Compact

Leica D-Lux (Typ 109)

The Leica D-Lux (Typ 109) is a compact with a Four Thirds / Micro Four Thirds sensor measuring 17.3 × 9.2 mm. Its crop factor is 2.21×, so a 50 mm lens frames like 111 mm on full frame. Every number below is calculated for this exact sensor.

Four Thirds / Micro Four Thirds2.21× crop
2.21×
Crop factor
17.3×9.2 mm
Sensor size
158 mm²
Area · 18% of full frame

Specifications#

Brand
Leica
Model
D-Lux (Typ 109)
Camera type
Compact
Sensor size
17.3 × 9.2 mm (Four Thirds / Micro Four Thirds)
Crop factor
2.21×

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

Sensor size compared#

APS-CLeica D-Lux (Typ 109)1" (one-inch) sensor1/2.3" sensor
The Leica D-Lux (Typ 109) sensor (highlighted) drawn to scale against common formats. Its area is 18% of a full-frame sensor, which collects about 2.4 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 2.21 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 mm18 mm94.5°59.6°101.5°
10 mm22 mm81.7°49.2°88.8°
12 mm27 mm71.6°41.8°78.4°
14 mm31 mm63.4°36.2°69.9°
16 mm35 mm56.8°31.9°62.9°
18 mm40 mm51.3°28.6°57.1°
20 mm44 mm46.8°25.8°52.2°
24 mm53 mm39.6°21.6°44.4°
28 mm62 mm34.3°18.6°38.5°
35 mm77 mm27.8°14.9°31.2°
40 mm88 mm24.4°13.1°27.5°
50 mm111 mm19.6°10.5°22.2°
56 mm124 mm17.6°9.4°19.8°
70 mm155 mm14.1°7.5°15.9°
85 mm188 mm11.6°6.2°13.1°
100 mm221 mm9.9°5.2°11.2°
135 mm298 mm7.3°3.9°8.3°
200 mm442 mm5.0°2.6°5.6°
300 mm663 mm3.3°1.7°3.7°
400 mm884 mm2.5°1.3°2.8°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 13.6 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
10 mmf/1.812.1 cm51.4 cm2.55 m9.40 m∞∞4.10 m
10 mmf/2.819.3 cm87.7 cm7.07 m∞∞∞2.64 m
10 mmf/428.6 cm1.51 m∞∞∞∞1.85 m
10 mmf/874.2 cm∞∞∞∞∞93.1 cm
20 mmf/1.82.9 cm12.0 cm49.1 cm1.13 m3.35 m19.4 m16.4 m
20 mmf/2.84.6 cm18.8 cm78.0 cm1.85 m6.10 m188 m10.5 m
20 mmf/46.5 cm27.1 cm1.16 m2.90 m12.4 m∞7.39 m
20 mmf/813.3 cm57.3 cm3.02 m14.0 m∞∞3.70 m
34 mmf/1.81.0 cm4.1 cm16.6 cm37.8 cm1.06 m4.41 m47.3 m
34 mmf/2.81.5 cm6.4 cm26.0 cm59.1 cm1.68 m7.34 m30.5 m
34 mmf/42.2 cm9.1 cm37.3 cm85.2 cm2.47 m12.0 m21.3 m
34 mmf/84.4 cm18.3 cm76.5 cm1.81 m5.96 m151 m10.7 m
56 mmf/1.80.3 cm1.5 cm6.1 cm13.8 cm38.6 cm1.56 m128 m
56 mmf/2.80.5 cm2.3 cm9.4 cm21.4 cm60.1 cm2.45 m82.6 m
56 mmf/40.8 cm3.3 cm13.5 cm30.7 cm86.2 cm3.55 m57.8 m
56 mmf/81.5 cm6.5 cm27.0 cm61.8 cm1.76 m7.81 m28.9 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 20 mm
f/1.2f/2.724.6 m
f/1.4f/3.121.1 m
f/1.8f/4.016.4 m
f/2f/4.414.8 m
f/2.8f/6.210.5 m
f/4f/8.87.39 m
f/5.6f/12.45.28 m
f/8f/17.73.70 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
6 mm (13 mm eq.)37.7 s
9 mm (20 mm eq.)25.1 s
11 mm (24 mm eq.)20.6 s
16 mm (35 mm eq.)14.1 s
23 mm (51 mm eq.)9.8 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
11 mm1/25 s0.3 s1.3 s
23 mm1/50 s1/6 s0.6 s
45 mm1/100 s1/13 s0.3 s
90 mm1/200 s1/25 s1/6 s

Lens#

The Leica D-Lux (Typ 109) 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 × 2.21.

Frequently asked questions#

What is the crop factor of the Leica D-Lux (Typ 109)?

The Leica D-Lux (Typ 109) has a crop factor of 2.21× relative to 35 mm full frame (diagonal 19.6 mm vs 43.3 mm).

What size is the Leica D-Lux (Typ 109) sensor?

17.3 × 9.2 mm (Four Thirds / Micro Four Thirds), an area of 158 mm² — 18% of full frame.

Is the Leica D-Lux (Typ 109) full frame?

No — its sensor is Four Thirds / Micro Four Thirds, which is 5.5× smaller in area than full frame.

How long can I expose the night sky with the Leica D-Lux (Typ 109)?

With a 9 mm lens (20 mm equivalent) the 500 rule gives 25 s.

Sources & licences#

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