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Yasuhara Momo 100 Soft Focus

The Yasuhara 100 Soft Focus is a 43mm f/6.4 lens designed for Sony E mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Yasuhara Momo 100 Soft Focus

Yasuhara Momo 100 Soft Focus

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Lens Overview — Yasuhara 100 Soft Focus

The Yasuhara Momo 100 Soft Focus is a 43mm prime lens designed for APS-C mirrorless cameras with a Sony E mount. Built as a specialty optic in the 'Special Effect' category, it delivers a distinct soft focus rendering that sets it apart from conventional sharp-imaging lenses. With a maximum aperture of f/6.4 and fully manual focus operation, this lens is aimed at photographers who want deliberate creative control over their imagery rather than clinical precision.

Weighing just 145g, the Momo 100 is a compact and lightweight option that won't burden a mirrorless kit, making it easy to carry for portrait sessions, street work, or any situation where a softer, more ethereal aesthetic is desired. The 37mm filter thread opens up compatibility with a range of compact filter options. Image stabilization is not included, which is worth considering given the manual-only focus system.

As a standard focal length prime at 43mm on an APS-C sensor, it occupies a versatile position in the lineup. This lens suits photographers drawn to artistic, mood-driven imagery who prioritize a unique visual character over technical sharpness metrics.

Key Features — Yasuhara 100 Soft Focus

43mm Soft Focus Prime: A fixed focal length lens purpose-built to render images with a diffused, ethereal quality rather than clinical sharpness.

Sony E Mount, APS-C: Designed specifically for APS-C mirrorless cameras with Sony E mount, fitting bodies like the Sony a6000 series natively.

f/6.4 Maximum Aperture: A fixed maximum aperture of f/6.4 that contributes to the lens's characteristic soft rendering across the frame.

Manual Focus Only: Fully manual focus operation gives photographers deliberate, hands-on control over focus placement and soft focus effect intensity.

Compact 145g Build: At just 145g, the lens adds minimal weight to a mirrorless kit, making it practical for portrait or street sessions.

37mm Filter Thread: The small 37mm filter thread is compatible with a wide range of compact filters for additional creative effects.

Lens Specifications — Yasuhara 100 Soft Focus

Yasuhara 100 Soft Focus full specifications
SpecDetail
Use CasesFashion, Studio
Lens TypeSpecial Effect
FormatAPS-C
Zoom/PrimePrime
Focal Length43mm
Maximum Aperturef/6.4
Camera SystemMirrorless
Lens MountSony E
AutofocusNo
Focus TypeManual Focus
Image StabilizationNone
Filter Thread37mm

Description — Yasuhara 100 Soft Focus

The Yasuhara Momo 100 Soft Focus is a 43mm prime lens built for APS-C mirrorless cameras on the Sony E mount. Classified as a Special Effect lens, it is designed to produce soft, dreamy imagery rather than conventional clinical sharpness — making it a deliberate creative tool for photographers seeking a distinctive visual style. With a maximum aperture of f/6.4 and manual focus only operation, the Momo 100 demands a thoughtful, hands-on approach to shooting.

Weighing only 145g, it is remarkably portable and unobtrusive, fitting naturally into a compact mirrorless kit. The 37mm filter thread adds flexibility for those who want to experiment with additional optical effects. There is no image stabilization, so steady technique or in-body stabilization is recommended.

As a prime lens at a standard focal length range, the Momo 100 is a fixed-perspective optic suited to portrait, lifestyle, and artistic photography where mood takes priority over technical precision.

Pros — Yasuhara 100 Soft Focus

  • ✓Lightweight at just 145g, easy to carry for extended shoots
  • ✓Sony E mount compatibility makes it a direct fit for APS-C mirrorless systems
  • ✓43mm focal length sits in the standard/versatile range on APS-C

Cons — Yasuhara 100 Soft Focus

  • ✗Maximum aperture of f/6.4 is relatively slow, limiting performance in lower light
  • ✗Manual focus only — no autofocus support for faster-paced shooting
  • ✗No image stabilization, which can be challenging when shooting handheld

Reviews — Yasuhara 100 Soft Focus

Videos — Yasuhara 100 Soft Focus

The Pipe Dream Soft-focus lens — Randy Snook

Resources & Downloads — Yasuhara 100 Soft Focus

Manuals & Guides

Frequently Asked Questions — Yasuhara 100 Soft Focus

What camera mount does the Yasuhara Momo 100 Soft Focus use?+
The Momo 100 is available in Sony E mount, making it compatible with Sony APS-C mirrorless cameras. It is designed specifically for the mirrorless camera system and APS-C sensor format.
Does this lens support autofocus?+
No, the Yasuhara Momo 100 Soft Focus is a manual focus only lens. There is no autofocus mechanism, so focusing must be done entirely by hand, giving the photographer full control over the soft focus effect.
What is the maximum aperture of the Momo 100?+
The lens has a maximum aperture of f/6.4. This is a relatively modest aperture, so it is best suited for use in well-lit conditions or as a creative tool where light gathering is not the primary concern.
What filter size does the Yasuhara Momo 100 accept?+
The Momo 100 accepts 37mm filters. This is a small, compact filter thread size that keeps the overall lens footprint minimal and lightweight.
Does the lens include image stabilization?+
No, the Yasuhara Momo 100 Soft Focus does not include image stabilization. Photographers should rely on body-based stabilization if available, or use steady handheld technique.
How heavy is the Yasuhara Momo 100 Soft Focus?+
The lens weighs 145g, making it a very lightweight option for mirrorless shooters. Its compact weight makes it practical for travel or discreet shooting situations.

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