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Olympus E-M5 vs Pentax RZ18

Portability
81
Imaging
52
Features
70
Overall
59
Olympus OM-D E-M5 front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Olympus E-M5 vs Pentax RZ18 Key Specs

Olympus E-M5
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 425g - 122 x 89 x 43mm
  • Launched April 2012
  • Replacement is Olympus E-M5 II
Pentax RZ18
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Display
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 25-450mm (F3.5-5.9) lens
  • 178g - 97 x 61 x 33mm
  • Announced September 2011
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Olympus E-M5 vs Pentax RZ18 Overview

Lets look much closer at the Olympus E-M5 and Pentax RZ18, one being a Advanced Mirrorless and the other is a Small Sensor Superzoom by companies Olympus and Pentax. The image resolution of the E-M5 (16MP) and the RZ18 (16MP) is fairly similar but the E-M5 (Four Thirds) and RZ18 (1/2.3") feature different sensor sizing.

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The E-M5 was unveiled 8 months later than the RZ18 which means that they are both of a similar generation. Each of these cameras offer different body type with the Olympus E-M5 being a SLR-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before going in to a thorough comparison, below is a brief synopsis of how the E-M5 scores against the RZ18 in terms of portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-M5 over the Pentax RZ18

 E-M5 RZ18 
AnnouncedApril 2012September 2011Fresher by 8 months
Display typeTiltingFixed Tilting display
Display resolution610k460kCrisper display (+150k dot)
Touch friendly display Easily navigate

Reasons to pick Pentax RZ18 over the Olympus E-M5

 RZ18 E-M5 

Common features in the Olympus E-M5 and Pentax RZ18

 E-M5 RZ18 
Focus manually Very precise focus
Display sizing3"3"Equivalent display measurement
Selfie screen Absent selfie screen

Olympus E-M5 vs Pentax RZ18 Physical Comparison

For those who are intending to carry your camera frequently, you will want to factor its weight and size. The Olympus E-M5 has outer dimensions of 122mm x 89mm x 43mm (4.8" x 3.5" x 1.7") and a weight of 425 grams (0.94 lbs) and the Pentax RZ18 has specifications of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") and a weight of 178 grams (0.39 lbs).

Check out the Olympus E-M5 and Pentax RZ18 in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you have attached at that time. Underneath is the front view measurement comparison of the E-M5 compared to the RZ18.

Olympus E-M5 vs Pentax RZ18 size comparison

Looking at size and weight, the portability score of the E-M5 and RZ18 is 81 and 92 respectively.

Olympus E-M5 vs Pentax RZ18 top view buttons comparison

Olympus E-M5 vs Pentax RZ18 Sensor Comparison

In many cases, it is difficult to imagine the difference between sensor sizing just by reading a spec sheet. The graphic here will help offer you a far better sense of the sensor sizes in the E-M5 and RZ18.

As you can see, both cameras enjoy the same exact MP but different sensor sizing. The E-M5 uses the larger sensor which is going to make achieving shallower depth of field less difficult. The newer E-M5 provides an edge in sensor technology.

Olympus E-M5 vs Pentax RZ18 sensor size comparison

Olympus E-M5 vs Pentax RZ18 Screen and ViewFinder

Olympus E-M5 vs Pentax RZ18 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M5 Portrait photography advice
Pentax RZ18 Portrait photography advice
71
you can focus manually
decent sensor resolution (16MP)
sensor size is nice (Four Thirds)
offers face detection focusing
supports RAW files
36
focusing manually
good resolution (16MP)
lack of manual mode
cannot use external flash
small sensor (1/2.3")
doesn't have RAW support
Photography Glossary

Street Comparison

Olympus E-M5 Street photography highlights
Pentax RZ18 Street photography highlights
82
screen tilts
image stabilization (Sensor based 5-axis)
sensor size is nice (Four Thirds)
supports RAW files
supports focus via touch
environment proofing
above average ISO range (25,600)
65
image stabilization (Sensor-shift)
environment proof
lighter than competition (178 grams)
screen is fixed
small sensor (1/2.3")
doesn't have RAW support
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Sports Comparison

Olympus E-M5 Sports photography highlights
Pentax RZ18 Sports photography highlights
67
image stabilization (Sensor based 5-axis)
decent sensor resolution (16MP)
sensor size is nice (Four Thirds)
offers tracking autofocus
environment proofing
doesn't have phase detect AF
47
excellent zoom range (25-450mm 18.0 x zoom)
image stabilization (Sensor-shift)
good resolution (16MP)
features tracking autofocus
environment proof
max fps very slow (1.0 fps)
lack of shutter priority mode
small sensor (1/2.3")
doesn't have phase detect autofocus
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Travel Comparison

Olympus E-M5 Travel photography details
Pentax RZ18 Travel photography details
66
environment proofing
supports focus via touch
decent sensor resolution (16 megapixels)
does not have Time Lapse mode
does not have a selfie friendly screen
71
lighter than competition (178g)
environment proof
good resolution (16 megapixels)
flash built-in
quite wide (25mm)
very long reach (450mm)
doesn't have Timelapse function
does not posses selfie friendly display
sluggish maximum aperture (f3.5)
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Landscape Comparison

Olympus E-M5 Landscape photography features
Pentax RZ18 Landscape photography features
73
you can focus manually
swap lenses (Micro Four Thirds mount)
decent sized screen (3")
image stabilization (Sensor based 5-axis)
decent sensor resolution (16MP)
sensor size is nice (Four Thirds)
above average ISO range (25,600)
supports RAW files
environment proofing
does not have Time Lapse mode
49
focusing manually
quite wide (25mm)
screen size is good (3")
image stabilization (Sensor-shift)
good resolution (16 megapixels)
environment proof
can't swap lens (fixed lens mount)
sluggish maximum aperture (f3.5)
lack of manual mode
small sensor (1/2.3")
doesn't have RAW support
doesn't have Timelapse function
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Vlogging Comparison

Olympus E-M5 as a Vlogging camera
Pentax RZ18 as a Vlogging camera
34
touchscreen capability
image stabilization (Sensor based 5-axis)
offers face detection focusing
high res video (1920 x 1080 pixels)
does not have a selfie friendly screen
does not have external mic socket
30
quite wide (25mm)
image stabilization (Sensor-shift)
lighter than competition (178 grams)
sluggish maximum aperture (f3.5)
does not posses selfie friendly display
video res low (1280 x 720 pixels)
doesn't have external microphone socket
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Olympus E-M5 vs Pentax RZ18 Specifications

Detailed spec comparison table for Olympus E-M5 and Pentax RZ18
 Olympus OM-D E-M5Pentax Optio RZ18
General Information
Company Olympus Pentax
Model type Olympus OM-D E-M5 Pentax Optio RZ18
Class Advanced Mirrorless Small Sensor Superzoom
Launched 2012-04-30 2011-09-12
Physical type SLR-style mirrorless Compact
Sensor Information
Powered by TruePic VI -
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.3 x 13mm 6.08 x 4.56mm
Sensor area 224.9mm² 27.7mm²
Sensor resolution 16MP 16MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3 and 16:9
Highest Possible resolution 4608 x 3456 4608 x 3456
Maximum native ISO 25600 6400
Min native ISO 200 80
RAW support
Min enhanced ISO 100 -
Autofocusing
Focus manually
AF touch
AF continuous
AF single
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 35 9
Lens
Lens support Micro Four Thirds fixed lens
Lens zoom range - 25-450mm (18.0x)
Highest aperture - f/3.5-5.9
Macro focusing range - 4cm
Number of lenses 107 -
Focal length multiplier 2.1 5.9
Screen
Display type Tilting Fixed Type
Display size 3 inch 3 inch
Display resolution 610 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch capability
Display tech Touch control in electrostatic capacitance type OLED monitor TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 1,440 thousand dots -
Viewfinder coverage 100% -
Viewfinder magnification 0.58x -
Features
Min shutter speed 60 secs 4 secs
Max shutter speed 1/4000 secs 1/2000 secs
Continuous shutter rate 9.0fps 1.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes -
Custom WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 2.80 m
Flash settings Auto, On, Off, Red-Eye, Fill-in, Slow Sync (2), Manual (3 levels) Auto, On, Off, Red-eye, Soft
Hot shoe
Auto exposure bracketing
WB bracketing
Max flash synchronize 1/250 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Maximum video resolution 1920x1080 1280x720
Video file format H.264, Motion JPEG Motion JPEG
Microphone port
Headphone port
Connectivity
Wireless Eye-Fi Connected Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 425g (0.94 lbs) 178g (0.39 lbs)
Dimensions 122 x 89 x 43mm (4.8" x 3.5" x 1.7") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO Overall rating 71 not tested
DXO Color Depth rating 22.8 not tested
DXO Dynamic range rating 12.3 not tested
DXO Low light rating 826 not tested
Other
Battery life 360 photographs -
Battery type Battery Pack -
Battery ID BLN-1 D-LI92
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC SD/SDHC/SDXC, Internal
Card slots One One
Pricing at release $799 $210