Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Panasonic G9 and Pentax RZ18 side-by-side from the front, back and top in their relative dimensions. Panasonic G9 has external dimensions of 137 x 97 x 92 mm (5.39 x 3.82 x 3.62″) and weighs 658 g (1.45 lb / 23.21 oz) (including batteries). Pentax RZ18 has external dimensions of 97 x 61 x 33 mm (3.82 x 2.4 x 1.3″) and weighs 178 g (0.39 lb / 6.28 oz) (including batteries).
Below you can see the front view size comparison of Panasonic G9 and Pentax RZ18. Pentax RZ18 is clearly the smaller of the two cameras. Its body is 40mm narrower, 36mm shorter and 59mm thinner than Panasonic G9. As you can tell, actually this is not a fair size comparison since Pentax RZ18 has a built-in lens but Panasonic G9 doesn't. Once you put a lens on G9, its thickness will increase significantly.
![Panasonic G9 vs Pentax RZ18 Camera Size Comparison - Front View]()
Comparison image of Panasonic G9 and Pentax RZ18 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Panasonic G9 and Pentax RZ18.
![Panasonic G9 vs Pentax RZ18 Camera Size Comparison - Back View]()
Comparison image of Panasonic G9 and Pentax RZ18 Size and Weight - Back View
Now lets look at the top view comparison of Panasonic G9 and Pentax RZ18.
![Panasonic G9 vs Pentax RZ18 Camera Size Comparison - Top View]()
Top View Comparison image of Panasonic G9 and Pentax RZ18 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Pentax RZ18 is significantly lighter (480g ) than the Panasonic G9 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on G9, the total kit will weigh much higher.
Weather Sealing
Both G9 and RZ18 have weather sealings in their body, making them resistant to water and dust.
LCD Screen Size and Features
Panasonic G9 and Pentax RZ18's LCD screens has the same diagonal size of 3".
On the other hand, Panasonic G9 sports a
Fully Articulated screen which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. Pentax RZ18's LCD screen is a fixed type which provides almost no flexibility in shooting positions compared to G9.
Panasonic G9 has a 20.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Pentax RZ18 has a 16.0MP 1/2.3" (6.08 x 4.56 mm ) sized CCD sensor .
Another difference between these two cameras is that Panasonic G9's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moire occurring in certain scenes.
Below you can see the G9 and RZ18 sensor size comparison.
![Panasonic G9 vs Pentax RZ18 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Panasonic G9 and Pentax RZ18 Cameras
As seen above, Panasonic G9 has a 8.1x Larger sensor area than Pentax RZ18. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
In this section, we rank and compare Panasonic G9 and Pentax RZ18 for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.
Panasonic G9 for Portrait Photography
Pentax RZ18 for Portrait Photography
Large Four Thirds (17.3 x 13 mm) sensor
Very High Resolution Sensor: 20.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details
Image Stabilization
Average Resolution Sensor: 16.0MP
Small 1/2.33" (6.08 x 4.56 mm) sensor
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Exposure Mode
Not so good Ergonomics&Handling
Read the details
Panasonic G9 for Street Photography
Pentax RZ18 for Street Photography
Large Four Thirds (17.3 x 13 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Fully Articulated LCD Screen
Medium sized Body
Read the details
Image Stabilization
Small Body
Live-view
25 mm - Good Wide Angle Coverage
Small 1/2.33" (6.08 x 4.56 mm) sensor
No RAW shooting capability
No Built-in Viewfinder
Read the details
Panasonic G9 for Sports Photography
Pentax RZ18 for Sports Photography
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Fast Continuous Shooting: 20.0fps
Environmental Sealings
Fast Max shutter speed: 1/8000s
225 Focus Points
Wireless Connection
Read the details
Image Stabilization
Environmental Sealings
450 mm Tele Lens
Average Max shutter speed: 1/2000s
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Exposure Mode
Not so good Ergonomics&Handling
Slow Continuous Shooting: 1.0fps
9 Focus Points
Slow Lens at Tele: f5.90
Read the details
Panasonic G9 for Daily Photography
Pentax RZ18 for Daily Photography
Large Four Thirds (17.3 x 13 mm) sensor
Environmental Sealings
Medium size Body
658g
Body Thickness 92mm
Read the details
Compact Body
178g
Environmental Sealings
18.0X Optical Zoom
Small 1/2.33" (6.08 x 4.56 mm) sensor
No RAW shooting capability
Read the details
Panasonic G9 for Landscape Photography
Pentax RZ18 for Landscape Photography
Large Four Thirds (17.3 x 13 mm) sensor
Very High Resolution Sensor: 20.0MP
Environmental Sealings
Live-view
Read the details
Environmental Sealings
25 mm - Good Wide Angle Coverage
Average Resolution Sensor: 16.0MP
Small 1/2.33" (6.08 x 4.56 mm) sensor
No RAW shooting capability
No Manual Exposure Mode
Read the details
You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Panasonic G9 and Pentax RZ18, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.
