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Pentax K-5 II vs Pentax RZ18

Portability
60
Imaging
58
Features
82
Overall
67
Pentax K-5 II front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Pentax K-5 II vs Pentax RZ18 Key Specs

Pentax K-5 II
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 12800 (Increase to 51200)
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 760g - 131 x 97 x 73mm
  • Announced June 2013
  • Older Model is Pentax K-5
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
  • Revealed September 2011
Photography Glossary

Pentax K-5 II vs Pentax RZ18 Overview

Lets look a little more in depth at the Pentax K-5 II versus Pentax RZ18, one is a Advanced DSLR and the other is a Small Sensor Superzoom and they are both created by Pentax. The image resolution of the K-5 II (16MP) and the RZ18 (16MP) is fairly close but the K-5 II (APS-C) and RZ18 (1/2.3") have different sensor sizes.

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The K-5 II was manufactured 22 months after the RZ18 making them a generation away from one another. Each of these cameras feature different body design with the Pentax K-5 II being a Mid-size SLR camera and the Pentax RZ18 being a Compact camera.

Before diving into a more detailed comparison, here is a concise highlight of how the K-5 II scores against the RZ18 with regards to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-5 II over the Pentax RZ18

 K-5 II RZ18 
RevealedJune 2013September 2011Newer by 22 months
Display resolution921k460kCrisper display (+461k dot)

Reasons to pick Pentax RZ18 over the Pentax K-5 II

 RZ18 K-5 II 

Common features in the Pentax K-5 II and Pentax RZ18

 K-5 II RZ18 
Focus manually Very accurate focusing
Display typeFixed Fixed Fixed display
Display size3"3"Same display dimensions
Selfie screen Lacking selfie screen
Touch display Lacking Touch display

Pentax K-5 II vs Pentax RZ18 Physical Comparison

For those who are going to travel with your camera, you'll have to think about its weight and size. The Pentax K-5 II provides outer dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 760 grams (1.68 lbs) while 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).

See the Pentax K-5 II versus Pentax RZ18 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you use during that time. Below is a front view sizing comparison of the K-5 II against the RZ18.

Pentax K-5 II vs Pentax RZ18 size comparison

Considering dimensions and weight, the portability rating of the K-5 II and RZ18 is 60 and 92 respectively.

Pentax K-5 II vs Pentax RZ18 top view buttons comparison

Pentax K-5 II vs Pentax RZ18 Sensor Comparison

More often than not, it is tough to imagine the difference in sensor dimensions just by looking through technical specs. The picture here might offer you a clearer sense of the sensor dimensions in the K-5 II and RZ18.

As you can tell, each of the cameras feature the identical megapixels but different sensor dimensions. The K-5 II has got the larger sensor which should make obtaining shallower DOF easier. The more recent K-5 II should have an edge when it comes to sensor tech.

Pentax K-5 II vs Pentax RZ18 sensor size comparison

Pentax K-5 II vs Pentax RZ18 Screen and ViewFinder

Pentax K-5 II vs Pentax RZ18 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-5 II Portrait photography factors
Pentax RZ18 Portrait photography factors
74
focusing manually
good megapixels (16 megapixels)
good sensor size (APS-C)
has face detection focusing
saves RAW files
36
manual focus
resolution is good (16MP)
manual exposure not available
can't use external flash
sensor size is very small (1/2.3")
has no RAW support
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Street Comparison

Pentax K-5 II Street photography information
Pentax RZ18 Street photography information
67
has image stabilization (Sensor based)
good sensor size (APS-C)
saves RAW files
weather proofing
no moving screen
65
built in image stabilization (Sensor-shift)
weather proofing
lighter than average in class (178 grams)
screen is fixed
sensor size is very small (1/2.3")
has no RAW support
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Sports Comparison

Pentax K-5 II as a Sports photography camera
Pentax RZ18 as a Sports photography camera
79
high shutter speed (1/8,000 seconds)
has image stabilization (Sensor based)
good megapixels (16MP)
good sensor size (APS-C)
has tracking autofocus
weather proofing
supports phase detect AF
47
long zoom range (25-450mm 18.0 x zoom)
built in image stabilization (Sensor-shift)
resolution is good (16 megapixels)
has tracking autofocus
weather proofing
continuous shooting slow (1.0 fps)
lack of shutter priority mode
sensor size is very small (1/2.3")
has no phase detect autofocus
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Travel Comparison

Pentax K-5 II Travel photography advice
Pentax RZ18 Travel photography advice
65
weather proofing
good megapixels (16MP)
built-in flash
display isn't selfie friendly
71
lighter than average in class (178g)
weather proofing
resolution is good (16 megapixels)
has built in flash
fairly wide (25mm)
long reach (450mm)
does not have Timelapse function
display is not selfie friendly
slow maximum aperture (f3.5)
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Landscape Comparison

Pentax K-5 II Landscape photography information
Pentax RZ18 Landscape photography information
79
focusing manually
switch lenses (Pentax KAF2 mount)
screen size is good (3 inches)
has image stabilization (Sensor based)
good megapixels (16MP)
good sensor size (APS-C)
saves RAW files
weather proofing
49
manual focus
fairly wide (25mm)
pretty good screen size (3")
built in image stabilization (Sensor-shift)
resolution is good (16 megapixels)
weather proofing
can't switch lens (fixed lens mount)
slow maximum aperture (f3.5)
manual exposure not available
sensor size is very small (1/2.3")
has no RAW support
does not have Timelapse function
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Vlogging Comparison

Pentax K-5 II Vlogging highlights
Pentax RZ18 Vlogging highlights
33
has image stabilization (Sensor based)
has face detection focusing
video resolution high (1920 x 1080 pxls)
comes with external mic jack
display isn't selfie friendly
30
fairly wide (25mm)
built in image stabilization (Sensor-shift)
lighter than average in class (178g)
slow maximum aperture (f3.5)
display is not selfie friendly
low video resolution (1280 x 720 resolution)
does not have external microphone port
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Pentax K-5 II vs Pentax RZ18 Specifications

Detailed spec comparison table for Pentax K-5 II and Pentax RZ18
 Pentax K-5 IIPentax Optio RZ18
General Information
Manufacturer Pentax Pentax
Model type Pentax K-5 II Pentax Optio RZ18
Class Advanced DSLR Small Sensor Superzoom
Announced 2013-06-04 2011-09-12
Body design Mid-size SLR Compact
Sensor Information
Chip Prime II -
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor measurements 23.7 x 15.7mm 6.08 x 4.56mm
Sensor area 372.1mm² 27.7mm²
Sensor resolution 16 megapixels 16 megapixels
Anti alias filter
Aspect ratio 3:2 1:1, 4:3 and 16:9
Highest Possible resolution 4928 x 3264 4608 x 3456
Maximum native ISO 12800 6400
Maximum enhanced ISO 51200 -
Minimum native ISO 100 80
RAW files
Minimum enhanced ISO 80 -
Autofocusing
Manual focusing
Touch to focus
Continuous AF
AF single
Tracking AF
Selective AF
Center weighted AF
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 11 9
Cross type focus points 9 -
Lens
Lens support Pentax KAF2 fixed lens
Lens zoom range - 25-450mm (18.0x)
Maximum aperture - f/3.5-5.9
Macro focusing distance - 4cm
Amount of lenses 151 -
Crop factor 1.5 5.9
Screen
Display type Fixed Type Fixed Type
Display diagonal 3 inches 3 inches
Display resolution 921k dot 460k dot
Selfie friendly
Liveview
Touch capability
Display tech TFT LCD monitor TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder type Optical (pentaprism) None
Viewfinder coverage 100 percent -
Viewfinder magnification 0.61x -
Features
Minimum shutter speed 30 seconds 4 seconds
Fastest shutter speed 1/8000 seconds 1/2000 seconds
Continuous shutter speed 7.0fps 1.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes -
Change WB
Image stabilization
Built-in flash
Flash distance 13.00 m (at ISO 100) 2.80 m
Flash settings Auto, On, Off, Red-eye, Slow sync, High speed, Rear curtain and Wireless Auto, On, Off, Red-eye, Soft
External flash
Auto exposure bracketing
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 480 (25, 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 format Motion JPEG Motion JPEG
Microphone jack
Headphone jack
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 760 gr (1.68 lbs) 178 gr (0.39 lbs)
Physical dimensions 131 x 97 x 73mm (5.2" x 3.8" x 2.9") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO Overall rating 82 not tested
DXO Color Depth rating 23.8 not tested
DXO Dynamic range rating 14.1 not tested
DXO Low light rating 1235 not tested
Other
Battery life 980 shots -
Form of battery Battery Pack -
Battery ID D-LI90 D-LI92
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec)
Time lapse shooting
Storage media SD/SDHC/SDXC SD/SDHC/SDXC, Internal
Storage slots Single Single
Retail pricing $830 $210