Sigma 45mm f/2.8 DG Contemporary Lens Silver for L Mount

• Sigma’s lightest and most compact full-frame prime, which is ideal for day-to-day shooting and travel photography
• Delivers strong optical performance with smooth bokeh and minimal chromatic aberration
• Stylish silver finish and all-metal build provide a premium feel with durable build quality that’s enjoyable to use
• Compact size balances perfectly on smaller L-Mount mirrorless bodies, while resolving high-resolution sensors
• With an f/2.8 aperture, the lens performs well in low light, works for handheld shooting and creates clean background blur

Key Features

• Full-frame 45mm standard prime lens for L-Mount
• Lightweight at 215g and just 46.2mm long
• Fast f/2.8 maximum aperture for handheld and low-light shooting
• Optical design with 8 elements in 7 groups (2 aspherical elements)
• Smooth, rounded bokeh with attractive background blur
• All-metal construction with aperture ring and knurled controls
• Internal focusing
• 1:4 magnification for close-up detail
• 55mm front filter thread
• Weather-sealed mount for dust and moisture resistance

Sigma 45mm f/2.8 DG Contemporary Lens Silver for L Mount Summary

The Sigma 45mm f/2.8 DG DN Contemporary Lens in Silver is Sigma’s smallest and lightest full-frame prime lens, which is made specifically for mirrorless systems. This compact standard lens delivers high-quality results from a stylish and highly portable size, which weighs just 215g and measures only 46.2mm long.

Originally launched as the first lens in Sigma’s Contemporary series, the 45mm f/2.8 sets the tone for the range, by combining Sigma’s classic recipe of precision optics, premium construction, and the kind of balanced handling that works perfectly with today’s compact full-frame mirrorless cameras. Whether you capture street photography, portraits, travel shots or everyday snaps, this little  offers a natural field of view, which is perfect for a variety of subjects.

Despite its modest size and bright f/2.8 aperture, the 45mm f/2.8 DG DN delivers outstanding sharpness across the frame and produces attractive bokeh with smooth transitions.  has designed it with an all-metal exterior includes a knurled focus ring, aperture ring and metal lens hood, contributing to its tactile feel and durable build quality.

This model is perfect for photographers and videographers who want a well-made walk-around prime, and the 45mm f/2.8 stands out for its high performance, usability and character, all while staying compact in your kit bag, and discreet when mounted.

Sigma 45mm f/2.8 DG Contemporary Lens Silver for L Mount in More Detail

Small, Light and Beautifully Built

Weighing in at just 215g and measuring just 46.2mm tall, the Sigma 45mm f/2.8 is an ideal travel lens for photographers who want light and simple optics. The metal body includes precision-machined aluminium components across the barrel, lens hood, focus ring and aperture ring, with a tactile knurled finish that’s easy to grip. The mount also includes a rubber seal to help prevent dust and moisture from entering the camera system.

Sharp Performance Across the Frame

Despite its compact build, optical performance is impressive. The lens features 8 elements in 7 groups, including two aspherical elements to reduce chromatic aberration and keep edge-to-edge sharpness, even when shooting wide open at f/2.8. Flare and ghosting are well controlled, and the lens performs reliably in a variety of lighting conditions.

Smooth Rendering and Natural Bokeh

Although the f/2.8 aperture isn’t as wide as Sigma’s larger Art primes, it still produces a shallow depth of field and clean bokeh that doesn’t distract viewers from the subject. The rendering is soft and subtle, especially when shooting portraits or closer subjects, and the lens offers a natural perspective that sits nicely between 35mm and 50mm, with a field of view that is very similar to human vision.

Prime Option

With a lightweight and portable design, this is remarkably light for any lens, let alone a full-frame prime with a fast F2.8 aperture, all-metal build and stunning image quality. It is designed so that it can be carried around anywhere without weighing you down, which is ideal for all-day shooting, and it pairs perfectly with smaller mirrorless camera bodies. The lens is less than a third of the length of the Sigma 40mm F1.4 DG HSM | Art, and is just 17% of the weight, although its maximum aperture is a full two stops narrower.

Part of the Contemporary series

This lens is one of the lenses in the Sigma’s Contemporary series of compact, which are high-quality primes especially for mirrorless cameras. They have a uniform optical character, look, and feel, and so it’s perfect to use the lenses in a set together. Each renders similar bokeh, colour, and design as expected by the photographer, even when shooting at different focal lengths.

Other features

• Brass mount
• AF/MF switch
• 7 rounded aperture blades
• Water and oil repellant
• Super multi-layer coating
• Internal focus
• 55mm front filter thread

What’s in the Box

• Sigma 45mm f/2.8 DG Contemporary Lens Silver for L Mount
• Front and rear lens caps