Panasonic Lumix G Vario 100-300mm f/4-5.6 II POWER O.I.S. Lens
The Panasonic 100-300mm f/4-5.6 II POWER O.I.S. is a 100–300mm f/4 lens designed for Micro Four Thirds mount cameras. Used copies start from $400.81 on GearFocus, with buyer protection on every purchase.

Panasonic Lumix G Vario 100-300mm f/4-5.6 II POWER O.I.S. Lens
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Lens Overview — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
Key Features — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
200-600mm Equivalent Reach: The 100-300mm focal length doubles to a 200-600mm equivalent on Micro Four Thirds, making it well-suited for wildlife, sports, and bird photography.
f/4-5.6 Maximum Aperture: Opens to f/4 at the wide end, providing a useful starting point for light gathering across the telephoto zoom range.
POWER O.I.S. Stabilization: Panasonic's optical image stabilization system reduces the effect of camera shake during handheld shooting at long focal lengths.
Micro Four Thirds Mount: Compatible with the broad ecosystem of MFT mirrorless cameras from Panasonic and Olympus/OM System.
Autofocus Support: Built-in autofocus enables tracking of moving subjects, with manual focus also available for precise control when needed.
520g Lightweight Build: At 520 grams, this lens is relatively light for its telephoto reach, reducing fatigue during extended handheld or travel use.
Lens Specifications — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Birding, Adventure |
| Lens Type | Zoom |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Zoom |
| Focal Length | 100–300mm |
| Maximum Aperture | f/4 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical |
| Filter Thread | 67mm |
Description — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
The Panasonic Lumix G Vario 100-300mm f/4-5.6 II is a telephoto zoom lens designed specifically for the Micro Four Thirds mirrorless system. Its focal length range spans 100mm to 300mm, making it well-suited for telephoto shooting scenarios where reaching distant subjects is the priority. The lens opens to a maximum aperture of f/4 at the wide end of the zoom range.
Built-in optical image stabilization is included to help manage camera shake when shooting handheld at longer focal lengths. The 67mm filter thread makes it straightforward to use popular filter accessories without specialist or hard-to-find sizes. Weighing 520 grams, it remains practical for handheld use over extended sessions.
Both autofocus and manual focus modes are supported, offering flexibility across different shooting styles and subject types. The Micro Four Thirds mount ensures compatibility with the broad range of mirrorless cameras built around that standard.
Pros — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
- ✓Wide focal length range of 100-300mm covers a broad telephoto shooting spectrum
- ✓Maximum aperture of f/4 at the wide end provides solid light gathering for a telephoto zoom
- ✓Built-in optical image stabilization helps control camera shake during handheld use
Cons — Panasonic 100-300mm f/4-5.6 II POWER O.I.S.
- ✗Maximum aperture of f/4 at the wide end narrows as you zoom toward 300mm, limiting low-light performance at longer focal lengths
- ✗Micro Four Thirds mount limits compatibility to cameras supporting that specific standard
- ✗No information available in specs regarding minimum focus distance or maximum magnification ratio











