Specifications#
- Brand
- Olympus
- Model
- E-100RS
- Camera type
- Compact
- Released
- 2000-01-01
- Sensor size
- 6.4 × 4.8 mm (1/2.3" sensor)
- Crop factor
- 5.41×
Specifications merged from Wikidata and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 5.41 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 | 77.3° | 61.9° | 90.0° |
| 4.5 mm | 24 mm | 70.8° | 56.1° | 83.3° |
| 5 mm | 27 mm | 65.2° | 51.3° | 77.3° |
| 6 mm | 32 mm | 56.1° | 43.6° | 67.4° |
| 8 mm | 43 mm | 43.6° | 33.4° | 53.1° |
| 10 mm | 54 mm | 35.5° | 27.0° | 43.6° |
| 12 mm | 65 mm | 29.9° | 22.6° | 36.9° |
| 15 mm | 81 mm | 24.1° | 18.2° | 29.9° |
| 20 mm | 108 mm | 18.2° | 13.7° | 22.6° |
| 25 mm | 135 mm | 14.6° | 11.0° | 18.2° |
| 30 mm | 162 mm | 12.2° | 9.1° | 15.2° |
| 40 mm | 216 mm | 9.1° | 6.9° | 11.4° |
| 50 mm | 270 mm | 7.3° | 5.5° | 9.1° |
| 70 mm | 379 mm | 5.2° | 3.9° | 6.5° |
| 100 mm | 541 mm | 3.7° | 2.7° | 4.6° |
| 150 mm | 811 mm | 2.4° | 1.8° | 3.1° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 5.5 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 | 39.0 cm | 2.64 m | ∞ | ∞ | ∞ | ∞ | 1.45 m |
| 4 mm | f/2.8 | 62.7 cm | 29.7 m | ∞ | ∞ | ∞ | ∞ | 1.03 m |
| 4 mm | f/4 | 1.31 m | ∞ | ∞ | ∞ | ∞ | ∞ | 72.5 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 36.5 cm |
| 8 mm | f/2 | 8.6 cm | 35.4 cm | 1.57 m | 4.26 m | 34.4 m | ∞ | 5.78 m |
| 8 mm | f/2.8 | 12.1 cm | 51.1 cm | 2.52 m | 9.21 m | ∞ | ∞ | 4.13 m |
| 8 mm | f/4 | 17.6 cm | 78.0 cm | 5.28 m | ∞ | ∞ | ∞ | 2.89 m |
| 8 mm | f/8 | 38.6 cm | 2.61 m | ∞ | ∞ | ∞ | ∞ | 1.45 m |
| 14 mm | f/2 | 2.8 cm | 11.2 cm | 45.5 cm | 1.04 m | 3.07 m | 16.6 m | 17.7 m |
| 14 mm | f/2.8 | 3.9 cm | 15.7 cm | 64.5 cm | 1.50 m | 4.68 m | 42.3 m | 12.6 m |
| 14 mm | f/4 | 5.5 cm | 22.6 cm | 94.7 cm | 2.29 m | 8.28 m | ∞ | 8.85 m |
| 14 mm | f/8 | 11.1 cm | 47.0 cm | 2.25 m | 7.47 m | ∞ | ∞ | 4.43 m |
| 22 mm | f/2 | 1.1 cm | 4.5 cm | 18.2 cm | 41.1 cm | 1.16 m | 4.83 m | 43.6 m |
| 22 mm | f/2.8 | 1.5 cm | 6.3 cm | 25.5 cm | 57.9 cm | 1.64 m | 7.14 m | 31.2 m |
| 22 mm | f/4 | 2.2 cm | 9.0 cm | 36.6 cm | 83.5 cm | 2.41 m | 11.6 m | 21.8 m |
| 22 mm | f/8 | 4.4 cm | 18.1 cm | 75.0 cm | 1.77 m | 5.77 m | 112 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 (22 mm eq.) | 23.1 s |
| 5 mm (27 mm eq.) | 18.5 s |
| 6 mm (32 mm eq.) | 15.4 s |
| 7 mm (38 mm eq.) | 13.2 s |
| 9 mm (49 mm eq.) | 10.3 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 | 1/20 s | 0.4 s | 1.6 s |
| 9 mm | 1/50 s | 1/6 s | 0.6 s |
| 18 mm | 1/100 s | 1/13 s | 0.3 s |
| 37 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Olympus E-100RS 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 × 5.41.
Similar cameras#
Other 1/2.3" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Olympus E-100RS?
The Olympus E-100RS has a crop factor of 5.41× relative to 35 mm full frame (diagonal 8.0 mm vs 43.3 mm).
What size is the Olympus E-100RS sensor?
6.4 × 4.8 mm (1/2.3"), an area of 31 mm² — 4% of full frame.
Is the Olympus E-100RS full frame?
No — its sensor is 1/2.3", which is 28.1× smaller in area than full frame.
How long can I expose the night sky with the Olympus E-100RS?
With a 5 mm lens (27 mm equivalent) the 500 rule gives 18 s.
Sources & licences#
- Wikidata Q20889152 — CC0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources