Sigma’s latest lens is an instant classic. Here’s what I want next for my APS-C camera

Sigma's recently launched 50-120mm F2.8 DC OS lens is one of the most exciting offerings of 2026. The lens, available in a compact size, perfectly utilizes the advantages of the APS-C format. Its impressive range of 75-180mm equivalent encourages its use and showcases Sigma's commitment to filling the gaps for APS-C users.

Currently, Sigma provides a range of fine f/2.8 APS-C zooms, including the ultra-wide 10-18mm, standard 18-50mm, and telephoto 50-120mm lenses. They also offer a selection of f/1.4 primes with focal lengths of 12mm, 15mm, 23mm, 30mm, and 56mm. Sigma's design philosophy focuses on creating small, high-quality lenses to make the most of APS-C's smaller sensor size. An example is their more recent 15mm F1.4 DC, which replaced the older 16mm model with a more compact design and added an aperture ring for better usability.

As a long-time Fujifilm APS-C user, the author is pleased to see Sigma taking the format seriously. However, they believe some APS-C lenses are still missing, regardless of the camera brand. The author suggests Sigma consider making a macro lens in the 60-70mm equivalent range, similar to the classic 90-105mm range on full-frame cameras.

This compact, weather-sealed lens should feature internal focusing and an aperture/control ring. The only 'serious' APS-C macro currently available is the Fujifilm XF 80mm F2.8, which is large and heavy for its size. The author suggests a more compact alternative, following the OM System M.Zuiko 60mm F2.8 Macro for Micro Four Thirds.

Additionally, the author proposes that Sigma should design travel-tastic zoom lenses, perfect for lightweight travel setups. Olympus' 12-100mm F4 serves as an example of a genuinely high-quality 24-200mm equivalent zoom, and both Sigma and Tamron have extensive zoom ranges.