Hands on: OM System M.Zuiko 12-40mm f/2.8 Pro II review

The OM System M.Zuiko 12-40mm f/2.8 Pro II is a 24-80mm equivalent with unrivaled IP53 weather sealing

OM System M.Zuiko 12-40mm f/2.8 Pro II
(Image: © James Artaius)

Early Verdict

In almost every respect, the OM System M.Zuiko 12-40mm f/2.8 Pro II is identical to the original Olympus M.Zuiko 12-40mm f/2.8 Pro. The key difference is that it boasts incredible IP53-rated weather sealing (up from the standard IPX1), and obviously features the new OM System branding. Otherwise, this is the same fantastic 24-80mm f/2.8 equivalent lens that's bright enough to shoot almost anything and light enough to shoot almost anywhere.


  • +

    Extremely compact

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    Weather sealed to IP53

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    Manual focus clutch


  • -

    Same formula as 12-40mm I

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If it ain't broke, don't fix it? The OM System M.Zuiko 12-40mm f/2.8 Pro II begs to differ. This fantastic standard zoom lens, with a 35mm equivalent 24-80mm field of view, takes everything that was great about the original Olympus M.Zuiko 12-40mm f/2.8 Pro and makes a massive new improvement.

The OM System M.Zuiko 12-40mm f/2.8 Pro II is one of two lenses boasting IP53-rated weather sealing to complement the new Olympus OM-1 (the other being the new OM System M.Zuiko 40-150mm f/4 Pro). 

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James Artaius

The editor of Digital Camera World, James has 21 years experience as a journalist and started working in the photographic industry in 2014 (as an assistant to Damian McGillicuddy, who succeeded David Bailey as Principal Photographer for Olympus). In this time he shot for clients like Aston Martin Racing, Elinchrom and L'Oréal, in addition to shooting campaigns and product testing for Olympus, and providing training for professionals. This has led him to being a go-to expert for camera and lens reviews, photo and lighting tutorials, as well as industry news, rumors and analysis for publications like Digital Camera MagazinePhotoPlus: The Canon MagazineN-Photo: The Nikon MagazineDigital Photographer and Professional Imagemaker, as well as hosting workshops and talks at The Photography Show. He also serves as a judge for the Red Bull Illume Photo Contest. An Olympus and Canon shooter, he has a wealth of knowledge on cameras of all makes – and a fondness for vintage lenses and instant cameras.