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Lensbaby Trio 28mm f/3.5

The Lensbaby 28mm f/3.5 is a 28mm f/3.5 lens designed for Sony E, Canon EF-M, Fujifilm X mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Lensbaby Trio 28mm f/3.5

Lensbaby Trio 28mm f/3.5

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Lens Overview — Lensbaby 28mm f/3.5

The Lensbaby Trio 28mm f/3.5 is a 28mm prime lens designed for APS-C mirrorless camera systems, offering a maximum aperture of f/3.5 and a rotating front element that houses three distinct optic types for creative, special-effect imagery. Compatible with Sony E, Canon EF-M, and Fujifilm X mounts, this lens is built specifically for mirrorless shooters who want to explore unconventional visual styles without switching systems. At just 136g, the Trio 28mm is a lightweight addition to any kit, making it easy to carry for street photography, portraiture, or experimental work.

The 46mm filter thread allows for standard filter use across all three optic positions. Focus is entirely manual, which suits the deliberate, considered shooting style that creative effect lenses typically demand. There is no image stabilization, so photographers should be mindful of their shooting conditions.

The fixed 28mm focal length on an APS-C sensor makes it a compact, versatile option for everyday creative shooting. This lens is categorized as a Special Effect type, purpose-built for photographers who want to push beyond conventional optics and add a distinct, handcrafted look to their images.

Key Features — Lensbaby 28mm f/3.5

Three-Optic Rotating Wheel: A rotating front element switches between three distinct optic types — Sweet, Velvet, and Twist — each producing a different creative effect in-camera.

28mm APS-C Prime: The fixed 28mm focal length on an APS-C sensor provides a moderate wide angle suited to street photography, portraiture, and everyday creative work.

Sweet Optic Effect: Produces a sharp central focus point that blurs and vignettes toward the edges, creating a distinctive dreamy, soft-focus look.

Velvet Optic Effect: Renders images with a soft, glowing quality at wider apertures that transitions to sharper detail as the lens is stopped down.

Twist Optic Effect: Generates a swirling, painterly bokeh in out-of-focus areas reminiscent of vintage Petzval-style lenses.

Manual Focus Only: Fully manual focus operation suits the deliberate, creative shooting style that special-effect lenses naturally demand.

Lens Specifications — Lensbaby 28mm f/3.5

Lensbaby 28mm f/3.5 full specifications
SpecDetail
Use CasesCreative Effects
Lens TypeSpecial Effect
FormatAPS-C
Zoom/PrimePrime
Focal Length28mm
Maximum Aperturef/3.5
Camera SystemMirrorless
Lens MountSony E, Canon EF-M, Fujifilm X
AutofocusNo
Focus TypeManual Focus
Image StabilizationNone
Filter Thread46mm

Description — Lensbaby 28mm f/3.5

The Lensbaby Trio 28mm f/3.5 is a 28mm prime special effect lens built for APS-C mirrorless camera systems. With a rotating front element housing three distinct optic types, it gives photographers a range of creative looks from a single compact lens. The lens weighs just 136g and features a 46mm filter thread, keeping your existing filter collection in play regardless of which optic position you're using.

Compatible mounts include Sony E, Canon EF-M, and Fujifilm X, covering the most popular APS-C mirrorless platforms. The f/3.5 maximum aperture provides a solid starting point for a variety of lighting conditions. All focusing is handled manually, encouraging a more intentional approach to composition and focus placement that suits the creative, experimental nature of this lens.

With no image stabilization, steady technique or a stable surface is recommended for best results. The Trio 28mm is purpose-built for photographers who want to add a distinct, optic-driven aesthetic to their work.

Pros — Lensbaby 28mm f/3.5

  • ✓Lightweight at just 136g, making it easy to carry for extended shooting sessions
  • ✓Wide mount compatibility covering Sony E, Canon EF-M, and Fujifilm X systems
  • ✓46mm filter thread enables standard filter use with the lens

Cons — Lensbaby 28mm f/3.5

  • ✗Manual focus only — no autofocus support for any compatible mount
  • ✗No image stabilization, which can be challenging in low-light conditions
  • ✗APS-C format only, not compatible with full-frame mirrorless bodies

Reviews — Lensbaby 28mm f/3.5

Videos — Lensbaby 28mm f/3.5

Why I Love Trio 28 (with bonus double effect!) — Lensbaby

Resources & Downloads — Lensbaby 28mm f/3.5

Manuals & Guides

Frequently Asked Questions — Lensbaby 28mm f/3.5

Which camera mounts is the Lensbaby Trio 28mm f/3.5 compatible with?+
The Trio 28mm is available for Sony E, Canon EF-M, and Fujifilm X mounts. All three are mirrorless camera systems, so the lens is not designed for use with DSLR bodies.
Does the Lensbaby Trio 28mm f/3.5 support autofocus?+
No, the Trio 28mm is a fully manual focus lens. There is no autofocus mechanism across any of its compatible mounts, so all focusing must be done by hand.
What sensor format is the Lensbaby Trio 28mm f/3.5 designed for?+
This lens is designed for APS-C format sensors. It is not intended for full-frame mirrorless bodies, even if the mount physically fits.
What filter size does the Lensbaby Trio 28mm f/3.5 use?+
The lens has a 46mm filter thread, which is a fairly compact size. Standard 46mm screw-in filters can be used with this lens.
Does the Lensbaby Trio 28mm f/3.5 have image stabilization?+
No, this lens does not include any form of image stabilization. Photographers should account for this when shooting in lower light or at slower shutter speeds.
How heavy is the Lensbaby Trio 28mm f/3.5?+
The lens weighs 136g, making it a very lightweight option that pairs well with compact mirrorless camera bodies.

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