Compact

Panasonic Lumix DMC-LZ20

The Panasonic Lumix DMC-LZ20 is a compact with a 1/2.3" sensor measuring 6.1 × 4.6 mm and 16.1 megapixels. Its crop factor is 5.69×, so a 50 mm lens frames like 285 mm on full frame. Every number below is calculated for this exact sensor.

1/2.3"5.69× crop16.1 MP
5.69×
Crop factor
6.1×4.6 mm
Sensor size
28 mm²
Area · 3% of full frame
16.1 MP
Resolution
1.31 µm
Pixel pitch
f/2.0
Diffraction-limited aperture

Specifications#

Model
Lumix DMC-LZ20
Also known as
DMC-LZ20
Camera type
Compact
Sensor size
6.1 × 4.6 mm (1/2.3" sensor)
Crop factor
5.69×
Resolution
16.1 MP (4,633 × 3,475 px)
Fastest shutter
1/2,000 s
Weight
499 g (17.6 oz)
Sensor type
CCD
AF points / area
Normal: Wide 30cm - Infinity / Tele 200 cm - infinity / AF Macro / Intelligent Auto / motion picture Wide 2cm - Infinity /Tele 60cm - infinity
Flash
built-in
Battery
AA Battery/Ni-MH Battery x 4
Dimensions
119.1 x 76.5 x 79.8 mm

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

Sensor size compared#

1" (one-inch) sensorPanasonic Lumix DMC-LZ20
The Panasonic Lumix DMC-LZ20 sensor (highlighted) drawn to scale against common formats. Its area is 3% of a full-frame sensor, which collects about 5.0 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 5.69 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 mm23 mm74.5°59.4°87.1°
4.5 mm26 mm68.1°53.7°80.4°
5 mm28 mm62.6°49.0°74.5°
6 mm34 mm53.7°41.6°64.7°
8 mm46 mm41.6°31.8°50.8°
10 mm57 mm33.8°25.7°41.6°
12 mm68 mm28.4°21.5°35.1°
15 mm85 mm22.9°17.3°28.4°
20 mm114 mm17.3°13.0°21.5°
25 mm142 mm13.9°10.4°17.3°
30 mm171 mm11.6°8.7°14.4°
40 mm228 mm8.7°6.5°10.9°
50 mm285 mm7.0°5.2°8.7°
70 mm399 mm5.0°3.7°6.2°
100 mm569 mm3.5°2.6°4.4°
150 mm854 mm2.3°1.7°2.9°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 5.3 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
4 mmf/236.6 cm2.30 m∞∞∞∞1.52 m
4 mmf/2.857.8 cm11.7 m∞∞∞∞1.09 m
4 mmf/41.14 m∞∞∞∞∞76.3 cm
4 mmf/8∞∞∞∞∞∞38.4 cm
8 mmf/28.2 cm33.6 cm1.47 m3.90 m25.4 m∞6.08 m
8 mmf/2.811.5 cm48.3 cm2.33 m7.90 m∞∞4.35 m
8 mmf/416.6 cm73.2 cm4.61 m204 m∞∞3.04 m
8 mmf/836.2 cm2.28 m∞∞∞∞1.53 m
14 mmf/22.6 cm10.6 cm43.2 cm98.9 cm2.89 m15.1 m18.6 m
14 mmf/2.83.7 cm14.9 cm61.2 cm1.42 m4.37 m34.6 m13.3 m
14 mmf/45.2 cm21.4 cm89.5 cm2.15 m7.53 m∞9.31 m
14 mmf/810.6 cm44.4 cm2.09 m6.56 m∞∞4.66 m
22 mmf/21.0 cm4.3 cm17.3 cm39.1 cm1.10 m4.56 m45.9 m
22 mmf/2.81.5 cm6.0 cm24.2 cm54.9 cm1.55 m6.70 m32.8 m
22 mmf/42.1 cm8.5 cm34.7 cm79.1 cm2.27 m10.7 m23.0 m
22 mmf/84.2 cm17.2 cm71.0 cm1.67 m5.34 m71.0 m11.5 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 8 mm
f/1.2f/6.810.1 m
f/1.4f/8.08.68 m
f/1.8f/10.26.76 m
f/2f/11.46.08 m
f/2.8f/15.94.35 m
f/4f/22.83.04 m
f/5.6f/31.92.18 m
f/8f/45.51.53 m

Diffraction & pixel pitch#

With 1.31 µm pixels, diffraction starts to soften pixel-level detail around f/2.0. For maximum sharpness keep landscapes between f/2.8 and f/2; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm2.9 pxslight softening
f/45.4 µm4.1 pxvisibly soft
f/5.67.5 µm5.7 pxvisibly soft
f/810.7 µm8.2 pxvisibly soft
f/1114.8 µm11.2 pxvisibly soft
f/1621.5 µm16.4 pxvisibly soft
f/2229.5 µm22.5 pxvisibly soft

Maximum print sizes#

At 16.1 MP the Panasonic Lumix DMC-LZ20 produces 4,633 × 3,475 pixel images. See the 16 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality15.4 × 11.6 in39 × 29 cm
240 DPIFine-art inkjet19.3 × 14.5 in49 × 37 cm
200 DPIWall print23.2 × 17.4 in59 × 44 cm
150 DPIPoster, viewed from 1 m+30.9 × 23.2 in78 × 59 cm

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.

Focal length500 ruleNPF f/1.8NPF f/2.8NPF f/4
4 mm (23 mm eq.)22.0 s25.6 s34.3 s44.8 s
5 mm (28 mm eq.)17.6 s20.5 s27.5 s35.9 s
6 mm (34 mm eq.)14.6 s17.1 s22.9 s29.9 s
7 mm (40 mm eq.)12.5 s14.6 s19.6 s25.6 s
9 mm (51 mm eq.)9.8 s11.4 s15.3 s19.9 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
4 mm1/25 s0.3 s1.3 s
9 mm1/50 s1/6 s0.6 s
18 mm1/100 s1/13 s0.3 s
35 mm1/200 s1/25 s1/6 s

Lens#

The Panasonic Lumix DMC-LZ20 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 × 5.69.

Frequently asked questions#

What is the crop factor of the Panasonic Lumix DMC-LZ20?

The Panasonic Lumix DMC-LZ20 has a crop factor of 5.69× relative to 35 mm full frame (diagonal 7.6 mm vs 43.3 mm).

What size is the Panasonic Lumix DMC-LZ20 sensor?

6.1 × 4.6 mm (1/2.3"), an area of 28 mm² — 3% of full frame.

Is the Panasonic Lumix DMC-LZ20 full frame?

No — its sensor is 1/2.3", which is 31.2× smaller in area than full frame.

How many megapixels does the Panasonic Lumix DMC-LZ20 have?

16.1 megapixels (4,633 × 3,475 pixels), enough for a 15 × 12 inch print at 300 DPI.

How long can I expose the night sky with the Panasonic Lumix DMC-LZ20?

With a 5 mm lens (28 mm equivalent) the 500 rule gives 18 s and the stricter NPF rule at f/2.8 gives 27 s.

Sources & licences#

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