Specifications#
- Brand
- Fujifilm
- Model
- X-T4
- Camera type
- Mirrorless
- Released
- 2020-04-28
- Lens mount
- Fujifilm X-mount
- Sensor size
- 23.8 × 15.6 mm (APS-C)
- Crop factor
- 1.52×
- Resolution
- 26.1 MP (6,240 × 4,160 px)
- Fastest shutter
- 1/8,000 s
- Continuous shooting
- 30 fps
- Max video resolution
- 4K
- Weight
- 607 g (21.4 oz)
- Sensor
- APS-C
- Sensor type
- X-Trans CMOS 4
- Storage
- Dual Slot SD, SDHC, SDXC ; V90, UHS-II, UHS-I
- Viewfinder
- EVF viewfinder with eye sensor
- Focus
- Intelligent Hybrid TTL contrast detection / Phase detection
- AF points / area
- 91 focus point
- Metering
- Through-the-lens
- Exposure modes
- TTL 256-zone metering
- Shutter
- Focal Plane Shutter
- Flash
- External Flash
- Battery
- NP-W235 Li-ion
- Dimensions
- 134.6 x
- Lens
- Interchangeable lens
- Predecessor
- Fujifilm X-T3
- Successor
- Fujifilm X-T5
- Launch price
- USD 1,699 (body),; USD 2,199 (kit)
- Drive
- 30.0 fps
- Video
- MP4 / MOV; 4K up to 60 fps,; 1080p up to 240 fps
Specifications merged from Wikipedia, Wikidata and Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 1.52 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.
| Lens on this camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 8 mm | 12 mm | 112.2° | 88.5° | 121.3° |
| 10 mm | 15 mm | 99.9° | 75.9° | 109.8° |
| 12 mm | 18 mm | 89.5° | 66.0° | 99.7° |
| 14 mm | 21 mm | 80.7° | 58.2° | 90.9° |
| 16 mm | 24 mm | 73.3° | 52.0° | 83.3° |
| 18 mm | 27 mm | 66.9° | 46.9° | 76.7° |
| 20 mm | 30 mm | 61.5° | 42.6° | 70.9° |
| 24 mm | 36 mm | 52.7° | 36.0° | 61.3° |
| 28 mm | 43 mm | 46.1° | 31.1° | 53.9° |
| 35 mm | 53 mm | 37.6° | 25.1° | 44.2° |
| 40 mm | 61 mm | 33.1° | 22.1° | 39.2° |
| 50 mm | 76 mm | 26.8° | 17.7° | 31.8° |
| 56 mm | 85 mm | 24.0° | 15.9° | 28.5° |
| 70 mm | 106 mm | 19.3° | 12.7° | 23.0° |
| 85 mm | 129 mm | 15.9° | 10.5° | 19.0° |
| 100 mm | 152 mm | 13.6° | 8.9° | 16.2° |
| 135 mm | 205 mm | 10.1° | 6.6° | 12.0° |
| 200 mm | 304 mm | 6.8° | 4.5° | 8.1° |
| 300 mm | 456 mm | 4.5° | 3.0° | 5.4° |
| 400 mm | 608 mm | 3.4° | 2.2° | 4.1° |
| 600 mm | 912 mm | 2.3° | 1.5° | 2.7° |
| 800 mm | 1216 mm | 1.7° | 1.1° | 2.0° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 19.7 µm (the 0.030 mm full-frame standard scaled by the crop factor). Detailed tables: 24 mm f/1.8, 24 mm f/2.8, 35 mm f/1.8, 35 mm f/2.8, 50 mm f/1.8, 50 mm f/2.8.
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 14 mm | f/1.8 | 8.9 cm | 36.9 cm | 1.65 m | 4.59 m | 49.2 m | ∞ | 5.53 m |
| 14 mm | f/2.8 | 14.0 cm | 60.2 cm | 3.26 m | 17.3 m | ∞ | ∞ | 3.56 m |
| 14 mm | f/4 | 20.3 cm | 94.3 cm | 8.87 m | ∞ | ∞ | ∞ | 2.50 m |
| 14 mm | f/8 | 46.2 cm | 4.30 m | ∞ | ∞ | ∞ | ∞ | 1.26 m |
| 28 mm | f/1.8 | 2.1 cm | 8.8 cm | 36.0 cm | 82.3 cm | 2.37 m | 11.4 m | 22.1 m |
| 28 mm | f/2.8 | 3.3 cm | 13.8 cm | 56.7 cm | 1.31 m | 3.99 m | 27.8 m | 14.2 m |
| 28 mm | f/4 | 4.8 cm | 19.8 cm | 82.7 cm | 1.97 m | 6.68 m | ∞ | 9.96 m |
| 28 mm | f/8 | 9.6 cm | 40.7 cm | 1.89 m | 5.59 m | ∞ | ∞ | 4.99 m |
| 48 mm | f/1.8 | 0.7 cm | 2.9 cm | 12.0 cm | 27.4 cm | 76.8 cm | 3.14 m | 64.9 m |
| 48 mm | f/2.8 | 1.1 cm | 4.6 cm | 18.8 cm | 42.7 cm | 1.20 m | 5.06 m | 41.8 m |
| 48 mm | f/4 | 1.5 cm | 6.5 cm | 26.9 cm | 61.3 cm | 1.75 m | 7.71 m | 29.2 m |
| 48 mm | f/8 | 3.1 cm | 13.1 cm | 54.5 cm | 1.27 m | 3.83 m | 25.5 m | 14.6 m |
| 78 mm | f/1.8 | 0.2 cm | 1.1 cm | 4.5 cm | 10.2 cm | 28.8 cm | 1.16 m | 171 m |
| 78 mm | f/2.8 | 0.4 cm | 1.7 cm | 7.0 cm | 15.9 cm | 44.8 cm | 1.82 m | 110 m |
| 78 mm | f/4 | 0.5 cm | 2.4 cm | 10.0 cm | 22.8 cm | 64.1 cm | 2.62 m | 77.2 m |
| 78 mm | f/8 | 1.1 cm | 4.8 cm | 20.0 cm | 45.8 cm | 1.30 m | 5.51 m | 38.6 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
Diffraction & pixel pitch#
With 3.81 µm pixels, diffraction starts to soften pixel-level detail around f/5.7. For maximum sharpness keep landscapes between f/3.1 and f/6; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 1.0 px | sharp |
| f/4 | 5.4 µm | 1.4 px | sharp |
| f/5.6 | 7.5 µm | 2.0 px | sharp |
| f/8 | 10.7 µm | 2.8 px | slight softening |
| f/11 | 14.8 µm | 3.9 px | visibly soft |
| f/16 | 21.5 µm | 5.6 px | visibly soft |
| f/22 | 29.5 µm | 7.7 px | visibly soft |
Maximum print sizes#
At 26.1 MP the Fujifilm X-T4 produces 6,240 × 4,160 pixel images. See the 26 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 20.8 × 13.9 in | 53 × 35 cm |
| 240 DPI | Fine-art inkjet | 26.0 × 17.3 in | 66 × 44 cm |
| 200 DPI | Wall print | 31.2 × 20.8 in | 79 × 53 cm |
| 150 DPI | Poster, viewed from 1 m+ | 41.6 × 27.7 in | 106 × 70 cm |
Night-sky exposure limits#
Longest exposure before stars trail. The NPF rule accounts for pixel pitch and is stricter than the classic 500 rule — use it for pin-sharp stars on high-resolution sensors.
| Focal length | 500 rule | NPF f/1.8 | NPF f/2.8 | NPF f/4 |
|---|---|---|---|---|
| 9 mm (14 mm eq.) | 36.5 s | 19.7 s | 23.6 s | 28.3 s |
| 13 mm (20 mm eq.) | 25.3 s | 13.6 s | 16.3 s | 19.6 s |
| 16 mm (24 mm eq.) | 20.6 s | 11.1 s | 13.3 s | 15.9 s |
| 23 mm (35 mm eq.) | 14.3 s | 7.7 s | 9.2 s | 11.1 s |
| 33 mm (50 mm eq.) | 10.0 s | 5.4 s | 6.4 s | 7.7 s |
Handheld shutter speed guide#
The reciprocal rule uses the equivalent focal length. High-resolution sensors may need one stop faster than this for pixel-sharp results.
| Focal length | No stabilisation (1/equiv. focal) | With 3-stop IS | With 5-stop IBIS |
|---|---|---|---|
| 16 mm | 1/25 s | 0.3 s | 1.3 s |
| 33 mm | 1/50 s | 1/6 s | 0.6 s |
| 66 mm | 1/100 s | 1/13 s | 0.3 s |
| 132 mm | 1/200 s | 1/25 s | 1/6 s |
Lenses for the Fujifilm X-T4#
Native Fujifilm X-mount lenses in our database (73 total). Also adaptable: T-mount (T2), M39 / LTM (Leica thread), M42 screw mount, Deckel (DKL).
- Samyang 8mm f/2.8 UMC Fish-eye 8 mm
- Samyang 8mm f/3.5 Fish-Eye CS 8 mm
- Laowa 9mm f/2.8 Zero-D 9 mm
- Viltrox AF 9mm f/2.8 Z/E/XF 9 mm
- Fujifilm XF 10-24mm f/4 R OIS 10–24 mm
- Fujifilm XF 10-24mm f/4 R OIS WR 10–24 mm
- Samyang 10mm f/2.8 ED AS NCS CS 10 mm
- Sigma 10-18mm F2.8 DC DN | Contemporary 023 10–18 mm
- Tamron 11-20mm f/2.8 Di III-A RXD (B060) 11–20 mm
- Samyang 12mm f/2.0 NCS CS 12 mm
- Samyang AF 12mm f/2.0 12 mm
- Zeiss Touit 2.8/12 12 mm
- Viltrox AF 13mm F1.4 13 mm
- Fujifilm XF 14mm f/2.8 R 14 mm
- Samyang 14mm f/2.8 AE ED AS IF UMC 14 mm
- Fujifilm XC 15-45mm f/3.5-5.6 OIS PZ 15–45 mm
- Laowa 15mm F/4 Wide Angle Macro 15 mm
- Viltrox AF 15mm F1.7 Air 15 mm
- Fujifilm XC 16-50mm f/3.5-5.6 OIS 16–50 mm
- Fujifilm XC 16-50mm f/3.5-5.6 OIS II 16–50 mm
- Fujifilm XF 16-50mm f/2.8-4.8 R LM WR 16–50 mm
- Fujifilm XF 16-55mm f/2.8 R LM WR 16–55 mm
- Fujifilm XF 16-55mm f/2.8 R LM WR II 16–55 mm
- Fujifilm XF 16-80mm f/4 R OIS WR 16–80 mm
- Fujifilm XF 16mm f/1.4 R WR 16 mm
- Fujifilm XF 16mm f/2.8 R WR 16 mm
- Samyang 16mm f/2.0 ED AS UMC CS 16 mm
- Sigma 16-300mm F3.5-6.7 DC OS | C 16–300 mm
- Sigma 16mm f/1.4 DC DN Contemporary 16 mm
- Tamron 17-70mm F/2.8 Di III-A VC RXD 17–70 mm
- Fujifilm XF 18-135mm f/3.5-5.6R LM OIS WR 18–135 mm
- Fujifilm XF 18-55mm f/2.8-4 R LM OIS 18–55 mm
- Fujifilm XF 18mm f/2 R 18 mm
- Sigma 18-50mm F2.8 DC DN | Contemporary 021 18–50 mm
- Tamron 18-300mm F3.5-6.3 DiIII-A VC VXD B061X 18–300 mm
- Samyang 20mm f/1.8 ED AS UMC 20 mm
Similar cameras#
Other APS-C cameras from around the same time.
- Nikon Zfc 2021
- Ricoh Pentax K-3 Mark III 2021
- Sony ZV-E10 2021
- Nikon Z50 2019
- Nikon Z30 2022
- Sony α6400 2019
- Sony α6600 2019
- Sony FX30 2022
- Nikon D3500 2018
- Pentax K-7
- Pentax K-S1
- Pentax K-S2
Frequently asked questions#
What is the crop factor of the Fujifilm X-T4?
The Fujifilm X-T4 has a crop factor of 1.52× relative to 35 mm full frame (diagonal 28.5 mm vs 43.3 mm).
What size is the Fujifilm X-T4 sensor?
23.8 × 15.6 mm (APS-C), an area of 371 mm² — 43% of full frame.
Is the Fujifilm X-T4 full frame?
No — its sensor is APS-C, which is 2.3× smaller in area than full frame.
How many megapixels does the Fujifilm X-T4 have?
26.1 megapixels (6,240 × 4,160 pixels), enough for a 21 × 14 inch print at 300 DPI.
What lens mount does the Fujifilm X-T4 use?
The Fujifilm X-T4 uses the Fujifilm X-mount (flange distance 17.70 mm).
How long can I expose the night sky with the Fujifilm X-T4?
With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 16 s.
Sources & licences#
- Wikipedia: Fujifilm X-T4 — CC BY-SA 4.0
- Wikidata Q92415719 — CC0
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources