Rokinon 7.5mm T3.8 Cine UMC Fisheye Lens for Micro Four Thirds
The Rokinon 7.5mm T3.8 is a 7.5mm f/3.8 lens designed for Micro Four Thirds mount cameras. Used copies start from $110.5 on GearFocus, with buyer protection on every purchase.
Rokinon 7.5mm T3.8 Cine UMC Fisheye Lens for Micro Four Thirds
Used Rokinon 7.5mm T3.8 Listings on GearFocus
Lens Overview — Rokinon 7.5mm T3.8
Key Features — Rokinon 7.5mm T3.8
7.5mm Fisheye Prime: Fixed focal length delivers a consistent, immersive fisheye perspective purpose-built for the Micro Four Thirds format.
T3.8 Cinema Aperture Rating: T-stop rating reflects actual light transmission rather than theoretical f-stop, giving cinematographers predictable, consistent exposure across lenses.
Micro Four Thirds Mount: Native MFT mount ensures direct compatibility with Micro Four Thirds mirrorless bodies from Panasonic and Olympus/OM System.
Cine-Style Manual Focus: Smooth, geared focus ring is designed for precise, repeatable focus pulls suited to video and cinema workflows.
UMC Lens Coating: Ultra Multi-Coating reduces flare and ghosting, helping maintain contrast and color accuracy in high-contrast lighting situations.
Lightweight at 197g: Compact build adds minimal weight to a mirrorless rig, making it practical for handheld shooting and travel setups.
Lens Specifications — Rokinon 7.5mm T3.8
| Spec | Detail |
|---|---|
| Use Cases | Astrophotography, Travel, Documentary, Video / Cinematography, Creative Effects |
| Lens Type | Fisheye |
| Format | Micro Four Thirds (MFT) |
| Zoom/Prime | Prime |
| Focal Length | 7.5mm |
| Maximum Aperture | f/3.8 |
| Camera System | Mirrorless |
| Lens Mount | Micro Four Thirds |
| Autofocus | No |
| Focus Type | Manual |
| Image Stabilization | None |
| Weight | 197g |
Description — Rokinon 7.5mm T3.8
The Rokinon 7.5mm T3.8 Cine UMC Fisheye Lens is a prime, manual focus fisheye optic built specifically for the Micro Four Thirds mirrorless mount. With a fixed focal length of 7.5mm and a wide-angle fisheye design, this lens is purpose-built for MFT shooters who want an immersive, expansive perspective from a compact form factor. The maximum aperture is rated at T3.8 — a cinema-standard T-stop measurement that reflects actual light transmission through the glass, making it a reliable choice for exposure consistency on film and video productions.
Weighing in at just 197 grams, this lens adds minimal weight to any Micro Four Thirds rig, keeping your setup portable and manageable. As a manual focus lens with no autofocus and no image stabilization, it is designed with a cine workflow in mind, where operators typically prefer hands-on control over automation. The lens is classified in the wide-angle focal length range and is formatted for the Micro Four Thirds (MFT) image circle.
No filter thread size is listed in the specifications, so filter use should be verified independently.
Pros — Rokinon 7.5mm T3.8
- ✓Dedicated Micro Four Thirds mount ensures native compatibility with MFT mirrorless camera systems
- ✓T3.8 maximum aperture provides a cinema-standard light transmission rating for predictable exposure on set
- ✓Extremely lightweight at just 197g, keeping your mirrorless rig nimble and travel-friendly
Cons — Rokinon 7.5mm T3.8
- ✗No autofocus — requires manual focus for every shot, which may slow down fast-paced stills work
- ✗No image stabilization listed, meaning handheld shooting stability depends entirely on the camera body
- ✗No filter thread size specified, which may complicate use of screw-on filters
Videos — Rokinon 7.5mm T3.8
Rokinon 7.5mm Fisheye Comparison & Review — The Adventures of Jim DeRemer