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OM System OM-5

OM System · Micro 4/3 System · 2.00× crop

The OM System OM-5 uses the Micro 4/3 System mount with a 2.00× crop factor (about 17.3 × 13.0 mm sensor), 20.4 megapixels, announced in 2022. Below: equivalent focal lengths, maximum shutter speeds for sharp stars, a hyperfocal distance chart, compatible lenses and how to check the shutter count.

Mount
Micro 4/3 System
Crop factor
2.00×
Sensor (approx.)
17.3 × 13.0 mm
Resolution
20.4 MP
pixel pitch ≈ 3.32 µm
Announced
2022
Circle of confusion
0.015 mm

Equivalent focal length & field of view

Lens focal lengthFull-frame equivalentDiagonal FOVHorizontal FOV
8 mm16 mm107.0°94.5°
10 mm20 mm94.5°81.7°
12 mm24 mm84.1°71.6°
14 mm28 mm75.4°63.4°
16 mm32 mm68.1°56.8°
18 mm36 mm62.0°51.3°
20 mm40 mm56.8°46.8°
24 mm48 mm48.5°39.6°
28 mm56 mm42.3°34.3°
35 mm70 mm34.4°27.8°
50 mm100 mm24.4°19.6°
85 mm170 mm14.5°11.6°
135 mm270 mm9.2°7.3°
200 mm400 mm6.2°5.0°
300 mm600 mm4.1°3.3°
400 mm800 mm3.1°2.5°

Multiply by the 2.00× crop factor for the full-frame equivalent field of view.

Milky Way exposure: NPF and 500 rule

Focal lengthNPF @ f/1.8NPF @ f/2.8Strict NPF @ f/2.8500 rule
8 mm20.3 s24.7 s13.4 s31.2 s
10 mm16.3 s19.8 s10.7 s25.0 s
12 mm13.5 s16.5 s8.9 s20.8 s
14 mm11.6 s14.1 s7.7 s17.9 s
16 mm10.2 s12.3 s6.7 s15.6 s
18 mm9.0 s11.0 s6.0 s13.9 s
20 mm8.1 s9.9 s5.4 s12.5 s
24 mm6.8 s8.2 s4.5 s10.4 s
28 mm5.8 s7.1 s3.9 s8.9 s
35 mm4.6 s5.6 s3.1 s7.1 s

NPF = (35 × f-number + 30 × pixel pitch) ÷ focal length, with a pixel pitch of 3.32 µm (from 20.4 MP). The strict version (Michaud's detailed NPF for the galactic core) gives pin-point stars at 100% view; the 500 rule is a loose rule of thumb that shows trailing on modern sensors.

Hyperfocal distance chart

Focal lengthf/2.8f/5.6f/8f/11f/16
10 mm2.4 m1.2 m0.8 m0.6 m0.4 m
14 mm4.7 m2.3 m1.6 m1.2 m0.8 m
16 mm6.1 m3.1 m2.1 m1.6 m1.1 m
18 mm7.7 m3.9 m2.7 m2.0 m1.4 m
20 mm9.5 m4.8 m3.4 m2.4 m1.7 m
24 mm14 m6.9 m4.8 m3.5 m2.4 m
28 mm19 m9.4 m6.6 m4.8 m3.3 m
35 mm29 m15 m10 m7.5 m5.1 m

Focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp (circle of confusion 0.015 mm). Use the hyperfocal calculator for other settings.

Maximum print size

Print resolutionInchesCentimeters
150 ppi34.8 × 26.1 in88 × 66 cm
200 ppi26.1 × 19.6 in66 × 50 cm
240 ppi21.7 × 16.3 in55 × 41 cm
300 ppi17.4 × 13.0 in44 × 33 cm

300 ppi suits close viewing; 150–200 ppi is plenty for large prints viewed from a distance.

Compatible lenses (120 in our database)

LensFocal lengthMax apertureMount
OM 12-100mm F4.012–100 mmf/4Micro 4/3 System
OM 12-45mm F4.012–45 mmf/4Micro 4/3 System
OM 17mm F1.8 II17 mmf/1.8Micro 4/3 System
OM 20mm F1.420 mmf/1.4Micro 4/3 System
OM System M.Zuiko Digital ED 40-150mm F4.0 PRO40–150 mmf/4Micro 4/3 System
Olympus M.Zuiko Digital ED 7-14mm f/2.8 Pro7–14 mmf/2.8Micro 4/3 System
Panasonic Lumix G Vario 7-14mm f/4.0 Asph.7–14 mmf/4Micro 4/3 System
Samyang 7.5mm f/3.5 UMC Fish-eye MFT8 mmf/3.5Micro 4/3 System
Venus Laowa 7.5mm f/2.08 mmf/2Micro 4/3 System
TTArtisan 7.5mm f/2 Fisheye8 mmf/2Micro 4/3 System
Pergear 7.5mm f/2.88 mmf/2.8Micro 4/3 System
Olympus M.Zuiko Digital ED 8mm f/1.8 Fisheye Pro8 mmf/1.8Micro 4/3 System
Olympus M.Zuiko Digital ED 8-25mm f/4.0 PRO8–25 mmf/4Micro 4/3 System
Panasonic Leica DG Vario-Elmarit 8-18mm f/2.8-4 Asph.8–18 mmf/2.8Micro 4/3 System
SLR Magic 8mm f/48 mmf/4Micro 4/3 System
Samyang 8mm f/3.5 Fish-Eye CS8 mmf/3.5Pentax KAF, Canon EF
Olympus M.Zuiko Digital ED 9-18mm f/4.0-5.69–18 mmf/4Micro 4/3 System
Olympus 9mm Body Cap Lens Fisheye9 mm—Micro 4/3 System
Panasonic Leica DG Summilux 9mm f/1.7 Asph.9 mmf/1.7Micro 4/3 System
Venus Laowa 9mm f/2.8 Zero-D9 mmf/2.8Fujifilm X, Sony E
Panasonic Leica DG Vario-Summilux 10-25mm f/1.7 Asph.10–25 mmf/1.7Micro 4/3 System
Venus Laowa C&D-Dreamer MFT 10mm F2.010 mmf/2Micro 4/3 System
AstrHori 10mm f/810 mmf/8Fujifilm X, Sony E
Samyang 10mm f/2.8 ED AS NCS CS10 mmf/2.8Canon EF, Canon EF-M
Olympus M.Zuiko Digital ED 12mm f/2.012 mmf/2Micro 4/3 System
Olympus M.Zuiko Digital ED 12-50mm f/3.5-6.3 EZ12–50 mmf/3.5Micro 4/3 System
Olympus M.Zuiko Digital ED 12-40mm f/2.8 Pro12–40 mmf/2.8Micro 4/3 System
Olympus M.Zuiko Digital ED 12-100mm f/4.0 IS Pro12–100 mmf/4Micro 4/3 System
Olympus M.Zuiko Digital ED 12-200mm f/3.5-6.312–200 mmf/3.5Micro 4/3 System
Olympus M.Zuiko Digital ED 12-45mm f/4.0 Pro12–45 mmf/4Micro 4/3 System
Panasonic Lumix G Vario 12-60mm f/3.5-5.6 Asph. Power OIS12–60 mmf/3.5Micro 4/3 System
Panasonic Lumix G X Vario 12-35mm f/2.8 Asph. Power OIS12–35 mmf/2.8Micro 4/3 System
Panasonic Lumix G X Vario 12-35mm f/2.8 II Asph. Power OIS12–35 mmf/2.8Micro 4/3 System
Panasonic Lumix G Vario 12-32mm f/3.5-5.6 Asph. Mega OIS12–32 mmf/3.5Micro 4/3 System
Panasonic Leica DG Vario-Elmarit 12-60mm f/2.8-4.0 Asph. Power OIS12–60 mmf/2.8Micro 4/3 System
Samyang 12mm f/2.0 NCS CS12 mmf/2Sony E, Fujifilm X
Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.614–42 mmf/3.5Micro 4/3 System
Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 L14–42 mmf/3.5Micro 4/3 System
Olympus M.Zuiko Digital 14-42mm f/3.5-5.6 II14–42 mmf/3.5Micro 4/3 System
Olympus M.Zuiko Digital ED 14-42mm f/3.5-5.6 II R14–42 mmf/3.5Micro 4/3 System

Native and adapter-free compatible lenses from the Lensfun database. Third-party and adapted lenses may also work.

How to check the OM System OM-5 shutter count

Not every maker writes a shutter count into image files. Try `exiftool -a -G1 -s image` on an unedited original and look for a tag containing "Shutter" or "Count".

ExifTool tag: (varies). Always test an original, unedited file straight from the card.

Where to buy

Compare new and used prices at these retailers:

B&H PhotoAmazonKEH (used)MPB (used)

Other Micro 4/3 System cameras

FAQ

What is the crop factor of the OM System OM-5?
2.00×. A 24 mm lens frames like a 48 mm lens on full frame.
What shutter speed should I use for the Milky Way with the OM System OM-5?
With a 8 mm lens at f/2.8, about 25 seconds keeps stars sharp (NPF rule).
How do I check the shutter count on the OM System OM-5?
Not every maker writes a shutter count into image files. Try `exiftool -a -G1 -s image` on an unedited original and look for a tag containing "Shutter" or "Count".
Which lenses fit the OM System OM-5?
Lenses for the Micro 4/3 System mount — 120 are listed above.