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AstrHori 18mm f/8 (APS-C) 90° Macro Probe

Canon EF

AstrHori 18mm f/8 (APS-C) 90° Macro Probe

Focal length
18 mm
Aperture
f/8
Weight
760 g
Filter diameter
–
Min. focus distance
47 cm
Length
470 mm

At a Glance

This 18 mm wide-angle probe is built for APS-C cameras with Canon EF mount, where it corresponds to 29 mm on full frame. It images up to 2:1 and focuses from 47 cm. A built-in LED ring light, a waterproof detachable front section, an aperture ring and cine gears are included. Focus is set manually. Typical uses are macro, product shots and video.

Good for

  • Macro
  • Product
  • Video

Worth knowing

  • Designed for APS-C: only usable on EOS cameras with an APS-C sensor.
  • No autofocus: focusing is manual only.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

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Min. focal length
18 mm
Max. focal length
18 mm
Max. aperture (min. zoom)
f/8
Max. aperture (max. zoom)
f/8
Min. aperture
f/28
Elements
23
Groups
17
Weight
760 g (1.68 lb)
Filter diameter
–
Min. focus distance
47 cm (18.5 in)
Max. magnification
2:1 (2×)
Length
470 mm (18.5 in)
Diameter
30 mm (1.18 in)

Manufacturer data: astrhori.cn

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the AstrHori 18mm f/8 (APS-C) 90° Macro Probe fit?

The AstrHori 18mm f/8 (APS-C) 90° Macro Probe is made for Canon APS-C cameras, where its field of view equals 29 mm in full-frame terms. It is not meant for full-frame EOS bodies: EF-S lenses do not mount on them at all, and third-party APS-C lenses vignette heavily.

Canon EF cameras

APS-C:
Canon EOS 850D (Rebel T8i),Canon EOS 90D,Canon EOS 250D (Rebel SL3),Canon EOS 4000D (3000D, Rebel T100),Canon EOS 2000D (1500D, Rebel T7),Canon EOS 800D (Rebel T7i),Canon EOS 77D,Canon EOS 200D (Rebel SL2),Canon EOS 80D,Canon EOS 1300D (Rebel T6),Canon EOS 750D (Rebel T6i),Canon EOS 760D (Rebel T6s),Canon EOS 7D Mark II,Canon EOS 1200D (Rebel T5),Canon EOS 70D,Canon EOS 700D (Rebel T5i),Canon EOS 100D (Rebel SL1),Canon EOS 650D (Rebel T4i),Canon EOS 60Da,Canon EOS 600D (Rebel T3i),Canon EOS 1100D (Rebel T3),Canon EOS 550D (Rebel T2i),Canon EOS 60D,Canon EOS 7D,Canon EOS 500D (Rebel T1i),Canon EOS 50D,Canon EOS 450D (Rebel XSi),Canon EOS 1000D (Rebel XS)

With the Canon Mount Adapter EF-EOS R the lens can also be used on Canon RF cameras.

With the Canon Mount Adapter EF-EOS M the lens can also be used on Canon EF-M cameras.

AstrHori 18mm f/8 (APS-C) 90° Macro Probe compared

Key specs side by side with the most similar Canon EF lenses.

LensAstrHori 18mm f/8 (APS-C) 90° Macro ProbeAstrHori 18mm f/8 Macro ProbeZeiss Distagon T* 3,5/18Canon TS-E 17mm f/4L
Focal length18 mm18 mm18 mm17 mm
Max. aperturef/8f/8f/3.5f/4
Weight760 g698 g470 g820 g
Filter diameter––82 mm–
Min. focus distance47 cm47 cm30 cm25 cm
Length470 mm458 mm84 mm106.9 mm
Autofocusnononono
Image stabilizationnononono
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AstrHori 18mm f/8 (APS-C) 90° Macro Probe: FAQ

Does the AstrHori 18mm f/8 (APS-C) 90° Macro Probe have autofocus?

No, the AstrHori 18mm f/8 (APS-C) 90° Macro Probe has no autofocus; you focus it manually.

Does the AstrHori 18mm f/8 (APS-C) 90° Macro Probe have image stabilization?

No, the AstrHori 18mm f/8 (APS-C) 90° Macro Probe has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the AstrHori 18mm f/8 (APS-C) 90° Macro Probe weigh?

The AstrHori 18mm f/8 (APS-C) 90° Macro Probe weighs 760 g. It is 470 mm long with a diameter of 30 mm.

How close can the AstrHori 18mm f/8 (APS-C) 90° Macro Probe focus?

The minimum focus distance of the AstrHori 18mm f/8 (APS-C) 90° Macro Probe is 47 cm, measured from the sensor plane.

Is the AstrHori 18mm f/8 (APS-C) 90° Macro Probe a full-frame lens?

No, the AstrHori 18mm f/8 (APS-C) 90° Macro Probe is an APS-C lens. On APS-C cameras its field of view equals 29 mm in full-frame terms.

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