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Panasonic GX850 vs Pentax RZ18

Portability
90
Imaging
55
Features
70
Overall
61
Panasonic Lumix DMC-GX850 front
 
Pentax Optio RZ18 front
Portability
92
Imaging
39
Features
37
Overall
38

Panasonic GX850 vs Pentax RZ18 Key Specs

Panasonic GX850
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 200 - 25600
  • No Anti-Alias Filter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 269g - 107 x 65 x 33mm
  • Announced January 2017
  • Additionally Known as Lumix DMC-GX800 / Lumix DMC-GF9
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
  • Introduced September 2011
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Panasonic GX850 vs Pentax RZ18 Overview

Below, we are analyzing the Panasonic GX850 vs Pentax RZ18, former being a Entry-Level Mirrorless while the other is a Small Sensor Superzoom by competitors Panasonic and Pentax. The sensor resolution of the GX850 (16MP) and the RZ18 (16MP) is fairly well matched but the GX850 (Four Thirds) and RZ18 (1/2.3") feature different sensor size.

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The GX850 was launched 5 years later than the RZ18 and that is quite a big difference as far as technology is concerned. Each of these cameras come with different body type with the Panasonic GX850 being a Rangefinder-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before diving through a in-depth comparison, below is a brief introduction of how the GX850 scores against the RZ18 in relation to portability, imaging, features and an overall rating.

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Reasons to pick Panasonic GX850 over the Pentax RZ18

 GX850 RZ18 
IntroducedJanuary 2017September 2011Fresher by 65 months
Display typeTiltingFixed Tilting display
Display resolution1040k460kClearer display (+580k dot)
Selfie screen Easy selfies
Touch friendly display Easily navigate

Reasons to pick Pentax RZ18 over the Panasonic GX850

 RZ18 GX850 

Common features in the Panasonic GX850 and Pentax RZ18

 GX850 RZ18 
Focus manually Dial precise focusing
Display dimension3"3"Identical display size

Panasonic GX850 vs Pentax RZ18 Physical Comparison

In case you're going to carry your camera regularly, you'll need to take into account its weight and measurements. The Panasonic GX850 provides physical dimensions of 107mm x 65mm x 33mm (4.2" x 2.6" x 1.3") and a weight of 269 grams (0.59 lbs) while the Pentax RZ18 has proportions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") accompanied by a weight of 178 grams (0.39 lbs).

Examine the Panasonic GX850 vs Pentax RZ18 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary dependant on the lens you have during that time. Following is the front view sizing comparison of the GX850 against the RZ18.

Panasonic GX850 vs Pentax RZ18 size comparison

Factoring in dimensions and weight, the portability score of the GX850 and RZ18 is 90 and 92 respectively.

Panasonic GX850 vs Pentax RZ18 top view buttons comparison

Panasonic GX850 vs Pentax RZ18 Sensor Comparison

Quite often, it is very tough to visualize the gap between sensor sizing purely by reading through a spec sheet. The graphic underneath might provide you a more clear sense of the sensor dimensions in the GX850 and RZ18.

Clearly, both cameras have got the exact same megapixel count but different sensor sizing. The GX850 comes with the larger sensor which will make getting shallower depth of field easier. The newer GX850 should have an edge in sensor technology.

Panasonic GX850 vs Pentax RZ18 sensor size comparison

Panasonic GX850 vs Pentax RZ18 Screen and ViewFinder

Panasonic GX850 vs Pentax RZ18 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GX850 Portrait photography features
Pentax RZ18 Portrait photography features
66
focusing manually
good megapixels (16MP)
good sensor size (Four Thirds)
includes face detection focus
delivers RAW formats
external flash not possible
36
you can focus manually
good megapixels (16 megapixels)
manual mode not available
no external flash support
sensor is tiny (1/2.3")
doesn't have RAW format
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Street Comparison

Panasonic GX850 Street photography information
Pentax RZ18 Street photography information
80
screen tilts up and down
good sensor size (Four Thirds)
delivers RAW formats
features touch to focus
great ISO range (25,600)
lack of image stabilization
65
image stabilization (Sensor-shift)
environment proof
lighter than average (178 grams)
screen is fixed
sensor is tiny (1/2.3")
doesn't have RAW format
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Sports Comparison

Panasonic GX850 Sports photography factors
Pentax RZ18 Sports photography factors
52
quiet shutter (1/16,000 seconds)
good megapixels (16 megapixels)
good sensor size (Four Thirds)
includes tracking autofocus
low max shutter speed (1/500 seconds)
lack of image stabilization
terrible battery life (210 shots)
does not have phase detect auto focus
47
long zoom range (25-450mm 18.0 x zoom)
image stabilization (Sensor-shift)
good megapixels (16 megapixels)
includes tracking autofocus
environment proof
max frames per second very slow (1.0 frames per second)
lack of shutter priority mode
sensor is tiny (1/2.3")
doesn't have phase detect autofocus
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Travel Comparison

