M.Zuiko 12-40mm f/2.8 PRO IIvs Tamron 17-28mm f/2.8 Di III RXD

GearFrame · Updated March 2026

OM System M.Zuiko 12-40mm f/2.8 PRO II OM System M.Zuiko 12-40mm f/2.8 PRO II (2022) From £849 Best for Travel, reportage & everyday photography on Micro Four Thirds View M.Zuiko 12-40mm f/2.8 PRO II
VS
Tamron Tamron 17-28mm f/2.8 Di III RXD Tamron Tamron 17-28mm f/2.8 Di III RXD (2019) From £649 Best for Landscape, architecture & astrophotography View Tamron 17-28mm f/2.8 Di III RXD

Which should you buy?

Travel, Reportage & Everyday Photography On Micro Four Thirds — M.Zuiko 12-40mm f/2.8 PRO II (2022): The definitive standard zoom for Micro Four Thirds — compact, versatile, and PRO-built for demanding conditions.

Landscape, Architecture & Astrophotography — Tamron 17-28mm f/2.8 Di III RXD (2019): The compact f/2.8 ultra-wide for Sony FE — lightweight, weather-sealed, and optically excellent at a fraction of Sony's own G-Master price.

↓ Full specifications below

Quick take: The tamron 17-28mm f/2.8 di iii rxd is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification M.Zuiko 12-40mm f/2.8 PRO II (2022)Tamron 17-28mm f/2.8 Di III RXD (2019)
Price £849 £649
Sensor Micro Four Thirds (MFT) f/2.8 (constant max aperture)
Video N/A — lens 19cm minimum focus distance
Autofocus MSC (Movie & Still Compatible) — fast and quiet RXD (Rapid eXtra-silent stepping Drive) linear motor
Stabilisation None (relies on in-body IBIS) None (relies on body IBIS)
Burst Rate N/A
Battery Life N/A
Weight 382g 420g
Dimensions 69.9mm diameter × 87.3mm length 75.0 × 99.6mm
Weather Sealed Yes Yes
Viewfinder N/A
Screen N/A
Mount 62mm filter thread Sony FE (full-frame E-mount)
Memory Cards N/A
Connectivity N/A
Genre M.Zuiko 12-40mm f/2.8 PRO IITamron 17-28mm f/2.8 Di III RXD
Travel
9.0
Landscape
9.0
9.0
Street
9.0
7.0
Architecture
9.0
Astrophotography
9.0
Vlogging & Video
9.0
Portrait
4.0
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