Lens finder
Sigma 15-30mm f/3.5-4.5 EX DG ASP
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Full frame sized imageLenses that create APS-C sized image are designed for digital only. They cannot be used on cameras that have image sensor larger than the APS-C format. These lenses are not suitable for film cameras either. No Ultrasonic AFLenses with ultrasonic focusing mechanism tend to be quiter and faster than traditionally focusing lenses. No stepping motor AFLenses with stepping motor focusing mechanism are better for contrast based focusing, and are quiter and faster than traditionally focusing lenses. No Low Dispersion lens element is usedLow Dispersion lens elements help to reduce chromatic aberration. Not stabilizedImage stabilization helps to reduce blur caused by hand shake, especially at high focal length or in low light situations. Image stabilization can give 1 to 3 stop advantage over none stabilized lens, based on the reciprocal rule. Metal mountCheaper lenses are usually equipped with plastic mount, while more expensive, professional lenses have metal mount. In general, metal mounts are more durable, and a good thing to have when lenses are changed a lot. When a camera is used mainly with one lens, the material of the lens mount is not that important. Internal FocusingInternally focusing lenses don't change their size while setting focus. The front lens is fixedThe fixed front lens is not rotating during zoom and/or focusing. This allows the photographer to use petal shaped lens hood. Fixed front lenses also make the use of polarization filters a lot easier. Supports drop-in filtersDrop-in filters are used in those lenses where either the front lens is too large, or the field of view doesn't permit the use of traditional filters at the front of the lens. Usually bright tele and ultra-wide angle lenses support this filter type. |
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This is an ultra-wide zoom lens that covers a large wide-angle range from 15 mm to 30 mm. With a minimum focusing distance of 30 cm throughout the entire zoom range, it is an idael lens for Digital SLR Cameras. With aspeherical lenses in the front and rear lens groups, this lens has excellent correction for distortion - a particular problem for oom lenses - and for all types of aberration, and it displays a hig level of optical performance. The lens is equipped with an integral Petal-type hood to block out extraneous light.
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Sigma 15-30mm f/3.5-4.5 EX DG ASP Specification
| Available mount(s) | Canon EF, Nikon F, Pentax K, Sony / Minolta A, Sigma |
| Application(s) | Landscape, Interiors, Architecture |
| Category(s) | Wide angle zoom |
| Multiplier | 1× |
| Stabilizer | no |
| Focal length | 15 - 30 mm (2× zoom) |
| Lens construction | 17 elements in 13 groups |
| Angle of view |
35mm: 110.5-71.6° digital: 79.3-45.0° |
| Number of blades | 8 |
| Maximum aperture | wide: f/3.5 tele: f/4.5 |
| Minimum aperture | wide: f/22 tele: N/A |
| Minimum focusing distance | 30 cm |
| Magnification | 0.17× |
| Filter size | N/A |
| Size | ∅ 87 × 132.5 mm |
| Weight | 620 g |
| Notes |
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| AF speed | N/A |
| AF sound | |
| Internal focusing | yes |
| Internal zoom | N/A |
| Fix front lens | yes |
| Mount type | metal |
| Weather sealed | N/A |
| Drop in filter | yes |
| Ultrasonic AF | no |
| Stepping motor AF | no |
| APS-C sized circle | no |
| Low dispersion lens element | no |
| Hard case | N/A |
| Soft case | N/A |
| Lens hood |
included printable lens hood |
| Tripod adapter | N/A |
| Discontinued | yes |
Sigma 15-30mm f/3.5-4.5 EX DG ASP Reviews
Other reviews
- Sigma 15-30mm f/3.5-4.5 EX DG ASP review at www.ephotozine.com (English)
- Sigma 15-30mm f/3.5-4.5 EX DG ASP review at www.tawbaware.com (English)
- Sigma 15-30mm f/3.5-4.5 EX DG ASP review at www.tawbaware.com (English)
Sigma 15-30mm f/3.5-4.5 EX DG ASP in the news
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Sigma 15-30mm f/3.5-4.5 EX DG ASP Owner Reviews
Most useful owner reviews from Amazon
I love this lens
May 18, 2005
This lens is very sharp especially at 15mm f8-16 which is the aperture we use for landscape. It can be used on 35mm film and it will be really really wide at 15mm. It can also be used with digital camera. I used with D70 and love it. It is much sharper than sigma 12-24 if you check the mtf chart at sigma web site.
It is my favorite lens.
Great wide angle
Sep 23, 2007
Great wide-angle lens for the money. Little fall-off in corners, especially at f8 and above. I would recommend this lens to anyone who cannot afford to buy the Nikon lenses. The only complaint (?) is that the zoom ring takes a bit of effort to turn. The focus is fast and accurate, and pictures are crisp.