Specifications#
- Brand
- Panasonic
- Model
- Lumix DMC-CM1
- Camera type
- Large-sensor compact
- Sensor size
- 12.8 × 9.6 mm (1" (one-inch) sensor)
- Crop factor
- 2.70×
- Resolution
- 20 MP (5,164 × 3,873 px)
- Max video resolution
- 4K
- Weight
- 204 g (7.2 oz)
- Sensor type
- CMOS sensor
- Storage
- 16 GB internal
- Lens
- 28mm equivalent focal length
- Video
- 2160p at 15fps, 1080p at 30fps
Specifications merged from Wikipedia and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 2.70 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 camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 8 mm | 22 mm | 77.3° | 61.9° | 90.0° |
| 10 mm | 27 mm | 65.2° | 51.3° | 77.3° |
| 12 mm | 32 mm | 56.1° | 43.6° | 67.4° |
| 14 mm | 38 mm | 49.1° | 37.8° | 59.5° |
| 16 mm | 43 mm | 43.6° | 33.4° | 53.1° |
| 18 mm | 49 mm | 39.1° | 29.9° | 47.9° |
| 20 mm | 54 mm | 35.5° | 27.0° | 43.6° |
| 24 mm | 65 mm | 29.9° | 22.6° | 36.9° |
| 28 mm | 76 mm | 25.8° | 19.5° | 31.9° |
| 35 mm | 95 mm | 20.7° | 15.6° | 25.8° |
| 40 mm | 108 mm | 18.2° | 13.7° | 22.6° |
| 50 mm | 135 mm | 14.6° | 11.0° | 18.2° |
| 56 mm | 151 mm | 13.0° | 9.8° | 16.3° |
| 70 mm | 189 mm | 10.4° | 7.8° | 13.0° |
| 85 mm | 230 mm | 8.6° | 6.5° | 10.8° |
| 100 mm | 270 mm | 7.3° | 5.5° | 9.1° |
| 135 mm | 365 mm | 5.4° | 4.1° | 6.8° |
| 200 mm | 541 mm | 3.7° | 2.7° | 4.6° |
| 300 mm | 811 mm | 2.4° | 1.8° | 3.1° |
| 400 mm | 1082 mm | 1.8° | 1.4° | 2.3° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 11.1 µm (the 0.030 mm full-frame standard scaled by the crop factor).
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 8 mm | f/1.8 | 15.7 cm | 68.5 cm | 4.05 m | 43.6 m | ∞ | ∞ | 3.21 m |
| 8 mm | f/2.8 | 25.3 cm | 1.25 m | 59.3 m | ∞ | ∞ | ∞ | 2.07 m |
| 8 mm | f/4 | 38.6 cm | 2.61 m | ∞ | ∞ | ∞ | ∞ | 1.45 m |
| 8 mm | f/8 | 1.28 m | ∞ | ∞ | ∞ | ∞ | ∞ | 72.9 cm |
| 16 mm | f/1.8 | 3.8 cm | 15.4 cm | 63.4 cm | 1.48 m | 4.58 m | 39.6 m | 12.8 m |
| 16 mm | f/2.8 | 5.9 cm | 24.2 cm | 1.02 m | 2.50 m | 9.53 m | ∞ | 8.26 m |
| 16 mm | f/4 | 8.4 cm | 35.1 cm | 1.56 m | 4.24 m | 34.1 m | ∞ | 5.78 m |
| 16 mm | f/8 | 17.3 cm | 77.2 cm | 5.22 m | ∞ | ∞ | ∞ | 2.90 m |
| 27 mm | f/1.8 | 1.3 cm | 5.3 cm | 21.7 cm | 49.2 cm | 1.39 m | 5.90 m | 36.5 m |
| 27 mm | f/2.8 | 2.0 cm | 8.3 cm | 33.9 cm | 77.2 cm | 2.22 m | 10.4 m | 23.5 m |
| 27 mm | f/4 | 2.9 cm | 11.9 cm | 48.7 cm | 1.12 m | 3.33 m | 19.2 m | 16.5 m |
| 27 mm | f/8 | 5.8 cm | 24.0 cm | 1.02 m | 2.50 m | 9.56 m | ∞ | 8.24 m |
| 45 mm | f/1.8 | 0.4 cm | 1.9 cm | 7.7 cm | 17.5 cm | 49.0 cm | 1.98 m | 101 m |
| 45 mm | f/2.8 | 0.7 cm | 2.9 cm | 12.0 cm | 27.3 cm | 76.5 cm | 3.13 m | 65.2 m |
| 45 mm | f/4 | 1.0 cm | 4.2 cm | 17.2 cm | 39.0 cm | 1.10 m | 4.58 m | 45.7 m |
| 45 mm | f/8 | 2.0 cm | 8.4 cm | 34.5 cm | 79.0 cm | 2.28 m | 10.8 m | 22.9 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
Diffraction & pixel pitch#
With 2.48 µm pixels, diffraction starts to soften pixel-level detail around f/3.7. For maximum sharpness keep landscapes between f/2.8 and f/4; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 1.5 px | sharp |
| f/4 | 5.4 µm | 2.2 px | slight softening |
| f/5.6 | 7.5 µm | 3.0 px | visibly soft |
| f/8 | 10.7 µm | 4.3 px | visibly soft |
| f/11 | 14.8 µm | 6.0 px | visibly soft |
| f/16 | 21.5 µm | 8.7 px | visibly soft |
| f/22 | 29.5 µm | 11.9 px | visibly soft |
Maximum print sizes#
At 20 MP the Panasonic Lumix DMC-CM1 produces 5,164 × 3,873 pixel images. See the 20 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 17.2 × 12.9 in | 44 × 33 cm |
| 240 DPI | Fine-art inkjet | 21.5 × 16.1 in | 55 × 41 cm |
| 200 DPI | Wall print | 25.8 × 19.4 in | 66 × 49 cm |
| 150 DPI | Poster, viewed from 1 m+ | 34.4 × 25.8 in | 87 × 66 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 length | 500 rule | NPF f/1.8 | NPF f/2.8 | NPF f/4 |
|---|---|---|---|---|
| 5 mm (14 mm eq.) | 37.0 s | 27.5 s | 34.5 s | 42.9 s |
| 7 mm (19 mm eq.) | 26.4 s | 19.6 s | 24.6 s | 30.6 s |
| 9 mm (24 mm eq.) | 20.5 s | 15.3 s | 19.2 s | 23.8 s |
| 13 mm (35 mm eq.) | 14.2 s | 10.6 s | 13.3 s | 16.5 s |
| 18 mm (49 mm eq.) | 10.3 s | 7.6 s | 9.6 s | 11.9 s |
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 length | No stabilisation (1/equiv. focal) | With 3-stop IS | With 5-stop IBIS |
|---|---|---|---|
| 9 mm | 1/25 s | 0.3 s | 1.3 s |
| 18 mm | 1/50 s | 1/6 s | 0.6 s |
| 37 mm | 1/100 s | 1/13 s | 0.3 s |
| 74 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Panasonic Lumix DMC-CM1 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 × 2.70.
Similar cameras#
Other 1" (one-inch) cameras from around the same time.
- Nikon 1 V1 2011
- Nikon 1 V3 2014
- Nikon 1 J5 2015
- Samsung NX mini
- Nikon 1 J1 2011
- Nikon 1 AW1 2013
- Nikon 1 S1 2013
- Sony Cyber-shot DSC-RX10 2013
- Nikon 1 S2 2014
- Canon PowerShot G3 X 2015
- Canon PowerShot G5 X
- Canon PowerShot G7 X
Frequently asked questions#
What is the crop factor of the Panasonic Lumix DMC-CM1?
The Panasonic Lumix DMC-CM1 has a crop factor of 2.70× relative to 35 mm full frame (diagonal 16.0 mm vs 43.3 mm).
What size is the Panasonic Lumix DMC-CM1 sensor?
12.8 × 9.6 mm (1" (one-inch)), an area of 123 mm² — 14% of full frame.
Is the Panasonic Lumix DMC-CM1 full frame?
No — its sensor is 1" (one-inch), which is 7.0× smaller in area than full frame.
How many megapixels does the Panasonic Lumix DMC-CM1 have?
20 megapixels (5,164 × 3,873 pixels), enough for a 17 × 13 inch print at 300 DPI.
How long can I expose the night sky with the Panasonic Lumix DMC-CM1?
With a 7 mm lens (19 mm equivalent) the 500 rule gives 26 s and the stricter NPF rule at f/2.8 gives 25 s.
Sources & licences#
- Wikipedia: Panasonic Lumix DMC-CM1 — CC BY-SA 4.0
- Wikidata Q18386377 — CC0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources