Sony ILCE-QX1 Specs, Sensor Size & Crop Factor

Q: What is the crop factor of the Sony ILCE-QX1?

The Sony ILCE-QX1 has a crop factor of 1.55× relative to 35 mm full frame (diagonal 27.8 mm vs 43.3 mm).

1.55×

Crop factor

23.2×15.4 mm

Sensor size

357 mm²

Area · 41% of full frame

20 MP

Resolution

4.25 µm

Pixel pitch

f/6.3

Diffraction-limited aperture

Specifications#

Brand: Sony
Model: ILCE-QX1
Camera type: Digital camera
Lens mount: Sony E-mount
Sensor size: 23.2 × 15.4 mm (APS-C)
Crop factor: 1.55×
Resolution: 20 MP (5,456 × 3,632 px)
Fastest shutter: 1/4,000 s
Continuous shooting: 3.5 fps
Weight: 216 g (7.6 oz)
Sensor type: CMOS
AF points / area: 25 focus points
Dimensions: 74 × 70 × 53 mm (2.91 × 2.76 × 2.09 inches)
Drive: 3.5 frames per second in speed priority mode, 2.5 fps in standard continuous mode

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

Sensor size compared#

The Sony ILCE-QX1 sensor (highlighted) drawn to scale against common formats. Its area is 41% of a full-frame sensor, which collects about 1.3 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 1.55 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	110.8°	87.8°	120.2°
10 mm	16 mm	98.5°	75.2°	108.6°
12 mm	19 mm	88.1°	65.4°	98.5°
14 mm	22 mm	79.3°	57.6°	89.7°
16 mm	25 mm	71.9°	51.4°	82.1°
18 mm	28 mm	65.6°	46.3°	75.4°
20 mm	31 mm	60.2°	42.1°	69.7°
24 mm	37 mm	51.6°	35.6°	60.2°
28 mm	44 mm	45.0°	30.8°	52.9°
35 mm	54 mm	36.7°	24.8°	43.4°
40 mm	62 mm	32.3°	21.8°	38.4°
50 mm	78 mm	26.1°	17.5°	31.1°
56 mm	87 mm	23.4°	15.7°	27.9°
70 mm	109 mm	18.8°	12.6°	22.5°
85 mm	132 mm	15.5°	10.4°	18.6°
100 mm	155 mm	13.2°	8.8°	15.9°
135 mm	210 mm	9.8°	6.5°	11.8°
200 mm	311 mm	6.6°	4.4°	8.0°
300 mm	466 mm	4.4°	2.9°	5.3°
400 mm	622 mm	3.3°	2.2°	4.0°
600 mm	932 mm	2.2°	1.5°	2.7°
800 mm	1243 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 19.3 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	8.7 cm	36.1 cm	1.61 m	4.41 m	40.5 m	∞	5.65 m
14 mm	f/2.8	13.7 cm	58.7 cm	3.13 m	15.4 m	∞	∞	3.64 m
14 mm	f/4	19.9 cm	91.5 cm	8.08 m	∞	∞	∞	2.55 m
14 mm	f/8	44.9 cm	3.92 m	∞	∞	∞	∞	1.28 m
28 mm	f/1.8	2.1 cm	8.6 cm	35.2 cm	80.4 cm	2.32 m	11.0 m	22.6 m
28 mm	f/2.8	3.3 cm	13.5 cm	55.4 cm	1.28 m	3.89 m	26.1 m	14.5 m
28 mm	f/4	4.7 cm	19.3 cm	80.8 cm	1.92 m	6.44 m	561 m	10.2 m
28 mm	f/8	9.4 cm	39.8 cm	1.83 m	5.35 m	242 m	∞	5.10 m
48 mm	f/1.8	0.7 cm	2.9 cm	11.8 cm	26.8 cm	75.1 cm	3.07 m	66.3 m
48 mm	f/2.8	1.1 cm	4.5 cm	18.4 cm	41.8 cm	1.18 m	4.94 m	42.7 m
48 mm	f/4	1.5 cm	6.4 cm	26.3 cm	60.0 cm	1.71 m	7.51 m	29.9 m
48 mm	f/8	3.0 cm	12.8 cm	53.3 cm	1.24 m	3.73 m	24.0 m	15.0 m
78 mm	f/1.8	0.2 cm	1.1 cm	4.4 cm	10.0 cm	28.1 cm	1.14 m	175 m
78 mm	f/2.8	0.4 cm	1.6 cm	6.8 cm	15.6 cm	43.8 cm	1.78 m	113 m
78 mm	f/4	0.5 cm	2.3 cm	9.8 cm	22.3 cm	62.7 cm	2.56 m	78.9 m
78 mm	f/8	1.1 cm	4.7 cm	19.6 cm	44.8 cm	1.27 m	5.38 m	39.5 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/1.9	33.9 m
f/1.4	f/2.2	29.0 m
f/1.8	f/2.8	22.6 m
f/2	f/3.1	20.3 m
f/2.8	f/4.4	14.5 m
f/4	f/6.2	10.2 m
f/5.6	f/8.7	7.28 m
f/8	f/12.4	5.10 m

Diffraction & pixel pitch#

With 4.25 µm pixels, diffraction starts to soften pixel-level detail around f/6.3. For maximum sharpness keep landscapes between f/3.5 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	0.9 px	sharp
f/4	5.4 µm	1.3 px	sharp
f/5.6	7.5 µm	1.8 px	sharp
f/8	10.7 µm	2.5 px	slight softening
f/11	14.8 µm	3.5 px	visibly soft
f/16	21.5 µm	5.0 px	visibly soft
f/22	29.5 µm	6.9 px	visibly soft

Maximum print sizes#

At 20 MP the Sony ILCE-QX1 produces 5,456 × 3,632 pixel images. See the 20 megapixel guide or the print size calculator.

Resolution	Typical use	Inches	Centimetres
300 DPI	Photo-lab quality	18.2 × 12.1 in	46 × 31 cm
240 DPI	Fine-art inkjet	22.7 × 15.1 in	58 × 38 cm
200 DPI	Wall print	27.3 × 18.2 in	69 × 46 cm
150 DPI	Poster, viewed from 1 m+	36.4 × 24.2 in	92 × 62 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.)	35.8 s	21.2 s	25.1 s	29.7 s
13 mm (20 mm eq.)	24.8 s	14.7 s	17.4 s	20.6 s
15 mm (23 mm eq.)	21.5 s	12.7 s	15.0 s	17.8 s
23 mm (36 mm eq.)	14.0 s	8.3 s	9.8 s	11.6 s
32 mm (50 mm eq.)	10.1 s	6.0 s	7.0 s	8.4 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
15 mm	1/25 s	0.3 s	1.3 s
32 mm	1/50 s	1/6 s	0.6 s
64 mm	1/100 s	1/13 s	0.3 s
129 mm	1/200 s	1/25 s	1/6 s

Lenses for the Sony ILCE-QX1#

Native Sony E-mount lenses in our database (174 total). Also adaptable: T-mount (T2), M39 / LTM (Leica thread), M42 screw mount, Deckel (DKL).

Sony FE 12-24mm f/4 G 12–24 mm
Sony FE 20-70mm f/4 G 20–70 mm
Sony FE 20mm f/1.8 G 20 mm
Sony FE 24-105mm f/4 G OSS 24–105 mm
Sony FE 28-60mm f/4-5.6 28–60 mm
Sony FE 28-70mm f/3.5-5.6 OSS 28–70 mm
Sony FE 50mm f/1.2 GM 50 mm
Sony FE 70-200mm f/2.8 GM OSS 70–200 mm
Sony FE 70-200mm f/4 G OSS 70–200 mm
Sony FE 70-300mm f/4.5-5.6 G OSS 70–300 mm
Sony FE 85mm f/1.4 GM 85 mm
Sony FE 85mm f/1.8 85 mm
Sony FE 90mm f/2.8 Macro G OSS 90 mm
Sony FE 200-600mm f/5.6-6.3 G OSS 200–600 mm
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
Laowa 9mm f/5.6 FF RL 9 mm
Viltrox AF 9mm f/2.8 Z/E/XF 9 mm
Laowa 10mm f/2.8 Zero-D FF 10 mm
Samyang 10mm f/2.8 ED AS NCS CS 10 mm
Sigma 10-18mm F2.8 DC DN | Contemporary 023 10–18 mm
Sony E 10-18mm f/4 OSS 10–18 mm
Voigtländer Heliar-Hyper Wide 10mm F5.6 10 mm
Sony E 11mm f/1.8 11 mm
Tamron 11-20mm f/2.8 Di III-A RXD (B060) 11–20 mm
Laowa 12mm f/2.8 Zero-D 12 mm
Samyang 12mm f/2.0 NCS CS 12 mm
Samyang 12mm f/2.8 Fish-Eye ED AS NCS 12 mm
Samyang AF 12mm f/2.0 12 mm
Zeiss Touit 2.8/12 12 mm
Viltrox AF 13mm F1.4 13 mm
Samyang 14mm f/2.8 AE ED AS IF UMC 14 mm
Samyang AF 14mm f/2.8 14 mm
Sigma 14-24mm F2.8 DG DN | Art 019 14–24 mm
Sigma 14mm f/1.8 DG HSM | A 14 mm

Similar cameras#

Other APS-C cameras from around the same time.

Frequently asked questions#

What is the crop factor of the Sony ILCE-QX1?

The Sony ILCE-QX1 has a crop factor of 1.55× relative to 35 mm full frame (diagonal 27.8 mm vs 43.3 mm).

What size is the Sony ILCE-QX1 sensor?

23.2 × 15.4 mm (APS-C), an area of 357 mm² — 41% of full frame.

Is the Sony ILCE-QX1 full frame?

No — its sensor is APS-C, which is 2.4× smaller in area than full frame.

How many megapixels does the Sony ILCE-QX1 have?

20 megapixels (5,456 × 3,632 pixels), enough for a 18 × 12 inch print at 300 DPI.

What lens mount does the Sony ILCE-QX1 use?

The Sony ILCE-QX1 uses the Sony E-mount (flange distance 18.00 mm).

How long can I expose the night sky with the Sony ILCE-QX1?

With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 17 s.

Sources & licences#

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

Sony ILCE-QX1