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Panasonic DMC-GM1

Panasonic · Micro 4/3 System · 2.00× crop

The Panasonic DMC-GM1 uses the Micro 4/3 System mount with a 2.00× crop factor (about 17.3 × 13.0 mm sensor). Below: equivalent focal lengths, maximum shutter speeds for sharp stars, a hyperfocal distance chart, compatible lenses and how to check the shutter count.

Mount
Micro 4/3 System
Crop factor
2.00×
Sensor (approx.)
17.3 × 13.0 mm
Circle of confusion
0.015 mm

Equivalent focal length & field of view

Lens focal lengthFull-frame equivalentDiagonal FOVHorizontal FOV
8 mm16 mm107.0°94.5°
10 mm20 mm94.5°81.7°
12 mm24 mm84.1°71.6°
14 mm28 mm75.4°63.4°
16 mm32 mm68.1°56.8°
18 mm36 mm62.0°51.3°
20 mm40 mm56.8°46.8°
24 mm48 mm48.5°39.6°
28 mm56 mm42.3°34.3°
35 mm70 mm34.4°27.8°
50 mm100 mm24.4°19.6°
85 mm170 mm14.5°11.6°
135 mm270 mm9.2°7.3°
200 mm400 mm6.2°5.0°
300 mm600 mm4.1°3.3°
400 mm800 mm3.1°2.5°

Multiply by the 2.00× crop factor for the full-frame equivalent field of view.

Milky Way exposure: NPF and 500 rule

Focal lengthNPF @ f/1.8NPF @ f/2.8Strict NPF @ f/2.8500 rule
8 mm20.2 s24.6 s13.3 s31.2 s
10 mm16.2 s19.7 s10.7 s25.0 s
12 mm13.5 s16.4 s8.9 s20.8 s
14 mm11.6 s14.1 s7.7 s17.9 s
16 mm10.1 s12.3 s6.7 s15.6 s
18 mm9.0 s10.9 s6.0 s13.9 s
20 mm8.1 s9.8 s5.4 s12.5 s
24 mm6.8 s8.2 s4.5 s10.4 s
28 mm5.8 s7.0 s3.9 s8.9 s
35 mm4.6 s5.6 s3.1 s7.1 s

NPF = (35 × f-number + 30 × pixel pitch) ÷ focal length, with a pixel pitch of 3.3 µm (typical for this format — exact resolution not in our database). The strict version (Michaud's detailed NPF for the galactic core) gives pin-point stars at 100% view; the 500 rule is a loose rule of thumb that shows trailing on modern sensors.

Hyperfocal distance chart

Focal lengthf/2.8f/5.6f/8f/11f/16
10 mm2.4 m1.2 m0.8 m0.6 m0.4 m
14 mm4.7 m2.3 m1.6 m1.2 m0.8 m
16 mm6.1 m3.1 m2.1 m1.6 m1.1 m
18 mm7.7 m3.9 m2.7 m2.0 m1.4 m
20 mm9.5 m4.8 m3.4 m2.4 m1.7 m
24 mm14 m6.9 m4.8 m3.5 m2.4 m
28 mm19 m9.4 m6.6 m4.8 m3.3 m
35 mm29 m15 m10 m7.5 m5.1 m

Focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp (circle of confusion 0.015 mm). Use the hyperfocal calculator for other settings.

Compatible lenses (120 in our database)

