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Sigma 30mm f/1.4 DC DN C (Contemporary) Autofocus APS-C Lens for Sony E-Mount, Black (52)
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$316.00
30mm f/1.4 APS-C prime built for Sony E mirrorless
On an APS-C Sony body, this 30mm focal length lands at roughly 45mm equivalent, putting you squarely in normal-lens territory. That f/1.4 maximum aperture gives you real separation between subject and background at close range, and the 30cm minimum focus distance means you can work fairly tight without switching glass. At 9.35 oz and just under 73mm long, it disappears in a bag alongside a compact mirrorless body.
The optical formula runs 9 elements in 7 groups, with two aspherical elements and one high-refractive index element doing the heavy work against spherical aberration and distortion. Super Multi-Layer Coating keeps flare and ghosting from washing out frames when you're shooting toward light sources. The stepping motor autofocus is fast and near-silent, which matters the moment you start rolling video. Rubber sealing at the mount adds a basic layer of protection against dust. Each unit is assembled and inspected by hand in Sigma's Aizu factory.
For Sony APS-C shooters who want f/1.4 performance without the bulk or cost of a full-frame system lens, this is a well-made, purpose-built answer.
Who It's For
Street photographers working Sony APS-C bodies get a near-normal field of view at 50.7° and a compact footprint that doesn't draw attention. Video creators benefit from the stepping motor's quiet operation, which keeps AF noise out of on-camera audio. Portrait shooters in low light can lean on f/1.4 to separate a subject at close focus distances without needing external lighting. Documentary and travel photographers who need one fast prime that covers candid, environmental, and available-light work will find the 265g weight easy to carry all day.
Key Features
- f/1.4 maximum aperture for subject separation and low-light performance
- 45mm equivalent on APS-C Sony E bodies
- Two aspherical and one high-refractive index element reduce aberration
- Stepping motor autofocus delivers silent, smooth focus for video
- 30cm minimum focus distance enables tight environmental work
- 9.35 oz with 73.3mm length fits compact mirrorless systems
- Super Multi-Layer Coating controls flare and ghosting
- Hand-assembled in Aizu factory
FAQ
- What's the effective focal length on Sony APS-C bodies?
- 30mm × 1.5 crop factor = 45mm equivalent, placing it firmly in normal lens territory for composition and framing.
- How close can you focus with this lens?
- Minimum focus distance is 30cm (11.81 inches), letting you work fairly tight for environmental portraits or product work without extension tubes.
- Is autofocus quiet enough for video?
- Yes. The stepping motor (STM) delivers smooth, near-silent focus transitions, which is why Sigma engineered it specifically for video work on mirrorless bodies.
- What's the optical design doing to control aberration?
- Two aspherical elements and one high-refractive index element suppress spherical aberration and distortion. Super Multi-Layer Coating cuts flare and ghosting in backlit scenarios.
- How much does it weigh and how compact is it?
- 9.35 oz at 73.3mm long and 64.8mm in diameter. It disappears next to a compact APS-C mirrorless body in any bag.
- Does it have weather sealing?
- Rubber sealing at the mount provides basic dust protection, but this isn't a fully sealed lens for harsh weather environments.
- Where are these made?
- Hand-assembled and inspected in Sigma's Aizu factory in Japan, part of their Sigma Global Vision line.
| Specification | Value |
|---|---|
| Focal Length | 30mm |
| Max Aperture | 1.4 |
| Min Aperture | 16 |
| Mount | Sony E |
| AF System | Yes |
| Min Focus Distance | 11.81" (30 cm) |
| Filter Size | 52 mm |
| Lens Groups | 7 |
| Lens Elements | 9 |
| Angle Of View | 50.7° |
| Length | 2.89" (73.3 mm) |
| Maximum Diameter | 2.55" (64.8 mm) |
| Package Weight | 0.96 lb |
| Box Dimensions | 5.45 x 4.3 x 4.2" |
| AF Motor | Stepping Motor (STM) |
| Lens Line | Contemporary |
| Lens Series | Sigma Global Vision |
| Weight | 9.35 oz (265 g) |
This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.
| Brand Name | Sigma |
|---|---|
| Filter Size | 52mm |
| Focus Type | Autofocus (lens motor) |
| Lens Mount | Sony E Mount |
| Lens Type | Standard / Normal |
| Max Focal Length | 30mm |
| Min Focal Length | 30mm |
