Compact · 2006

Leica D-Lux 3

The Leica D-Lux 3 is a compact from 2006 with a 1/1.7" sensor measuring 7.8 × 6.3 mm. Its crop factor is 4.33×, so a 50 mm lens frames like 216 mm on full frame. Every number below is calculated for this exact sensor.

1/1.7"4.33× crop
Leica D-Lux 3 camera
Photo: FDV, Public domain, via Wikimedia Commons
4.33×
Crop factor
7.8×6.3 mm
Sensor size
49 mm²
Area · 6% of full frame
2006
Release year

Specifications#

Brand
Leica
Model
D-Lux 3
Camera type
Compact
Released
2006-01-01
Sensor size
7.8 × 6.3 mm (1/1.7" sensor)
Crop factor
4.33×

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

Sensor size compared#

1" (one-inch) sensorLeica D-Lux 31/2.3" sensor
The Leica D-Lux 3 sensor (highlighted) drawn to scale against common formats. Its area is 6% of a full-frame sensor, which collects about 4.1 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 4.33 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
4 mm17 mm88.3°76.4°102.7°
4.5 mm19 mm81.5°70.0°96.0°
5 mm22 mm75.6°64.4°90.0°
6 mm26 mm65.8°55.4°79.6°
8 mm35 mm51.7°43.0°64.0°
10 mm43 mm42.4°35.0°53.1°
12 mm52 mm35.8°29.4°45.2°
15 mm65 mm29.0°23.7°36.9°
20 mm87 mm22.0°17.9°28.1°
25 mm108 mm17.6°14.4°22.6°
30 mm130 mm14.7°12.0°18.9°
40 mm173 mm11.1°9.0°14.2°
50 mm216 mm8.9°7.2°11.4°
70 mm303 mm6.3°5.2°8.2°
100 mm433 mm4.4°3.6°5.7°
150 mm649 mm3.0°2.4°3.8°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 6.9 µm (the 0.030 mm full-frame standard scaled by the crop factor).

FocalAperture50.0 cm1.00 m2.00 m3.00 m5.00 m10.0 mHyperfocal
5 mmf/229.7 cm1.59 m∞∞∞∞1.81 m
5 mmf/2.845.1 cm3.83 m∞∞∞∞1.29 m
5 mmf/478.6 cm∞∞∞∞∞90.7 cm
5 mmf/8∞∞∞∞∞∞45.6 cm
10 mmf/26.8 cm28.0 cm1.19 m3.00 m13.3 m∞7.22 m
10 mmf/2.89.6 cm39.9 cm1.82 m5.25 m155 m∞5.16 m
10 mmf/413.8 cm59.4 cm3.17 m15.9 m∞∞3.62 m
10 mmf/829.3 cm1.57 m∞∞∞∞1.81 m
17 mmf/22.3 cm9.5 cm38.4 cm87.6 cm2.53 m12.4 m20.9 m
17 mmf/2.83.2 cm13.3 cm54.2 cm1.25 m3.77 m24.3 m14.9 m
17 mmf/44.6 cm19.0 cm78.9 cm1.87 m6.20 m231 m10.4 m
17 mmf/89.3 cm39.1 cm1.78 m5.11 m111 m∞5.23 m
28 mmf/20.8 cm3.4 cm14.0 cm31.6 cm88.6 cm3.64 m56.6 m
28 mmf/2.81.2 cm4.8 cm19.6 cm44.4 cm1.25 m5.26 m40.4 m
28 mmf/41.7 cm6.9 cm28.0 cm63.8 cm1.81 m8.05 m28.3 m
28 mmf/83.3 cm13.8 cm56.9 cm1.32 m4.01 m28.1 m14.2 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 10 mm
f/1.2f/5.212.0 m
f/1.4f/6.110.3 m
f/1.8f/7.88.03 m
f/2f/8.77.22 m
f/2.8f/12.15.16 m
f/4f/17.33.62 m
f/5.6f/24.22.59 m
f/8f/34.61.81 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
4 mm (17 mm eq.)28.9 s
5 mm (22 mm eq.)23.1 s
6 mm (26 mm eq.)19.3 s
8 mm (35 mm eq.)14.4 s
12 mm (52 mm eq.)9.6 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 lengthNo stabilisation (1/equiv. focal)With 3-stop ISWith 5-stop IBIS
6 mm1/25 s0.3 s1.3 s
12 mm1/50 s1/6 s0.6 s
23 mm1/100 s1/13 s0.3 s
46 mm1/200 s1/25 s1/6 s

Lens#

The Leica D-Lux 3 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 × 4.33.

Frequently asked questions#

What is the crop factor of the Leica D-Lux 3?

The Leica D-Lux 3 has a crop factor of 4.33× relative to 35 mm full frame (diagonal 10.0 mm vs 43.3 mm).

What size is the Leica D-Lux 3 sensor?

7.8 × 6.3 mm (1/1.7"), an area of 49 mm² — 6% of full frame.

Is the Leica D-Lux 3 full frame?

No — its sensor is 1/1.7", which is 17.7× smaller in area than full frame.

How long can I expose the night sky with the Leica D-Lux 3?

With a 5 mm lens (22 mm equivalent) the 500 rule gives 23 s.

Sources & licences#

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