" (Kansas City)
There were several mixed reviews on this product but I went ahead and purchased it anyway. I was replasing a Canon 18-55 IS "kit" lense that I dropped. (which is a great lense. Don't be confused by the reviews of the older model 18-55 that's not an IS. The IS version is a fantastic starter lens.)
I got my lens from 47th St. and received it today. I've taken 74 pictures so far and just now viewed them on my computer. Awesome! I love the color and crispness of them. I'm not even close to a professional photographer. I use my XSI to take pictures of my 16 month old son and that's it so take my recommendation for what it's worth. It seems to me though that if you get a good "copy" you will be extremely pleased. My thought was if I wasn't happy with the quality I would just keep returning them until I got a good one. Maybe I'm just lucky but I got a great copy the first time around.
A Good Walk-around Lens, August 8, 2008
By G. Huang "Panabiker" (NJ, United States)
This is a new lens from Sigma. I could not find any detailed reviews on the net before I bought it. It's a well built amateur lens with a nice focal length coverage that's not available from Canon. It's significantly heavier than Canon's 18-55mm plastic kit lens, likely due to more metal and glass used in construction. The focus is reasonably fast compared to Canon's kit lens and slightly quieter. For those who are familiar with Canon's ring type USM lenses, however, the this HSM lens is not a ring type HSM. This means it's not as quiet or as fast as the true ring-USM. And it does not allow "full-time manual focus". You have to turn AF switch off to manually focus the lens. This was a little disappointment for me for a lens at its price range. Sigma could have used a ring type HSM. Another thing I noticed is that while the OS (optical stabilizer) can be switched on or off, the OS gyroscope seems to be powered on even when the OS is off. You can hear the little noise from the piezoelectric gyro. My concern is that it can still drain battery power when OS is off. Optically, I am not in a position to say much because I have a 8MP camera. It's certainly adequate for me. Overall, I am happy with it and sold the kit lens that came with my camera.
Friday, 21 May 2004
Sigma Corporation is pleased to announce the launch of the new 18-125mm F3.5-5.6 DC.
This zoom lens was exclusively designed for use with digital SLRs with the popular APS-C sensor. This latest lens from Sigma`s DC range has a 6.9 times magnification zoom ratio. The image circle is designed to match the size of the image sensor of digital SLR cameras resulting in a surprisingly compact and lightweight superzoom lens.
A Special Low Dispersion (SLD) lens and two aspherical glass elements produce a high level of optical performance through the entire zoom range.
This lens has a minimum focusing distance of 50cm (19.6") at all focal lengths and is equipped with an inner focusing system. The non - rotating front element makes the lens particularly suitable for using the petal-shaped lens hood (supplied) and circular polarizing filters. The lens is equipped with a zoom lock which eliminates "Zoom Creep".
* Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
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