Sigma 15-30mm f/3.5-4.5 EX DG

Last updated (14 July’10):
– Review by Photozone

The Sigma 15-30mm f/3.5-4.5 EX DG features 15-30mm at focal length with maximum aperture of f/3.5-4.5. The lens construction has 17 elements in 13 groups and has diagonal angle of view at 110.5 degrees. Closest focusing distance at 30cm and has a filter size of Rear gelatine. The Sigma 15-30mm f/3.5-4.5 EX DG lens weighs 21.7 ounces and it measures 87mm in diameter and 132.5mm long.

Sigma 15-30mm f/3.5-4.5 EX DG
Overall Rating: ★★★★☆ | Latest Price Info

Expert Reviews

Sigma 15-30mm f/3.5-4.5 EX DG Reviews

Photozone reviews the Sigma 15-30mm f/3.5-4.5 EX DG and writes;
“it very sharp throughout the range without any more weakness in terms of resolution. On the downside there’re moderately strong barrel distortions at 15mm and visible lateral CAs (color shadows at the image borders). The build quality is very nice but it is a little unfortunate that Sigma chose to implement a noisy micro motor with an imperfect AF/MF switch rather than a HSM drive.”
Rating: ★★★★½

Bythom reviews the Sigma 15-30mm f/3.5-4.5 EX DG and writes;
“From a sharpness and contrast standpoint, the lens does a quite fine job. On a 35mm body, there’s visible softening of the corners wide open, and the lens starts to show softness again (diffraction caused?) at very small apertures (f/22 and higher). In the mid-range apertures the lens is pretty darn sharp from corner to corner. On a D1x, the lens is sharp at everything but the widest and smallest apertures.”
Rating: ★★★★☆

Ephotozine reviews the Sigma 15-30mm f/3.5-4.5 EX DG and writes;
“Contrast can be classified as good with a neutral colour balance producing no casts. Flare and ghosting are reasonably well controlled, helped again by the new DG coating but, possibly due to the bulbous front element, it is possible to induce these characteristics with a strong directional torch. “
rating: N/A

User Opinions

Sigma 15-30mm f/3.5-4.5 EX DG User Reviews

Big Lens Little Price | Rating: ★★★★★
“This is the best lens for the price. I have used this lens on my 1Ds & 30D and performed remarkably. I also Had the same one when I was a Nikon shooter in fact I only had one glass that was not Nikon and this was it. I have never worried about it failing on me at all and it covers the full frame digitals as well as the 1.6x factor. It is sharp as a tack in all ranges for me that is even better than my 28-70 2.8 L series lens from Canon. “ – by Robert Torrence

its nice wide view recommended for short shooting | Rating: ★★★★☆
“I just to own this lense and its an owsome lense the image its sharp but you must be very stable to void blurriness or else it become kind of sensitive because it does not have image stabilization but most of the times its your hands for the stability or use a tripot and fix your problems, after all from a short view and large picture its so nice i had to sell it and replaced for a canon 17mm-85mm bacause i take fast and lots of pictures most of the time on those range of mm that one fitted my need. this sigma lense its very nice for an starter photographer to learn more in angles its nice i have a 40D canon as you know its fast and i am fast alson with lenses. “ – by Juan Contreras

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Sigma 15-30mm f/3.5-4.5 EX DG Sample Photos

Sigma 15-30mm f/3.5-4.5 EX DG Sample Photos @
Sigma 15-30mm f/3.5-4.5 EX DG Sample Photos @
Sigma 15-30mm f/3.5-4.5 EX DG Sample Photos @

Features & Specifications

Sigma 15-30mm f/3.5-4.5 EX DG Specifications

Sigma provides the new ultra-wide angle zoom lens from 15mm and this lens is the first of its kind in the world. It can be useful for images of landscapes, large buildings, group photographs or even more. The perspective that changes with the angle-of-view gives picture an extraordinary feeling. Delicate compositions can be adjusted by lens zooming and this is helpful for close-up photography. Provides deep depth of field with its short focal length for amazing photographic expressions. 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 (11.8 inches) throughout the entire zoom range, it is an ideal lens for Digital SLR Cameras.

It incorporates hybrid aspherical lens in the front lens group to minimize distortion and astigmatism, and molded glass aspherical lens in the rear lens group to minimize spherical aberration. Minimization of the distortion is a most important issue for zoom lens, but Sigma has succeeded, to provide image quality with minimal distortion by employing aspherical lenses. This lens incorporates an internal focusing system, which eliminates front lens rotation. Since focusing do not change its overall length, this lens is easy to hold and use. Also it is allowing the use of a Petal-type Hood. The lens also incorporates Dual-Focus (DF) mechanism. It is easy to hold the lens, since the focusing ring does not rotate during auto-focus, yet it provides adequate focusing torque of the focusing ring during manual focusing of the lens.

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