DSLR · 2009

Sony Alpha 380

The Sony Alpha 380 is a DSLR from 2009 with a APS-C sensor measuring 23.6 × 15.7 mm. Its crop factor is 1.53×, so a 50 mm lens frames like 76 mm on full frame. Every number below is calculated for this exact sensor.

APS-C1.53× cropSony / Minolta A-mount
Sony Alpha 380 camera
Photo: Anıl Öztaş, CC BY-SA 4.0, via Wikimedia Commons
1.53×
Crop factor
23.6×15.7 mm
Sensor size
369 mm²
Area · 43% of full frame
2009
Release year

Specifications#

Brand
Sony
Model
Alpha 380
Also known as
DSLR-A380
Camera type
DSLR
Released
2009-01-01
Sensor size
23.6 × 15.7 mm (APS-C)
Crop factor
1.53×

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

Sensor size compared#

Medium format 44 × 33 mmFull frame (35 mm)Sony Alpha 380Four Thirds / Micro Four Thirds1" (one-inch) sensor
The Sony Alpha 380 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 cameraFull-frame equivalentHorizontalVerticalDiagonal
8 mm12 mm111.7°88.7°121.1°
10 mm15 mm99.4°76.1°109.5°
12 mm18 mm89.0°66.2°99.4°
14 mm21 mm80.3°58.4°90.6°
16 mm24 mm72.8°52.1°83.0°
18 mm28 mm66.5°47.0°76.4°
20 mm31 mm61.1°42.7°70.6°
24 mm37 mm52.4°36.1°61.1°
28 mm43 mm45.7°31.2°53.6°
35 mm53 mm37.3°25.2°44.1°
40 mm61 mm32.9°22.1°39.0°
50 mm76 mm26.6°17.8°31.6°
56 mm86 mm23.8°15.9°28.4°
70 mm107 mm19.1°12.8°22.9°
85 mm130 mm15.8°10.5°18.9°
100 mm153 mm13.5°8.9°16.1°
135 mm206 mm10.0°6.6°12.0°
200 mm306 mm6.8°4.5°8.1°
300 mm458 mm4.5°3.0°5.4°
400 mm611 mm3.4°2.2°4.1°
600 mm917 mm2.3°1.5°2.7°
800 mm1222 mm1.7°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.

FocalAperture50.0 cm1.00 m2.00 m3.00 m5.00 m10.0 mHyperfocal
14 mmf/1.88.8 cm36.7 cm1.64 m4.55 m46.9 m∞5.56 m
14 mmf/2.813.9 cm59.9 cm3.23 m16.8 m∞∞3.58 m
14 mmf/420.2 cm93.6 cm8.68 m∞∞∞2.51 m
14 mmf/845.9 cm4.21 m∞∞∞∞1.26 m
28 mmf/1.82.1 cm8.8 cm35.8 cm81.9 cm2.36 m11.3 m22.2 m
28 mmf/2.83.3 cm13.7 cm56.4 cm1.31 m3.97 m27.4 m14.3 m
28 mmf/44.7 cm19.7 cm82.2 cm1.96 m6.62 m9.6 km10.0 m
28 mmf/89.5 cm40.5 cm1.87 m5.54 m1.3 km∞5.02 m
48 mmf/1.80.7 cm2.9 cm12.0 cm27.2 cm76.4 cm3.13 m65.2 m
48 mmf/2.81.1 cm4.5 cm18.7 cm42.5 cm1.20 m5.03 m42.0 m
48 mmf/41.5 cm6.5 cm26.7 cm61.0 cm1.74 m7.67 m29.4 m
48 mmf/83.1 cm13.0 cm54.2 cm1.26 m3.81 m25.1 m14.7 m
78 mmf/1.80.2 cm1.1 cm4.5 cm10.2 cm28.6 cm1.16 m172 m
78 mmf/2.80.4 cm1.7 cm6.9 cm15.9 cm44.6 cm1.81 m111 m
78 mmf/40.5 cm2.4 cm9.9 cm22.7 cm63.8 cm2.60 m77.5 m
78 mmf/81.1 cm4.8 cm19.9 cm45.5 cm1.29 m5.48 m38.8 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 cameraFull-frame equivalent (depth of field)Hyperfocal at 28 mm
f/1.2f/1.833.3 m
f/1.4f/2.128.5 m
f/1.8f/2.822.2 m
f/2f/3.120.0 m
f/2.8f/4.314.3 m
f/4f/6.110.0 m
f/5.6f/8.67.16 m
f/8f/12.25.02 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 length500 rule
9 mm (14 mm eq.)36.4 s
13 mm (20 mm eq.)25.2 s
16 mm (24 mm eq.)20.5 s
23 mm (35 mm eq.)14.2 s
33 mm (50 mm eq.)9.9 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 lengthNo stabilisation (1/equiv. focal)With 3-stop ISWith 5-stop IBIS
16 mm1/25 s0.3 s1.3 s
33 mm1/50 s1/6 s0.6 s
65 mm1/100 s1/13 s0.3 s
131 mm1/200 s1/25 s1/6 s

Frequently asked questions#

What is the crop factor of the Sony Alpha 380?

The Sony Alpha 380 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 Sony Alpha 380 sensor?

23.6 × 15.7 mm (APS-C), an area of 369 mm² — 43% of full frame.

Is the Sony Alpha 380 full frame?

No — its sensor is APS-C, which is 2.3× smaller in area than full frame.

What lens mount does the Sony Alpha 380 use?

The Sony Alpha 380 uses the Sony / Minolta A-mount (flange distance 44.50 mm).

How long can I expose the night sky with the Sony Alpha 380?

With a 13 mm lens (20 mm equivalent) the 500 rule gives 25 s.

Sources & licences#

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

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