Olympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS Lens - Brand New review

While its two stops slower than the M.Zuiko Digital ED 300mm f/4.0 IS PRO lens at the 300mm focal length, the M.Zuiko Digital ED 100-400mm f/5.0-6.3 IS lens offers a more versatile alternative that is smaller, lighter and more affordable.

Olympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS Lens - Brand New review

First off, there is no doubt that Olympus have produced a superb lens, both for ease of use and for features provided. Performance is also excellent, better than the bald figures suggest. The IS system works well, extending the usefulness of the lens as the light levels fall.

Very good sharpness, Low CA and distortion, Virtually no flare, Weather resistance, Very close focusing, Blisteringly fast AF, Lovely bokeh, Effective Image Stabilisation, Low vignetting, Excellent price, Supports Image Stacking, Tripod mounting collar, Light and Compact

Modest maximum aperture

Olympus M.Zuiko Digital ED 100-400mm F5.0-6.3 IS Lens - Brand New review

Top-end, long telephoto lenses do not come cheap so you have to accept some compromises if you want to get a long lens for wildlife photography without dipping deep into your bank account.

Compact for the effective focal length (200-800mm), Stabilised, Dust and weatherproof

Variable aperture with a maximum of f/5.6-6.3, Stabilisation not compatible with Sync IS