Fujifilm XF 23mm f/1.4 R Specs, Equivalents & Depth of Field

23 mm

Focal length

f/1.4

Maximum aperture

63°

Diagonal angle of view (APS-C)

APS-C

Designed for

Specifications#

Brand: Fujifilm
Model: XF 23mm f/1.4 R
Lens type: Wide-angle prime
Focal length: 23 mm
Maximum aperture: f/1.4
Image circle: APS-C (23.5×15.6 mm)
Mount(s): Fujifilm X-mount
Projection: Rectilinear
Lensfun correction profile: Yes — distortion/vignetting/TCA

Equivalent focal length on different cameras#

Field of view and depth-of-field equivalence when this lens is used on bodies with different sensor sizes (natively or via an adapter).

Camera format	At 23 mm	Equiv. aperture (DoF)
APS-C	34 mm · 63°	f/2.1
APS-C (Canon)	37 mm · 60°	f/2.2
Micro Four Thirds	46 mm · 50°	f/2.8

Depth of field & background blur#

Computed on its native APS-C format (CoC 20 µm). “Blur @2 m” is the size of an out-of-focus point at infinity, as a percentage of frame width, with the subject at 2 m — a simple bokeh index. Full table: 24 mm f/1.4 on aps-c.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
23 mm	f/1.4	10.1 cm	41.4 cm	2.76 m	14.1 m	19.3 m	0.8%
23 mm	f/4	29.5 cm	1.28 m	16.1 m	∞	6.79 m	0.3%
23 mm	f/8	63.1 cm	3.55 m	∞	∞	3.40 m	0.1%

Handheld & night-sky limits#

NPF assumes typical 20–24 MP sensors (≈6 µm pixels on full frame, ≈3.9 µm on APS-C, ≈3.3 µm on Micro Four Thirds).

Body	Min. handheld shutter (longest focal)	500 rule at 23 mm	NPF at 23 mm, f/1.4
APS-C	1/30 s	14 s	7 s
APS-C (Canon)	1/40 s	14 s	7 s
Micro Four Thirds	1/50 s	11 s	6 s

Compatible cameras#

Bodies in our database with a native Fujifilm X-mount mount. Full-frame bodies switch to an APS-C crop with this lens.

Adapt it to other systems#

Nikon Z Pentax Q

Similar lenses#

Fujifilm XF 23mm f/1.4 R LM WR f/1.4
Fujifilm XF 23mm f/2 R WR f/2
Viltrox AF 23mm F1.4 XF/Z/L f/1.4
Samyang 24mm f/1.4 ED AS IF UMC f/1.4
Viltrox 25mm F1.7 E f/1.7
Fujifilm XF 18mm f/2 R f/2
Fujifilm XF 16mm f/1.4 R WR f/1.4
Fujifilm XF 16mm f/2.8 R WR f/2.8
Sigma 16mm f/1.4 DC DN Contemporary f/1.4
Fujifilm XF 14mm f/2.8 R f/2.8

Frequently asked questions#

Is the Fujifilm XF 23mm f/1.4 R full frame?

No — it is designed for APS-C sensors. On a full-frame body it vignettes or triggers crop mode.

What is the Fujifilm XF 23mm f/1.4 R equivalent to on APS-C?

Its focal length is already the real value for APS-C: 23 mm frames like 35 mm on full frame.

What is the Fujifilm XF 23mm f/1.4 R good for?

As a wide-angle prime it suits street, environmental portraits, landscapes and astro.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0