Olympus OM-D E-M10 Mark IV

Olympus · OM-D

OM-D E-M10 Mark IV

Released August 2020

A 20.3-megapixel Micro Four Thirds mirrorless camera with five-axis sensor stabilisation, an electronic viewfinder and a flip-down touchscreen.

Type
Mirrorless
Sensor
Four Thirds
Megapixels
20.3
Lens
Micro Four Thirds
Video
3840 × 2160 at 30 fps
Body weight
335 g

What reviewers say

Both praise the compact handling, attractive images and effective stabilisation, while finding continuous autofocus less suited to erratic movement. Amateur Photographer likes the twin dials but finds touchscreen control incomplete and the selfie screen awkward on a tripod. Photography Blog finds the improvements useful for new buyers but too modest to justify upgrading from the Mark III.

From amateurphotographer.com and photographyblog.com

Image and sensor

Camera type
Mirrorless
Sensor format
Four Thirds
Sensor type
Live MOS
Sensor dimensions
17.3 × 13 mm
Effective resolution
20.3 MP
Largest image
5184 × 3888
RAW recording
Yes
Standard ISO range
200–25600
Sensor detail
Approximately 21.8 total megapixels; UK image area 17.3×13 mm, while Japan specifies 17.4×13 mm
Image formats
JPEG, 12-bit losslessly compressed ORF RAW and simultaneous RAW+JPEG; 5184×3888 maximum ordinary still size
ISO detail
Manual ISO 200–25600, with expanded LOW approximately ISO 100; Auto normally LOW–6400. Amateur Photographer describes a narrower standard range, unlike the maker's manual sensitivity table
Image processor
TruePic VIII

Lens and shooting

Lens mount
Micro Four Thirds
Stabilisation
Sensor shift
Maximum continuous burst
15 fps
Autofocus
121-point contrast detection; single, nine-point group or all-area selection; face and near-eye detection, tracking, manual focus and focus peaking
Shutter
Mechanical 1/4000–60 seconds; electronic 1/16000–60 seconds; electronic first curtain 1/320–60 seconds, switching to mechanical first curtain at faster speeds; Bulb, Live Time and Live Composite
Burst detail
Electronic high approximately 15 fps with focus fixed at the first frame; electronic low 6.3 fps with continuous autofocus, reported by Amateur Photographer. Mechanical high 8.7 fps and low 5 fps. Maker electronic-high buffer 42 RAW or 49 large-fine JPEG with specified Toshiba UHS-II card
Stabilisation detail
Five-axis sensor shift, rated up to 4.5 CIPA stops with M.Zuiko Digital ED 14–42mm F3.5–5.6 EZ at 42 mm, yaw/pitch; movie stabilisation can add electronic correction with a field-of-view crop
Flash
Built-in flash, guide number 7.2 at ISO 200; hot shoe; mechanical flash synchronisation up to 1/250 second
Exposure controls
P/A/S/M, Auto, scene and Advanced Photo modes; live long-exposure previews, multiple exposure and eight-frame focus bracketing in AP mode

Video

Highest video resolution
3840 × 2160 at 30 fps
Video detail
MOV H.264; 4K 30/25/24p approximately 102 Mbps, Full HD up to 60p and 720p high-speed recording at 120 fps; maximum clip approximately 29 minutes
Audio
Built-in stereo microphone, 16-bit 48 kHz linear PCM, recording-level and wind-noise controls; no microphone or headphone socket, confirmed by both reviews

Screen and viewfinder

Viewfinder
Electronic
Screen size
3″
Screen dots
1,037,000
Touchscreen
Yes
Tilting screen
Yes
Display detail
Tilts approximately 80° up and 180° down; forward-facing selfie mode beneath the body
Viewfinder detail
Approximately 2.36 million dots, 100% coverage and maximum 1.23× magnification with 50 mm lens at infinity, −1 dioptre

Connections and design

Wi-Fi
Yes
Bluetooth
Yes
Battery life (maker's claim)
360 photographs
Body weight
335 g
Release detail
Maker European announcement states mid-August 2020 availability; Japan first sale 18 September and North American shipping 25 September. Month precision retained for the earlier European release
Recording media
One SD slot; SDHC and SDXC with UHS-I/UHS-II support
Ports
USB 2.0 Micro-B, micro-HDMI Type D and hot shoe; no wired remote-release socket
Wireless connections
Wi-Fi IEEE 802.11b/g/n and Bluetooth 4.2 Low Energy; smartphone transfer, remote shooting and smartphone GPS tagging through OI.Share
Battery life detail
BLS-50 rechargeable battery; approximately 360 CIPA photographs with stabilisation on; video 80 minutes under standard JEITA conditions or 140 minutes with repeated maximum-length clips under maker conditions
Charging
In-camera USB charging with camera switched off; F-5AC USB adapter supplied in Japan; external BCS-5 charger optional
Dimensions
121.7×84.6×49 mm, excluding protrusions
Weight detail
Approximately 335 g body only; 383 g with supplied battery and memory card, without eyecup
Materials
Engineering-plastic body; no weather sealing, reported by Photography Blog
Colours
Black or silver
In the box
Body, BLS-50 battery, USB cable, shoulder strap, USB adapter and documentation; regional plug variants apply

Pros and cons

Pros

  • Five-axis sensor stabilisation
  • Electronic viewfinder and twin control dials
  • In-camera USB charging

Cons

  • No microphone or headphone socket
  • Selfie screen obstructed by a tripod
  • No weather sealing

Closest rivals

Model
TypeSensorMegapixelsLensVideoBody weightReleased
MirrorlessFour Thirds20.3Micro Four Thirds3840 × 2160 at 30 fps303 gJul 2020
MirrorlessFour Thirds20.33Micro Four Thirds4992 × 3744 at 29.97 fps647 gJun 2021
MirrorlessFour Thirds20.3Micro Four Thirds3840 × 2160 at 30 fps289 gJun 2021

Sources

  1. explore.omsystem.com/gb/en/om-d-e-m10-mark-iv
  2. jp.omsystem.com/product/dslr/om-omd/omd/em10mk4/spec.html
  3. olympus.co.uk/company/en/news/press-releases/2020-08-04t07-50-00/press-release-…
  4. olympus-global.com/news/2020/contents/nr01800/nr01800_00001.pdf
  5. olympusamerica.com/press-release/2020-08-04/olympus-om-dr-e-m10-mark-iv
  6. amateurphotographer.com/review/olympus-om-d-e-m10-mark-iv-review
  7. photographyblog.com/reviews/olympus_om_d_e_m10_mark_iv_review

Photo: emea.explore.omsystem.com

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