OM System M.Zuiko OM SYSTEM M. Zuiko 150-400mm f/4.5 TC 1.25 IS PRO Review
Focal Length 400mm
Max Aperture f/4.5
Mount Olympus OM
Stabilization true
Weather Sealed
Weight G 1880
Af Type Autofocus
Lens Type Zoom
51 Overall Score
Overview
Performance
Pros & Cons
Pros
- Strong optical (100th percentile) 100th
- Strong stabilization (89th percentile) 89th
Cons
- Below average build (8th percentile) 8th
- Below average aperture (21th percentile) 21th
Specifications
Full Specifications
Optics
| Type | Zoom |
| Focal Length Min | 400 |
| Focal Length Max | 400 |
| Elements | 28 |
| Groups | 18 |
Aperture
| Max Aperture | f/4.5 |
| Min Aperture | f/22 |
| Constant | Yes |
| Diaphragm Blades | 9 |
Build
| Mount | Olympus OM |
| Format | Micro Four Thirds |
| Weight | 1.9 kg / 4.1 lbs |
| Filter Thread | 95 |
AF & Stabilization
| AF Type | Autofocus |
| Stabilization | Yes |
Focus
| Min Focus Distance | 1300 |
| Max Magnification | 1:7.7 |
Value & Pricing
Feb 21, 2026 $9,000
Feb 20, 2026 $8,800
Feb 20, 2026 $8,800
vs Competition
Verdict
Deal Tracker
Feb 21, 2026 $9,000
Feb 20, 2026 $8,800
Feb 20, 2026 $8,800