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Laowa 4mm f/2.8 Fisheye Lens

The Venus Optics 4mm f/2.8 is a 4mm f/2.8 lens designed for Micro Four Thirds mount cameras. Used copies start from $144.84 on GearFocus, with buyer protection on every purchase.

Laowa 4mm f/2.8 Fisheye Lens

Laowa 4mm f/2.8 Fisheye Lens

Used Venus Optics 4mm f/2.8 Listings on GearFocus

Laowa 4mm f2.8 Circular Fisheye Sony E Mount NEX
Laowa 4mm f2.8 Circular Fisheye Sony E Mount NEX

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Lens OverviewVenus Optics 4mm f/2.8

The Laowa 4mm f/2.8 Fisheye is a compact, manual-focus prime lens designed specifically for the Micro Four Thirds mirrorless camera system. Built around a fisheye optical design with an ultra wide-angle focal length of 4mm, this lens offers a distinctive perspective that sets it apart from conventional wide-angle options. With a maximum aperture of f/2.8, it provides a reasonably bright opening for a fisheye lens, allowing for use in a variety of lighting conditions.

Weighing just 135g, it is a lightweight addition to any Micro Four Thirds kit, making it well-suited for travel, creative photography, and situations where minimizing pack weight matters. Focus is entirely manual, which suits the deliberate, creative shooting style that fisheye lenses naturally encourage. There is no image stabilization on board, so shooters will need to account for that when working in lower light.

The lens has no filter thread, which is typical for fisheye designs given the extreme curvature of the front element. For Micro Four Thirds users looking to explore the fisheye format in a small, lightweight package, this lens presents a straightforward and purpose-built option.

Key FeaturesVenus Optics 4mm f/2.8

4mm Fisheye Prime: Delivers a characteristic fisheye perspective with strong barrel distortion and an expansive field of view on Micro Four Thirds cameras.

f/2.8 Maximum Aperture: Reasonably bright opening for a fisheye lens, allowing use in lower light conditions without relying on extremely high ISO settings.

Micro Four Thirds Mount: Designed specifically for the MFT system, making it directly compatible with cameras from Olympus and Panasonic without adapters.

135g Lightweight Build: Compact and light enough to carry without noticeably adding to the weight of a travel or everyday Micro Four Thirds kit.

Manual Focus Only: Focus is set entirely by hand, which suits the deliberate, creative shooting style typical of fisheye and specialty lens work.

No Filter Thread: The extreme curvature of the front element prevents standard filter attachment, which is common across fisheye lens designs.

Lens SpecificationsVenus Optics 4mm f/2.8

Venus Optics 4mm f/2.8 full specifications
SpecDetail
Use CasesAstrophotography, Travel, Studio, Fashion, Creative Effects
Lens TypeFisheye
FormatMicro Four Thirds (MFT)
Zoom/PrimePrime
Focal Length4mm
Maximum Aperturef/2.8
Camera SystemMirrorless
Lens MountMicro Four Thirds
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight135g

DescriptionVenus Optics 4mm f/2.8

The Laowa 4mm f/2.8 Fisheye is a prime lens built for the Micro Four Thirds mirrorless camera system, offering a 4mm focal length in the ultra wide-angle fisheye category. With a maximum aperture of f/2.8, it delivers a reasonably bright opening for creative fisheye work. At just 135g, this lens is remarkably light, keeping your mirrorless setup nimble whether you're shooting on location or traveling.

Focus is manual, putting full creative control in the photographer's hands — well-suited to the deliberate framing that fisheye photography often demands. The lens has no filter thread and no image stabilization, so it is best used with steady hands or a stable platform. Designed specifically for the Micro Four Thirds (MFT) lens format and Micro Four Thirds mount, it integrates cleanly with compatible MFT bodies.

For photographers drawn to the fisheye perspective and working within the MFT ecosystem, this compact, lightweight lens is a dedicated and straightforward tool.

ProsVenus Optics 4mm f/2.8

  • Ultralight at just 135g, making it easy to carry alongside other Micro Four Thirds gear
  • f/2.8 maximum aperture offers a reasonably bright opening for a fisheye prime
  • 4mm focal length delivers a distinctive fisheye perspective in the ultra wide-angle range

ConsVenus Optics 4mm f/2.8

  • Manual focus only — no autofocus support for faster or more spontaneous shooting
  • No image stabilization, which can be a limitation in lower light situations
  • No filter thread, preventing use of standard screw-on filters

VideosVenus Optics 4mm f/2.8

King of Crazy Fisheye - 7Artisans 4mm f/2.8 vs Laowa 4mm f/2.8 vs Meike 3.5mm f/2.8 (M43/APSC)Richard Wong

Resources & DownloadsVenus Optics 4mm f/2.8

Manuals & Guides

Frequently Asked QuestionsVenus Optics 4mm f/2.8

What camera system is this lens compatible with?+
The Laowa 4mm f/2.8 Fisheye is designed for the Micro Four Thirds lens mount, making it compatible with MFT mirrorless cameras. It is specified for the Micro Four Thirds (MFT) lens format.
Does this lens support autofocus?+
No, this lens is manual focus only. There is no autofocus mechanism, so all focusing must be done by hand.
Can I attach filters to this lens?+
No, the Laowa 4mm f/2.8 Fisheye does not have a filter thread, so standard screw-on filters cannot be attached directly to the lens.
How heavy is this lens?+
The lens weighs 135g, making it a very lightweight option for Micro Four Thirds shooters who want to keep their kit compact and travel-friendly.
Does this lens have image stabilization?+
No, the specifications list image stabilization as None. Shooters should rely on their camera body's in-body stabilization if available, or use faster shutter speeds to manage camera shake.
What is the maximum aperture of this lens?+
The maximum aperture is f/2.8, which is the widest the lens can open. This is a fixed prime lens with a 4mm focal length and no zoom range.

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