Home › Cameras › Prime › Sigma › Sigma 20mm f/2 DG Contemporary
Sigma

Sigma 20mm f/2 DG Contemporary

A compact all-metal 20mm f/2 from Sigma's I series with an aperture ring, 370g. This is the Sony E version.

Used from
£555
Available at 2 retailers
Check price at Wex Photo Video
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
RetailerPrice
Wex Photo Video
Wex Photo Video used
£555
Check on Wex Photo Video →
Amazon
Amazon
—
Check on Amazon →
Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.
Value & Depreciation
£650
Launch price
→
£588
Today
=
10%
Value drop
Over ~4 years, this camera has cost roughly £15/year to own (buy at launch price, sell today). That's one of the lower cost-per-year cameras in its class.
Core
Released
2022
Focal Length
20mm
Aperture
f/2
Compatible Mount
Sony FE
Filter Size
62mm
Dimensions
70mm diameter × 74.4mm length
Weight
370g
Weather Sealed
No
Optics & Focus
AF Motor
Stepping motor
Optical IS
None (relies on body IS if available)
Aperture Blades
9
Magnification
0.149x
Min. Focus Distance
0.22m

Select up to 2 cameras to compare against the 20mm f/2 DG Contemporary. It's always pinned as the baseline.

Select 1–3 cameras to compare
GearScore™ — Suitability by Genre

Base score — computed from verified specs for an enthusiast shooting photo and video. Camera Match adjusts it for your skill level and priorities.

Portrait
6.0
Street
6.1
Travel
5.1
Wedding & Events
5.3
Vlogging & Video
6.8
Filmmaking
5.3
Documentary
5.3
Landscape
6.6
Casual
5.7
Food
4.4
Architecture
6.5
Astrophotography
7.2
Underwater
6.1
✅ Great For
🌌
Astrophotography 7.2 Strong on maximum aperture, focal length and portability.
⚠️ Not Ideal For
🍽️
Food 4.4 Held back by close focusing and focal length.
📝 How suitability scores are calculated GearScore™ genre scores are calculated from this camera's verified specifications — autofocus, sensor, weight, weather sealing and more — weighted by what matters for each type of photography. Where a spec sheet misses something (e.g. a manual-focus rangefinder for street), we apply a documented editorial adjustment. Scores are not based on customer reviews. See our full methodology →
Price History — 20mm f/2 DG Contemporary