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Pentax Q7 vs Samsung GX-20

Portability
92
Imaging
37
Features
54
Overall
43
Pentax Q7 front
 
Samsung GX-20 front
Portability
58
Imaging
53
Features
52
Overall
52

Pentax Q7 vs Samsung GX-20 Key Specs

Pentax Q7
(Full Review)
  • 12MP - 1/1.7" Sensor
  • 3" Fixed Screen
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Pentax Q Mount
  • 200g - 102 x 58 x 34mm
  • Revealed August 2013
  • Old Model is Pentax Q10
Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Raise to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Announced January 2008
  • Old Model is Samsung GX-10
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Pentax Q7 vs Samsung GX-20 Overview

Its time to look closer at the Pentax Q7 versus Samsung GX-20, one is a Entry-Level Mirrorless and the latter is a Advanced DSLR by companies Pentax and Samsung. The image resolution of the Q7 (12MP) and the GX-20 (15MP) is relatively similar but the Q7 (1/1.7") and GX-20 (APS-C) feature different sensor measurements.

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The Q7 was revealed 5 years after the GX-20 which is quite a significant gap as far as technology is concerned. Both cameras offer different body type with the Pentax Q7 being a Rangefinder-style mirrorless camera and the Samsung GX-20 being a Mid-size SLR camera.

Before getting straight into a detailed comparison, below is a simple summation of how the Q7 matches up versus the GX-20 with respect to portability, imaging, features and an overall score.

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Reasons to pick Pentax Q7 over the Samsung GX-20

 Q7 GX-20 
AnnouncedAugust 2013January 2008More modern by 68 months
Screen sizing3"2.7"Bigger screen (+0.3")
Screen resolution460k230kCrisper screen (+230k dot)

Reasons to pick Samsung GX-20 over the Pentax Q7

 GX-20 Q7 

Common features in the Pentax Q7 and Samsung GX-20

 Q7 GX-20 
Manual focus Dial accurate focus
Screen typeFixed Fixed Fixed screen
Selfie screen Missing selfie screen
Touch screen Neither has Touch screen

Pentax Q7 vs Samsung GX-20 Physical Comparison

For those who are looking to carry around your camera, you are going to need to factor its weight and measurements. The Pentax Q7 has outer dimensions of 102mm x 58mm x 34mm (4.0" x 2.3" x 1.3") with a weight of 200 grams (0.44 lbs) whilst the Samsung GX-20 has proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

Contrast the Pentax Q7 versus Samsung GX-20 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are employing at that time. Following is the front view dimensions comparison of the Q7 and the GX-20.

Pentax Q7 vs Samsung GX-20 size comparison

Taking into consideration dimensions and weight, the portability rating of the Q7 and GX-20 is 92 and 58 respectively.

Pentax Q7 vs Samsung GX-20 top view buttons comparison

Pentax Q7 vs Samsung GX-20 Sensor Comparison

Quite often, it can be difficult to visualize the gap between sensor sizes just by reviewing specifications. The image underneath should give you a stronger sense of the sensor sizes in the Q7 and GX-20.

To sum up, the two cameras offer different megapixel count and different sensor sizes. The Q7 having a tinier sensor is going to make achieving shallow DOF more difficult and the Samsung GX-20 will offer you more detail because of its extra 3 Megapixels. Higher resolution can also let you crop photographs a little more aggressively. The newer Q7 provides a benefit with regard to sensor tech.

Pentax Q7 vs Samsung GX-20 sensor size comparison

Pentax Q7 vs Samsung GX-20 Screen and ViewFinder

Pentax Q7 vs Samsung GX-20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax Q7 Portrait photography information
Samsung GX-20 Portrait photography information
48
has manual focus
above average flash sync (1/2,000 seconds)
comes with face detect focus
exports RAW formats
sensor resolution not great (12MP)
sensor size is tiny (1/1.7")
71
manual focus
MP count decent (15MP)
decent sensor size (APS-C)
saves RAW files
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Street Comparison

Pentax Q7 as a Street photography camera
Samsung GX-20 as a Street photography camera
69
image stabilization (Sensor based)
exports RAW formats
lighter than competition in class (200g)
no articulating screen
sensor size is tiny (1/1.7")
65
built in image stabilization (Sensor based)
decent sensor size (APS-C)
saves RAW files
environment proofing
no articulating screen
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Sports Comparison

