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Opteka
Opteka 12mm f/2.8 HD MC Manual Focus Wide Angle Lens for Micro Four Thirds Mount
Manual-focus 12 mm wide-angle lens for Micro Four Thirds with 99-degree view, f/2.8 aperture and 3.9-inch minimum focus
- PartCompact ILC Lenses
- TypeWide Angle Lens
- ColorBlack
- Diameter72mm
- CompatibilityMicro Four Thirds System
- Focus TypeManual Focus
- Ultra-wide 99-degree view captures expansive scenes
- Fast f/2.8 aperture gathers light in dim conditions
- 12 elements in 10 groups reduce optical aberrations
- 9-blade diaphragm creates smooth background blur
- Clickless aperture ring allows quiet video adjustments
Wide-Angle 12mm for Micro Four Thirds
The Opteka 12mm f/2.8 is a manual-focus wide-angle lens built for Micro Four Thirds cameras. It gives photographers a 99-degree diagonal view equivalent to 24mm on the format. The all-metal barrel and clickless aperture ring suit shooters who want tactile control over exposure and focus. It is not for users who require autofocus or electronic aperture coupling.
f/2.8 to f/22 range with deep focus at f/5.6
The maximum aperture of f/2.8 provides decent low-light capability while the minimum stops down to f/22 for extended depth of field. At f/5.6 everything from 1.4 feet to infinity falls in focus, useful for zone focusing in street or architectural work. Close focus stops at 3.9 inches (9.9 cm), limiting extreme macro work. The 9-blade diaphragm renders soft backgrounds when shooting wide open.
72mm filter thread and 12-element optical design
The lens uses 12 elements in 10 groups including one super-low dispersion element to curb chromatic aberration. HD anti-reflective coating reduces flare and ghosting in high-contrast scenes. A 72mm front thread accepts standard filters without vignetting at this focal length. The ridged metal focus ring and clickless aperture ring operate smoothly, while the lightweight 13.4 oz body balances well on compact Micro Four Thirds bodies.
Highlights
- Ultra-wide 99-degree view captures expansive scenes
- Fast f/2.8 aperture gathers light in dim conditions
- 12 elements in 10 groups reduce optical aberrations
- 9-blade diaphragm creates smooth background blur
- Clickless aperture ring allows quiet video adjustments
Specifications
| Brand | Opteka |
|---|---|
| Model | OPTM1228M43 |
| Part | Compact ILC Lenses |
| Type | Wide Angle Lens |
| Color | Black |
| Diameter | 72mm |
| Compatibility | Micro Four Thirds System |
| Focus Type | Manual Focus |
| Focal Length | 12 mm |
| Aperture | Maximum: f/2.8 Minimum: f/22 |
| Camera Mount | Micro Four Thirds |
| Angle of View | 99 Degrees |
| Minimum Focus Distance | 3.9 in. |
| Lens Construction | 12 elements in 10 groups |
| Filter thread (Diameter) | 72 mm |
| Specifications | Clickless aperture control ring enables smooth adjustments during shooting -- Great for architectural, interior, and landscape photography |
| Autofocus | No |
| Features | 9-blade aperture diaphragm delivers beautiful, soft backgrounds -- 3.9-inch (9.9cm) minimum focusing distance |
| Weight | 13.4 oz |
Questions about this item
Will this 12mm f/2.8 lens mount directly on my existing Micro Four Thirds camera body?
Yes, it uses the Micro Four Thirds mount so it attaches natively to any Panasonic or Olympus MFT body without an adapter.
How can I verify the 99-degree angle of view is performing correctly after mounting the lens?
Frame a measured interior corner at 3.9 inches minimum focus; the captured scene should span the specified 99-degree diagonal with minimal edge distortion.
Does the box include a 72mm filter or hood, or do I need to purchase them separately?
The package supplies the lens, front and rear caps, and a soft nylon pouch; 72mm filters and a dedicated hood are sold separately.
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