Clicky

Pentax K-5 vs Pentax RZ18

Portability
60
Imaging
56
Features
82
Overall
66
Pentax K-5 front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Pentax K-5 vs Pentax RZ18 Key Specs

Pentax K-5
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 80 - 12800 (Bump to 51200)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 740g - 131 x 97 x 73mm
  • Released December 2010
  • Succeeded the Pentax K-7
  • Refreshed by Pentax K-5 IIs
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
Pentax 17 Pre-Orders Outperform Expectations by a Landslide

Pentax K-5 vs Pentax RZ18 Overview

On this page, we are looking at the Pentax K-5 versus Pentax RZ18, one is a Advanced DSLR and the other is a Small Sensor Superzoom and both of them are sold by Pentax. The resolution of the K-5 (16MP) and the RZ18 (16MP) is very well matched but the K-5 (APS-C) and RZ18 (1/2.3") posses totally different sensor size.

President Biden pushes bill mandating TikTok sale or ban

The K-5 was launched 8 months prior to the RZ18 which means that they are of a similar generation. Both the cameras have different body design with the Pentax K-5 being a Mid-size SLR camera and the Pentax RZ18 being a Compact camera.

Before delving straight to a in depth comparison, here is a brief overview of how the K-5 matches up versus the RZ18 in regards to portability, imaging, features and an overall score.

Photography Glossary
	
	

Reasons to pick Pentax K-5 over the Pentax RZ18

 K-5 RZ18 
Display resolution921k460kCrisper display (+461k dot)

Reasons to pick Pentax RZ18 over the Pentax K-5

 RZ18 K-5 
AnnouncedSeptember 2011December 2010More modern by 8 months

Common features in the Pentax K-5 and Pentax RZ18

 K-5 RZ18 
Focus manually Dial accurate focusing
Display typeFixed Fixed Fixed display
Display dimensions3"3"Equal display size
Selfie screen Lacking selfie screen
Touch friendly display Neither has Touch friendly display

Pentax K-5 vs Pentax RZ18 Physical Comparison

For anyone who is planning to carry around your camera regularly, you should take into account its weight and size. The Pentax K-5 has external dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") and a weight of 740 grams (1.63 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).

Contrast the Pentax K-5 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 are utilising at that time. The following is a front view sizing comparison of the K-5 compared to the RZ18.

Pentax K-5 vs Pentax RZ18 size comparison

Factoring in size and weight, the portability score of the K-5 and RZ18 is 60 and 92 respectively.

Pentax K-5 vs Pentax RZ18 top view buttons comparison

Pentax K-5 vs Pentax RZ18 Sensor Comparison

In many cases, it's difficult to visualise the gap between sensor sizes only by looking at a spec sheet. The pic below may give you a stronger sense of the sensor sizes in the K-5 and RZ18.

Clearly, the two cameras have the same resolution but not the same sensor sizes. The K-5 features the larger sensor which is going to make achieving shallow DOF easier. The more aged K-5 is going to be behind with regard to sensor technology.

Pentax K-5 vs Pentax RZ18 sensor size comparison

Pentax K-5 vs Pentax RZ18 Screen and ViewFinder

Pentax K-5 vs Pentax RZ18 Screen and Viewfinder comparison
Photobucket discusses licensing 13 billion images with AI firms

Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-5
Portrait photography with Pentax RZ18
73
has manual focus
good MP (16 megapixels)
sensor size is decent (APS-C)
provides face detect focusing
saves RAW formats
36
has manual focus
sensor resolution is decent (16 megapixels)
no manual control
external flash not possible
sensor is very small (1/2.3")
no RAW files
Apple Innovates by Creating Next-Level Optical Stabilization for iPhone

Street Comparison

Street photography with Pentax K-5
Street photography with Pentax RZ18
66
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW formats
environment sealing
no moving screen
65
image stabilization (Sensor-shift)
environment proof
lighter than competition in class (178 grams)
screen is fixed
sensor is very small (1/2.3")
no RAW files
Samsung Releases Faster Versions of EVO MicroSD Cards

