Sony α7S Specs, Sensor Size & Crop Factor

Q: What is the crop factor of the Sony α7S?

The Sony α7S has a crop factor of 1.00× relative to 35 mm full frame (diagonal 43.3 mm vs 43.3 mm).

1.00×

Crop factor

35.6×24.6 mm

Sensor size

875 mm²

Area · 101% of full frame

Specifications#

Brand: Sony
Model: α7S
Also known as: ILCE-7S
Camera type: Mirrorless
Lens mount: Sony E-mount
Sensor size: 35.6 × 24.6 mm (Full frame (35 mm))
Crop factor: 1.00×
Weight: 650 g (22.9 oz)

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

Sensor size compared#

The Sony α7S sensor (highlighted) drawn to scale against common formats. Its area is 101% of a full-frame sensor.

Focal length equivalents & field of view#

Multiply any focal length by 1.00 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
10 mm	10 mm	121.3°	101.8°	130.4°
12 mm	12 mm	112.0°	91.4°	122.0°
14 mm	14 mm	103.6°	82.6°	114.2°
16 mm	16 mm	96.1°	75.1°	107.0°
18 mm	18 mm	89.4°	68.7°	100.5°
20 mm	20 mm	83.3°	63.2°	94.5°
24 mm	24 mm	73.1°	54.3°	84.1°
28 mm	28 mm	64.9°	47.4°	75.4°
35 mm	35 mm	53.9°	38.7°	63.4°
40 mm	40 mm	48.0°	34.2°	56.8°
50 mm	50 mm	39.2°	27.6°	46.8°
56 mm	56 mm	35.3°	24.8°	42.2°
70 mm	70 mm	28.5°	19.9°	34.3°
85 mm	85 mm	23.7°	16.5°	28.6°
100 mm	100 mm	20.2°	14.0°	24.4°
135 mm	135 mm	15.0°	10.4°	18.2°
200 mm	200 mm	10.2°	7.0°	12.3°
300 mm	300 mm	6.8°	4.7°	8.2°
400 mm	400 mm	5.1°	3.5°	6.2°
600 mm	600 mm	3.4°	2.3°	4.1°
800 mm	800 mm	2.5°	1.8°	3.1°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 30.0 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
22 mm	f/1.8	5.3 cm	22.1 cm	92.8 cm	2.24 m	8.03 m	∞	8.98 m
22 mm	f/2.8	8.4 cm	35.0 cm	1.56 m	4.23 m	34.1 m	∞	5.78 m
22 mm	f/4	12.0 cm	51.5 cm	2.58 m	9.74 m	∞	∞	4.06 m
22 mm	f/8	25.1 cm	1.27 m	103 m	∞	∞	∞	2.04 m
43 mm	f/1.8	1.3 cm	5.6 cm	22.9 cm	52.2 cm	1.48 m	6.35 m	34.3 m
43 mm	f/2.8	2.1 cm	8.7 cm	35.8 cm	82.1 cm	2.37 m	11.4 m	22.1 m
43 mm	f/4	3.0 cm	12.5 cm	51.6 cm	1.20 m	3.59 m	22.2 m	15.5 m
43 mm	f/8	6.0 cm	25.2 cm	1.09 m	2.70 m	11.0 m	∞	7.75 m
73 mm	f/1.8	0.4 cm	1.9 cm	7.8 cm	17.8 cm	50.1 cm	2.03 m	98.8 m
73 mm	f/2.8	0.7 cm	2.9 cm	12.2 cm	27.7 cm	78.1 cm	3.21 m	63.5 m
73 mm	f/4	1.0 cm	4.2 cm	17.4 cm	39.7 cm	1.12 m	4.71 m	44.5 m
73 mm	f/8	1.9 cm	8.4 cm	35.0 cm	80.5 cm	2.33 m	11.2 m	22.3 m
120 mm	f/1.8	0.1 cm	0.7 cm	2.8 cm	6.5 cm	18.3 cm	74.2 cm	267 m
120 mm	f/2.8	0.2 cm	1.0 cm	4.4 cm	10.1 cm	28.5 cm	1.16 m	172 m
120 mm	f/4	0.3 cm	1.5 cm	6.3 cm	14.4 cm	40.7 cm	1.66 m	120 m
120 mm	f/8	0.6 cm	2.9 cm	12.5 cm	28.9 cm	81.9 cm	3.39 m	60.1 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 43 mm
f/1.2	f/1.2	51.4 m
f/1.4	f/1.4	44.1 m
f/1.8	f/1.8	34.3 m
f/2	f/2.0	30.9 m
f/2.8	f/2.8	22.1 m
f/4	f/4.0	15.5 m
f/5.6	f/5.6	11.0 m
f/8	f/8.0	7.75 m

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. (NPF needs a known resolution and is omitted here.)

Focal length	500 rule
14 mm (14 mm eq.)	35.7 s
20 mm (20 mm eq.)	25.0 s
24 mm (24 mm eq.)	20.8 s
35 mm (35 mm eq.)	14.3 s
50 mm (50 mm eq.)	10.0 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
24 mm	1/25 s	0.3 s	1.3 s
50 mm	1/50 s	1/6 s	0.6 s
100 mm	1/100 s	1/13 s	0.3 s
200 mm	1/200 s	1/25 s	1/6 s

Lenses for the Sony α7S#

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 Full frame (35 mm) cameras from around the same time.

Frequently asked questions#

What is the crop factor of the Sony α7S?

The Sony α7S has a crop factor of 1.00× relative to 35 mm full frame (diagonal 43.3 mm vs 43.3 mm).

What size is the Sony α7S sensor?

35.6 × 24.6 mm (Full frame (35 mm)), an area of 875 mm² — 101% of full frame.

Is the Sony α7S full frame?

Yes — its sensor is the same 36 × 24 mm size as 35 mm film.

What lens mount does the Sony α7S use?

The Sony α7S uses the Sony E-mount (flange distance 18.00 mm).

How long can I expose the night sky with the Sony α7S?

With a 20 mm lens (20 mm equivalent) the 500 rule gives 25 s.

Sources & licences#

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