Large-sensor compact · 2014

Sigma dp1 Quattro

The Sigma dp1 Quattro is a large-sensor compact from 2014 with a APS-C sensor measuring 23.5 × 15.7 mm. Its crop factor is 1.53×, so a 50 mm lens frames like 77 mm on full frame. Every number below is calculated for this exact sensor.

APS-C1.53× crop
Sigma dp1 Quattro camera
Photo: Morio, CC BY-SA 3.0, via Wikimedia Commons
1.53×
Crop factor
23.5×15.7 mm
Sensor size
368 mm²
Area · 43% of full frame
2014
Release year

Specifications#

Brand
Sigma
Model
dp1 Quattro
Released
2014-01-01
Sensor size
23.5 × 15.7 mm (APS-C)
Crop factor
1.53×

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

Sensor size compared#

Medium format 44 × 33 mmFull frame (35 mm)Sigma dp1 QuattroFour Thirds / Micro Four Thirds1" (one-inch) sensor
The Sigma dp1 Quattro 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. For fixed-lens cameras use the real focal length printed on the lens (e.g. “6.1–18.3 mm”), not the 35 mm equivalent.

Lens on this cameraFull-frame equivalentHorizontalVerticalDiagonal
8 mm12 mm111.5°88.8°120.9°
10 mm15 mm99.2°76.2°109.4°
12 mm18 mm88.8°66.3°99.3°
14 mm21 mm80.0°58.5°90.5°
16 mm25 mm72.6°52.2°82.9°
18 mm28 mm66.3°47.0°76.2°
20 mm31 mm60.9°42.8°70.5°
24 mm37 mm52.2°36.2°60.9°
28 mm43 mm45.5°31.3°53.5°
35 mm54 mm37.1°25.2°43.9°
40 mm61 mm32.7°22.2°38.9°
50 mm77 mm26.4°17.8°31.5°
56 mm86 mm23.7°15.9°28.3°
70 mm107 mm19.1°12.8°22.8°
85 mm130 mm15.7°10.5°18.9°
100 mm153 mm13.4°9.0°16.1°
135 mm207 mm9.9°6.6°11.9°
200 mm306 mm6.7°4.5°8.1°
300 mm460 mm4.5°3.0°5.4°
400 mm613 mm3.4°2.2°4.0°
600 mm919 mm2.2°1.5°2.7°
800 mm1225 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 cm36.6 cm1.64 m4.53 m45.8 m∞5.57 m
14 mmf/2.813.9 cm59.7 cm3.22 m16.6 m∞∞3.59 m
14 mmf/420.2 cm93.3 cm8.58 m∞∞∞2.52 m
14 mmf/845.8 cm4.16 m∞∞∞∞1.26 m
28 mmf/1.82.1 cm8.8 cm35.7 cm81.6 cm2.35 m11.2 m22.3 m
28 mmf/2.83.3 cm13.7 cm56.2 cm1.30 m3.96 m27.2 m14.3 m
28 mmf/44.7 cm19.6 cm82.0 cm1.95 m6.60 m2.8 km10.0 m
28 mmf/89.5 cm40.4 cm1.87 m5.51 m781 m∞5.03 m
48 mmf/1.80.7 cm2.9 cm12.0 cm27.2 cm76.2 cm3.12 m65.4 m
48 mmf/2.81.1 cm4.5 cm18.6 cm42.4 cm1.20 m5.02 m42.1 m
48 mmf/41.5 cm6.5 cm26.7 cm60.8 cm1.73 m7.64 m29.5 m
48 mmf/83.1 cm13.0 cm54.0 cm1.26 m3.80 m25.0 m14.8 m
78 mmf/1.80.2 cm1.1 cm4.5 cm10.2 cm28.5 cm1.15 m173 m
78 mmf/2.80.4 cm1.7 cm6.9 cm15.8 cm44.5 cm1.80 m111 m
78 mmf/40.5 cm2.4 cm9.9 cm22.6 cm63.6 cm2.60 m77.7 m
78 mmf/81.1 cm4.8 cm19.8 cm45.4 cm1.29 m5.47 m38.9 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/1.833.4 m
f/1.4f/2.128.6 m
f/1.8f/2.822.3 m
f/2f/3.120.0 m
f/2.8f/4.314.3 m
f/4f/6.110.0 m
f/5.6f/8.67.18 m
f/8f/12.35.03 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.)36.3 s
13 mm (20 mm eq.)25.1 s
16 mm (25 mm eq.)20.4 s
23 mm (35 mm eq.)14.2 s
33 mm (51 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

Lens#

The Sigma dp1 Quattro has a built-in, non-interchangeable lens. Use the real focal length of that lens with the tables above; its full-frame equivalent is that number × 1.53.

Frequently asked questions#

What is the crop factor of the Sigma dp1 Quattro?

The Sigma dp1 Quattro has a crop factor of 1.53× relative to 35 mm full frame (diagonal 28.2 mm vs 43.3 mm).

What size is the Sigma dp1 Quattro sensor?

23.5 × 15.7 mm (APS-C), an area of 368 mm² — 43% of full frame.

Is the Sigma dp1 Quattro full frame?

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

How long can I expose the night sky with the Sigma dp1 Quattro?

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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