LensFocal lengthMax apertureMount
Panasonic Lumix G Vario 7-14mm f/4.0 Asph.7–14 mmf/4Micro 4/3 System
Panasonic Leica DG Vario-Elmarit 8-18mm f/2.8-4 Asph.8–18 mmf/2.8Micro 4/3 System
Panasonic Leica DG Summilux 9mm f/1.7 Asph.9 mmf/1.7Micro 4/3 System
Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 Asph.10–25 mmf/1.7Micro 4/3 System
Panasonic Lumix G Vario 12-60mm f/3.5-5.6 Asph. Power OIS12–60 mmf/3.5Micro 4/3 System
Panasonic Lumix G X Vario 12-35mm f/2.8 Asph. Power OIS12–35 mmf/2.8Micro 4/3 System
Panasonic Lumix G X Vario 12-35mm f/2.8 II Asph. Power OIS12–35 mmf/2.8Micro 4/3 System
Panasonic Lumix G Vario 12-32mm f/3.5-5.6 Asph. Mega OIS12–32 mmf/3.5Micro 4/3 System
Panasonic Leica DG Vario-Elmarit 12-60mm f/2.8-4.0 Asph. Power OIS12–60 mmf/2.8Micro 4/3 System
Panasonic Lumix G 14mm f/2.5 Asph.14 mmf/2.5Micro 4/3 System
Panasonic Lumix G 14mm f/2.5 Asph. + GWC1 0.79×14 mmf/2.5Micro 4/3 System
Panasonic Lumix G X Vario PZ 14-42mm f/3.5-5.6 Asph. Power OIS14–42 mmf/3.5Micro 4/3 System
Panasonic Lumix G Vario 14-42mm f/3.5-5.6 II Asph. Mega OIS14–42 mmf/3.5Micro 4/3 System
Panasonic Lumix G X Vario PZ 14-42mm f/3.5-5.6 Asph. Power OIS + GWC1 0.79×14–42 mmf/3.5Micro 4/3 System
Panasonic Lumix G Vario 14-45mm f/3.5-5.6 Asph. Mega OIS14–45 mmf/3.5Micro 4/3 System
Panasonic Lumix G Vario HD 14-140mm f/4.0-5.8 Asph. Mega OIS14–140 mmf/4Micro 4/3 System
Panasonic Lumix G 14mm f/2.5 II Asph.14 mmf/2.5Micro 4/3 System
Panasonic Lumix G Vario 14-140mm f/3.5-5.6 Asph. Power OIS14–140 mmf/3.5Micro 4/3 System
Panasonic Lumix G Vario 14-140mm f/3.5-5.6 Asph. II Power OIS14–140 mmf/3.5Micro 4/3 System
Panasonic Leica DG Summilux 15mm f/1.7 Asph.15 mmf/1.7Micro 4/3 System
Panasonic Lumix G 20mm f/1.7 Asph.20 mmf/1.7Micro 4/3 System
Panasonic Lumix G 20mm f/1.7 II Asph.20 mmf/1.7Micro 4/3 System
Panasonic Leica DG Summilux 25mm f/1.4 Asph.25 mmf/1.4Micro 4/3 System
Panasonic Leica DG Summilux 25mm f/1.4 II25 mmf/1.4Micro 4/3 System
Panasonic Lumix G 25mm f/1.7 Asph.25 mmf/1.7Micro 4/3 System
Panasonic Leica D Summilux 25mm f/1.4 Asph.25 mmf/1.4Micro 4/3 System
Panasonic Lumix G Macro 30mm f/2.8 Asph. Mega OIS30 mmf/2.8Micro 4/3 System
Panasonic Lumix G X Vario 35-100mm f/2.8 Power OIS35–100 mmf/2.8Micro 4/3 System
Panasonic Lumix G X Vario 35-100mm f/2.8 II Power OIS35–100 mmf/2.8Micro 4/3 System
Panasonic Lumix G Vario 35-100mm f/4.0-5.6 Asph. Mega OIS35–100 mmf/4Micro 4/3 System
Panasonic Leica DG Nocticron 42.5mm f/1.2 Asph. Power OIS42 mmf/1.2Micro 4/3 System
Panasonic Lumix G 42.5mm f/1.7 Asph. Power OIS42 mmf/1.7Micro 4/3 System
Panasonic Lumix G Vario 45-200mm f/4.0-5.6 Mega OIS45–200 mmf/4Micro 4/3 System
Panasonic Lumix G Vario 45-200mm f/4.0-5.6 II Power OIS45–200 mmf/4Micro 4/3 System
Panasonic Lumix G Vario 45-150mm f/4.0-5.6 Asph. Mega OIS45–150 mmf/4Micro 4/3 System
Panasonic Leica DG Macro-Elmarit 45mm f/2.8 Asph. Mega OIS45 mmf/2.8Micro 4/3 System
Panasonic Lumix G X Vario PZ 45-175mm f/4.0-5.6 Asph. Power OIS45–175 mmf/4Micro 4/3 System
Panasonic Leica DG Vario-Elmarit 50-200mm f/2.8-4 Asph. OIS50–200 mmf/2.8Micro 4/3 System
Panasonic Lumix G Vario 100-300mm f/4.0-5.6 Mega OIS100–300 mmf/4Micro 4/3 System
Panasonic Lumix G Vario 100-300mm f/4-5.6 II Power OIS100–300 mmf/4Micro 4/3 System

Native and adapter-free compatible lenses from the Lensfun database. Third-party and adapted lenses may also work.

How to check the Panasonic DMC-GM1 shutter count

Panasonic Lumix cameras show a shutter counter in a hidden service menu on many models; EXIF tools rarely expose it.

ExifTool tag: (service menu). Always test an original, unedited file straight from the card.

Where to buy

Compare new and used prices at these retailers:

B&H PhotoAmazonKEH (used)MPB (used)

Other Micro 4/3 System cameras

FAQ

What is the crop factor of the Panasonic DMC-GM1?
2.00×. A 24 mm lens frames like a 48 mm lens on full frame.
What shutter speed should I use for the Milky Way with the Panasonic DMC-GM1?
With a 8 mm lens at f/2.8, about 25 seconds keeps stars sharp (NPF rule).
How do I check the shutter count on the Panasonic DMC-GM1?
Panasonic Lumix cameras show a shutter counter in a hidden service menu on many models; EXIF tools rarely expose it.
Which lenses fit the Panasonic DMC-GM1?
Lenses for the Micro 4/3 System mount — 120 are listed above.