Sigma 45mm F2.8 DG DN I Contemporary Lens - Sony E Mount

Sigma 45mm F2.8 DG DN | Contemporary – L-Mount & Sony E-Mount

The Sigma 45mm F2.8 DG DN | Contemporary is a compact full-frame prime from Sigma’s I Series, blending premium all-metal construction, portability, and outstanding optical performance. With its natural field of view, it’s the perfect lens for street, travel, portraits, and everyday photography—a discreet companion for capturing authentic, story-driven moments.

Key Features

• 📷 Mounts: L-Mount & Sony E-Mount

• 🖼️ Sensor Format: Full-frame (DG)

• 🔎 Focal Length: 45mm – a natural, human-eye perspective

• 🌙 Aperture: F2.8 (max) – versatile for low light & subject separation

• 🌞 Minimum Aperture: F22

• 👁️ Angle of View: 51.3°

• ✨ Aperture Blades: 7 (rounded, for smooth circular bokeh)

• 📏 Minimum Focusing Distance: 24cm

• 🔍 Max Magnification: 1:4 – great for close-ups

• 🔒 Filter Thread: 55mm

Optical Performance

The lens construction of 8 elements in 7 groups, including 2 aspherical elements, ensures crisp detail, minimal distortion, and excellent control of aberrations. Wide open at F2.8, the lens delivers smooth rendering and soft background blur, while maintaining sharpness and clarity across the frame.

Compact Build & Dimensions

• L-Mount: 64.0mm × 46.2mm, Weight: 220g

• Sony E-Mount: 64.0mm × 48.2mm, Weight: 235g

With its solid all-metal build and tactile precision, the lens is compact enough to slip into a pocket, making it ideal for on-the-go creators who value discreet, lightweight gear.

Supplied Accessories

• Lens Hood (LH577-02B / LH577-02S)

• Magnetic Metal Lens Cap (LCF55-02 MB / MS)

• Standard Front Cap (LCF-55 IV)

• Rear Cap (LCR III)

• Protective Pouch

Why Choose the Sigma 45mm F2.8 DG DN?

Part of the acclaimed I Series, the Sigma 45mm balances classic lens design with modern mirrorless performance. Its understated style, smooth manual controls, and superb sharpness make it a minimalist’s dream prime lens for lifestyle, storytelling, and everyday shooting.