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Pentax K10D vs Pentax RZ18

Portability
59
Imaging
48
Features
43
Overall
46
Pentax K10D front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Pentax K10D vs Pentax RZ18 Key Specs

Pentax K10D
(Full Review)
  • 10MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 100 - 1600
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 793g - 142 x 101 x 70mm
  • Announced December 2006
  • Successor is Pentax K20D
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
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Pentax K10D vs Pentax RZ18 Overview

Here is a thorough assessment of the Pentax K10D vs Pentax RZ18, former being a Advanced DSLR while the other is a Small Sensor Superzoom and both are designed by Pentax. There exists a considerable gap among the image resolutions of the K10D (10MP) and RZ18 (16MP) and the K10D (APS-C) and RZ18 (1/2.3") posses totally different sensor size.

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The K10D was launched 5 years earlier than the RZ18 and that is a fairly large difference as far as camera technology is concerned. The two cameras feature different body design with the Pentax K10D being a Mid-size SLR camera and the Pentax RZ18 being a Compact camera.

Before we go into a full comparison, here is a concise summary of how the K10D scores against the RZ18 when it comes to portability, imaging, features and an overall rating.

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Reasons to pick Pentax K10D over the Pentax RZ18

 K10D RZ18 

Reasons to pick Pentax RZ18 over the Pentax K10D

 RZ18 K10D 
RevealedSeptember 2011December 2006Fresher by 57 months
Display size3"2.5"Larger display (+0.5")
Display resolution460k210kClearer display (+250k dot)

Common features in the Pentax K10D and Pentax RZ18

 K10D RZ18 
Manual focus More exact focusing
Display typeFixed Fixed Fixed display
Selfie screen Neither contains selfie screen
Touch friendly display No Touch friendly display

Pentax K10D vs Pentax RZ18 Physical Comparison

If you're going to carry your camera, you should factor its weight and volume. The Pentax K10D has got outside dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") along with a weight of 793 grams (1.75 lbs) while the Pentax RZ18 has sizing of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") with a weight of 178 grams (0.39 lbs).

Take a look at the Pentax K10D vs Pentax RZ18 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change depending on the lens you are utilising at that moment. Following is a front view over all size comparison of the K10D versus the RZ18.

Pentax K10D vs Pentax RZ18 size comparison

Using dimensions and weight, the portability grade of the K10D and RZ18 is 59 and 92 respectively.

Pentax K10D vs Pentax RZ18 top view buttons comparison

Pentax K10D vs Pentax RZ18 Sensor Comparison

Sometimes, it is very hard to visualise the contrast in sensor sizing merely by looking through specs. The photograph below may provide you a much better sense of the sensor dimensions in the K10D and RZ18.

As you can plainly see, both of these cameras come with different megapixel count and different sensor sizing. The K10D because of its larger sensor will make shooting shallower DOF easier and the Pentax RZ18 will provide you with extra detail utilizing its extra 6MP. Greater resolution will allow you to crop images a good deal more aggressively. The older K10D will be behind with regard to sensor technology.

Pentax K10D vs Pentax RZ18 sensor size comparison

Pentax K10D vs Pentax RZ18 Screen and ViewFinder

Pentax K10D vs Pentax RZ18 Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K10D
Portrait photography with Pentax RZ18
52
has manual focus
sensor size is nice (APS-C)
supports RAW files
doesn't have liveview
MP count low (10MP)
36
manual focus
decent MP (16 megapixels)
no manual mode
can't use external flash
tiny sensor (1/2.3")
no RAW format
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Street Comparison

Pentax K10D Street photography info
Pentax RZ18 Street photography info
64
image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
environment proof
no articulating screen
65
built in image stabilization (Sensor-shift)
environment sealing
lighter than average (178 grams)
screen does not articulate
tiny sensor (1/2.3")
no RAW format
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Sports Comparison

