|Sigma 17-70mm f/2,8-4,5 DC Macro|
This is a zoom lens manufactured by Sigma and the model was launched 2006.
The lens belongs to the category
normal zoom lenses, a normal lens where you have the possibility to zoom in and out.
The lens has macro-properties but is unable to reproduce things in their real size (otherwise called '1:1'). You should therefor consider taking the term 'macro' with a pinch of salt and if the macro-possibilities you are looking for you should perhaps look at other options.
|See all lenses released by Sigma|
|See all lenses that was released 2006|
|Read more about normal lenses|
|Read more about macro lenses|
|Compability, auto focus and focal length|
|The lens is available for both Canon and Nikon cameras, but there are two different versions of this lens (one for each brand and mount) so it is important that you ask for and choose the right version when bying the lens.|
|This lens is designed and meant for Canon and Nikon cameras with a smaller sensor (often referred to as 'APS-C') which means that the lens does not fit all camera models. By clicking on the link below you can make sure that the lens works with your camera model and you should do an additional check with your local dealer as well, before you buy the lens just to be sure.
Here it is the only Canon version of the lens that has a built-in auto focus (AF) motor. The possibility to use auto focus (AF) is available for Nikon cameras but only if the camera itself has a built-in auto focus (AF) motor. Some cheaper and budget camera models from Nikon lacks a built-in auto focus motor, and we at Lensora appreciate auto focus, so in the list of compatible cameras we have chosen to display only the cameras that you can get autofocus with.
|The lens has a focal length of 17-70 mm.
Since the lens is designed to be used on a camera with smaller sensor ('APS-C') the focal length will be equivalent to 27-112 mm if you have a Canon camera or 26-105 mm if you have a Niko camera.
|See compatible cameras and perceived/equivalent focal length|
|Read more about focal length and your field of view|
|Read more on the cameras impact on the perceived focal length|
|Read more about the auto focus motor and the importance of this part|
|Lens brightness and image stabilizer|
The lens brightness and aperture value is f/2,8-4,5.
This lens is not considered to have a good aperture value and brightness. It is something to consider before you purchase the lens. To compensate for this you might, while photographing in less favorable light conditions, be forced to either use higher ISO settings (which generates more noise in the image), slower shutter speeds (which may give some motion blur) or flash lightning. Read more at the link below what lens brightness means to you as a photographer.
|One thing to consider is that the lens has a variable brightness, which means that depending on how much you are zooming the lens will have a different maximum aperture value. At 17 mm the lens brightness is f/2,8 and at 70 mm the brightness is f/4,5. Through the link below you can read more about what this could mean for you as a photographer.
|The lens lacks image stabilization, which otherwise os good for avoiding the blur that can occur when using slow shutter speeds.
|Read more about the aperture and lens brightness|
|Read more about changing brightness at different focal lengths|
|Read more about how an image stabilizer works|
|Filter and Lens Hood|
|The lens has a traditional filter thread on the front and its measuring 72 mm which also the filter you will use must have. If you use for example an UV filter can be a cheap insurance against scratches and dust.
If you buy this lens it will come with a lens hood, whose model name is "LH780-04 581".
|Read more about filters|
|Read more about lens hoods|
|Different versions of the lens|
|This lens has been replaced by several newer versions. Prior to purchasing the lens, please compare the various editions.|
|Sigma 17-70mm f/2,8-4,5 DC Macro (2006) << The lens you are currently viewing|
|Sigma 17-70mm f/2,8-4,5 DC HSM Macro (2008)|
|Sigma 17-70mm f/2,8-4 DC HSM OS Macro (2009)|
|Things to consider before buying|
|Below you will find some summarized points and facts that can be considered as the 'pros and cons' of this lens. These are based entirely on the facts and values that are accessible through the lens specification, so we highly recommend that you also read the reported reviews available (see tab 'Reviews'); this in order to get a more complete view of the lens and its capabilites. Reviewer opinions reflect the lens, its use and its optical performance in a more accurate way, but any way - here a few different points to consider before buying this lens.|
|A lens hood is included|
|Light weight (455 gr)|
|No built-in auto focus motor (the Nikon version)|
|Works only on cameras with APS-C sensor|
|No built-in image stabilizer|
|Poor aperture value with its f/4,5|
|A variable lens brightness at different focal lengths|
|The lens is called 'Macro' but can not reproduce at a scale of 1:1|
|This lens has been replaced by several newer versions|
|The lens is not sealed against moisture and dust|