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Irix 45mm F1.4

Canon EF

Irix 45mm F1.4

Focal length
45 mm
Aperture
f/1.4
Weight
925 g
Filter diameter
77 mm
Min. focus distance
40 cm
Length
87 mm
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At a Glance

The Irix 45mm F1.4 is a standard prime for Canon EF and full frame with manual focus only. Its f/1.4 maximum aperture allows short shutter times in low light and very shallow depth of field. It is weather sealed, and its length stays fixed while focusing. At 925 g it is heavy. Everyday shooting, street work and low light are its territory.

Good for

  • Everyday
  • Street
  • Low light

Worth knowing

  • 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
45 mm
Max. focal length
45 mm
Max. aperture (min. zoom)
f/1.4
Max. aperture (max. zoom)
f/1.4
Min. aperture
f/22
Elements
11
Groups
9
Weight
925 g (2.04 lb)
Filter diameter
77 mm
Min. focus distance
40 cm (15.75 in)
Length
87 mm (3.43 in)
Diameter
105 mm (4.13 in)
Released
April 2020

Manufacturer data: irixlens.com, irixlens.com

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 Irix 45mm F1.4 fit?

The Irix 45mm F1.4 is a full-frame lens for Canon EF cameras. On full-frame bodies it uses the whole sensor; on APS-C Canon EF cameras its field of view equals 72 mm in full-frame terms.

Canon EF cameras

Full frame:
Canon EOS-1D X Mark III,Canon EOS 6D Mark II,Canon EOS-1D X Mark II,Canon EOS 5D Mark IV,Canon EOS 5Ds,Canon EOS 5Ds R,Canon EOS 5D Mark III,Canon EOS 6D,Canon EOS-1D C,Canon EOS-1D X,Canon EOS 5D Mark II
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.

Irix 45mm F1.4 compared

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

LensIrix 45mm F1.4Samyang / Rokinon 50mm F1.4 AS UMCSamyang 50mm F1.4 AS UMCZeiss Milvus 50mm F1.4
Focal length45 mm50 mm50 mm50 mm
Max. aperturef/1.4f/1.4f/1.4f/1.4
Weight925 g535 g535 g922 g
Filter diameter77 mm77 mm77 mm67 mm
Min. focus distance40 cm45 cm45 cm45 cm
Length87 mm75 mm74.7 mm97.5 mm
Autofocusnononono
Image stabilizationnononono
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Irix 45mm F1.4: FAQ

Does the Irix 45mm F1.4 have autofocus?

No, the Irix 45mm F1.4 has no autofocus; you focus it manually.

Does the Irix 45mm F1.4 have image stabilization?

No, the Irix 45mm F1.4 has no stabilization of its own. On cameras with in-body image stabilization (IBIS) the image is still stabilized.

How much does the Irix 45mm F1.4 weigh?

The Irix 45mm F1.4 weighs 925 g. It is 87 mm long with a diameter of 105 mm.

What filter size does the Irix 45mm F1.4 use?

The Irix 45mm F1.4 takes 77 mm screw-in filters.

How close can the Irix 45mm F1.4 focus?

The minimum focus distance of the Irix 45mm F1.4 is 40 cm, measured from the sensor plane.

Is the Irix 45mm F1.4 a full-frame lens?

Yes, the Irix 45mm F1.4 covers full frame. On APS-C cameras its field of view equals 72 mm in full-frame terms.

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