Here is a summary of how Panasonic G9 and Pentax RZ18 scores compare:
Panasonic G9
Ranked
#36 out of 86 in SLR-style mirrorless cameras
Ranked
#60 out of 1220 in all Cameras
Pentax RZ18
Ranked
#278 out of 475 in Compact cameras
Ranked
#896 out of 1220 in all Cameras
Panasonic G9 is the overall winner of this comparison. It has a higher Overall Score and beats Pentax RZ18 in all criteria except one: Portability. Pentax RZ18 is significantly smaller than Panasonic G9. If small size and light body is a big priority for you, choose Pentax RZ18. Otherwise, Panasonic G9 is the better camera overall.
| General |
Panasonic Lumix DC-G9 |
Pentax Optio RZ18 |
| Brand |
Panasonic |
Pentax |
| Announced |
2017-11-08 |
2011-09-12 |
| Body Type |
SLR-style mirrorless |
Compact |
Sensor |
|
|
| Type |
CMOS |
CCD |
| Size |
Four Thirds |
1/2.3" |
| Dimensions |
17.3 x 13 mm |
6.08 x 4.56 mm |
| Area |
224.90mm2 |
27.72mm2 |
| Megapixels |
20 megapixels |
16 megapixels |
| Max Resolution |
5184 x 3888 |
4608 x 3456 |
| Max Native Light sensitivity |
25,600 ISO |
6,400 ISO |
| Min Native Light sensitivity |
200 ISO |
80 ISO |
| Min Boosted Light Sensitivity |
100 ISO |
- |
| RAW Support |
|
|
Autofocus |
|
|
| AF Touch |
|
|
| AF Continuous |
|
|
| AF Single |
|
|
| AF Tracking |
|
|
| AF Selective |
|
|
| AF Center |
|
|
| AF Multi Area |
|
|
| AF Live View |
|
|
| AF Face Detection |
|
|
| AF Contrast Detection |
|
|
| AF Phase Detection |
|
|
| Number of Focus Points |
225 |
9 |
Lens |
|
|
| Manual Focus |
|
|
| Lens Mount |
Micro Four Thirds |
fixed lens |
| Lens Focal Range |
no lens |
25-450 mm (18×) |
| Max Aperture |
no lens |
F3.5-5.9 |
| Macro Focus Range |
no lens |
4cm |
Screen |
|
|
| Type |
Fully Articulated |
Fixed type |
| Size |
3" |
3" |
| Resolution |
1,040k dots |
460k dots |
| Touch Screen |
|
|
Viewfinder |
|
|
| Viewfinder |
Electronic |
None |
| Viewfinder Resolution |
3,680k dots |
no electronic viewfinder |
| Viewfinder Coverage |
100% |
n/a |
| Viewfinder Magnification |
0.83x |
n/a |
Photography Features |
|
|
| Max Mechanical Shutter |
1/8000s |
1/2000s |
| Max Electronic Shutter |
1/32000s |
n/a |
| Shutter Priority |
|
|
| Aperture Priority |
|
|
| Manual Exposure Mode |
|
|
| Custom White Balance |
|
|
| Image Stabilization |
Sensor-shift |
Sensor-shift |
| Built-in Flash |
|
|
| Flash Range |
no built-in flash |
2.80 m |
| External Flash |
|
|
| Continuous Shooting |
20.0 fps |
1.0 fps |
| Multi-Segment |
|
|
| Average |
|
|
| Spot |
|
|
| Partial |
|
|
| AF-Area |
|
|
| Center Weighted |
|
|
| AE Bracketing |
|
|
| WB Bracketing |
|
|
Video Features |
|
|
| Max Video Resolution |
3840 x 2160 |
1280 x 720 |
| Video Formats |
MPEG-4, AVCHD, H.264 |
Motion JPEG |
| Microphone Port |
|
|
| Headphone Port |
|
|
Connectivity |
|
|
| Wireless Connectivity |
Built-In |
Eye-Fi Connected |
| HDMI |
|
|
Physical |
|
|
| Environmental Sealing |
|
|
| Weight |
658g |
178g |
| Dimensions |
137 x 97 x 92mm |
97 x 61 x 33mm |
| Battery Life |
400 shots |
n/a |
Other Features |
|
|
| Timelapse Recording |
|
|
| GPS |
None |
None |
DxO Sensor Scores |
|
|
|
Report a correction |
Report a correction |