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Kipon 40mm f/0.85

The Kipon 40mm f/0.85 is a 40mm f/0.85 lens designed for Sony E mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Kipon 40mm f/0.85

Kipon 40mm f/0.85

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Lens Overview — Kipon 40mm f/0.85

The Kipon 40mm f/0.85 is a manual-focus prime lens designed for Sony E-mount mirrorless cameras with APS-C sensors. Its standout feature is the extraordinary maximum aperture of f/0.85, which places it among the fastest lenses available for mirrorless systems. This level of light-gathering capability opens up significant creative possibilities, particularly in challenging low-light environments where maintaining a usable shutter speed is critical.

Because focus is entirely manual, the shooter has full, deliberate control over where sharpness falls — a trait that many portrait, street, and creative photographers actively seek out. The lens covers the APS-C format, making it well-matched to the sensor size found in many Sony E-mount bodies. With a 40mm focal length, it sits in standard prime territory, offering a field of view that translates naturally for a wide range of shooting scenarios.

The filter thread measures 67mm, accommodating a broad selection of standard screw-in filters. At 1,150g, this is a substantial piece of glass, which reflects the optical construction required to achieve such a wide maximum aperture. There is no image stabilization, so users will need to account for that when shooting handheld in low light.

Key Features — Kipon 40mm f/0.85

f/0.85 Maximum Aperture: One of the fastest apertures available on any mirrorless lens, allowing shooting in extremely low light while producing intense background separation.

40mm Standard Prime: Offers a natural field of view on APS-C sensors, suited to portrait, street, and everyday photography without distortion extremes.

Manual Focus Only: A fully manual focus ring gives the shooter direct, deliberate control over focus placement — particularly useful for creative and cinematic work.

Sony E-Mount Native Fit: Designed specifically for Sony E-mount mirrorless bodies, requiring no adapter for a direct, secure lens-to-camera connection.

APS-C Format Coverage: Image circle is matched to APS-C sensors, making it a natural pairing with Sony crop-sensor bodies like the a6000 series.

67mm Filter Thread: Standard 67mm front thread size is widely compatible with screw-in ND, polarizing, and other common filter accessories.

Lens Specifications — Kipon 40mm f/0.85

Kipon 40mm f/0.85 full specifications
SpecDetail
Use CasesStudio
Lens TypePrime
FormatAPS-C
Zoom/PrimePrime
Focal Length40mm
Maximum Aperturef/0.85
Camera SystemMirrorless
Lens MountSony E
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread67mm

Description — Kipon 40mm f/0.85

The Kipon 40mm f/0.85 is a manual-focus prime lens built for Sony E-mount mirrorless cameras with APS-C format sensors. Its defining specification is a maximum aperture of f/0.85, an exceptionally wide opening that allows an impressive amount of light to reach the sensor and enables extremely shallow depth of field for strong subject separation. The 40mm focal length places it in standard prime range, useful across a broad variety of photographic applications.

Focusing is entirely manual, giving the photographer precise, deliberate control — there is no autofocus of any kind. The lens accepts 67mm screw-in filters, making accessory use straightforward. At 1,150g, it is a heavy lens by mirrorless standards, a reflection of the optical demands involved in achieving such a wide aperture. Image stabilization is not present, so shooting technique matters, though the wide aperture does help offset the need for slower shutter speeds in dim conditions.

For photographers who value maximum light-gathering ability and hands-on manual control in a Sony E-mount APS-C system, this lens presents a compelling and technically ambitious option.

Pros — Kipon 40mm f/0.85

  • ✓Exceptional maximum aperture of f/0.85 provides extraordinary light-gathering capability
  • ✓40mm standard focal length is versatile across portrait, street, and everyday shooting
  • ✓67mm filter thread size is widely compatible with common filter accessories

Cons — Kipon 40mm f/0.85

  • ✗Manual focus only — no autofocus support, which may slow down fast-moving subject work
  • ✗No image stabilization, requiring careful technique at slower shutter speeds
  • ✗Weight of 1,150g is notably heavy for a mirrorless prime lens, affecting portability and balance

Videos — Kipon 40mm f/0.85

Pink 40mm f/0.85 Lens BOKEH Machine! — Kai W

Resources & Downloads — Kipon 40mm f/0.85

Manuals & Guides

Frequently Asked Questions — Kipon 40mm f/0.85

Does the Kipon 40mm f/0.85 support autofocus?+
No. This lens is strictly manual focus — there is no autofocus mechanism of any kind. Shooters will need to focus by hand, which suits deliberate, controlled shooting styles but is not ideal for fast action or unpredictable subjects.
What camera mount does this lens use?+
The lens is built for the Sony E mount, making it compatible with Sony E-mount mirrorless cameras. It is designed specifically for APS-C format sensors within that system.
What filter size does the Kipon 40mm f/0.85 accept?+
The lens has a 67mm filter thread. This is a common size, so a wide range of screw-in filters — including ND, polarizer, and UV filters — are readily available to fit it.
How heavy is this lens, and does that affect usability?+
The lens weighs 1,150g, which is quite substantial for a mirrorless prime. Users should be prepared for the added weight when shooting handheld for extended periods, and it may affect the balance of lighter Sony E-mount bodies.
Does the lens include image stabilization?+
No, the Kipon 40mm f/0.85 has no image stabilization. Given the very wide f/0.85 aperture, low-light shooting can still be managed by using a faster shutter speed, but stabilization is not available from the lens itself.

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