The Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS is a Micro Four Thirds telephoto zoom that delivers a 200-800mm equivalent focal range, built-in optical image stabilisation, autofocus, and a 1.3m minimum focus distance — all in a 1120g package designed for wildlife, sport and travel shooting.
Key Specifications
- Focal length: 100-400mm (200-800mm equivalent on Micro Four Thirds cameras)
- Maximum aperture: f/5 (wide) – f/6.3 (tele)
- Minimum aperture: f/22
- Image stabilisation: Yes, built-in IS
- Minimum focus distance: 1.3m
- Filter thread: 72mm
- Aperture blades: 9
- Weight: 1120g
- Lens mount: Micro Four Thirds
Who is the Olympus 100-400mm f/5-6.3 IS for?
This lens was built for photographers who want serious reach without hauling a massive kit. The 200-800mm equivalent range makes it a natural choice for birding, wildlife, and sports from the sidelines — anywhere you need distance on your side. The built-in IS helps keep shots steady when you're handholding at the long end, and at just 1120g it's genuinely backpack-friendly. The 1.3m minimum focus distance also makes it a surprisingly capable tele-macro option, letting you fill the frame with insects or flowers without having to creep right up to your subject. If you shoot on any mirrorless body with a Micro Four Thirds mount, this lens slips straight in without an adapter. It pairs naturally with bodies that offer in-body stabilisation (IBIS) for even steadier results. If you're weighing it against alternatives, the Panasonic Leica DG Vario-Elmar 100-400mm f/4-6.3 ASPH is the closest rival in this mount, and the Olympus M.Zuiko Digital ED 300mm f/4 IS PRO is worth a look if you prioritise a fixed aperture over zoom range. For a lighter, shorter reach option, the Panasonic Lumix G Vario 100-300mm f/4-5.6 II Power OIS sacrifices 100mm of reach but offers a marginally wider aperture at the wide end.
Buying a used Olympus 100-400mm f/5-6.3 IS
Picking up this lens second-hand makes a lot of sense. It's a relatively large investment new, so buying used lets you land in serious telephoto territory without the full retail hit. Every pre-owned lens on Camera-tweedehands.nl is individually photographed and professionally inspected, so you know exactly what condition you're getting. All items come with a minimum 12 months warranty — the exact period is shown on the variant listing. Olympus glass holds up well over time, and a used copy in good condition will perform identically to a new one optically.
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