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Olympus E-M10 III vs Pentax K-7

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Pentax K-7 front
Portability
60
Imaging
54
Features
69
Overall
60

Olympus E-M10 III vs Pentax K-7 Key Specs

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Released August 2017
  • Earlier Model is Olympus E-M10 II
  • Successor is Olympus E-M10 IV
Pentax K-7
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 2000 (Raise to 6400)
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 750g - 131 x 97 x 73mm
  • Announced October 2009
  • Successor is Pentax K-5
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Olympus E-M10 III vs Pentax K-7 Overview

Lets examine more in depth at the Olympus E-M10 III versus Pentax K-7, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by brands Olympus and Pentax. The resolution of the E-M10 III (16MP) and the K-7 (15MP) is pretty comparable but the E-M10 III (Four Thirds) and K-7 (APS-C) possess different sensor size.

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The E-M10 III was announced 8 years after the K-7 which is a fairly big difference as far as camera technology is concerned. Both the cameras offer different body type with the Olympus E-M10 III being a SLR-style mirrorless camera and the Pentax K-7 being a Mid-size SLR camera.

Before diving in to a detailed comparison, below is a brief synopsis of how the E-M10 III grades against the K-7 in relation to portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M10 III over the Pentax K-7

 E-M10 III K-7 
AnnouncedAugust 2017October 2009Newer by 97 months
Screen typeTiltingFixed Tilting screen
Screen resolution1040k921kClearer screen (+119k dot)
Touch screen Quickly navigate

Reasons to pick Pentax K-7 over the Olympus E-M10 III

 K-7 E-M10 III 

Common features in the Olympus E-M10 III and Pentax K-7

 E-M10 III K-7 
Manual focus Dial accurate focus
Screen sizing3"3"Equivalent screen size
Selfie screen Neither has selfie screen

Olympus E-M10 III vs Pentax K-7 Physical Comparison

When you are aiming to travel with your camera frequently, you need to factor in its weight and volume. The Olympus E-M10 III has outside measurements of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") along with a weight of 410 grams (0.90 lbs) whilst the Pentax K-7 has sizing of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 750 grams (1.65 lbs).

Check out the Olympus E-M10 III versus Pentax K-7 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary based on the lens you are utilizing at that time. Following is the front view measurement comparison of the E-M10 III versus the K-7.

Olympus E-M10 III vs Pentax K-7 size comparison

Taking into account dimensions and weight, the portability score of the E-M10 III and K-7 is 80 and 60 respectively.

Olympus E-M10 III vs Pentax K-7 top view buttons comparison

Olympus E-M10 III vs Pentax K-7 Sensor Comparison

Sometimes, it can be tough to picture the difference in sensor dimensions only by seeing technical specs. The pic underneath will help provide you a far better sense of the sensor measurements in the E-M10 III and K-7.

As you have seen, both of the cameras offer different megapixel count and different sensor dimensions. The E-M10 III using its smaller sensor is going to make getting shallow depth of field trickier and the Olympus E-M10 III will show greater detail with its extra 1MP. Higher resolution will allow you to crop shots a little more aggressively. The more recent E-M10 III should have a benefit with regard to sensor tech.

Olympus E-M10 III vs Pentax K-7 sensor size comparison

Olympus E-M10 III vs Pentax K-7 Screen and ViewFinder

Olympus E-M10 III vs Pentax K-7 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 III as a Portrait photography camera
Pentax K-7 as a Portrait photography camera
73
manual focus
resolution is good (16 megapixels)
sensor size is decent (Four Thirds)
features face detection focus
saves RAW files
72
has manual focus
decent megapixels (15 megapixels)
sensor size is good (APS-C)
provides face detect focus
exports RAW formats
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Street Comparison

Olympus E-M10 III Street photography features
Pentax K-7 Street photography features
77
screen tilts up and down
has image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
saves RAW files
comes with touch to focus
above average ISO range (25,600)
heavier than competition in class (410 grams)
66
built in image stabilization (Sensor based)
sensor size is good (APS-C)
exports RAW formats
environment proof
screen does not articulate
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Sports Comparison

Sports photography with Olympus E-M10 III
Sports photography with Pentax K-7
69
quiet shutter (1/16,000s)
has image stabilization (Sensor based 5-axis)
resolution is good (16 megapixels)
sensor size is decent (Four Thirds)
features tracking autofocus
doesn't have phase detect auto focus
69
max shutter speed is good (1/8,000s)
built in image stabilization (Sensor based)
decent megapixels (15MP)
sensor size is good (APS-C)
environment proof
comes with phase detect auto focus
max fps low (5.0 frames per second)
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Travel Comparison

Olympus E-M10 III Travel photography details
Pentax K-7 Travel photography details
67
comes with touch to focus
resolution is good (16 megapixels)
has built in flash
heavier than competition in class (410g)
display isn't selfie friendly
64
environment proof
decent megapixels (15 megapixels)
flash built-in
screen is not selfie friendly
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Landscape Comparison

Landscape photography with Olympus E-M10 III
Landscape photography with Pentax K-7
80
manual focus
switch lenses (Micro Four Thirds mount)
good sized screen (3 inch)
has image stabilization (Sensor based 5-axis)
resolution is good (16 megapixels)
sensor size is decent (Four Thirds)
above average ISO range (25,600)
saves RAW files
77
has manual focus
change lenses (Pentax KAF2 mount)
nice screen size (3 inch)
built in image stabilization (Sensor based)
decent megapixels (15 megapixels)
sensor size is good (APS-C)
exports RAW formats
environment proof
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Vlogging Comparison

Vlogging with Olympus E-M10 III
Vlogging with Pentax K-7
32
screen is touchscreen
has image stabilization (Sensor based 5-axis)
features face detection focus
high res video (3840 x 2160 pxls)
display isn't selfie friendly
doesn't have external mic socket
heavier than competition in class (410 grams)
25
built in image stabilization (Sensor based)
provides face detect focus
screen is not selfie friendly
low quality video (1280 x 720 resolution)
doesn't have mic port
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Olympus E-M10 III vs Pentax K-7 Specifications

Detailed spec comparison table for Olympus E-M10 III and Pentax K-7
 Olympus OM-D E-M10 Mark IIIPentax K-7
General Information
Manufacturer Olympus Pentax
Model type Olympus OM-D E-M10 Mark III Pentax K-7
Class Entry-Level Mirrorless Advanced DSLR
Released 2017-08-31 2009-10-02
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Processor TruePic VIII Prime II
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.4 x 13mm 23.4 x 15.6mm
Sensor area 226.2mm² 365.0mm²
Sensor resolution 16 megapixels 15 megapixels
Anti alias filter
Aspect ratio 4:3 3:2
Highest resolution 4608 x 3456 4672 x 3104
Highest native ISO 25600 2000
Highest boosted ISO - 6400
Min native ISO 200 100
RAW data
Min boosted ISO 100 -
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 121 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Available lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Screen type Tilting Fixed Type
Screen diagonal 3 inches 3 inches
Screen resolution 1,040k dot 921k dot
Selfie friendly
Liveview
Touch function
Screen technology - TFT color LCD with AR coating
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.62x 0.61x
Features
Lowest shutter speed 60 seconds 30 seconds
Highest shutter speed 1/4000 seconds 1/8000 seconds
Highest silent shutter speed 1/16000 seconds -
Continuous shooting speed 8.6 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash distance 5.80 m (at ISO 100) 13.00 m
Flash settings Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off Auto, On, Off, Red-eye, Slow Sync, Rear Curtain, Wireless
External flash
AEB
WB bracketing
Highest flash sync 1/250 seconds 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 1280 x 720 (30 fps), 1536 x 1024 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Highest video resolution 3840x2160 1280x720
Video data format MPEG-4, H.264 Motion JPEG
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410 grams (0.90 pounds) 750 grams (1.65 pounds)
Dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 131 x 97 x 73mm (5.2" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 61
DXO Color Depth rating not tested 22.6
DXO Dynamic range rating not tested 10.6
DXO Low light rating not tested 536
Other
Battery life 330 photographs 980 photographs
Type of battery Battery Pack Battery Pack
Battery ID BLS-50 D-LI90
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC (UHS-I/II supported) SD/SDHC/MMC
Storage slots Single Single
Launch pricing $650 $599