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Pentax K-01 vs Pentax RZ18

Portability
76
Imaging
57
Features
68
Overall
61
Pentax K-01 front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Pentax K-01 vs Pentax RZ18 Key Specs

Pentax K-01
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 12800 (Increase to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 561g - 122 x 79 x 58mm
  • Revealed May 2012
Pentax RZ18
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 80 - 6400
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 25-450mm (F3.5-5.9) lens
  • 178g - 97 x 61 x 33mm
  • Launched September 2011
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Pentax K-01 vs Pentax RZ18 Overview

Below, we will be reviewing the Pentax K-01 and Pentax RZ18, one is a Entry-Level Mirrorless and the latter is a Small Sensor Superzoom and both are built by Pentax. The image resolution of the K-01 (16MP) and the RZ18 (16MP) is relatively similar but the K-01 (APS-C) and RZ18 (1/2.3") possess totally different sensor sizing.

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The K-01 was introduced 9 months after the RZ18 so they are of a similar generation. The two cameras come with different body type with the Pentax K-01 being a SLR-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before delving straight into a comprehensive comparison, below is a brief overview of how the K-01 scores versus the RZ18 with regards to portability, imaging, features and an overall score.

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Reasons to pick Pentax K-01 over the Pentax RZ18

 K-01 RZ18 
LaunchedMay 2012September 2011More modern by 9 months
Screen resolution921k460kClearer screen (+461k dot)

Reasons to pick Pentax RZ18 over the Pentax K-01

 RZ18 K-01 

Common features in the Pentax K-01 and Pentax RZ18

 K-01 RZ18 
Focus manually More accurate focus
Screen typeFixed Fixed Fixed screen
Screen dimension3"3"Identical screen measurement
Selfie screen Missing selfie screen
Touch screen Missing Touch screen

Pentax K-01 vs Pentax RZ18 Physical Comparison

In case you're looking to carry around your camera regularly, you will have to consider its weight and proportions. The Pentax K-01 offers outer dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") and a weight of 561 grams (1.24 lbs) while the Pentax RZ18 has measurements of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") accompanied by a weight of 178 grams (0.39 lbs).

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Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use during that time. Underneath is the front view dimensions comparison of the K-01 vs the RZ18.

Pentax K-01 vs Pentax RZ18 size comparison

Using size and weight, the portability rating of the K-01 and RZ18 is 76 and 92 respectively.

Pentax K-01 vs Pentax RZ18 top view buttons comparison

Pentax K-01 vs Pentax RZ18 Sensor Comparison

Often, it's tough to visualise the contrast between sensor sizes purely by reading specifications. The picture below should offer you a stronger sense of the sensor dimensions in the K-01 and RZ18.

Plainly, the 2 cameras have got the exact same MP albeit not the same sensor sizes. The K-01 offers the bigger sensor which will make getting shallow DOF simpler. The newer K-01 is going to have an advantage when it comes to sensor innovation.

Pentax K-01 vs Pentax RZ18 sensor size comparison

Pentax K-01 vs Pentax RZ18 Screen and ViewFinder

Pentax K-01 vs Pentax RZ18 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-01 Portrait photography information
Pentax RZ18 Portrait photography information
74
manual focus
decent MP (16MP)
sensor size is nice (APS-C)
provides face detection autofocus
supports RAW files
36
you can focus manually
decent MP (16MP)
manual mode not possible
cannot use external flash
small sensor (1/2.3")
has no RAW format
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Street Comparison

Pentax K-01 Street photography factors
Pentax RZ18 Street photography factors
66
image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
screen is fixed
more heavy than competition (561 grams)
65
image stabilization (Sensor-shift)
weather proofing
lighter than others (178g)
no articulating screen
small sensor (1/2.3")
has no RAW format
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Sports Comparison

Pentax K-01 Sports photography highlights
Pentax RZ18 Sports photography highlights
61
image stabilization (Sensor based)
decent MP (16 megapixels)
sensor size is nice (APS-C)
good battery pack (540 per charge)
low fps (6.0 frames/s)
no phase detect autofocus
47
excellent zoom range (25-450mm 18.0 x zoom)
image stabilization (Sensor-shift)
decent MP (16 megapixels)
supports tracking focus
weather proofing
slow continuous shooting (1.0 frames/s)
lack of shutter priority mode
small sensor (1/2.3")
has no phase detect autofocus
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Travel Comparison

Pentax K-01 as a Travel photography camera
Pentax RZ18 as a Travel photography camera
65
good battery pack (540 shots)
decent MP (16MP)
built-in flash
more heavy than competition (561 grams)
screen isn't selfie friendly
71
lighter than others (178 grams)
weather proofing
decent MP (16MP)
flash built-in
rather wide (25mm)
great reach (450mm)
lack of Timelapse mode
screen is not selfie friendly
slow max aperture (f3.5)
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Landscape Comparison

Pentax K-01 Landscape photography info
Pentax RZ18 Landscape photography info
80
manual focus
swap lenses (Pentax KAF2 mount)
nice screen size (3 inches)
image stabilization (Sensor based)
decent MP (16 megapixels)
sensor size is nice (APS-C)
supports RAW files
good battery pack (540 per charge)
49
you can focus manually
rather wide (25mm)
nice screen size (3 inches)
image stabilization (Sensor-shift)
decent MP (16 megapixels)
weather proofing
can't change lenses (fixed lens mount)
slow max aperture (f3.5)
manual mode not possible
small sensor (1/2.3")
has no RAW format
lack of Timelapse mode
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Vlogging Comparison

Vlogging with Pentax K-01
Vlogging with Pentax RZ18
34
image stabilization (Sensor based)
provides face detection autofocus
video res high (1920 x 1080 pxls)
has external microphone jack
screen isn't selfie friendly
more heavy than competition (561 grams)
30
rather wide (25mm)
image stabilization (Sensor-shift)
lighter than others (178 grams)
slow max aperture (f3.5)
screen is not selfie friendly
low res video (1280 x 720 resolution)
lack of microphone support
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Pentax K-01 vs Pentax RZ18 Specifications

Detailed spec comparison table for Pentax K-01 and Pentax RZ18
 Pentax K-01Pentax Optio RZ18
General Information
Manufacturer Pentax Pentax
Model type Pentax K-01 Pentax Optio RZ18
Class Entry-Level Mirrorless Small Sensor Superzoom
Revealed 2012-05-30 2011-09-12
Physical type SLR-style mirrorless Compact
Sensor Information
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 1:1, 4:3, 3:2 and 16:9 1:1, 4:3 and 16:9
Highest Possible resolution 4928 x 3264 4608 x 3456
Maximum native ISO 12800 6400
Maximum enhanced ISO 25600 -
Lowest native ISO 100 80
RAW images
Autofocusing
Focus manually
Touch focus
AF continuous
Single AF
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 81 9
Lens
Lens support Pentax KAF2 fixed lens
Lens zoom range - 25-450mm (18.0x)
Largest aperture - f/3.5-5.9
Macro focusing range - 4cm
Available lenses 151 -
Crop factor 1.5 5.9
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3" 3"
Resolution of screen 921 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch operation
Screen tech TFT LCD monitor TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder None None
Features
Min shutter speed 30s 4s
Max shutter speed 1/4000s 1/2000s
Continuous shutter rate 6.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Set WB
Image stabilization
Built-in flash
Flash distance 12.00 m (at ISO 100) 2.80 m
Flash settings Auto, On, Off, Red-eye, Slow-speed Sync, Trailing Curtain Sync Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
WB bracketing
Max flash synchronize 1/180s -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (30, 25, 24 fps),1280 x 720 (60, 50, 30, 25, 24 fps), 640 x 480 (30, 25, 24 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 MPEG-4, H.264 Motion JPEG
Microphone support
Headphone support
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 561 grams (1.24 lb) 178 grams (0.39 lb)
Dimensions 122 x 79 x 58mm (4.8" x 3.1" x 2.3") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO Overall rating 79 not tested
DXO Color Depth rating 23.7 not tested
DXO Dynamic range rating 12.9 not tested
DXO Low light rating 1135 not tested
Other
Battery life 540 shots -
Type of battery Battery Pack -
Battery ID D-LI90 D-LI92
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/SDHC/SDXC, Internal
Card slots One One
Cost at release $899 $210