Sports Comparison

Pentax K-5 as a Sports photography camera
Pentax RZ18 as a Sports photography camera
78
max shutter speed is good (1/8,000 seconds)
built in image stabilization (Sensor based)
good MP (16 megapixels)
sensor size is decent (APS-C)
provides tracking focus
environment sealing
supports phase detect AF
47
excellent zoom range (25-450mm 18.0 x zoom)
image stabilization (Sensor-shift)
sensor resolution is decent (16MP)
has tracking focus
environment proof
very slow continuous shooting (1.0 fps)
lack of shutter priority mode
sensor is very small (1/2.3")
no phase detect autofocus
Snapchat Adds Watermarks to AI-Created Images

Travel Comparison

Travel photography with Pentax K-5
Travel photography with Pentax RZ18
65
environment sealing
good MP (16MP)
built-in flash
doesn't have selfie friendly display
71
lighter than competition in class (178g)
environment proof
sensor resolution is decent (16MP)
has built in flash
reasonably wide (25mm)
great zoom (450mm)
lack of Time Lapse recording
does not have a selfie friendly screen
slow max aperture (f3.5)
Meta to Introduce 'AI-Generated' Labels for Media starting next month

Landscape Comparison

Landscape photography with Pentax K-5
Landscape photography with Pentax RZ18
78
has manual focus
switch lenses (Pentax KAF2 mount)
screen size is good (3")
built in image stabilization (Sensor based)
good MP (16 megapixels)
sensor size is decent (APS-C)
saves RAW formats
environment sealing
49
has manual focus
reasonably wide (25mm)
screen size is decent (3")
image stabilization (Sensor-shift)
sensor resolution is decent (16MP)
environment proof
fixed lens (fixed lens mount)
slow max aperture (f3.5)
no manual control
sensor is very small (1/2.3")
no RAW files
lack of Time Lapse recording
Sora from OpenAI releases its first ever music video

Vlogging Comparison

Pentax K-5 Vlogging factors
Pentax RZ18 Vlogging factors
33
built in image stabilization (Sensor based)
provides face detect focusing
high res video (1920 x 1080 pixels)
comes with microphone jack
doesn't have selfie friendly display
30
reasonably wide (25mm)
image stabilization (Sensor-shift)
lighter than competition in class (178 grams)
slow max aperture (f3.5)
does not have a selfie friendly screen
low res video (1280 x 720 pxls)
lack of mic support
Japan-exclusive Leica Leitz Phone 3 features big sensor and new modes

Pentax K-5 vs Pentax RZ18 Specifications

Detailed spec comparison table for Pentax K-5 and Pentax RZ18
 Pentax K-5Pentax Optio RZ18
General Information
Brand Name Pentax Pentax
Model Pentax K-5 Pentax Optio RZ18
Type Advanced DSLR Small Sensor Superzoom
Released 2010-12-18 2011-09-12
Physical type Mid-size SLR Compact
Sensor Information
Processor Chip Prime II -
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor dimensions 23.7 x 15.7mm 6.08 x 4.56mm
Sensor area 372.1mm² 27.7mm²
Sensor resolution 16MP 16MP
Anti aliasing 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 80 80
RAW images
Autofocusing
Manual focus
Touch to focus
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 11 9
Cross focus points 9 -
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 25-450mm (18.0x)
Highest aperture - f/3.5-5.9
Macro focus range - 4cm
Total lenses 151 -
Focal length multiplier 1.5 5.9
Screen
Screen type Fixed Type Fixed Type
Screen size 3 inch 3 inch
Resolution of screen 921 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch capability
Screen technology TFT LCD monitor TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder type Optical (pentaprism) None
Viewfinder coverage 100% -
Viewfinder magnification 0.61x -
Features
Minimum shutter speed 30s 4s
Fastest shutter speed 1/8000s 1/2000s
Continuous shutter rate 7.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Change white balance
Image stabilization
Integrated flash
Flash range 13.00 m (at ISO 100) 2.80 m
Flash options Auto, On, Off, Red-eye, Slow sync, High speed, Rear curtain and Wireless Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
White balance bracketing
Fastest flash synchronize 1/180s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 424 (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 data format Motion JPEG Motion JPEG
Mic 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 Optional None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 740g (1.63 lbs) 178g (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 score 82 not tested
DXO Color Depth score 23.7 not tested
DXO Dynamic range score 14.1 not tested
DXO Low light score 1162 not tested
Other
Battery life 980 images -
Battery style Battery Pack -
Battery model D-LI90 D-LI92
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC SD/SDHC/SDXC, Internal
Card slots Single Single
Launch price $800 $210