Specifications#
- Brand
- Olympus
- Model
- C-750 Ultra Zoom
- Also known as
- C750UZ, Olympus C-750 UZ, Olympus C750UZ
- Camera type
- Compact
- Released
- 2003-01-01
- Sensor size
- 5.3 × 4.8 mm (1/2.5" sensor)
- Crop factor
- 6.03×
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 6.03 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 | 24 mm | 67.1° | 62.1° | 83.7° |
| 4.5 mm | 27 mm | 61.1° | 56.3° | 77.1° |
| 5 mm | 30 mm | 55.9° | 51.5° | 71.3° |
| 6 mm | 36 mm | 47.7° | 43.8° | 61.7° |
| 8 mm | 48 mm | 36.7° | 33.5° | 48.3° |
| 10 mm | 60 mm | 29.7° | 27.1° | 39.5° |
| 12 mm | 72 mm | 25.0° | 22.7° | 33.3° |
| 15 mm | 90 mm | 20.1° | 18.3° | 26.9° |
| 20 mm | 121 mm | 15.1° | 13.7° | 20.3° |
| 25 mm | 151 mm | 12.1° | 11.0° | 16.3° |
| 30 mm | 181 mm | 10.1° | 9.2° | 13.6° |
| 40 mm | 241 mm | 7.6° | 6.9° | 10.2° |
| 50 mm | 302 mm | 6.1° | 5.5° | 8.2° |
| 70 mm | 422 mm | 4.3° | 3.9° | 5.9° |
| 100 mm | 603 mm | 3.0° | 2.8° | 4.1° |
| 150 mm | 905 mm | 2.0° | 1.8° | 2.7° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 5.0 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 | 34.1 cm | 2.01 m | ∞ | ∞ | ∞ | ∞ | 1.61 m |
| 4 mm | f/2.8 | 53.0 cm | 6.97 m | ∞ | ∞ | ∞ | ∞ | 1.15 m |
| 4 mm | f/4 | 99.5 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 80.8 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 40.6 cm |
| 7 mm | f/2 | 10.1 cm | 42.0 cm | 1.93 m | 5.78 m | ∞ | ∞ | 4.93 m |
| 7 mm | f/2.8 | 14.3 cm | 61.3 cm | 3.33 m | 18.4 m | ∞ | ∞ | 3.53 m |
| 7 mm | f/4 | 20.8 cm | 96.3 cm | 9.36 m | ∞ | ∞ | ∞ | 2.47 m |
| 7 mm | f/8 | 47.7 cm | 4.60 m | ∞ | ∞ | ∞ | ∞ | 1.24 m |
| 12 mm | f/2 | 3.4 cm | 13.7 cm | 56.0 cm | 1.29 m | 3.91 m | 26.3 m | 14.5 m |
| 12 mm | f/2.8 | 4.7 cm | 19.3 cm | 79.8 cm | 1.89 m | 6.28 m | 286 m | 10.4 m |
| 12 mm | f/4 | 6.8 cm | 27.8 cm | 1.19 m | 2.98 m | 13.1 m | ∞ | 7.25 m |
| 12 mm | f/8 | 13.7 cm | 59.0 cm | 3.15 m | 15.5 m | ∞ | ∞ | 3.63 m |
| 20 mm | f/2 | 1.2 cm | 4.9 cm | 19.7 cm | 44.7 cm | 1.26 m | 5.29 m | 40.2 m |
| 20 mm | f/2.8 | 1.7 cm | 6.8 cm | 27.7 cm | 62.9 cm | 1.79 m | 7.90 m | 28.7 m |
| 20 mm | f/4 | 2.4 cm | 9.8 cm | 39.8 cm | 90.9 cm | 2.64 m | 13.2 m | 20.1 m |
| 20 mm | f/8 | 4.8 cm | 19.7 cm | 81.9 cm | 1.95 m | 6.56 m | 1.3 km | 10.1 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 (24 mm eq.) | 20.7 s |
| 5 mm (30 mm eq.) | 16.6 s |
| 6 mm (36 mm eq.) | 13.8 s |
| 7 mm (42 mm eq.) | 11.8 s |
| 8 mm (48 mm eq.) | 10.4 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 |
| 17 mm | 1/100 s | 1/13 s | 0.3 s |
| 33 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Olympus C-750 Ultra Zoom 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 × 6.03.
Similar cameras#
Other 1/2.5" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Olympus C-750 Ultra Zoom?
The Olympus C-750 Ultra Zoom has a crop factor of 6.03× relative to 35 mm full frame (diagonal 7.2 mm vs 43.3 mm).
What size is the Olympus C-750 Ultra Zoom sensor?
5.3 × 4.8 mm (1/2.5"), an area of 26 mm² — 3% of full frame.
Is the Olympus C-750 Ultra Zoom full frame?
No — its sensor is 1/2.5", which is 33.8× smaller in area than full frame.
How long can I expose the night sky with the Olympus C-750 Ultra Zoom?
With a 5 mm lens (30 mm equivalent) the 500 rule gives 17 s.
Sources & licences#
- Wikidata Q20859081 — 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