Travel photography with Panasonic GX850
Travel photography with Pentax RZ18
79
features touch to focus
good megapixels (16 megapixels)
built-in flash
display is selfie friendly
terrible battery life (210 CIPA)
71
lighter than average (178g)
environment proof
good megapixels (16 megapixels)
flash built-in
quite wide (25mm)
very long reach (450mm)
no Timelapse function
display is not selfie friendly
somewhat slow max aperture (f3.5)
Photography Glossary

Landscape Comparison

Panasonic GX850 as a Landscape photography camera
Pentax RZ18 as a Landscape photography camera
71
focusing manually
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inches)
good megapixels (16MP)
good sensor size (Four Thirds)
does not have anti-alias filter
great ISO range (25,600)
delivers RAW formats
lack of image stabilization
terrible battery life (210 CIPA)
49
you can focus manually
quite wide (25mm)
screen size is good (3 inches)
image stabilization (Sensor-shift)
good megapixels (16MP)
environment proof
lens is fixed (fixed lens mount)
somewhat slow max aperture (f3.5)
manual mode not available
sensor is tiny (1/2.3")
doesn't have RAW format
no Timelapse function
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Vlogging Comparison

Panasonic GX850 Vlogging information
Pentax RZ18 Vlogging information
73
display is selfie friendly
has touchscreen
includes face detection focus
video res high (3840 x 2160 resolution)
lack of image stabilization
lack of external microphone support
30
quite wide (25mm)
image stabilization (Sensor-shift)
lighter than average (178 grams)
somewhat slow max aperture (f3.5)
display is not selfie friendly
video res low (1280 x 720 resolution)
no external microphone support
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Panasonic GX850 vs Pentax RZ18 Specifications

Detailed spec comparison table for Panasonic GX850 and Pentax RZ18
 Panasonic Lumix DMC-GX850Pentax Optio RZ18
General Information
Company Panasonic Pentax
Model type Panasonic Lumix DMC-GX850 Pentax Optio RZ18
Otherwise known as Lumix DMC-GX800 / Lumix DMC-GF9 -
Class Entry-Level Mirrorless Small Sensor Superzoom
Announced 2017-01-04 2011-09-12
Physical type Rangefinder-style mirrorless Compact
Sensor Information
Chip Venus Engine -
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.3 x 13mm 6.08 x 4.56mm
Sensor surface area 224.9mm² 27.7mm²
Sensor resolution 16 megapixel 16 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3 and 16:9
Full resolution 4592 x 3448 4608 x 3456
Max native ISO 25600 6400
Lowest native ISO 200 80
RAW data
Lowest boosted ISO 100 -
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 49 9
Lens
Lens mount type Micro Four Thirds fixed lens
Lens zoom range - 25-450mm (18.0x)
Maximum aperture - f/3.5-5.9
Macro focusing range - 4cm
Amount of lenses 107 -
Focal length multiplier 2.1 5.9
Screen
Display type Tilting Fixed Type
Display sizing 3 inch 3 inch
Resolution of display 1,040k dots 460k dots
Selfie friendly
Liveview
Touch functionality
Display tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder None None
Features
Lowest shutter speed 60s 4s
Highest shutter speed 1/500s 1/2000s
Highest quiet shutter speed 1/16000s -
Continuous shooting rate 10.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change WB
Image stabilization
Built-in flash
Flash distance 4.00 m (at ISO 100) 2.80 m
Flash options Auto, auto w/redeye reduction, on, on w/redeye reduction, slow sync, slow sync w/redeye reduction Auto, On, Off, Red-eye, Soft
Hot shoe
AEB
White balance bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 @ 30p / 100 Mbps, MP4, H.264, AAC3840 x 2160 @ 24p / 100 Mbps, MP4, H.264, AAC1920 x 1080 @ 60p / 28 Mbps, MP4, H.264, AAC1920 x 1080 @ 60p / 28 Mbps, AVCHD, MTS, H.264, Dolby Digital1920 x 1080 @ 60i / 17 Mbps, AVCHD, MTS, H.264, Dolby Digital1920 x 1080 @ 30p / 20 Mbps, MP4, H.264 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Max video resolution 3840x2160 1280x720
Video format MPEG-4, AVCHD Motion JPEG
Microphone support
Headphone support
Connectivity
Wireless Built-In 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 269 gr (0.59 pounds) 178 gr (0.39 pounds)
Dimensions 107 x 65 x 33mm (4.2" x 2.6" x 1.3") 97 x 61 x 33mm (3.8" x 2.4" x 1.3")
DXO scores
DXO All around rating 73 not tested
DXO Color Depth rating 23.2 not tested
DXO Dynamic range rating 13.3 not tested
DXO Low light rating 586 not tested
Other
Battery life 210 photos -
Battery style Battery Pack -
Battery ID - D-LI92
Self timer Yes (2, 10 sec, 3 images/10 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage microSD/SDHC/SDXC SD/SDHC/SDXC, Internal
Card slots One One
Price at launch $548 $210