Comparison of Olympus 12-40mm ƒ/2.8 Pro M.Zuiko Digital ED and Panasonic 16-35mm f/4 Lumix S Pro (S-R1635) [S]ave
| Attribute |  Panasonic 16-35mm f/4 Lumix S Pro (S-R1635) × |  Olympus 12-40mm ƒ/2.8 Pro M.Zuiko Digital ED × |
|---|---|---|
| Aperture (f) | 4.00 - 22.00 | 2.80 - 22.00 |
| Diaphragm Blades Type | circular | circular |
| Filter Size (mm) | 77 | 62 |
| Notes | Splash- and dust-resistant. Included Accessories: front and rear lens caps, lens hood, storage bag. | Dust and Splash-proof |
| Focus Details | Internal with double-magnet linear motor; AF/MF clutch mechanism | - |
| Type | Wide Zoom | Standard Zoom |
| Diaphragm Blades | 9 | 7 |
| Diameter (mm) | 85 | 70 |
| Image Circle | 35mm (L-Mount) | Image Circle |
| Focal Length (mm) | 16.00 - 35.00 | 12.00 - 40.00 |
| Brand | Panasonic | Olympus |
| Name | Panasonic 16-35mm f/4 Lumix S Pro (S-R1635) | Olympus 12-40mm ƒ/2.8 Pro M.Zuiko Digital ED |
| Weight (g) | 500 | 382 |
| Diagonal Angle of View (degree) | 63.00 - 107.00 | 30.00 - 84.00 |
| Lens Construction | 12 elements in 9 groups, including 1 UHR (Ultra-High Refractive Index), 1 ED and 3 aspherical elements; Fluorine coating on front element. | 14 elements in 9 groups, including 1 aspherical ED element, 2 aspherical elements, 1 DSA element, 2 ED element, 1 HD element, and 2 HR elements |
| Zoom System | Rotary | Rotary |
| Closest Focus (m) | 0.25 | 0.2 |
| 35mm Equivalent | - | 24 - 80mm |
| Length (mm) | 99.6 | 84 |
| APS Equivalent | 24 - 52.5mm | - |
| Magnification Ratio (x) | 0.23 | 0.3 |
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