Fujifilm XF 50-140mm f/2.8 R LM OIS WR Specs & DoF

50–140 mm

Focal length

f/2.8

Maximum aperture

32°–12°

Diagonal angle of view (APS-C)

APS-C

Designed for

2.8×

Zoom ratio

Specifications#

Brand: Fujifilm
Model: XF 50-140mm f/2.8 R LM OIS WR
Lens type: Telephoto zoom
Focal length: 50–140 mm
Maximum aperture: f/2.8
Image circle: APS-C (23.5×15.6 mm)
Mount(s): Fujifilm X-mount
Projection: Rectilinear
Stabilisation: Yes (optical)
Autofocus motor: linear motor (LM)
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 50 mm	At 84 mm	At 140 mm	Equiv. aperture (DoF)
APS-C	75 mm · 32°	126 mm · 19°	210 mm · 12°	f/4.2
APS-C (Canon)	80 mm · 30°	134 mm · 18°	224 mm · 11°	f/4.5
Micro Four Thirds	100 mm · 24°	168 mm · 15°	280 mm · 9°	f/5.6

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: 50 mm f/2.8 on aps-c.

Focal	Aperture	at 1 m	at 2 m	at 5 m	at 10 m	Hyperfocal	Blur @2 m
50 mm	f/2.8	4.2 cm	17.1 cm	1.10 m	4.58 m	45.7 m	1.9%
50 mm	f/4	6.0 cm	24.5 cm	1.59 m	6.90 m	32.0 m	1.4%
50 mm	f/8	11.9 cm	49.6 cm	3.43 m	20.3 m	16.0 m	0.7%
84 mm	f/2.8	1.4 cm	5.9 cm	38.2 cm	1.55 m	129 m	5.6%
84 mm	f/4	2.0 cm	8.5 cm	54.7 cm	2.23 m	90.3 m	3.9%
84 mm	f/8	4.1 cm	17.0 cm	1.10 m	4.62 m	45.2 m	2.0%
140 mm	f/2.8	0.5 cm	2.1 cm	13.6 cm	55.1 cm	358 m	16.0%
140 mm	f/4	0.7 cm	3.0 cm	19.4 cm	78.8 cm	251 m	11.2%
140 mm	f/8	1.4 cm	5.9 cm	38.9 cm	1.58 m	125 m	5.6%

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 50 mm	NPF at 50 mm, f/2.8
APS-C	1/200 s	7 s	4 s
APS-C (Canon)	1/250 s	6 s	4 s
Micro Four Thirds	1/250 s	5 s	4 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 XC 50-230mm f/4.5-6.7 OIS f/4.5–6.7
Fujifilm XC 50-230mm f/4.5-6.7 OIS II f/4.5–6.7
Fujifilm XF 55-200mm f/3.5-4.8 R LM OIS f/3.5–4.8
Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR f/4–5.6
Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x f/4–5.6
Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR f/4.5–5.6
Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WR + 1.4× conv. f/4.5–5.6

Frequently asked questions#

Is the Fujifilm XF 50-140mm f/2.8 R LM OIS WR 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 50-140mm f/2.8 R LM OIS WR equivalent to on APS-C?

Its focal length is already the real value for APS-C: 50–140 mm frames like 77–215 mm on full frame.

What is the Fujifilm XF 50-140mm f/2.8 R LM OIS WR good for?

As a telephoto zoom it suits sport, wildlife, events and compressed landscapes.

Sources & licences#

Lensfun lens database — CC BY-SA 3.0