Large-sensor compact

Panasonic Lumix DMC-GM1

The Panasonic Lumix DMC-GM1 is a large-sensor compact with a Four Thirds / Micro Four Thirds sensor measuring 17.3 × 13.0 mm and 16.8 megapixels. Its crop factor is 2.00×, so a 50 mm lens frames like 100 mm on full frame. Every number below is calculated for this exact sensor.

Four Thirds / Micro Four Thirds2.00× crop16.8 MP
Panasonic Lumix DMC-GM1 camera
Photo: Petar Milošević, CC BY-SA 4.0, via Wikimedia Commons
2.00×
Crop factor
17.3×13.0 mm
Sensor size
225 mm²
Area · 26% of full frame
16.8 MP
Resolution
3.77 µm
Pixel pitch
f/5.6
Diffraction-limited aperture

Specifications#

Model
Lumix DMC-GM1
Sensor size
17.3 × 13.0 mm (Four Thirds / Micro Four Thirds)
Crop factor
2.00×
Resolution
16.8 MP (4,592 × 3,448 px)
Max video resolution
1080p
Weight
204 g (7.2 oz)
Sensor
4/3 type CMOS
Storage
SD /SDHC / SDXC
Exposure modes
Aperture priority, Shutter, Program AE, Manual, iAuto, SCN, Movie, Custom (2)
Shutter
Electronically-controlled focal-plane shutter / electronic shutter
Flash
Built-in flash
Battery
680 mAh 7.2v Lithium-Ion rechargeable battery
Dimensions
98.5 mm × 54.9 mm × 30.4 mm (3.88 × 2.16 × 1.20 inches)
Lens
Micro Four Thirds system mount
Drive
7 RAW images
Video
AVCHD 1080p (24p, 25p, 50i, 50p fps), MP4 720p (25p, 50p fps), VGA 480p (25p fps)

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

Sensor size compared#

Full frame (35 mm)APS-CPanasonic Lumix DMC-GM11" (one-inch) sensor1/2.3" sensor
The Panasonic Lumix DMC-GM1 sensor (highlighted) drawn to scale against common formats. Its area is 26% of a full-frame sensor, which collects about 1.9 stops less total light at the same exposure.

Focal length equivalents & field of view#

Multiply any focal length by 2.00 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 mm16 mm94.5°78.2°107.0°
10 mm20 mm81.7°66.0°94.5°
12 mm24 mm71.6°56.9°84.1°
14 mm28 mm63.4°49.8°75.4°
16 mm32 mm56.8°44.2°68.1°
18 mm36 mm51.3°39.7°62.0°
20 mm40 mm46.8°36.0°56.8°
24 mm48 mm39.6°30.3°48.5°
28 mm56 mm34.3°26.1°42.3°
35 mm70 mm27.8°21.0°34.4°
40 mm80 mm24.4°18.5°30.3°
50 mm100 mm19.6°14.8°24.4°
56 mm112 mm17.6°13.2°21.9°
70 mm140 mm14.1°10.6°17.6°
85 mm170 mm11.6°8.7°14.5°
100 mm200 mm9.9°7.4°12.4°
135 mm270 mm7.3°5.5°9.2°
200 mm400 mm5.0°3.7°6.2°
300 mm600 mm3.3°2.5°4.1°
400 mm800 mm2.5°1.9°3.1°
600 mm1200 mm1.7°1.2°2.1°

Depth of field table#

Total depth of field at each subject distance, using a circle of confusion of 15.0 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
11 mmf/1.811.0 cm46.4 cm2.21 m7.21 m∞∞4.49 m
11 mmf/2.817.5 cm77.9 cm5.28 m∞∞∞2.89 m
11 mmf/425.8 cm1.29 m148 m∞∞∞2.03 m
11 mmf/863.4 cm52.5 m∞∞∞∞1.02 m
22 mmf/1.82.7 cm10.9 cm44.7 cm1.03 m3.01 m16.1 m17.9 m
22 mmf/2.84.2 cm17.1 cm70.8 cm1.66 m5.31 m69.3 m11.5 m
22 mmf/45.9 cm24.6 cm1.04 m2.57 m9.97 m∞8.09 m
22 mmf/812.0 cm51.5 cm2.58 m9.75 m∞∞4.05 m
37 mmf/1.80.9 cm3.8 cm15.5 cm35.2 cm98.9 cm4.09 m50.7 m
37 mmf/2.81.4 cm5.9 cm24.2 cm55.0 cm1.56 m6.75 m32.6 m
37 mmf/42.0 cm8.5 cm34.7 cm79.3 cm2.28 m10.8 m22.8 m
37 mmf/84.1 cm17.0 cm71.0 cm1.67 m5.37 m73.8 m11.4 m
62 mmf/1.80.3 cm1.3 cm5.4 cm12.4 cm34.7 cm1.40 m142 m
62 mmf/2.80.5 cm2.1 cm8.5 cm19.3 cm54.1 cm2.20 m91.6 m
62 mmf/40.7 cm2.9 cm12.1 cm27.6 cm77.6 cm3.18 m64.1 m
62 mmf/81.4 cm5.9 cm24.3 cm55.5 cm1.58 m6.87 m32.1 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 22 mm
f/1.2f/2.426.9 m
f/1.4f/2.823.1 m
f/1.8f/3.617.9 m
f/2f/4.016.2 m
f/2.8f/5.611.5 m
f/4f/8.08.09 m
f/5.6f/11.25.78 m
f/8f/16.04.05 m

Diffraction & pixel pitch#

With 3.77 µm pixels, diffraction starts to soften pixel-level detail around f/5.6. For maximum sharpness keep landscapes between f/3.1 and f/6; stopping down further trades detail for depth of field.

ApertureAiry disk diameterSpread overAt 100% view
f/2.83.8 µm1.0 pxsharp
f/45.4 µm1.4 pxsharp
f/5.67.5 µm2.0 pxsharp
f/810.7 µm2.8 pxslight softening
f/1114.8 µm3.9 pxvisibly soft
f/1621.5 µm5.7 pxvisibly soft
f/2229.5 µm7.8 pxvisibly soft

Maximum print sizes#

At 16.8 MP the Panasonic Lumix DMC-GM1 produces 4,592 × 3,448 pixel images. See the 16 megapixel guide or the print size calculator.

ResolutionTypical useInchesCentimetres
300 DPIPhoto-lab quality15.3 × 11.5 in39 × 29 cm
240 DPIFine-art inkjet19.1 × 14.4 in49 × 36 cm
200 DPIWall print23.0 × 17.2 in58 × 44 cm
150 DPIPoster, viewed from 1 m+30.6 × 23.0 in78 × 58 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
7 mm (14 mm eq.)35.7 s25.1 s30.1 s36.1 s
10 mm (20 mm eq.)25.0 s17.6 s21.1 s25.3 s
12 mm (24 mm eq.)20.8 s14.7 s17.6 s21.1 s
18 mm (36 mm eq.)13.9 s9.8 s11.7 s14.1 s
25 mm (50 mm eq.)10.0 s7.0 s8.4 s10.1 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
12 mm1/25 s0.3 s1.3 s
25 mm1/50 s1/6 s0.6 s
50 mm1/100 s1/13 s0.3 s
100 mm1/200 s1/25 s1/6 s

Lens#

The Panasonic Lumix DMC-GM1 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 × 2.00.

Frequently asked questions#

What is the crop factor of the Panasonic Lumix DMC-GM1?

The Panasonic Lumix DMC-GM1 has a crop factor of 2.00× relative to 35 mm full frame (diagonal 21.6 mm vs 43.3 mm).

What size is the Panasonic Lumix DMC-GM1 sensor?

17.3 × 13.0 mm (Four Thirds / Micro Four Thirds), an area of 225 mm² — 26% of full frame.

Is the Panasonic Lumix DMC-GM1 full frame?

No — its sensor is Four Thirds / Micro Four Thirds, which is 3.8× smaller in area than full frame.

How many megapixels does the Panasonic Lumix DMC-GM1 have?

16.8 megapixels (4,592 × 3,448 pixels), enough for a 15 × 11 inch print at 300 DPI.

How long can I expose the night sky with the Panasonic Lumix DMC-GM1?

With a 10 mm lens (20 mm equivalent) the 500 rule gives 25 s and the stricter NPF rule at f/2.8 gives 21 s.

Sources & licences#

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