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AstrHori 28mm f/13 Canon RF Macro Probe Lens

The AstrHori 28mm f/13 RF is a 28mm f/13 lens designed for Canon RF mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

AstrHori 28mm f/13 Canon RF Macro Probe Lens

AstrHori 28mm f/13 Canon RF Macro Probe Lens

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Lens Overview — AstrHori 28mm f/13 RF

The AstrHori 28mm f/13 Macro Probe Lens is a manual-focus prime lens built for the Canon RF mirrorless mount, designed to cover full-frame sensors. With a fixed focal length of 28mm and a maximum aperture of f/13, this lens is purpose-built for macro and extreme close-up work rather than general-purpose shooting. Its fixed f/13 aperture is characteristic of probe-style macro lenses, where the elongated barrel design naturally limits the amount of light reaching the sensor while enabling the lens to access tight, confined spaces and get remarkably close to subjects.

The lens is classified in the standard focal length range and operates entirely on manual focus, giving photographers precise control over their point of focus during close-up work. There is no autofocus or image stabilization, which is typical for specialized macro probe designs where careful, deliberate technique is expected. Weighing 698g, the lens has a substantial but manageable build for a specialized tool of this type.

It is compatible with the Canon RF mirrorless camera system on full-frame bodies, making it a unique creative option for photographers who want to explore extreme close-up perspectives unavailable with conventional macro lenses.

Key Features — AstrHori 28mm f/13 RF

28mm Macro Probe Design: The elongated probe barrel allows the lens to access confined spaces and get extremely close to subjects from angles impossible with conventional macro lenses.

Native Canon RF Mount: Directly compatible with Canon RF mirrorless cameras without adapters, ensuring full mechanical and optical performance on full-frame RF bodies.

Full-Frame Coverage: Image circle covers full-frame sensors with no crop factor, delivering the full 28mm field of view on bodies like the EOS R5 and R6.

Fixed f/13 Aperture: The fixed maximum aperture is inherent to the probe barrel construction, which restricts light while enabling the slim, elongated form needed for close-access shooting.

Manual Focus Only: A dedicated manual focus ring gives photographers precise, deliberate control over focus placement during close-up and macro work.

698g Solid Build: At 698g, the lens has a substantial construction suited to careful, tripod-assisted or handheld macro setups.

Lens Specifications — AstrHori 28mm f/13 RF

AstrHori 28mm f/13 RF full specifications
SpecDetail
Use CasesMacro, Documentary, Studio
Lens TypeMacro
FormatFull Frame
Zoom/PrimePrime
Focal Length28mm
Maximum Aperturef/13
Camera SystemMirrorless
Lens MountCanon RF
AutofocusNo
Focus TypeManual
Image StabilizationNone
Weight698g

Description — AstrHori 28mm f/13 RF

The AstrHori 28mm f/13 Macro Probe Lens is a specialized prime lens designed for the Canon RF mirrorless mount, delivering full-frame coverage for photographers pursuing extreme close-up and macro imaging. With a fixed focal length of 28mm and a maximum aperture of f/13, this lens is optimized for macro-type work where its probe-style form factor allows access to subjects and environments that conventional lenses simply cannot reach. The lens operates with manual focus only — there is no autofocus — putting full creative control in the photographer's hands for precise, deliberate framing. No image stabilization is included, so a steady hand or solid support system is recommended.

Weighing 698g, it has a solid presence on the camera. There is no filter thread, so standard screw-on accessories cannot be attached directly. This lens fits the Canon RF mirrorless camera system and is purpose-built for photographers who need to explore unique macro perspectives.

Pros — AstrHori 28mm f/13 RF

  • ✓Native Canon RF mount ensures direct compatibility with Canon RF mirrorless full-frame cameras
  • ✓Full-frame coverage (lensFormat: Full Frame) means no crop factor concerns on full-frame RF bodies
  • ✓Fixed 28mm focal length provides a defined, predictable field of view for macro work

Cons — AstrHori 28mm f/13 RF

  • ✗Maximum aperture of f/13 is very restrictive, limiting light intake and requiring supplemental lighting in many situations
  • ✗No autofocus (autoFocus: false) means slower operation and makes spontaneous shooting difficult
  • ✗No image stabilization (imageStabilization: None) demands careful technique or additional support at close focusing distances

Reviews — AstrHori 28mm f/13 RF

Videos — AstrHori 28mm f/13 RF

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Frequently Asked Questions — AstrHori 28mm f/13 RF

Which camera mount does this lens fit?+
The AstrHori 28mm f/13 Macro Probe Lens is built for the Canon RF mount, making it compatible with Canon RF mirrorless cameras. It is designed to cover full-frame sensors.
Does this lens have autofocus?+
No. The lens is manual focus only — the autoFocus specification is listed as false. Photographers must focus manually, which is well-suited to the deliberate, precise nature of macro photography.
Is image stabilization included?+
No, the lens does not include any optical image stabilization, as the imageStabilization field is listed as None. Photographers should use a stable support system or rely on in-body stabilization if their camera body offers it.
Can I attach filters to this lens?+
No. The filterThreadSize is listed as null, meaning there is no standard filter thread on this lens. Alternative filter mounting solutions would need to be considered if filtration is required.
How heavy is the AstrHori 28mm f/13 Macro Probe Lens?+
The lens weighs 698g according to the specifications. This is a meaningful but manageable weight for a specialized macro probe lens, though it should be factored into your overall kit weight.
Is this lens suitable for full-frame cameras?+
Yes. The lensFormat specification confirms this lens is designed for full-frame coverage, making it appropriate for use on full-frame Canon RF mirrorless camera bodies.

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