Telephoto zoom · APS-C

Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x

The Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x is a APS-C zoom lens (70–300 mm, f/4–5.6) for Fujifilm X-mount. It belongs to the telephoto zoom class — ideal for sport, wildlife, events and compressed landscapes.

70–300 mmf/4–5.6Fujifilm X-mount
70–300 mm
Focal length
f/4–5.6
Maximum aperture
23°–5°
Diagonal angle of view (APS-C)
APS-C
Designed for
4.3×
Zoom ratio

Specifications#

Model
XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x
Lens type
Telephoto zoom
Focal length
70–300 mm
Maximum aperture
f/4–5.6
Image circle
APS-C (23.5×15.6 mm)
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 formatAt 70 mmAt 145 mmAt 300 mmEquiv. aperture (DoF)
APS-C105 mm · 23°218 mm · 11°450 mm · 5°f/6.0
APS-C (Canon)112 mm · 22°232 mm · 11°480 mm · 5°f/6.4
Micro Four Thirds140 mm · 18°290 mm · 9°600 mm · 4°f/8.0

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: 85 mm f/4 on aps-c.

FocalApertureat 1 mat 2 mat 5 mat 10 mHyperfocalBlur @2 m
70 mmf/43.0 cm12.3 cm79.2 cm3.25 m62.7 m2.7%
70 mmf/85.9 cm24.7 cm1.61 m7.05 m31.4 m1.4%
145 mmf/40.6 cm2.8 cm18.1 cm73.4 cm269 m12.1%
145 mmf/81.3 cm5.5 cm36.2 cm1.47 m135 m6.0%
300 mmf/40.1 cm0.6 cm4.1 cm16.9 cm1.2 km56.3%
300 mmf/80.2 cm1.2 cm8.2 cm33.7 cm576 m28.2%

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).

BodyMin. handheld shutter (longest focal)500 rule at 70 mmNPF at 70 mm, f/4
APS-C1/500 s5 s4 s
APS-C (Canon)1/500 s4 s4 s
Micro Four Thirds1/640 s4 s3 s

Adapt it to other systems#

Frequently asked questions#

Is the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x 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 70-300mm f/4-5.6 R LM OIS WR + 1.4x equivalent to on APS-C?

Its focal length is already the real value for APS-C: 70–300 mm frames like 107–460 mm on full frame.

What is the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR + 1.4x good for?

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

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources