Specifications#
- Brand
- Olympus
- Model
- X-2
- Also known as
- C-50 Zoom, Olympus C-50 Zoom, X-2,C-50Z
- Camera type
- Compact
- Sensor size
- 7.1 × 5.2 mm (1/1.7" sensor)
- Crop factor
- 4.90×
Specifications merged from Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 4.90 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 | 20 mm | 83.3° | 66.4° | 95.7° |
| 4.5 mm | 22 mm | 76.6° | 60.4° | 88.9° |
| 5 mm | 24 mm | 70.8° | 55.3° | 82.9° |
| 6 mm | 29 mm | 61.3° | 47.2° | 72.7° |
| 8 mm | 39 mm | 47.9° | 36.3° | 57.8° |
| 10 mm | 49 mm | 39.1° | 29.4° | 47.7° |
| 12 mm | 59 mm | 33.0° | 24.6° | 40.4° |
| 15 mm | 73 mm | 26.7° | 19.8° | 32.8° |
| 20 mm | 98 mm | 20.2° | 14.9° | 24.9° |
| 25 mm | 122 mm | 16.2° | 12.0° | 20.0° |
| 30 mm | 147 mm | 13.5° | 10.0° | 16.7° |
| 40 mm | 196 mm | 10.2° | 7.5° | 12.6° |
| 50 mm | 245 mm | 8.1° | 6.0° | 10.1° |
| 70 mm | 343 mm | 5.8° | 4.3° | 7.2° |
| 100 mm | 490 mm | 4.1° | 3.0° | 5.1° |
| 150 mm | 735 mm | 2.7° | 2.0° | 3.4° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 6.1 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 |
|---|---|---|---|---|---|---|---|---|
| 4 mm | f/2 | 44.4 cm | 3.64 m | ∞ | ∞ | ∞ | ∞ | 1.31 m |
| 4 mm | f/2.8 | 74.1 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 93.7 cm |
| 4 mm | f/4 | 1.79 m | ∞ | ∞ | ∞ | ∞ | ∞ | 65.7 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 33.1 cm |
| 9 mm | f/2 | 7.5 cm | 30.7 cm | 1.32 m | 3.41 m | 17.5 m | ∞ | 6.62 m |
| 9 mm | f/2.8 | 10.5 cm | 43.9 cm | 2.05 m | 6.34 m | ∞ | ∞ | 4.73 m |
| 9 mm | f/4 | 15.2 cm | 65.9 cm | 3.78 m | 29.9 m | ∞ | ∞ | 3.32 m |
| 9 mm | f/8 | 32.6 cm | 1.87 m | ∞ | ∞ | ∞ | ∞ | 1.66 m |
| 15 mm | f/2 | 2.6 cm | 10.8 cm | 43.7 cm | 1.00 m | 2.93 m | 15.4 m | 18.4 m |
| 15 mm | f/2.8 | 3.7 cm | 15.1 cm | 61.9 cm | 1.44 m | 4.44 m | 36.2 m | 13.1 m |
| 15 mm | f/4 | 5.3 cm | 21.7 cm | 90.7 cm | 2.18 m | 7.69 m | ∞ | 9.20 m |
| 15 mm | f/8 | 10.7 cm | 45.0 cm | 2.13 m | 6.75 m | ∞ | ∞ | 4.61 m |
| 25 mm | f/2 | 0.9 cm | 3.8 cm | 15.5 cm | 35.1 cm | 98.4 cm | 4.06 m | 51.1 m |
| 25 mm | f/2.8 | 1.3 cm | 5.4 cm | 21.7 cm | 49.3 cm | 1.39 m | 5.92 m | 36.5 m |
| 25 mm | f/4 | 1.9 cm | 7.7 cm | 31.2 cm | 70.9 cm | 2.03 m | 9.23 m | 25.5 m |
| 25 mm | f/8 | 3.7 cm | 15.4 cm | 63.4 cm | 1.48 m | 4.60 m | 40.2 m | 12.8 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 (20 mm eq.) | 25.5 s |
| 5 mm (24 mm eq.) | 20.4 s |
| 6 mm (29 mm eq.) | 17.0 s |
| 7 mm (34 mm eq.) | 14.6 s |
| 10 mm (49 mm eq.) | 10.2 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 |
|---|---|---|---|
| 5 mm | 1/25 s | 0.3 s | 1.3 s |
| 10 mm | 1/50 s | 1/6 s | 0.6 s |
| 20 mm | 1/100 s | 1/13 s | 0.3 s |
| 41 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Olympus X-2 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 × 4.90.
Similar cameras#
Other 1/1.7" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Olympus X-2?
The Olympus X-2 has a crop factor of 4.90× relative to 35 mm full frame (diagonal 8.8 mm vs 43.3 mm).
What size is the Olympus X-2 sensor?
7.1 × 5.2 mm (1/1.7"), an area of 37 mm² — 4% of full frame.
Is the Olympus X-2 full frame?
No — its sensor is 1/1.7", which is 23.2× smaller in area than full frame.
How long can I expose the night sky with the Olympus X-2?
With a 5 mm lens (24 mm equivalent) the 500 rule gives 20 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources