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Pentax RZ18 vs Ricoh PX

Portability
92
Imaging
39
Features
37
Overall
38
Pentax Optio RZ18 front
 
Ricoh PX front
Portability
95
Imaging
39
Features
36
Overall
37

Pentax RZ18 vs Ricoh PX Key Specs

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
  • Revealed September 2011
Ricoh PX
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.9-5.4) lens
  • 156g - 100 x 55 x 21mm
  • Launched August 2011
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Pentax RZ18 vs Ricoh PX Overview

Its time to look more closely at the Pentax RZ18 and Ricoh PX, one is a Small Sensor Superzoom and the latter is a Small Sensor Compact by manufacturers Pentax and Ricoh. The resolution of the RZ18 (16MP) and the PX (16MP) is pretty well matched and both cameras offer the same sensor sizes (1/2.3").

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The RZ18 was launched within a month of the PX so they are of a similar generation. The two cameras have the same body design (Compact).

Before getting right into a detailed comparison, here is a quick synopsis of how the RZ18 matches up versus the PX when it comes to portability, imaging, features and an overall score.

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Reasons to pick Pentax RZ18 over the Ricoh PX

 RZ18 PX 
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution460k230kSharper screen (+230k dot)

Reasons to pick Ricoh PX over the Pentax RZ18

 PX RZ18 

Common features in the Pentax RZ18 and Ricoh PX

 RZ18 PX 
LaunchedSeptember 2011August 2011Similar generation
Focus manually Very exact focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Missing selfie screen
Touch screen Neither has Touch screen

Pentax RZ18 vs Ricoh PX Physical Comparison

For those who are going to carry around your camera frequently, you'll have to think about its weight and size. The Pentax RZ18 has exterior dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") having a weight of 178 grams (0.39 lbs) whilst the Ricoh PX has specifications of 100mm x 55mm x 21mm (3.9" x 2.2" x 0.8") and a weight of 156 grams (0.34 lbs).

Compare the Pentax RZ18 and Ricoh PX in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will change based on the lens you choose at that moment. The following is a front view dimension comparison of the RZ18 against the PX.

Pentax RZ18 vs Ricoh PX size comparison

Using dimensions and weight, the portability rating of the RZ18 and PX is 92 and 95 respectively.

Pentax RZ18 vs Ricoh PX top view buttons comparison

Pentax RZ18 vs Ricoh PX Sensor Comparison

Sometimes, it is difficult to picture the gap between sensor sizes simply by looking at specifications. The pic here may give you a greater sense of the sensor sizes in the RZ18 and PX.

Plainly, the two cameras provide the same sensor dimensions and the same resolution so you should expect similar quality of files though you have to factor the production date of the products into consideration.

Pentax RZ18 vs Ricoh PX sensor size comparison

Pentax RZ18 vs Ricoh PX Screen and ViewFinder

Pentax RZ18 vs Ricoh PX Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax RZ18
Portrait photography with Ricoh PX
36
manual focus
good MP (16MP)
lack of manual exposure
no external flash support
very small sensor size (1/2.3")
does not have RAW files
43
has manual focus
decent sensor resolution (16MP)
comes with face detect focusing
no external flash support
sensor is tiny (1/2.3")
lacks RAW format
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Street Comparison

Street photography with Pentax RZ18
Street photography with Ricoh PX
65
built in image stabilization (Sensor-shift)
environment sealing
lighter than competitors in class (178 grams)
no moving screen
very small sensor size (1/2.3")
does not have RAW files
63
built in image stabilization (Sensor-shift)
weather proofing
no moving screen
sensor is tiny (1/2.3")
lacks RAW format
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Sports Comparison

Sports photography with Pentax RZ18
Sports photography with Ricoh PX
47
incredible zoom range (25-450mm 18.0 x zoom)
built in image stabilization (Sensor-shift)
good MP (16MP)
comes with tracking focus
environment sealing
very slow continuous shooting (1.0 fps)
no shutter priority
very small sensor size (1/2.3")
does not have phase detect autofocus
44
built in image stabilization (Sensor-shift)
decent sensor resolution (16 megapixels)
comes with tracking focus
weather proofing
very slow continuous shooting (1.0 fps)
lack of shutter priority mode
sensor is tiny (1/2.3")
lacks phase detect AF
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Travel Comparison

