Specifications#
- Brand
- OM System
- Model
- PEN
- Camera type
- Digital camera
- Lens mount
- Micro Four Thirds
- Sensor size
- 17.3 × 13.0 mm (Four Thirds / Micro Four Thirds)
- Crop factor
- 2.00×
Specifications merged from Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 2.00 to get the full-frame field of view. Angles are for a rectilinear lens focused at infinity.
| Lens on this camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 8 mm | 16 mm | 94.5° | 78.1° | 107.0° |
| 10 mm | 20 mm | 81.8° | 66.0° | 94.5° |
| 12 mm | 24 mm | 71.6° | 56.8° | 84.1° |
| 14 mm | 28 mm | 63.4° | 49.7° | 75.4° |
| 16 mm | 32 mm | 56.8° | 44.2° | 68.1° |
| 18 mm | 36 mm | 51.4° | 39.7° | 62.0° |
| 20 mm | 40 mm | 46.8° | 36.0° | 56.8° |
| 24 mm | 48 mm | 39.7° | 30.3° | 48.5° |
| 28 mm | 56 mm | 34.4° | 26.1° | 42.2° |
| 35 mm | 70 mm | 27.8° | 21.0° | 34.4° |
| 40 mm | 80 mm | 24.4° | 18.4° | 30.3° |
| 50 mm | 100 mm | 19.6° | 14.8° | 24.4° |
| 56 mm | 112 mm | 17.6° | 13.2° | 21.9° |
| 70 mm | 140 mm | 14.1° | 10.6° | 17.6° |
| 85 mm | 170 mm | 11.6° | 8.7° | 14.5° |
| 100 mm | 200 mm | 9.9° | 7.4° | 12.3° |
| 135 mm | 270 mm | 7.3° | 5.5° | 9.2° |
| 200 mm | 400 mm | 5.0° | 3.7° | 6.2° |
| 300 mm | 600 mm | 3.3° | 2.5° | 4.1° |
| 400 mm | 800 mm | 2.5° | 1.9° | 3.1° |
| 600 mm | 1200 mm | 1.7° | 1.2° | 2.1° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 15.0 µm (the 0.030 mm full-frame standard scaled by the crop factor). Detailed tables: 24 mm f/1.8, 24 mm f/2.8, 35 mm f/1.8, 35 mm f/2.8, 50 mm f/1.8, 50 mm f/2.8.
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 11 mm | f/1.8 | 11.0 cm | 46.4 cm | 2.21 m | 7.21 m | ∞ | ∞ | 4.49 m |
| 11 mm | f/2.8 | 17.5 cm | 77.8 cm | 5.28 m | ∞ | ∞ | ∞ | 2.89 m |
| 11 mm | f/4 | 25.8 cm | 1.29 m | 146 m | ∞ | ∞ | ∞ | 2.03 m |
| 11 mm | f/8 | 63.4 cm | 52.0 m | ∞ | ∞ | ∞ | ∞ | 1.02 m |
| 22 mm | f/1.8 | 2.7 cm | 10.9 cm | 44.7 cm | 1.03 m | 3.01 m | 16.1 m | 17.9 m |
| 22 mm | f/2.8 | 4.2 cm | 17.1 cm | 70.8 cm | 1.66 m | 5.31 m | 69.2 m | 11.5 m |
| 22 mm | f/4 | 5.9 cm | 24.6 cm | 1.04 m | 2.56 m | 9.97 m | ∞ | 8.09 m |
| 22 mm | f/8 | 12.0 cm | 51.5 cm | 2.58 m | 9.74 m | ∞ | ∞ | 4.05 m |
| 37 mm | f/1.8 | 0.9 cm | 3.8 cm | 15.5 cm | 35.2 cm | 98.8 cm | 4.09 m | 50.7 m |
| 37 mm | f/2.8 | 1.4 cm | 5.9 cm | 24.2 cm | 55.0 cm | 1.56 m | 6.74 m | 32.6 m |
| 37 mm | f/4 | 2.0 cm | 8.5 cm | 34.7 cm | 79.3 cm | 2.28 m | 10.8 m | 22.9 m |
| 37 mm | f/8 | 4.1 cm | 17.0 cm | 70.9 cm | 1.67 m | 5.37 m | 73.7 m | 11.4 m |
| 62 mm | f/1.8 | 0.3 cm | 1.3 cm | 5.4 cm | 12.4 cm | 34.7 cm | 1.40 m | 142 m |
| 62 mm | f/2.8 | 0.5 cm | 2.1 cm | 8.5 cm | 19.3 cm | 54.1 cm | 2.20 m | 91.6 m |
| 62 mm | f/4 | 0.7 cm | 2.9 cm | 12.1 cm | 27.6 cm | 77.5 cm | 3.18 m | 64.1 m |
| 62 mm | f/8 | 1.4 cm | 5.9 cm | 24.3 cm | 55.5 cm | 1.58 m | 6.87 m | 32.1 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 |
|---|---|
| 7 mm (14 mm eq.) | 35.7 s |
| 10 mm (20 mm eq.) | 25.0 s |
| 12 mm (24 mm eq.) | 20.8 s |
| 18 mm (36 mm eq.) | 13.9 s |
| 25 mm (50 mm eq.) | 10.0 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 |
|---|---|---|---|
| 12 mm | 1/25 s | 0.3 s | 1.3 s |
| 25 mm | 1/50 s | 1/6 s | 0.6 s |
| 50 mm | 1/100 s | 1/13 s | 0.3 s |
| 100 mm | 1/200 s | 1/25 s | 1/6 s |
Lenses for the OM System PEN#
Native Micro Four Thirds lenses in our database (100 total). Also adaptable: T-mount (T2), M39 / LTM (Leica thread), M42 screw mount, Deckel (DKL).
