Rokinon

Rokinon RK21M-E 21mm f1.4 Wide Angle Lens Sony

Name: Rokinon RK21M-E 21mm f1.4 Wide Angle Lens Sony
Brand: Rokinon
SKU: RK21M-E

Capture Stunning Wide-Angle ShotsIntroducing the Rokinon 21mm F1.4 lens, perfect for mirrorless cameras. Delivering exceptional image quality with a wide field of view, a bright F1.4 aperture, and advanced optics, this lens is ideal for landscapes, astrophotography, and low-light shooting. Moun...

$317.00*

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Overview

Capture Stunning Wide-Angle Shots

Introducing the Rokinon 21mm F1.4 lens, perfect for mirrorless cameras. Delivering exceptional image quality with a wide field of view, a bright F1.4 aperture, and advanced optics, this lens is ideal for landscapes, astrophotography, and low-light shooting.

Mount Compatibility: Sony Alpha E mount, Fuji X mount, Micro Four Thirds, Canon M mount
Aperture: F1.4
Optical Construction: 3 Aspherical Lens Elements, 1 ED Glass Element
Focus Ring: Smooth Focus Ring
Size: Compact
Includes: Detachable Lens Hood

Key Features

Lens features Rokinon Ultra Multi-Coated (UMC) optical glass for sharp, clear images.Minimum focusing distance: 0.98f (0.3m)

Ultra wide 21mm fixed focal length with aperture range f1.4-f22

Constructed of 8 lens elements in 7 lens groups

Petal Shaped Lens Hood

Specifications

Focal Length

21mm (fixed)

Maximum Aperture

f/1.4

Minimum Aperture

f/22

Optical Construction

8 lens elements in 7 lens groups

Lens Coating

Rokinon Ultra Multi-Coated (UMC)

Mount Type

Sony E-Mount

Minimum Focusing Distance

0.98f (0.3m)

Included Accessory

Petal Shaped Lens Hood

Frequently Asked Questions

What is the focal length of the Rokinon RK21M-E 21mm f1.4 Wide Angle Lens?

This Rokinon lens has an ultra-wide fixed focal length of 21mm, which is suitable for capturing expansive scenes.

What is the widest aperture available on this lens?

The lens features a wide f/1.4 maximum aperture, making it excellent for low-light photography and for achieving a shallow depth of field.

Does this lens include special optical coatings?

Yes, it utilizes Rokinon Ultra Multi-Coated (UMC) optical glass, designed to deliver sharp, clear images by minimizing internal reflections and glare.

What is the minimum focusing distance for this lens?

The minimum focusing distance for this lens is 0.98 feet (0.3 meters), allowing you to get relatively close to your subject.

What type of camera mount is this lens compatible with?

This Rokinon RK21M-E lens is specifically designed for Sony E-Mount cameras, ensuring a proper fit for compatible mirrorless systems.

Strengths & Trade-offs

👍 Pros

Utilizes Rokinon Ultra Multi-Coated (UMC) optical glass, ensuring sharp and clear images by reducing flare and ghosting.
Features an ultra-wide 21mm fixed focal length, making it suitable for capturing broad landscapes, interiors, and architectural shots.
Offers a fast f/1.4 maximum aperture, which is excellent for shooting in low-light conditions and achieving creative depth of field.
The wide aperture range extends to f/22, providing flexibility for exposure control across various lighting scenarios.
Constructed with 8 lens elements in 7 lens groups, indicating a well-engineered optical design for image quality.
Includes a petal-shaped lens hood, which helps to minimize unwanted light and provides an element of physical protection to the lens.
Has a minimum focusing distance of 0.98f (0.3m), allowing for close-up shots with background separation.

👎 Cons

As a fixed focal length lens, it lacks the versatility of a zoom lens, requiring the photographer to physically move to recompose.
The 21mm focal length, while ultra-wide, might introduce some perspective distortion that is not desired for all subjects.
Specific details regarding the lens's weight or physical dimensions are not provided, which could impact portability considerations.
The features do not explicitly mention if the lens has autofocus capabilities, implying it may be a manual focus lens.
The lens is specified for Sony E-Mount, limiting its compatibility to that specific camera system.