Review-Olympus E-M10 Mark IV: Very good entry-level camera

Review-Olympus E-M10 Mark IV: Very good entry-level camera

The Olympus OM-D E-M10 IV is a compact and beautiful camera, just like its predecessors. Its SLR-style body and numerous dials may seem imposing to some beginners, but Olympus has striven to make it easy to use for those who want to avoid those controls.Changes to the front grip can be subtle, but it’s safer and keeps your hand positioned higher on the camera for added stability. The thumb grip is substantial and is positioned to avoid accidentally pressing the buttons.
While the back of the camera has a conventional control design, the top plate is loaded, perhaps over-loaded. It has two control dials (good news for fans), a dial in mode and three small buttons, two of which can be customized.
The Olympus OM-D E-M10 Mark IV is the entry-level model of the Micro Four Thirds line of DSLR-style cameras (PEN models, such as the E-PL10, are rangefinder style). It’s a step up from the beginner-focused E-PL series, which offers more controls, better build quality, and a wider feature set. It sports a 20MP four-thirds sensor, body image stabilization, foldable touchscreen with a simple interface, and 4K video capture.Olympus OM-D E-M10 Mark IV

A useful addition is USB charging, something that has been absent from low-end Olympus cameras for too long. It takes hours to fully charge the battery, but being able to recharge on the road is a must these days. We would like Olympus to still include an external charger, which is now a $60 option.The camera does not support the USB PD standard, so it cannot be charged with high-power chargers.
Under a plastic port at the bottom of the camera you will find the battery compartment and memory card of the E-M10 IV. The memory card slot is compatible with high-speed UHS-II cards, a pleasant surprise for a camera in this price range, and you can understand how quickly it clears its buffer.
The OM-D E-M10 IV uses the venerable BLS-50 lithium-ion battery. The CIPA estimate for battery life is 360 shots per charge using the LCD screen (numbers with the viewfinder are not published), which is above average. In most situations, you will be able to take more photos than advertised, although frequent use of Wi-Fi can cause the opposite.

With its body stabilizer, the Olympus OM-D E-M10 Mark IV is a solid choice for those looking for high-quality 4K video images and easy-to-capture capture. The feature set isn’t the most robust (nor would we expect it to be), but off-camera images that use the “Natural” profile are generally really nice. We’d love to see the microphone and headphone jacks because they’re sadly absent.Olympus E-M10 Mark IV
In terms of video image quality, the Olympus OM-D E-M10 Mark IV camera works quite decently in its 4K mode of 30 frames per second. There are a lot of fine details recorded, the color is good, and both the sliding shutter and the fake color artifacts, although present, are quite minimal.
One of the main changes that Olympus highlighted in its announcement of the E-M10 IV was its improvements in autofocus, and especially in continuous AF monitoring. The company has also improved its face and eye detection algorithms, particularly when faces are detected from extreme angles.
The good news is that when this happened, releasing and then pressing the shutter button again would normally cause the focus to reopen fairly quickly and the tracking could continue once again, with maybe only a couple of frames lost. But there is no doubt that the continuous AF monitoring of the Olympus OM-D E-M10 Mark IV is still not up to par with the hybrid phase detection systems used by the competition.
The Olympus E-M10 IV has a lot: it is affordable, very compact and lightweight and combines very well with its equally compact and lightweight 14-42mm kit lens. And it offers quite good image quality overall, as well as taking a significant step forward from its predecessor in terms of detail collection capabilities and high ISO noise levels.
Some more experienced photographers, however, will find it a bit limiting both because of its lack of customization, and because of the way some features like exposure bracketing are hijacked in SEMI-GUIDED AP (Advanced Photo) mode, where they can’t be combined with features in non-AP mode like exposure in priority mode. But for your target customer, it offers a good breadth of functionality and plenty of room to grow, while offering enough hand-in-hand support to make even relatively complex features accessible. Video: Olympus/YouTube

Frequent sports shooters will probably want to look for the Olympus line or a rival brand, as we find that the autofocus tracking of the E-M10 IV remains something of a weak point. That said, its autofocus is likely to be up to the task of filming school sports and family activities, subjects that are probably more typical of Olympus’ lens family documentary filmmakers.
The Olympus OM-D E-M10 Mark IV is a beautiful entry-level camera with some useful aids for new users, but with enough controls to provide room to grow. While its autofocus and burst speeds are right around the competition, its distinctive feature is an effective stabilizer on the body, especially useful for low-light still images and portable video shooting. Overall, the E-M10 IV is a good photo companion for a variety of users. Photo: Olympus

Product Type Micro Four Thirds interchangeable lens system camera
Memory SD, SDHC (UHS-I / II), SDXC (UHS-I / II)
Sensor Size 17.4 mm x 13.0 mm
Lens Mount Micro Four Thirds Mount

Image Sensor

Image Sensor Type 4/3 Live MOS Sensor
Number of Pixels Number of effective pixels: Approx. 20.3 million pixels
Total number of pixels: Approx. 21.8 million pixels
Aspect Ratio 4:3
Dust Reduction Supersonic Wave Filter (image sensor dust reduction system)

Still Photo Recording

Recording Format DCF2.0, Exif2.31
File Format JPEG, RAW (12-bit lossless compression), JPEG+RAW
Recording Image Size RAW: 5184 x 3888 / JPEG: 5184 x 3888 ~ 1280 x 960

Image Stabilisation System

Image Stabilisation Type Built-in 5-axis sensor-shift image stabilisation
Image Stabilisation Mode S-IS ON, OFF
Stabilisation Performance Compensation steps (In-body IS): 4.5

  • When using the M.Zuiko Digital ED 14-42mm F3.5-5.6 EZ
  • Focal length: 42mm (35mm equivalent: 84mm)
Focal Length Setting 1 setting

  • Lenses without communication function can be registered


Finder Type Eye-level OLED electronic viewfinder, approx. 2.36M dots
Field of View / Viewfinder Magnification Approx. 100% / Approx. 1.23x (-1m-1, 50mm lens, Infinity)
Eye Point / Diopter Adjustment Range Approx. 19.2mm (-1m-1, Distance from rear lens surface) / -4 ~ +2m-1
Display Grid Off / normal grid / trichotomy / golden grid / scale / diagonal / movie grid
Level Gauge Available
Finder Style 1 style
Brightness and Colour Temperature Control Adaptive brightness technology (EVF Auto Luminance) / ±2 level manual brightness control / ±3 level manual colour temperature control
Optional Eyecup Large Eyecup EP-16


Monitor Type 3.0-inch tilting monitor (electrostatic capacitance touch panel), Approx. 1037k dots (3:2)
Tilting Capability Tilt type: Upward tilting: Up to approx. 80 degrees
Downward tilting: Up to approx. 180 degrees (Selfie compatible)
Touch Control Shutter release, Touch AF (AF area selection, AF area size adjustment), AF targeting pad, Frame forward / backward, Magnified playback, Live Guide, ART / SCN / AP / Movie mode selection, Selfie Mode, Super Control Panel, Wi-Fi connection, Movie controls
Brightness / Color Temperature Control ±7 levels / ±7 levels
Colour Tone Select Vivid, Natural


AF System High-speed imager AF

  • Imager contrast AF
Focusing Point Contrast AF: 121 points
Focusing Point Selection Mode All target, Single target (Normal), Group target (9-area)
Focus Mode Single AF (S-AF), Continuous AF (C-AF), Manual Focus (MF), Single AF (S-AF+MF), AF tracking (C-AF+TR)
AF Targeting Pad Available
Magnified Frame AF 3x, 5x, 7x, 10x, 14x
Super Spot AF Available
Face Detection AF Available
Eye Detection AF Available

  • Close range eye priority
Manual Focus Assist Available
Peaking Function Colour: White, Black, Red or Yellow
AF Illuminator Available

Exposure Control (Still)

Metering System
(TTL Image Sensor Metering)
Digital ESP metering (324-area multi pattern metering), Center-weighted average metering, Spot metering, Spot metering with highlight / shadow control
Metering Range Lowest luminance (EV): -2
Highest luminance (EV): 20

  • ISO approx. 100, with F2.8 lens
ISO Sensitivity (AUTO) LOW (approx.100) ‐ 6400
ISO Sensitivity (MANUAL) LOW (approx.100), 200 – 25600
Exposure Compensation ±5 EV (1/3 EV steps)

  • Live View only reflects up to ±3 EV steps
AE Lock Locks with a half-press of the shutter button (can be set to AEL/AFL button as well)


Focal-Plane Shutter (Mechanical Shutter) 1/4000 – 60 sec., Live Bulb, Live Time, Live Composite
Electronic First Curtain Shutter 1/320 – 60 sec.

  • Shutter speed faster than 1/320 sec. will be automatically switched to mechanical first curtain shutter
Electronic Shutter (Silent Mode) 1/16000 – 60 sec.

  • Settings for sound, AF illuminator, and flash can be set to ON / OFF separately, default setting is Off for all three


Sequential Shooting Maximum Speed [Sequential shooting H] approx. 8.7 fps
[Sequential shooting L] approx. 5 fps
[Anti-shock sequential shooting L] approx. 4.8 fps
[Silent sequential shooting H] approx. 15 fps
[Silent sequential shooting L] approx. 6.3 fps

  • When using the M.Zuiko Digital ED 14-42mm F3.5-5.6 EZ for Sequential shooting H and Silent sequential shooting H
  • When using the M.Zuiko Digital ED 12-40mm f/2.8 PRO for Sequential shooting L, Anti-shock sequential shooting L and Silent sequential shooting L
Sequential Shooting Maximum Recordable Frames Sequential shooting H at max. fps [RAW]: until card is full
Sequential shooting H at max. fps [JPEG default]: until card is full
Sequential shooting L at max. fps [RAW]: until card is full
Sequential shooting L at max. fps [JPEG default]: until card is full
Silent sequential shooting H at max. fps [JPEG LF]: approx. 49
Silent sequential shooting H at max. fps [RAW]: approx. 42
Silent sequential shooting L at max. fps [RAW]: approx. 945
Silent sequential shooting L at max. fps [JPEG LF]: until card is full

  • According to Olympus test conditions, using M.Zuiko Digital ED 12-40mm F2.8 PRO and Toshiba SDHC UHS-II card SDXU-D032G


Flash Intensity Control Method TTL Auto, Manual, Auto, Super FP (FP-TTL AUTO, FP-MANUAL)

  • Auto and Super FP are available on the external flash
Built-in Flash TTL Flash, GN = 5.1 (ISO 100・m) / GN = 7.2 (ISO 200・m)
RC Commander Function Available
Flash Mode Redeye, Fill-in, Flash Off, Red-eye Slow sync. (1st curtain), Slow sync. (1st curtain), Slow sync. (2nd curtain), Manual (1/1 (FULL) – 1/64)
Synchronisation Speed 1/250 sec.[*] or slower

  • When using Super FP: 1/125 – 1/4000 sec.
  • When using electronic shutter: 1/20 sec.
Flash Intensity ±3 EV (1/3 EV steps)
Compatible External Flash FL-50R, FL-36R, FL-20, FL-14, FL-300R, FL-600R, FL-900R, STF-8, FL-700WR

Wireless Flash Control

Olympus Wireless RC Flash System
(Triggered and Controlled by Flash)
Compatible External Flash
FL-50R, FL-36R, FL-300R, FL-600R, FL-900R, FL-700WR
Commander Flashes FL-600R, FL-900R, STF-8, FL-700WR
Channel 4 channels
Group No. 4 groups (External flash 3 groups + commander flash)
Radio Wireless Control Available
External Flash Intensity Type TTL Auto, Manual, Auto, FP-TTL AUTO, FP-MANUAL

White Balance

White Balance Mode Auto WB, Presets WB (6 types), Capture WB (number of saved capture WB: 4), Custom WB (Kelvin setting)
White Balance Compensation ±7 steps along A-B / G-M axis

  • Except for Custom WB

Colour Mode

Colour Matrix sRGB, Adobe RGB

Picture Mode

Picture Mode i-Finish, Vivid, Natural, Flat, Portrait, Monotone, Custom, e-Portrait, Color Creator, Art Filters
Gradation 4 types (Auto, Normal, High Key, Low Key)

  • Except when using e-Portrait, Art Filters, Color Creator
Highlight and Shadow Control Adjustable at ±7 steps each for highlight, shadow, and midtone

Art Filter

Art Filter Pop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Watercolor, Vintage, Partial Color (18 colours), Bleach Bypass, Instant Film
Art Filter Fine Tune Pop Art(Pop Art I only), Soft Focus

Color Creator

Color Creator Available


Exposure Bracketing 3 frames (1.0 EV steps), 5 frames (0.7 EV steps)

  • Available as AE Bracketing in Advanced Photo mode.
Focus Bracketing 8 frames (Available in Advanced Photo mode, focus step is selectable from 5 or 10)

  • Available as Multi Focus Shot in Scene mode and Focus Bracketing in Advanced Photo mode.

HDR Function

HDR (Auto composite) HDR1, HDR2 (painting-like)

  • ISO sensitivity is fixed at 200.
    Available as Backlight HDR in Scene mode and HDR in Advanced Photo mode.

Keystone Compensation

Keystone Compensation Available as Keystone Compensation in Advanced Photo mode.

Live Bulb / Live Time

Live Bulb / Live Time Update interval time 0.5 sec. – 60 sec.

Live Composite

Live Composite Update interval time 0.5 sec. – 60 sec.

Interval Mode

Interval Mode Creating Time-lapse movie is possible

Multiple Exposure

Number of Frames 2 frames
Auto Gain Available
Overlay Available

Multi Aspect

Multi Aspect 4:3 (Default), 3:2, 16:9, 1:1, 3:4

One Push Tele-Converter

Magnification 2x

Level Gauge

Detection 2-axis (horizontal / vertical)

Video Recording

Video Recording Format MOV (MPEG-4AVC / H.264)
3840 x 2160 (4K) 30p, 25p, 24p / IPB (approx. 102Mbps)
1920 x 1080 (FHD) 30p, 25p, 24p / IPB (approx. 52Mbps, approx. 30MBps, approx. 18Mbps)
60p, 50p / IPB (approx. 52Mbps, approx. 30MBps, approx. 18Mbps)
1280 x 720 (HD) 60p, 50p, 30p, 25p, 24p / IPB (approx. 26Mbps, approx. 14MBps, approx. 10Mbps)
Maximum Recording Time Approx. 29 min.
Art Filter Movie Available

  • Frame rates may drop when certain Art Filters are used
One-push Movie Digital Converter Not available
Time Lapse Movie 3840 x 2160 (4K) / 5 fps
1920 x 1080 (FHD) / 5 fps, 10 fps, 15 fps
1280 x 720 (HD) / 5 fps, 10 fps, 15 fps, 30 fps
High Speed Movie 120 fps (1280 x 720 / MOV)
Image Stabilisation for Video Recording M-IS1 (multi motion IS by Image sensor shift and electronic image stabiliser), M-IS2 (Multi motion IS by Image sensor shift), OFF

  • Field of view varies when using M-IS1.
Grid Line Available
Focus Peaking 4 colours
Live View Output via HDMI Monitor mode

  • Camera display is turned off when connected by HDMI.
AE Lock Available

Recording (Sound)

Sound Recording Format Wave Format (Stereo linear PCM / 16-bit, Sampling frequency 48 kHz)
Microphone / Speaker Built-in stereo microphone / built-in mono speaker
Microphone Function Wind noise reduction, recording volume

  • Audio dubbing possible for still pictures (up to 30 sec.)

Wi-Fi Function

GPS info. Function Via GPS smartphone
Wireless Shooting
(Liveview Remote controle)
Live View, Rec View, Wireless Touch AF shutter, Self Timer (w / Countdown guidance, Sequential shooting, movie recording capability), Wireless Release, Movie Recording, Power Off
Wireless Shooting
(Wireless release Remote controle)
Not available
Image Share Marking function for image share.
Easy Connection Connect using a QR code

Bluetooth Function

Easy Connection Connect using Bluetooth
Simple Image Transfer
(Power-Off Standby)
With the power turned off, automatically imported using the marking function for image share / remotely viewed. (Activated via Bluetooth and imported via Wi-Fi)
Wireless Shooting
(Wireless Release Remote Control)
Wireless release (pressing the shutter button halfway / fully), Movie start / stop


Playback Mode Single-frame, information display, index display (4 / 9 / 25 / 100 frames), calendar, enlargement (2x – 14x), movie (with sound, FF / REW / Pause), Slideshow (with sound and music), picture rotation (auto), Dubbed audio playback
Information Display Histogram (independent luminance / RGB available), Highlight / Shadow point warning, AF frame, Photographic information, OFF

Image Editing

Movie Editing Function Trimming (beginning / end) / in-movie image extraction (4K only)
Editing Function RAW data edit, Gradation auto, Monochrome, Sepia, Red-eye fix, Saturation, Resize (1280 x 960, 640 x 480, 320 x 240), Trimming, Aspect, e-Portrait, Image Overlay, Post recording
RAW Data Edit RAW data edit based on settings of the camera (including e-Portrait, Color Creator, Art Filter, ART-BKT)


Print Function Print reservation (DPOF)

Menu Language

Languages 34 languages selectable :
English, French, German, Spanish, Italian, Japanese, Korean, Traditional Chinese, Simplified Chinese, Russian, Czech, Dutch, Danish, Polish, Portuguese, Swedish, Norwegian, Finnish, Croatian, Slovenian, Hungarian, Greek, Slovakian, Turkish, Latvian, Estonian, Lithuanian, Ukrainian, Serbian, Bulgarian, Rumanian, Indonesian, Malay, Thai

Input / Output

USB / Remote Controller Connector USB Micro-B / None
HDMI Connector Micro HDMI (type D)
Flash Attachment Hot shoe
Wireless LAN Built-in (IEEE 802.11b/g/n)
Bluetooth Built-in (Bluetooth Ver.4.2 Bluetooth Low Energy)
PC Interface USB2.0 (Hi-Speed)

Power Requirements

Battery BLS-50 Li-ion battery
Battery Status Display Remaining power (4 steps)
AC Adapter F-5AC USB-AC adapter (bundled)
USB Charging Built-in battery can be charged with USB

  • When the camera power is off
  • Performance varies depending on different USB devices
Sleep Mode 1 / 3 / 5 min., Off
Number of Recordable Images Approx. 360 shots

  • With Toshiba SDXU-D032G and a bundled battery, based on CIPA test standards
Battery Life for Movie Recording Under standard JEITA testing: 80 min.

  • When repeatedly recording at the maximum time of 29 minutes

When zoom and other operational functions are not used: 140 min.

  • When repeatedly recording at the maximum time of 29 minutes

Dimensions / Weight

Dimensions 121.7mm(W) x 84.6mm(H) x 49mm(D)

  • Based on CIPA standards: excludes protrusions
Weight Based on CIPA standards, with a bundled battery and 1 memory card, without eyecup): 383 g
Body only: 335 g

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