- Olympus M.Zuiko Digital ED 7-14mm f/2.8 Pro 7–14 mm
- Panasonic G Vario 7-14mm f/4.0 Asph. 7–14 mm
- Laowa 7.5mm f/2.0 7.5 mm
- Samyang 7.5mm f/3.5 UMC Fish-eye MFT 7.5 mm
- Olympus M.Zuiko Digital ED 8-25mm f/4.0 PRO 8–25 mm
- Olympus M.Zuiko Digital ED 8mm f/1.8 Fisheye Pro 8 mm
- Panasonic Leica DG Vario-Elmarit 8-18mm f/2.8-4 Asph. 8–18 mm
- Samyang 8mm f/3.5 Fish-Eye CS 8 mm
- Laowa 9mm f/2.8 Zero-D 9 mm
- Olympus M.Zuiko Digital ED 9-18mm f/4.0-5.6 9–18 mm
- Panasonic Leica DG Summilux 9mm f/1.7 Asph. 9 mm
- Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 Asph. 10–25 mm
- Samyang 10mm f/2.8 ED AS NCS CS 10 mm
- OM System 12-100mm F4.0 12–100 mm
- OM System 12-45mm F4.0 12–45 mm
- Olympus M.Zuiko Digital ED 12-100mm f/4.0 IS Pro 12–100 mm
- Olympus M.Zuiko Digital ED 12-200mm f/3.5-6.3 12–200 mm
- Olympus M.Zuiko Digital ED 12-40mm f/2.8 Pro 12–40 mm
- Olympus M.Zuiko Digital ED 12-45mm f/4.0 Pro 12–45 mm
- Olympus M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ 12–50 mm
- Olympus M.Zuiko Digital ED 12mm f/2.0 12 mm
- Panasonic G Vario 12-32mm f/3.5-5.6 Asph. Mega OIS 12–32 mm
- Panasonic G Vario 12-60mm f/3.5-5.6 Asph. Power OIS 12–60 mm
- Panasonic G X Vario 12-35mm f/2.8 Asph. Power OIS 12–35 mm
- Panasonic G X Vario 12-35mm f/2.8 II Asph. Power OIS 12–35 mm
- Panasonic Leica DG Vario-Elmarit 12-60mm f/2.8-4.0 Asph. Power OIS 12–60 mm
- Samyang 12mm f/2.0 NCS CS 12 mm
- Olympus M.Zuiko Digital 14-42mm f/3.5-5.6 II 14–42 mm
- Olympus M.Zuiko Digital ED 14-150mm f/4.0-5.6 14–150 mm
- Olympus M.Zuiko Digital ED 14-150mm f/4.0-5.6 II 14–150 mm
- Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 14–42 mm
- Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 EZ 14–42 mm
- Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 II R 14–42 mm
- Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 L 14–42 mm
- Panasonic G 14mm f/2.5 Asph. 14 mm
- Panasonic G 14mm f/2.5 Asph. + GWC1 0.79× 14 mm
Similar cameras#
Other Four Thirds / Micro Four Thirds cameras from around the same time.
Frequently asked questions#
What is the crop factor of the OM System PEN?
The OM System PEN has a crop factor of 2.00× relative to 35 mm full frame (diagonal 21.6 mm vs 43.3 mm).
What size is the OM System PEN sensor?
17.3 × 13.0 mm (Four Thirds / Micro Four Thirds), an area of 225 mm² — 26% of full frame.
Is the OM System PEN full frame?
No — its sensor is Four Thirds / Micro Four Thirds, which is 3.8× smaller in area than full frame.
What lens mount does the OM System PEN use?
The OM System PEN uses the Micro Four Thirds (flange distance 19.25 mm).
How long can I expose the night sky with the OM System PEN?
With a 10 mm lens (20 mm equivalent) the 500 rule gives 25 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources