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Sigma 45mm f2.8 DG DN Contemporary

Specifications

BrandSigma
CategoryNormal
Prime or ZoomPrime
Focus TypeAuto
Focal length (mm)45
Aperture (max)2.8
Filter Size (mm)55
Weight (g)215
Length (mm)46
Diameter (mm)64
Weather Sealed
Image Stabilization
Min. focus distance (m)0.24
Max. magnification0.25
Release Year2019
Release Price (USD)549
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Description and Reviews

Key Take-Aways:

The Sigma 45mm f/2.8 DG DN Contemporary is an ultra-light 215g standard prime, designed as an I-series style compact lens for everyday use on mirrorless cameras. Professional reviews highlight its solid metal build, smooth rendering, good close-focus ability, and portability, while noting trade-offs such as modest sharpness wide open, visible vignetting, and a relatively high price compared to faster alternatives. As of Sep 14 2025, user sentiment is mixed to positive: many enjoy its compact size, build quality, and pleasing character rendering, while others find it underwhelming optically relative to its cost.

From Sigma:

AN ENJOYABLE PRIME LENS YOUR CAMERA CAN HARDLY PART WITH ―ADMIRABLY BALANCED PERFORMANCE AND SIZE. FOR FULL-FRAME MIRRORLESS CAMERAS FROM OUR CONTEMPORARY LINE.

Embody the Contemporary line’s concept of “Pursuing optimum balance”. Achieve the best balance of a lens suited for everyday use.

Designed for combination with relatively small full-frame mirrorless cameras, this standard lens pursues easy operability as a regular prime lens by balancing its easy-to-carry size and high optical performance, thereby embodying the Contemporary line’s development concept of “pursuing optimum balance,” and becoming the perfect first lens in the lineup dedicated for full-frame mirrorless cameras.

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