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Olympus E-PM1 vs Pentax K-1

Portability
89
Imaging
48
Features
52
Overall
49
Olympus PEN E-PM1 front
 
Pentax K-1 front
Portability
55
Imaging
76
Features
82
Overall
78

Olympus E-PM1 vs Pentax K-1 Key Specs

Olympus E-PM1
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 265g - 110 x 64 x 34mm
  • Announced November 2011
  • Updated by Olympus E-PM2
Pentax K-1
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Screen
  • ISO 100 - 204800
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 1010g - 137 x 110 x 86mm
  • Revealed February 2016
  • Successor is Pentax K-1 II
Photography Glossary

Olympus E-PM1 vs Pentax K-1 Overview

Here is a comprehensive review of the Olympus E-PM1 and Pentax K-1, former being a Entry-Level Mirrorless while the latter is a Advanced DSLR by brands Olympus and Pentax. There exists a substantial gap among the image resolutions of the E-PM1 (12MP) and K-1 (36MP) and the E-PM1 (Four Thirds) and K-1 (Full frame) use different sensor size.

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The E-PM1 was released 5 years prior to the K-1 and that is a fairly big difference as far as camera technology is concerned. Both the cameras offer different body type with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Pentax K-1 being a Mid-size SLR camera.

Before going straight into a detailed comparison, below is a concise summation of how the E-PM1 grades vs the K-1 with regards to portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-PM1 over the Pentax K-1

 E-PM1 K-1 

Reasons to pick Pentax K-1 over the Olympus E-PM1

 K-1 E-PM1 
RevealedFebruary 2016November 2011Fresher by 51 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen sizing3.2"3"Bigger screen (+0.2")
Screen resolution1037k460kClearer screen (+577k dot)

Common features in the Olympus E-PM1 and Pentax K-1

 E-PM1 K-1 
Manual focus Dial precise focusing
Selfie screen Missing selfie screen
Touch screen Missing Touch screen

Olympus E-PM1 vs Pentax K-1 Physical Comparison

For those who are planning to carry your camera regularly, you'll need to factor its weight and proportions. The Olympus E-PM1 enjoys physical measurements of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") having a weight of 265 grams (0.58 lbs) whilst the Pentax K-1 has measurements of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") along with a weight of 1010 grams (2.23 lbs).

Take a look at the Olympus E-PM1 and Pentax K-1 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an ILC will change based on the lens you have attached during that time. Underneath is the front view sizing comparison of the E-PM1 and the K-1.

Olympus E-PM1 vs Pentax K-1 size comparison

Looking at dimensions and weight, the portability rating of the E-PM1 and K-1 is 89 and 55 respectively.

Olympus E-PM1 vs Pentax K-1 top view buttons comparison

Olympus E-PM1 vs Pentax K-1 Sensor Comparison

Normally, it is very hard to visualize the gap in sensor sizing simply by seeing specifications. The photograph underneath should give you a better sense of the sensor sizing in the E-PM1 and K-1.

To sum up, both of those cameras offer different resolutions and different sensor sizing. The E-PM1 featuring a smaller sensor is going to make achieving shallower depth of field trickier and the Pentax K-1 will show more detail as a result of its extra 24 Megapixels. Higher resolution can also enable you to crop photographs a little more aggressively. The older E-PM1 will be behind with regard to sensor innovation.

Olympus E-PM1 vs Pentax K-1 sensor size comparison

Olympus E-PM1 vs Pentax K-1 Screen and ViewFinder

Olympus E-PM1 vs Pentax K-1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-PM1 as a Portrait photography camera
Pentax K-1 as a Portrait photography camera
60
you can focus manually
decent sensor size (Four Thirds)
includes face detect autofocus
saves RAW formats
low resolution sensor (12MP)
85
focusing manually
resolution is amazing (36 megapixels)
sensor size is large (Full frame)
comes with face detection focus
delivers RAW formats
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Street Comparison

Olympus E-PM1 Street photography highlights
Pentax K-1 Street photography highlights
75
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
saves RAW formats
screen is fixed
70
fully articulated screen
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
delivers RAW formats
weather sealing
good high ISO (204,800)
heavier than average in class (1,010g)
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Sports Comparison

Sports photography with Olympus E-PM1
Sports photography with Pentax K-1
49
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
includes tracking focus
continuous shooting slow (6.0 frames per second)
low resolution sensor (12 megapixels)
does not have phase detect autofocus
76
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
resolution is amazing (36 megapixels)
sensor size is large (Full frame)
comes with tracking autofocus
weather sealing
sensor has phase detect auto focus
painfully slow continuous shooting (4.4 frames/s)
terrible battery life (760 per charge)
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Travel Comparison

Travel photography with Olympus E-PM1
Travel photography with Pentax K-1
45
lack of Timelapse mode
low resolution sensor (12MP)
doesn't offer selfie friendly screen
53
weather sealing
resolution is amazing (36 megapixels)
terrible battery life (760 per charge)
heavier than average in class (1,010g)
display is not selfie friendly
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Landscape Comparison

Olympus E-PM1 Landscape photography advice
Pentax K-1 Landscape photography advice
65
you can focus manually
change lenses (Micro Four Thirds mount)
pretty good screen size (3")
has image stabilization (Sensor based)
decent sensor size (Four Thirds)
saves RAW formats
low resolution sensor (12 megapixels)
lack of Timelapse mode
81
focusing manually
interchangeable lenses (Pentax KAF2 mount)
nice screen size (3.2 inch)
image stabilization (Sensor based 5-axis)
resolution is amazing (36 megapixels)
sensor size is large (Full frame)
doesnt have anti aliasing filter
good high ISO (204,800)
delivers RAW formats
weather sealing
has dual storage slots
terrible battery life (760 CIPA)
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Vlogging Comparison

Olympus E-PM1 Vlogging features
Pentax K-1 Vlogging features
34
has image stabilization (Sensor based)
includes face detect autofocus
high quality video (1920 x 1080 resolution)
doesn't offer selfie friendly screen
lack of microphone support
31
image stabilization (Sensor based 5-axis)
comes with face detection focus
high quality video (1920 x 1080 pxls)
includes external mic jack
display is not selfie friendly
heavier than average in class (1,010 grams)
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Olympus E-PM1 vs Pentax K-1 Specifications

Detailed spec comparison table for Olympus E-PM1 and Pentax K-1
 Olympus PEN E-PM1Pentax K-1
General Information
Manufacturer Olympus Pentax
Model type Olympus PEN E-PM1 Pentax K-1
Type Entry-Level Mirrorless Advanced DSLR
Announced 2011-11-23 2016-02-17
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Powered by TruePic VI -
Sensor type CMOS CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.3 x 13mm 35.9 x 24mm
Sensor surface area 224.9mm² 861.6mm²
Sensor resolution 12 megapixels 36 megapixels
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 4032 x 3024 7360 x 4912
Highest native ISO 12800 204800
Lowest native ISO 100 100
RAW pictures
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 35 33
Cross type focus points - 25
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Crop factor 2.1 1
Screen
Range of display Fixed Type Fully Articulated
Display sizing 3 inches 3.2 inches
Resolution of display 460k dot 1,037k dot
Selfie friendly
Liveview
Touch functionality
Display technology HyperCrystal LCD AR(Anti-Reflective) coating -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.7x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/4000s 1/8000s
Continuous shutter speed 6.0fps 4.4fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash distance no built-in flash no built-in flash
Flash settings Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Manual (3 levels) Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync
Hot shoe
AEB
White balance bracketing
Fastest flash sync 1/160s 1/200s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p)
Highest video resolution 1920x1080 1920x1080
Video file format AVCHD, Motion JPEG MPEG-4, H.264
Mic input
Headphone input
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Built-in
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 265 grams (0.58 lbs) 1010 grams (2.23 lbs)
Dimensions 110 x 64 x 34mm (4.3" x 2.5" x 1.3") 137 x 110 x 86mm (5.4" x 4.3" x 3.4")
DXO scores
DXO Overall rating 52 96
DXO Color Depth rating 21.0 25.4
DXO Dynamic range rating 10.3 14.6
DXO Low light rating 499 3280
Other
Battery life 330 images 760 images
Battery format Battery Pack Battery Pack
Battery ID BLS-5 D-LI90
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec, custom)
Time lapse recording
Type of storage SD/SDHC/SDXC Dual SD/SDHC/SDXC (UHS-I)
Storage slots Single Two
Cost at release $499 $1,499