Specifications#
- Brand
- Panasonic
- Model
- Lumix DMC-TZ25
- Also known as
- DMC-TZ25
- Camera type
- Compact
- Sensor size
- 6.2 × 4.6 mm (1/2.3" sensor)
- Crop factor
- 5.62×
- Resolution
- 12.1 MP (4,017 × 3,012 px)
- Weight
- 208 g (7.3 oz)
- Sensor type
- MOS
- Storage
- SD, SDHC, SDXC
- AF points / area
- Normal: 50 cm - infinity / 200 cm - infinity / Macro / Intelligent AUTO / movies: 3 cm - infinity / 100 cm - infinity
- Flash
- built-in
- Battery
- Li-ion Battery Pack ID-Security (3,6 V, 895 mAh)
- Dimensions
- 104,9 x 57,6 x 33,4 mm
- Made in
- property linked P1071
Specifications merged from Wikipedia, Wikidata and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 5.62 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 |
|---|---|---|---|---|
| 4 mm | 22 mm | 75.2° | 60.0° | 87.8° |
| 4.5 mm | 25 mm | 68.8° | 54.3° | 81.1° |
| 5 mm | 28 mm | 63.3° | 49.6° | 75.2° |
| 6 mm | 34 mm | 54.3° | 42.1° | 65.4° |
| 8 mm | 45 mm | 42.1° | 32.2° | 51.4° |
| 10 mm | 56 mm | 34.2° | 26.0° | 42.1° |
| 12 mm | 67 mm | 28.8° | 21.8° | 35.6° |
| 15 mm | 84 mm | 23.2° | 17.5° | 28.8° |
| 20 mm | 112 mm | 17.5° | 13.2° | 21.8° |
| 25 mm | 140 mm | 14.0° | 10.6° | 17.5° |
| 30 mm | 169 mm | 11.7° | 8.8° | 14.6° |
| 40 mm | 225 mm | 8.8° | 6.6° | 11.0° |
| 50 mm | 281 mm | 7.0° | 5.3° | 8.8° |
| 70 mm | 393 mm | 5.0° | 3.8° | 6.3° |
| 100 mm | 562 mm | 3.5° | 2.6° | 4.4° |
| 150 mm | 843 mm | 2.4° | 1.8° | 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).
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 4 mm | f/2 | 37.2 cm | 2.38 m | ∞ | ∞ | ∞ | ∞ | 1.50 m |
| 4 mm | f/2.8 | 59.0 cm | 13.9 m | ∞ | ∞ | ∞ | ∞ | 1.07 m |
| 4 mm | f/4 | 1.18 m | ∞ | ∞ | ∞ | ∞ | ∞ | 75.3 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 37.9 cm |
| 8 mm | f/2 | 8.3 cm | 34.0 cm | 1.49 m | 3.99 m | 27.2 m | ∞ | 6.00 m |
| 8 mm | f/2.8 | 11.6 cm | 49.0 cm | 2.38 m | 8.20 m | ∞ | ∞ | 4.29 m |
| 8 mm | f/4 | 16.9 cm | 74.4 cm | 4.76 m | 1.9 km | ∞ | ∞ | 3.00 m |
| 8 mm | f/8 | 36.8 cm | 2.36 m | ∞ | ∞ | ∞ | ∞ | 1.51 m |
| 14 mm | f/2 | 2.6 cm | 10.8 cm | 43.8 cm | 1.00 m | 2.93 m | 15.5 m | 18.4 m |
| 14 mm | f/2.8 | 3.7 cm | 15.1 cm | 62.0 cm | 1.44 m | 4.45 m | 36.3 m | 13.1 m |
| 14 mm | f/4 | 5.3 cm | 21.7 cm | 90.8 cm | 2.18 m | 7.71 m | ∞ | 9.19 m |
| 14 mm | f/8 | 10.7 cm | 45.1 cm | 2.13 m | 6.77 m | ∞ | ∞ | 4.60 m |
| 22 mm | f/2 | 1.1 cm | 4.3 cm | 17.5 cm | 39.6 cm | 1.11 m | 4.63 m | 45.3 m |
| 22 mm | f/2.8 | 1.5 cm | 6.0 cm | 24.5 cm | 55.7 cm | 1.57 m | 6.81 m | 32.4 m |
| 22 mm | f/4 | 2.1 cm | 8.6 cm | 35.2 cm | 80.2 cm | 2.31 m | 10.9 m | 22.7 m |
| 22 mm | f/8 | 4.2 cm | 17.4 cm | 72.0 cm | 1.69 m | 5.44 m | 78.4 m | 11.4 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 1.53 µm pixels, diffraction starts to soften pixel-level detail around f/2.3. For maximum sharpness keep landscapes between f/2.8 and f/2; stopping down further trades detail for depth of field.
