The Professional's Source Since 1973

Ask Our Experts800-606-6969

Hello, Log InAccount & Orders

Video Chat with a Photography Expert - Live

SmallRig 28mm External Optical Viewfinder

Name: SmallRig 28mm External Optical Viewfinder
Brand: SmallRig
SKU: SM5387
Price: 46.99 USD
Availability: InStock
Rating: 2.3 (8 reviews)

BH #SM5387 • MFR #5387

8 reviews

Authorized Dealer

SmallRig 28mm External Optical Viewfinder

Compare

Key Features

28mm Optical Viewfinder
4:3 Aspect Ratio | Attaches via Hot Shoe
98% Light Transmittance
Multi-Brand Compatibility

Designed for use with mirrorless digital cameras, this 28mm External Optical Viewfinder from SmallRig enhances framing and provides a vintage, analog-inspired shooting experience. The viewfinder features a five-lens system with a high light transmittance of 98% and multi-layer coatings for resistance to scratch and wear. It matches a focal length of 28mm and has an aspect ratio of 4:3 for fast, precise framing.

More Details

Top Seller

In Stock

No Store Display

$46.99

Add to Cart

Protect Your Gear

Add a protection plan from $8.99

See Options

Used for $38.95

Ask an Expert

800-606-6969

SmallRig 5387 Overview

Compatible with a plethora of different camera brands and models, the viewfinder is constructed from durable aluminum alloy and premium optical glass. Conveniently attaching to a camera's hot shoe, it delivers exceptional clarity and zero distortion for true-to-life viewing, allowing distraction-free image composition.

Compatible Cameras

FUJIFILM: X-E5, X-E4, X100VI, X100V, X-T5, X-T4, X-H2S, X-T50, X-T30, X-S20, X-M5, and X-Pro3

Sony: FX3, a7C II, a7C, ZV-E10 II, ZV-E10, a6700, and a6600

Canon: EOS R50V, EOS R50, EOS M6 II, EOS M6, EOS M50, and Powershot V1

Nikon: Z30, Z50 II, Zfc, and Zf

Ricoh: GR III

Leica: Q3

SmallRig 5387 Specs

Viewfinder Type	Optical
Frame Lines	28mm
Diopter	No
Optical Design	5 Elements in 1 Groups
Material	Aluminum
Dimensions	1.1 x 1 x 0.8" / 29 x 25.9 x 21 mm
Weight	0.2 oz / 5 g

Packaging Info

Package Weight	0.1 lb
Box Dimensions (LxWxH)	3.4 x 3.4 x 1.7"

SmallRig 5387 Reviews

Useless

By Francois

Rated 1 out of 5

Date: 2026-02-15

Cute but view is completely blurry, completely useless. Returning it.

Solid Eyepiece But Not Focus

By Patrick

Rated 3 out of 5

Date: 2025-11-15

This Is A Well Built Eyepiece. Small And Light However, Mostly Useless For Me As It Has No Diopter Adjustment To Fine Tune Focus.

See any errors on this page?

Does this have a diopter?

Asked by: Craig

Apparently not. And unless there is a way to change this, the viewfinder is essentially unusable.

Answered by: Paul

Date published: 2025-08-18

Will this work with a Sony FX30

Asked by: John

The SmallRig 28mm External Optical Viewfinder will work on the Sony FX30 when using a lens in the 18mm range.

Answered by: Dan W

Date published: 2025-12-31

Is it the field of view for a 28mm mounted to ...

Is it the field of view for a 28mm mounted to APSC or is it a 28mm in 35mm equivalent field of view (so an 18mm lens)

Asked by: Andy

The SmallRig 28mm External Optical Viewfinder provides a view equal to a 28mm lens on a full-frame camera. So, if you are using an APS-C camera, it would match an 18mm lens.

Answered by: Elliot

Date published: 2025-08-18

How can this show the camera's framing?

Asked by: Greg

The SmallRig 28mm External Optical Viewfinder shows the camera's framing by providing a dedicated optical window that approximates the field of view of a 28mm lens on an APS-C sensor camera. It’s a passive optical device, meaning it doesn’t connect to the camera electronically. It doesn’t show exposure, focus, or other settings—just the framing.

Answered by: Samik G

Date published: 2025-11-28

Please update your browser to take advantage of the latest technology securityenhancements to ensure your B&H Shopping experience is as safe as it is enjoyable: