Fujifilm X-A1 Specs, Sensor Size & Crop Factor

Q: What is the crop factor of the Fujifilm X-A1?

The Fujifilm X-A1 has a crop factor of 1.53× relative to 35 mm full frame (diagonal 28.3 mm vs 43.3 mm).

1.53×

Crop factor

23.6×15.6 mm

Sensor size

368 mm²

Area · 43% of full frame

16 MP

Resolution

4.82 µm

Pixel pitch

f/7.2

Diffraction-limited aperture

2013

Release year

Specifications#

Brand: Fujifilm
Model: X-A1
Camera type: Mirrorless
Released: 2013-01-01
Lens mount: Fujifilm X-mount
Sensor size: 23.6 × 15.6 mm (APS-C)
Crop factor: 1.53×
Resolution: 16 MP (4,896 × 3,264 px)
Fastest shutter: 1/4,000 s
Continuous shooting: 6 fps
Weight: 330 g (11.6 oz)
Sensor type: CMOS
AF points / area: 49 focus points
Dimensions: 117 × 67 × 39mm (4.6 × 2.62 × 1.54 inches)
Drive: 6 frames per second

Specifications merged from Wikipedia, Wikidata, Lensfun and openMVG. Spot an error? Tell us.

Sensor size compared#

The Fujifilm X-A1 sensor (highlighted) drawn to scale against common formats. Its area is 43% of a full-frame sensor, which collects about 1.2 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 1.53 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	111.7°	88.5°	121.0°
10 mm	15 mm	99.4°	75.9°	109.5°
12 mm	18 mm	89.0°	66.0°	99.4°
14 mm	21 mm	80.3°	58.2°	90.6°
16 mm	24 mm	72.8°	52.0°	83.0°
18 mm	28 mm	66.5°	46.9°	76.3°
20 mm	31 mm	61.1°	42.6°	70.5°
24 mm	37 mm	52.4°	36.0°	61.0°
28 mm	43 mm	45.7°	31.1°	53.6°
35 mm	54 mm	37.3°	25.1°	44.0°
40 mm	61 mm	32.9°	22.1°	38.9°
50 mm	76 mm	26.6°	17.7°	31.6°
56 mm	86 mm	23.8°	15.9°	28.4°
70 mm	107 mm	19.1°	12.7°	22.8°
85 mm	130 mm	15.8°	10.5°	18.9°
100 mm	153 mm	13.5°	8.9°	16.1°
135 mm	206 mm	10.0°	6.6°	12.0°
200 mm	306 mm	6.8°	4.5°	8.1°
300 mm	459 mm	4.5°	3.0°	5.4°
400 mm	612 mm	3.4°	2.2°	4.1°
600 mm	918 mm	2.3°	1.5°	2.7°
800 mm	1224 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 19.6 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	8.8 cm	36.7 cm	1.64 m	4.54 m	46.5 m	∞	5.57 m
14 mm	f/2.8	13.9 cm	59.8 cm	3.22 m	16.7 m	∞	∞	3.58 m
14 mm	f/4	20.2 cm	93.5 cm	8.64 m	∞	∞	∞	2.51 m
14 mm	f/8	45.9 cm	4.19 m	∞	∞	∞	∞	1.26 m
28 mm	f/1.8	2.1 cm	8.8 cm	35.8 cm	81.8 cm	2.36 m	11.3 m	22.2 m
28 mm	f/2.8	3.3 cm	13.7 cm	56.3 cm	1.31 m	3.96 m	27.3 m	14.3 m
28 mm	f/4	4.7 cm	19.6 cm	82.1 cm	1.96 m	6.61 m	5.0 km	10.0 m
28 mm	f/8	9.5 cm	40.4 cm	1.87 m	5.52 m	1.0 km	∞	5.02 m
48 mm	f/1.8	0.7 cm	2.9 cm	12.0 cm	27.2 cm	76.3 cm	3.12 m	65.3 m
48 mm	f/2.8	1.1 cm	4.5 cm	18.7 cm	42.4 cm	1.20 m	5.03 m	42.0 m
48 mm	f/4	1.5 cm	6.5 cm	26.7 cm	60.9 cm	1.74 m	7.66 m	29.4 m
48 mm	f/8	3.1 cm	13.0 cm	54.1 cm	1.26 m	3.81 m	25.1 m	14.7 m
78 mm	f/1.8	0.2 cm	1.1 cm	4.5 cm	10.2 cm	28.6 cm	1.16 m	172 m
78 mm	f/2.8	0.4 cm	1.7 cm	6.9 cm	15.8 cm	44.5 cm	1.81 m	111 m
78 mm	f/4	0.5 cm	2.4 cm	9.9 cm	22.6 cm	63.7 cm	2.60 m	77.6 m
78 mm	f/8	1.1 cm	4.8 cm	19.9 cm	45.5 cm	1.29 m	5.48 m	38.8 m

Equivalent aperture#

Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.

Aperture on this camera	Full-frame equivalent (depth of field)	Hyperfocal at 28 mm
f/1.2	f/1.8	33.3 m
f/1.4	f/2.1	28.6 m
f/1.8	f/2.8	22.2 m
f/2	f/3.1	20.0 m
f/2.8	f/4.3	14.3 m
f/4	f/6.1	10.0 m
f/5.6	f/8.6	7.17 m
f/8	f/12.2	5.02 m

Diffraction & pixel pitch#

With 4.82 µm pixels, diffraction starts to soften pixel-level detail around f/7.2. For maximum sharpness keep landscapes between f/4.0 and f/7; stopping down further trades detail for depth of field.

Aperture	Airy disk diameter	Spread over	At 100% view
f/2.8	3.8 µm	0.8 px	sharp
f/4	5.4 µm	1.1 px	sharp
f/5.6	7.5 µm	1.6 px	sharp
f/8	10.7 µm	2.2 px	slight softening
f/11	14.8 µm	3.1 px	visibly soft
f/16	21.5 µm	4.5 px	visibly soft
f/22	29.5 µm	6.1 px	visibly soft

Maximum print sizes#

At 16 MP the Fujifilm X-A1 produces 4,896 × 3,264 pixel images. See the 16 megapixel guide or the print size calculator.

Resolution	Typical use	Inches	Centimetres
300 DPI	Photo-lab quality	16.3 × 10.9 in	41 × 28 cm
240 DPI	Fine-art inkjet	20.4 × 13.6 in	52 × 35 cm
200 DPI	Wall print	24.5 × 16.3 in	62 × 41 cm
150 DPI	Poster, viewed from 1 m+	32.6 × 21.8 in	83 × 55 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.)	36.3 s	23.1 s	27.0 s	31.6 s
13 mm (20 mm eq.)	25.1 s	16.0 s	18.7 s	21.9 s
16 mm (24 mm eq.)	20.4 s	13.0 s	15.2 s	17.8 s
23 mm (35 mm eq.)	14.2 s	9.0 s	10.5 s	12.4 s
33 mm (50 mm eq.)	9.9 s	6.3 s	7.4 s	8.6 s

Open the NPF / 500 rule calculator →

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
65 mm	1/100 s	1/13 s	0.3 s
131 mm	1/200 s	1/25 s	1/6 s

Lenses for the Fujifilm X-A1#

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.

Frequently asked questions#

What is the crop factor of the Fujifilm X-A1?

The Fujifilm X-A1 has a crop factor of 1.53× relative to 35 mm full frame (diagonal 28.3 mm vs 43.3 mm).

What size is the Fujifilm X-A1 sensor?

23.6 × 15.6 mm (APS-C), an area of 368 mm² — 43% of full frame.

Is the Fujifilm X-A1 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-A1 have?

16 megapixels (4,896 × 3,264 pixels), enough for a 16 × 11 inch print at 300 DPI.

What lens mount does the Fujifilm X-A1 use?

The Fujifilm X-A1 uses the Fujifilm X-mount (flange distance 17.70 mm).

How long can I expose the night sky with the Fujifilm X-A1?

With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 19 s.

Sources & licences#

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