| Aperture | Airy disk diameter | Spread over | At 100% view |
|---|---|---|---|
| f/2.8 | 3.8 µm | 2.5 px | slight softening |
| f/4 | 5.4 µm | 3.5 px | visibly soft |
| f/5.6 | 7.5 µm | 4.9 px | visibly soft |
| f/8 | 10.7 µm | 7.0 px | visibly soft |
| f/11 | 14.8 µm | 9.6 px | visibly soft |
| f/16 | 21.5 µm | 14.0 px | visibly soft |
| f/22 | 29.5 µm | 19.3 px | visibly soft |
Maximum print sizes#
At 12.1 MP the Panasonic Lumix DMC-TZ25 produces 4,017 × 3,012 pixel images. See the 12 megapixel guide or the print size calculator.
| Resolution | Typical use | Inches | Centimetres |
|---|---|---|---|
| 300 DPI | Photo-lab quality | 13.4 × 10.0 in | 34 × 26 cm |
| 240 DPI | Fine-art inkjet | 16.7 × 12.6 in | 43 × 32 cm |
| 200 DPI | Wall print | 20.1 × 15.1 in | 51 × 38 cm |
| 150 DPI | Poster, viewed from 1 m+ | 26.8 × 20.1 in | 68 × 51 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 |
|---|---|---|---|---|
| 4 mm (22 mm eq.) | 22.2 s | 27.3 s | 36.0 s | 46.5 s |
| 5 mm (28 mm eq.) | 17.8 s | 21.8 s | 28.8 s | 37.2 s |
| 6 mm (34 mm eq.) | 14.8 s | 18.2 s | 24.0 s | 31.0 s |
| 7 mm (39 mm eq.) | 12.7 s | 15.6 s | 20.6 s | 26.6 s |
| 9 mm (51 mm eq.) | 9.9 s | 12.1 s | 16.0 s | 20.7 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 |
|---|---|---|---|
| 4 mm | 1/25 s | 0.3 s | 1.3 s |
| 9 mm | 1/50 s | 1/6 s | 0.6 s |
| 18 mm | 1/100 s | 1/13 s | 0.3 s |
| 36 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Panasonic Lumix DMC-TZ25 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 × 5.62.
Similar cameras#
Other 1/2.3" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Panasonic Lumix DMC-TZ25?
The Panasonic Lumix DMC-TZ25 has a crop factor of 5.62× relative to 35 mm full frame (diagonal 7.7 mm vs 43.3 mm).
What size is the Panasonic Lumix DMC-TZ25 sensor?
6.2 × 4.6 mm (1/2.3"), an area of 28 mm² — 3% of full frame.
Is the Panasonic Lumix DMC-TZ25 full frame?
No — its sensor is 1/2.3", which is 30.4× smaller in area than full frame.
How many megapixels does the Panasonic Lumix DMC-TZ25 have?
12.1 megapixels (4,017 × 3,012 pixels), enough for a 13 × 10 inch print at 300 DPI.
How long can I expose the night sky with the Panasonic Lumix DMC-TZ25?
With a 5 mm lens (28 mm equivalent) the 500 rule gives 18 s and the stricter NPF rule at f/2.8 gives 29 s.
Sources & licences#
- Wikipedia: Panasonic Lumix DMC-TZ25 — CC BY-SA 4.0
- Wikidata Q17056432 — CC0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources