Bridge camera

Panasonic Lumix DMC-FZ18

The Panasonic Lumix DMC-FZ18 is a bridge camera with a 1/2.5" sensor measuring 5.7 × 4.2 mm and 10 megapixels. Its crop factor is 6.10×, so a 50 mm lens frames like 305 mm on full frame. Every number below is calculated for this exact sensor.

1/2.5"6.10× crop10 MP
Panasonic Lumix DMC-FZ18 camera
Photo: Rasbak, CC BY-SA 3.0, via Wikimedia Commons
6.10×
Crop factor
5.7×4.2 mm
Sensor size
24 mm²
Area · 3% of full frame
10 MP
Resolution
1.76 µm
Pixel pitch
f/2.6
Diffraction-limited aperture

Specifications#

Model
Lumix DMC-FZ18
Also known as
DMC-FZ18
Camera type
Bridge camera
Sensor size
5.7 × 4.2 mm (1/2.5" sensor)
Crop factor
6.10×
Resolution
10 MP (3,264 × 2,448 px)
ISO range
100 – 1,600
Weight
360 g (12.7 oz)
Sensor
1/2.5" CCD
Storage
SD, SDHC, MultiMediaCard, internal
Viewfinder
EVF 0.44 in color LCD (188,000 pixels) or 2.5 in color LCD (230,000 pixels)
Exposure modes
Manual, Program, Automatic, Shutter Priority, Aperture Priority
Flash
Built-in pop up; Range: 0.3 - 4 meters
Battery
Li-Ion 7.2 V, 710 mAh
Lens
28-504 mm (18x optical zoom) F2.8-F4.2
Drive
3.0

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

Sensor size compared#

1/2.3" sensorPanasonic Lumix DMC-FZ18
The Panasonic Lumix DMC-FZ18 sensor (highlighted) drawn to scale against common formats. Its area is 3% of a full-frame sensor, which collects about 5.2 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 6.10 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 mm24 mm71.3°54.9°83.1°
4.5 mm27 mm65.1°49.6°76.5°
5 mm31 mm59.7°45.2°70.7°
6 mm37 mm51.1°38.2°61.1°
8 mm49 mm39.5°29.1°47.8°
10 mm61 mm32.0°23.5°39.0°
12 mm73 mm26.9°19.7°32.9°
15 mm92 mm21.7°15.8°26.6°
20 mm122 mm16.3°11.9°20.1°
25 mm153 mm13.1°9.5°16.1°
30 mm183 mm10.9°7.9°13.5°
40 mm244 mm8.2°6.0°10.1°
50 mm305 mm6.6°4.8°8.1°
70 mm427 mm4.7°3.4°5.8°
100 mm610 mm3.3°2.4°4.1°
150 mm916 mm2.2°1.6°2.7°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 4.9 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
4 mmf/233.6 cm1.96 m∞∞∞∞1.63 m
4 mmf/2.852.2 cm6.44 m∞∞∞∞1.17 m
4 mmf/497.0 cm∞∞∞∞∞81.8 cm
4 mmf/8∞∞∞∞∞∞41.1 cm
7 mmf/210.0 cm41.5 cm1.90 m5.63 m∞∞4.99 m
7 mmf/2.814.1 cm60.5 cm3.26 m17.2 m∞∞3.57 m
7 mmf/420.6 cm94.7 cm8.87 m∞∞∞2.50 m
7 mmf/846.9 cm4.37 m∞∞∞∞1.25 m
12 mmf/23.3 cm13.6 cm55.3 cm1.28 m3.85 m25.5 m14.7 m
12 mmf/2.84.7 cm19.1 cm78.8 cm1.87 m6.17 m215 m10.5 m
12 mmf/46.7 cm27.5 cm1.17 m2.94 m12.7 m∞7.34 m
12 mmf/813.6 cm58.2 cm3.08 m14.6 m∞∞3.67 m
20 mmf/21.2 cm4.8 cm19.5 cm44.2 cm1.24 m5.22 m40.7 m
20 mmf/2.81.7 cm6.8 cm27.4 cm62.2 cm1.77 m7.79 m29.1 m
20 mmf/42.4 cm9.7 cm39.3 cm89.8 cm2.60 m12.9 m20.4 m
20 mmf/84.7 cm19.4 cm80.9 cm1.92 m6.44 m524 m10.2 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 7 mm
f/1.2f/7.38.31 m
f/1.4f/8.57.13 m
f/1.8f/11.05.55 m
f/2f/12.24.99 m
f/2.8f/17.13.57 m
f/4f/24.42.50 m
f/5.6f/34.21.79 m
f/8f/48.81.25 m

Diffraction & pixel pitch#

With 1.76 µm pixels, diffraction starts to soften pixel-level detail around f/2.6. For maximum sharpness keep landscapes between f/2.8 and f/3; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm2.1 pxslight softening
f/45.4 µm3.1 pxvisibly soft
f/5.67.5 µm4.3 pxvisibly soft
f/810.7 µm6.1 pxvisibly soft
f/1114.8 µm8.4 pxvisibly soft
f/1621.5 µm12.2 pxvisibly soft
f/2229.5 µm16.8 pxvisibly soft

Maximum print sizes#

At 10 MP the Panasonic Lumix DMC-FZ18 produces 3,264 × 2,448 pixel images. See the 10 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality10.9 × 8.2 in28 × 21 cm
240 DPIFine-art inkjet13.6 × 10.2 in35 × 26 cm
200 DPIWall print16.3 × 12.2 in41 × 31 cm
150 DPIPoster, viewed from 1 m+21.8 × 16.3 in55 × 41 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 (24 mm eq.)20.5 s28.9 s37.7 s48.2 s
5 mm (31 mm eq.)16.4 s23.2 s30.2 s38.6 s
6 mm (37 mm eq.)13.7 s19.3 s25.1 s32.1 s
7 mm (43 mm eq.)11.7 s16.5 s21.5 s27.5 s
8 mm (49 mm eq.)10.2 s14.5 s18.8 s24.1 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
8 mm1/50 s1/6 s0.6 s
16 mm1/100 s1/13 s0.3 s
33 mm1/200 s1/25 s1/6 s

Lens#

The Panasonic Lumix DMC-FZ18 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 × 6.10.

Frequently asked questions#

What is the crop factor of the Panasonic Lumix DMC-FZ18?

The Panasonic Lumix DMC-FZ18 has a crop factor of 6.10× relative to 35 mm full frame (diagonal 7.1 mm vs 43.3 mm).

What size is the Panasonic Lumix DMC-FZ18 sensor?

5.7 × 4.2 mm (1/2.5"), an area of 24 mm² — 3% of full frame.

Is the Panasonic Lumix DMC-FZ18 full frame?

No — its sensor is 1/2.5", which is 36.2× smaller in area than full frame.

How many megapixels does the Panasonic Lumix DMC-FZ18 have?

10 megapixels (3,264 × 2,448 pixels), enough for a 11 × 8 inch print at 300 DPI.

How long can I expose the night sky with the Panasonic Lumix DMC-FZ18?

With a 5 mm lens (31 mm equivalent) the 500 rule gives 16 s and the stricter NPF rule at f/2.8 gives 30 s.

Sources & licences#

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