Pentax K10D as a Sports photography camera
Pentax RZ18 as a Sports photography camera
52
image stabilization (Sensor based)
sensor size is nice (APS-C)
environment proof
has phase detect AF
doesn't have liveview
low fps (3.0 frames per second)
MP count low (10MP)
47
amazing zoom range (25-450mm 18.0 x zoom)
built in image stabilization (Sensor-shift)
decent MP (16MP)
comes with tracking focus
environment sealing
low fps (1.0 frames/s)
no shutter priority mode
tiny sensor (1/2.3")
no phase detect auto focus
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Travel Comparison

Pentax K10D Travel photography information
Pentax RZ18 Travel photography information
49
environment proof
built-in flash
missing Time Lapse function
MP count low (10 megapixels)
does not offer selfie friendly screen
71
lighter than average (178g)
environment sealing
decent MP (16 megapixels)
built-in flash
reasonably wide (25mm)
long reach (450mm)
does not have Timelapse function
doesn't offer selfie friendly screen
slow maximum aperture (f3.5)
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Landscape Comparison

Landscape photography with Pentax K10D
Landscape photography with Pentax RZ18
55
has manual focus
change lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
environment proof
tiny screen (2.5 inch)
doesn't have liveview
MP count low (10 megapixels)
missing Time Lapse function
49
manual focus
reasonably wide (25mm)
screen is a decent size (3")
built in image stabilization (Sensor-shift)
decent MP (16MP)
environment sealing
fixed lens (fixed lens mount)
slow maximum aperture (f3.5)
no manual mode
tiny sensor (1/2.3")
no RAW format
does not have Timelapse function
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Vlogging Comparison

Vlogging with Pentax K10D
Vlogging with Pentax RZ18
9
no video recording
30
reasonably wide (25mm)
built in image stabilization (Sensor-shift)
lighter than average (178g)
slow maximum aperture (f3.5)
doesn't offer selfie friendly screen
video res low (1280 x 720 resolution)
does not have microphone socket
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Pentax K10D vs Pentax RZ18 Specifications

Detailed spec comparison table for Pentax K10D and Pentax RZ18
 Pentax K10DPentax Optio RZ18
General Information
Brand Pentax Pentax
Model type Pentax K10D Pentax Optio RZ18
Category Advanced DSLR Small Sensor Superzoom
Announced 2006-12-15 2011-09-12
Physical type Mid-size SLR Compact
Sensor Information
Sensor type CCD CCD
Sensor size APS-C 1/2.3"
Sensor measurements 23.5 x 15.7mm 6.08 x 4.56mm
Sensor area 369.0mm² 27.7mm²
Sensor resolution 10 megapixels 16 megapixels
Anti alias filter
Aspect ratio 3:2 1:1, 4:3 and 16:9
Maximum resolution 3872 x 2592 4608 x 3456
Maximum native ISO 1600 6400
Min native ISO 100 80
RAW files
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 9
Lens
Lens mount type Pentax KAF2 fixed lens
Lens zoom range - 25-450mm (18.0x)
Maximum aperture - f/3.5-5.9
Macro focusing range - 4cm
Total lenses 151 -
Focal length multiplier 1.5 5.9
Screen
Screen type Fixed Type Fixed Type
Screen size 2.5 inch 3 inch
Screen resolution 210 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch friendly
Screen tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 95% -
Viewfinder magnification 0.64x -
Features
Slowest shutter speed 30 seconds 4 seconds
Maximum shutter speed 1/4000 seconds 1/2000 seconds
Continuous shooting rate 3.0fps 1.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes -
Change white balance
Image stabilization
Integrated flash
Flash distance - 2.80 m
Flash modes Auto, On, Off, Red-eye, Auto Red Eye Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
White balance bracketing
Maximum flash synchronize 1/180 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions - 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Maximum video resolution None 1280x720
Video file format - Motion JPEG
Microphone port
Headphone port
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
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 793 gr (1.75 lbs) 178 gr (0.39 lbs)
Physical dimensions 142 x 101 x 70mm (5.6" x 4.0" x 2.8") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO All around rating 66 not tested
DXO Color Depth rating 22.7 not tested
DXO Dynamic range rating 11.6 not tested
DXO Low light rating 522 not tested
Other
Battery ID - D-LI92
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/MMC/SDHC card SD/SDHC/SDXC, Internal
Card slots Single Single
Launch pricing $700 $210