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Rokinon IO45AF-E 45mm F1.8 Auto Focus Lens Sony E-Mount — main product image
Rokinon

Rokinon IO45AF-E 45mm F1.8 Auto Focus Lens Sony E-Mount

★★★★★4.1 (54 reviews)
f/1.8f/22

Capture Stunning Images with a Compact and Versatile Lens The Rokinon 45mm F1.8 lens is designed for Sony E-mount full-frame and APS-C mirrorless cameras. With its fast f/1.8 aperture and auto-focus capabilities, it excels in low-light conditions and provides beautiful bokeh. The ultra multi-coat...

$279.00*
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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

Capture Stunning Images with a Compact and Versatile Lens

The Rokinon 45mm F1.8 lens is designed for Sony E-mount full-frame and APS-C mirrorless cameras. With its fast f/1.8 aperture and auto-focus capabilities, it excels in low-light conditions and provides beautiful bokeh. The ultra multi-coated optics ensure sharp and clear images with a minimum focusing distance of 1.48 ft.

Specifications:

  • Brand: Rokinon
  • Model: IO45AF-E
  • Focal Length: 45mm
  • Aperture: f/1.8 to f/22
  • Mount: Sony E-Mount
  • Compatibility: Full Frame & APS-C Mirrorless Cameras
  • Optics: Ultra Multi-Coated
  • Minimum Focusing Distance: 1.48 ft
  • Focus: Auto Focus

Key Features

For Sony E-mount full-frame & APS-C Mirrorless cameras

Aperture range: f/1.8 to f/22

Ultra multi-coated Optics with a minimum focusing distance of 1.48 ft

Takes front filter size of 49mm

Constructed of 7 elements in 6 groups with a 9 bladed diaphragm

Specifications

Mount Type
Sony E-Mount
Focal Length
45mm
Aperture Range
f/1.8 to f/22
Optical Construction
7 elements in 6 groups
Diaphragm Blades
9
Minimum Focusing Distance
1.48 ft
Front Filter Size
49mm
Image Stabilization
Digital
Lens Coating
Ultra multi-coated

Pros & Cons

👍 Pros

  • Features a fast f/1.8 aperture, which is beneficial for low-light photography and achieving shallow depth of field
  • Compatible with Sony E-mount full-frame & APS-C Mirrorless cameras, offering broad system integration
  • Constructed with 7 elements in 6 groups, indicating a well-engineered optical design for image quality
  • Includes Ultra multi-coated Optics to help reduce flare and ghosting, improving image clarity
  • The 9-bladed diaphragm contributes to a smooth and aesthetically pleasing bokeh quality

👎 Cons

  • The lens is described as "Telephoto" which might be misleading for a 45mm focal length, typically considered standard or normal on full-frame
  • Digital image stabilization is mentioned, which is likely camera-body based and not an intrinsic lens feature
  • The minimum focusing distance of 1.48 ft (approximately 0.45 meters) may not be ideal for extreme close-up photography
  • A 49mm front filter size is specific and might require purchasing new filters if current ones are of a different size
  • The lack of a stated autofocus motor type or speed prevents a full assessment of its autofocus performance

Frequently Asked Questions

This Rokinon 45mm F1.8 lens is designed for Sony E-mount full-frame and APS-C Mirrorless cameras.
The lens features a wide maximum aperture of f/1.8, which is beneficial for shooting in low light and creating a shallow depth of field.
The minimum focusing distance for the Rokinon IO45AF-E lens is 1.48 feet.
The features list mentions "Digital" image stabilization, which typically refers to in-camera stabilization rather than stabilization built into the lens itself.
This lens accepts a front filter size of 49mm.

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