Pentax RZ18 Travel photography information
Ricoh PX Travel photography information
71
lighter than competitors in class (178 grams)
environment sealing
good MP (16 megapixels)
has built in flash
fairly wide (25mm)
great reach (450mm)
no Timelapse recording
does not feature selfie friendly display
somewhat slow max aperture (f3.5)
68
weather proofing
decent sensor resolution (16 megapixels)
has built in flash
reasonably wide (28mm)
lack of Time Lapse mode
screen is not selfie friendly
somewhat slow max aperture (f3.9)
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Landscape Comparison

Landscape photography with Pentax RZ18
Landscape photography with Ricoh PX
49
manual focus
fairly wide (25mm)
nice screen size (3 inch)
built in image stabilization (Sensor-shift)
good MP (16 megapixels)
environment sealing
lens is fixed (fixed lens mount)
somewhat slow max aperture (f3.5)
lack of manual exposure
very small sensor size (1/2.3")
does not have RAW files
no Timelapse recording
47
has manual focus
reasonably wide (28mm)
built in image stabilization (Sensor-shift)
decent sensor resolution (16 megapixels)
weather proofing
fixed lens (fixed lens mount)
somewhat slow max aperture (f3.9)
tiny screen (2.7 inches)
sensor is tiny (1/2.3")
lacks RAW format
lack of Time Lapse mode
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Vlogging Comparison

Vlogging with Pentax RZ18
Vlogging with Ricoh PX
30
fairly wide (25mm)
built in image stabilization (Sensor-shift)
lighter than competitors in class (178g)
somewhat slow max aperture (f3.5)
does not feature selfie friendly display
low res video (1280 x 720 pixels)
no microphone jack
31
reasonably wide (28mm)
built in image stabilization (Sensor-shift)
comes with face detect focusing
somewhat slow max aperture (f3.9)
screen is not selfie friendly
low res video (1280 x 720 pxls)
lack of mic socket
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Pentax RZ18 vs Ricoh PX Specifications

Detailed spec comparison table for Pentax RZ18 and Ricoh PX
 Pentax Optio RZ18Ricoh PX
General Information
Brand Pentax Ricoh
Model type Pentax Optio RZ18 Ricoh PX
Category Small Sensor Superzoom Small Sensor Compact
Revealed 2011-09-12 2011-08-16
Physical type Compact Compact
Sensor Information
Processor - Smooth Imaging Engine IV
Sensor type CCD CCD
Sensor size 1/2.3" 1/2.3"
Sensor dimensions 6.08 x 4.56mm 6.17 x 4.55mm
Sensor surface area 27.7mm² 28.1mm²
Sensor resolution 16MP 16MP
Anti alias filter
Aspect ratio 1:1, 4:3 and 16:9 1:1, 4:3 and 3:2
Highest resolution 4608 x 3456 4608 x 3072
Highest native ISO 6400 3200
Lowest native ISO 80 100
RAW photos
Autofocusing
Focus manually
Touch focus
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 9 -
Lens
Lens support fixed lens fixed lens
Lens zoom range 25-450mm (18.0x) 28-140mm (5.0x)
Max aperture f/3.5-5.9 f/3.9-5.4
Macro focusing distance 4cm 3cm
Crop factor 5.9 5.8
Screen
Type of screen Fixed Type Fixed Type
Screen size 3 inch 2.7 inch
Resolution of screen 460k dots 230k dots
Selfie friendly
Liveview
Touch operation
Screen technology TFT color LCD with Anti-reflective coating -
Viewfinder Information
Viewfinder None None
Features
Slowest shutter speed 4 secs 8 secs
Maximum shutter speed 1/2000 secs 1/2000 secs
Continuous shooting rate 1.0 frames/s 1.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 2.80 m 3.50 m
Flash modes Auto, On, Off, Red-eye, Soft Auto, On, Off, Red-Eye, Slow Sync
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) 1280 x 720 (30 fps), 640 x 480 (30fps)
Highest video resolution 1280x720 1280x720
Video data format Motion JPEG Motion JPEG
Mic port
Headphone port
Connectivity
Wireless Eye-Fi Connected None
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 178 gr (0.39 pounds) 156 gr (0.34 pounds)
Physical dimensions 97 x 61 x 33mm (3.8" x 2.4" x 1.3") 100 x 55 x 21mm (3.9" x 2.2" x 0.8")
DXO scores
DXO All around rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery ID D-LI92 DB-100
Self timer Yes (2 or 10 sec) Yes (2, 10 or Custom)
Time lapse feature
Type of storage SD/SDHC/SDXC, Internal SD/SDHC card, Internal
Card slots One One
Cost at launch $210 $329