Sigma 30mm F2.8 EX DN
The Sigma 30mm F2.8 EX DN is a standard prime lens for Sony E and Micro Four-Thirds mounts, announced by Sigma in January 2012. Along with the Sigma 19mm F2.8 EX DN, it was part of the first release of Sigma lenses for compact interchangeable lens cameras, and hence the inception of the "DN" line, created by Sigma to cater to these cameras,[1] an offering that in January 2013 was expanded with another lens, the Sigma 60mm f/2.8 DN Art.[2]
 Sigma 30mm F2.8 EX DN lens | |
| Maker | Sigma |
|---|---|
| Lens mount(s) | Sony E-mount, Micro Four Thirds |
| Technical data | |
| Type | Prime |
| Focus drive | Micromotor |
| Focal length | 30mm |
| Focal length (35mm equiv.) | 45mm |
| Image format | APS-C |
| Aperture (max/min) | f/2.8 - 22.0 |
| Close focus distance | 0.30 metres (0.98 ft) |
| Max. magnification | 0.12x |
| Diaphragm blades | 7 |
| Construction | 7 elements in 5 groups |
| Features | |
| Manual focus override |  Yes |
| Weather-sealing |  No |
| Lens-based stabilization | No |
| Aperture ring | No |
| Application | Landscape, Street |
| Physical | |
| Max. length | 40.5 millimetres (1.59 in) |
| Diameter | 60.8 millimetres (2.39 in) |
| Weight | 140g |
| Filter diameter | 46mm |
| Accessories | |
| Lens hood | LH520-03, Barrel-type |
| Case | shipped with hardcase |
| History | |
| Introduction | 2012 |
| Retail info | |
| MSRP | $199 USD |
Construction
The lens has a matte black plastic exterior but features a metal mount.
Image quality
Sharpness is already very high wide open and across the frame. Stopping down yields excellent resolution.[3]
Chromatic aberration is well controlled as is vignetting. Distortion is barrel shaped on a low level.[4]
One drawback is that this lens is slow (f/2.8) compared to other standard prime lenses which usually have a max aperture of f/1.4 - f/1.8. But it image quality, its small size and low weight makes this lens an ideal partner for APS-C and MFT cameras.[5]
"Art" series version
An aesthetically updated version, the Sigma 30mm F2.8 DN Art was announced by Sigma on January 29, 2013.[6][7][8] It has a glossy black (or silver) plastic exterior with the Sigma Art "A" badge on the side of the lens. It features a large manual focus ring and a detachable barrel-type lens hood.
The optics are identical to the original version.[9]
References
- "Sigma launches DN lens line with two F2.8 Primes". 10 January 2012.
- "Sigma announces 60mm F2.8 for mirrorless and redesigned 30mm F1.4 DC".
- Alhadeff, Marc (2018-06-17). "Sigma 30mm F2.8 DN Art (APS-C) for Sony E mount test/review on Sony Alpha Blog". Sony Alpha Blog. Retrieved 2019-06-20.
- "Review: Sigma 30mm f/2.8 DN Art (Sony E Mount) - Page 2 of 3". Admiring Light. 2014-07-03. Retrieved 2019-06-20.
- "Review: Sigma 30mm f/2.8 DN Art (Sony E Mount) - Page 3 of 3". Admiring Light. 2014-07-03. Retrieved 2019-06-20.
- "Sigma 30mm F2.8 DN Art for Sony E-mount lens review: Digital Photography Review". dpreview. Retrieved 2017-06-29.
- "Sigma 30mm F2.8 DN Art Specifications". Imaging Resource. Retrieved 2017-06-29.
- "Sigma 30mm f/2.8 DN a MFT mount lens review: Accessibly priced, compact and a good performer?". 30 July 2013.
- "Sigma 30mm F2.8 EX DN for Sony E-mount lens review: Digital Photography Review". dpreview. Retrieved 2017-06-29.