Specifications#
- Brand
- Minolta
- Model
- DiMage Z1
- Camera type
- Compact
- Sensor size
- 5.3 × 3.9 mm (1/2.5" sensor)
- Crop factor
- 6.55×
Specifications merged from Wikidata, Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 6.55 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 | 26 mm | 67.1° | 52.3° | 79.1° |
| 4.5 mm | 29 mm | 61.1° | 47.2° | 72.6° |
| 5 mm | 33 mm | 55.9° | 42.9° | 66.9° |
| 6 mm | 39 mm | 47.7° | 36.3° | 57.7° |
| 8 mm | 52 mm | 36.7° | 27.6° | 44.9° |
| 10 mm | 65 mm | 29.7° | 22.2° | 36.6° |
| 12 mm | 79 mm | 25.0° | 18.6° | 30.8° |
| 15 mm | 98 mm | 20.1° | 14.9° | 24.8° |
| 20 mm | 131 mm | 15.1° | 11.2° | 18.8° |
| 25 mm | 164 mm | 12.1° | 9.0° | 15.1° |
| 30 mm | 196 mm | 10.1° | 7.5° | 12.6° |
| 40 mm | 262 mm | 7.6° | 5.6° | 9.4° |
| 50 mm | 327 mm | 6.1° | 4.5° | 7.6° |
| 70 mm | 458 mm | 4.3° | 3.2° | 5.4° |
| 100 mm | 655 mm | 3.0° | 2.3° | 3.8° |
| 150 mm | 982 mm | 2.0° | 1.5° | 2.5° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 4.6 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 | 30.9 cm | 1.69 m | ∞ | ∞ | ∞ | ∞ | 1.75 m |
| 4 mm | f/2.8 | 47.2 cm | 4.40 m | ∞ | ∞ | ∞ | ∞ | 1.25 m |
| 4 mm | f/4 | 83.8 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 87.7 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 44.1 cm |
| 7 mm | f/2 | 9.3 cm | 38.5 cm | 1.73 m | 4.89 m | 72.6 m | ∞ | 5.36 m |
| 7 mm | f/2.8 | 13.1 cm | 55.7 cm | 2.87 m | 12.2 m | ∞ | ∞ | 3.83 m |
| 7 mm | f/4 | 19.1 cm | 86.1 cm | 6.70 m | ∞ | ∞ | ∞ | 2.68 m |
| 7 mm | f/8 | 42.7 cm | 3.31 m | ∞ | ∞ | ∞ | ∞ | 1.34 m |
| 12 mm | f/2 | 3.1 cm | 12.6 cm | 51.4 cm | 1.18 m | 3.53 m | 21.3 m | 15.7 m |
| 12 mm | f/2.8 | 4.4 cm | 17.7 cm | 73.1 cm | 1.72 m | 5.54 m | 85.3 m | 11.2 m |
| 12 mm | f/4 | 6.2 cm | 25.5 cm | 1.08 m | 2.67 m | 10.6 m | ∞ | 7.87 m |
| 12 mm | f/8 | 12.6 cm | 53.7 cm | 2.72 m | 10.8 m | ∞ | ∞ | 3.94 m |
| 20 mm | f/2 | 1.1 cm | 4.5 cm | 18.2 cm | 41.1 cm | 1.16 m | 4.82 m | 43.7 m |
| 20 mm | f/2.8 | 1.5 cm | 6.3 cm | 25.5 cm | 57.9 cm | 1.64 m | 7.13 m | 31.2 m |
| 20 mm | f/4 | 2.2 cm | 9.0 cm | 36.6 cm | 83.5 cm | 2.41 m | 11.6 m | 21.9 m |
| 20 mm | f/8 | 4.4 cm | 18.1 cm | 75.0 cm | 1.77 m | 5.76 m | 111 m | 10.9 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
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. (NPF needs a known resolution and is omitted here.)
| Focal length | 500 rule |
|---|---|
| 4 mm (26 mm eq.) | 19.1 s |
| 5 mm (33 mm eq.) | 15.3 s |
| 6 mm (39 mm eq.) | 12.7 s |
| 7 mm (46 mm eq.) | 10.9 s |
| 8 mm (52 mm eq.) | 9.5 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 |
| 8 mm | 1/50 s | 1/6 s | 0.6 s |
| 15 mm | 1/100 s | 1/13 s | 0.3 s |
| 31 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Minolta DiMage Z1 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 × 6.55.
Similar cameras#
Other 1/2.5" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Minolta DiMage Z1?
The Minolta DiMage Z1 has a crop factor of 6.55× relative to 35 mm full frame (diagonal 6.6 mm vs 43.3 mm).
What size is the Minolta DiMage Z1 sensor?
5.3 × 3.9 mm (1/2.5"), an area of 21 mm² — 2% of full frame.
Is the Minolta DiMage Z1 full frame?
No — its sensor is 1/2.5", which is 41.4× smaller in area than full frame.
How long can I expose the night sky with the Minolta DiMage Z1?
With a 5 mm lens (33 mm equivalent) the 500 rule gives 15 s.
Sources & licences#
- Wikidata Q108000462 — CC0
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources