Samyang

Samyang SYIO85AF-E 85mm F1.4 AF Sony E-Mount Lens

4.5 (378 reviews)
f/1.4

The Samyang 85mm f/1.4 AF delivers sharp, bokeh-rich portraits with weather-sealed construction and silent autofocus for Sony E-mount.

$457.49*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Samyang SYIO85AF-E 85mm f/1.4 AF is a full-frame portrait lens engineered for Sony E-mount cameras, offering the classic 85mm focal length paired with a fast f/1.4 maximum aperture. Its optical formula — 11 elements in 8 groups, including four High Refractive elements and one Extra-low Dispersion element — is designed to maximize sharpness and minimize chromatic aberration across the frame. The 9-blade circular aperture diaphragm produces smooth, rounded bokeh that beautifully separates subjects from their backgrounds, making it an excellent choice for headshots, weddings, and cinematic portrait work.

The Dual Linear Sonic Motor (DLSM) autofocus system delivers fast and nearly silent focusing, with smooth transitions that benefit video shooters as much as photographers. Focus breathing is kept to a minimum, maintaining a consistent field of view as focus shifts. The weather-sealed barrel protects against dust and moisture during outdoor shoots, while the non-rotating 77mm front filter thread keeps polarizers and other filters in position. Ultra Multi-Coated optics reduce flare and ghosting, preserving contrast even when shooting into challenging light. Compatible with both full-frame and APS-C Sony bodies, the lens ships with a removable hood, pouch, and caps, offering a complete portrait solution at a price point well below Sony's own premium options.

Key Features

PORTRAITS WITH SMOOTH DEPTH: Fast f/1.4 aperture and 9-blade iris deliver soft, rounded bokeh with excellent subject separation. Designed for full-frame Sony E-mount cameras, ideal for headshots, weddings, and cinematic portraits.

PREMIUM HIGH‑RESOLUTION OPTICS: Built with 11 elements in 8 groups, including 4 High Refractive and 1 ED lens, for maximum clarity and edge-to-edge sharpness. Optimized for high-performance Sony E cameras.

QUIET DLSM AUTOFOCUS MOTOR: Dual Linear Sonic Motor enables fast, nearly silent autofocus with smooth transitions. Great for professional photography and videography with minimal focus noise or breathing.

DURABLE & WEATHER‑SEALED BUILD: Sealed against dust and moisture, with a non-rotating 77 mm front filter mount. Designed for mirrorless shooters who demand performance in unpredictable shooting environments.

COMPACT, POWERFUL DESIGN: Balances beautifully on full-frame and APS-C Sony mirrorless bodies. Includes removable hood, pouch, caps, and manual for complete lens protection and portability on the go.

Specifications

Brand
Samyang
Model
SYIO85AF-E
Mount
Sony E-Mount (Full-Frame & APS-C)
Focal Length
85mm
Maximum Aperture
f/1.4
Minimum Aperture
f/16
Optical Design
11 Elements in 8 Groups
Special Elements
4 High Refractive, 1 ED
Aperture Blades
9 (Circular)
Autofocus Motor
Dual Linear Sonic Motor (DLSM)
Coatings
Ultra Multi-Coated
Weather Sealing
Yes
Filter Size
77mm (Non-Rotating)

Pros & Cons

👍 Pros

  • Fast f/1.4 maximum aperture with a 9-blade iris produces beautifully smooth, rounded bokeh for portrait work
  • Dual Linear Sonic Motor autofocus is fast and nearly silent, well-suited for both photography and video recording
  • Weather-sealed construction allows confident use in dusty or damp outdoor environments
  • 11 elements in 8 groups with ED and High Refractive glass deliver sharp, high-resolution results across the frame

👎 Cons

  • At 85mm f/1.4 the lens is relatively large and heavy compared to slower 85mm alternatives, adding weight to a mirrorless kit
  • 77mm filter size requires larger, more expensive filters than many comparable portrait lenses
  • Only compatible with Sony E-mount, so it cannot be used on Canon, Nikon, or other mirrorless systems without adaptation
  • Autofocus speed and accuracy may not match Sony's native G Master lenses in fast-action or low-contrast scenarios

Frequently Asked Questions

Yes, it features a Dual Linear Sonic Motor (DLSM) that provides fast, nearly silent autofocus with smooth transitions, fully compatible with Sony's AF system including Eye AF.
Yes, it is sealed against dust and moisture, making it suitable for outdoor portrait sessions and event photography in unpredictable weather conditions.
No, the 77mm front filter mount is non-rotating, so polarizing filters and graduated ND filters stay in position during focus changes.
Yes, it mounts on both full-frame and APS-C Sony E-mount bodies. On APS-C, the effective field of view is equivalent to approximately 127.5mm, making it a tight portrait and close-up lens.
The lens comes with a removable lens hood, protective pouch, front and rear caps, and a user manual.