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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 DetailsSee any errors on this page?
Does this have a diopter?
Does this have a diopter?
Apparently not. And unless there is a way to change this, the viewfinder is essentially unusable.
Date published: 2025-08-18
Will this work with a Sony FX30
Will this work with a Sony FX30
The SmallRig 28mm External Optical Viewfinder will work on the Sony FX30 when using a lens in the 18mm range.
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)
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.
Date published: 2025-08-18
How can this show the camera's framing?
How can this show the camera's framing?
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.
Date published: 2025-11-28