Pentax Q7 as a Sports photography camera
Samsung GX-20 as a Sports photography camera
32
image stabilization (Sensor based)
comes with tracking focus
max frames per second low (5.0 frames per second)
sensor resolution not great (12 megapixels)
sensor size is tiny (1/1.7")
bad battery power (250 CIPA)
lack of phase detect auto focus
68
built in image stabilization (Sensor based)
MP count decent (15MP)
decent sensor size (APS-C)
environment proofing
comes with phase detect AF
slow continuous shooting (3.0 frames/s)
Photography Glossary

Travel Comparison

Travel photography with Pentax Q7
Travel photography with Samsung GX-20
60
lighter than competition in class (200 grams)
built-in flash
bad battery power (250 per charge)
sensor resolution not great (12 megapixels)
screen is not selfie friendly
63
environment proofing
MP count decent (15MP)
built-in flash
doesn't offer selfie friendly screen
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Landscape Comparison

Landscape photography with Pentax Q7
Landscape photography with Samsung GX-20
55
has manual focus
change lenses (Pentax Q mount)
screen size is decent (3 inches)
image stabilization (Sensor based)
exports RAW formats
sensor resolution not great (12MP)
sensor size is tiny (1/1.7")
bad battery power (250 shots)
70
manual focus
change lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
MP count decent (15MP)
decent sensor size (APS-C)
saves RAW files
environment proofing
small screen (2.7 inches)
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Vlogging Comparison

Pentax Q7 Vlogging details
Samsung GX-20 Vlogging details
35
image stabilization (Sensor based)
comes with face detect focus
video res high (1920 x 1080 pixels)
lighter than competition in class (200 grams)
screen is not selfie friendly
lack of mic jack
9
no video recording
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Pentax Q7 vs Samsung GX-20 Specifications

Detailed spec comparison table for Pentax Q7 and Samsung GX-20
 Pentax Q7Samsung GX-20
General Information
Brand Pentax Samsung
Model Pentax Q7 Samsung GX-20
Type Entry-Level Mirrorless Advanced DSLR
Revealed 2013-08-08 2008-01-24
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Sensor type BSI-CMOS CMOS
Sensor size 1/1.7" APS-C
Sensor dimensions 7.44 x 5.58mm 23.4 x 15.6mm
Sensor surface area 41.5mm² 365.0mm²
Sensor resolution 12 megapixels 15 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 -
Highest resolution 4000 x 3000 4688 x 3120
Highest native ISO 12800 3200
Highest boosted ISO - 6400
Minimum native ISO 100 100
RAW format
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Tracking autofocus
Selective autofocus
Center weighted autofocus
Autofocus multi area
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points - 11
Cross focus points - -
Lens
Lens mounting type Pentax Q Pentax KAF2
Total lenses 8 151
Focal length multiplier 4.8 1.5
Screen
Screen type Fixed Type Fixed Type
Screen sizing 3 inch 2.7 inch
Resolution of screen 460 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch screen
Screen technology TFT color LCD monitor, wide angle viewing, AR coating -
Viewfinder Information
Viewfinder type Optical (optional) Optical (pentaprism)
Viewfinder coverage - 95%
Viewfinder magnification - 0.64x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/2000 seconds 1/4000 seconds
Continuous shooting rate 5.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash range 4.90 m (ISO100/m) 13.00 m (at ISO 100)
Flash modes P-TTL, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
Auto exposure bracketing
WB bracketing
Maximum flash synchronize 1/2000 seconds 1/180 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions FullHD(1920x1080, 30fps/25fps/24fps), HD(1280x720,16:9,30fps/25fps/24fps), VGA(640x480,4:3,30fps/25fps/24fps) -
Highest video resolution 1920x1080 None
Video file format MPEG-4, H.264 -
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
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 200 grams (0.44 pounds) 800 grams (1.76 pounds)
Dimensions 102 x 58 x 34mm (4.0" x 2.3" x 1.3") 142 x 101 x 72mm (5.6" x 4.0" x 2.8")
DXO scores
DXO All around score not tested 68
DXO Color Depth score not tested 23.1
DXO Dynamic range score not tested 11.2
DXO Low light score not tested 714
Other
Battery life 250 photos -
Style of battery Battery Pack -
Battery model D-LI68 -
Self timer Yes (12 sec, 2 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD, SDHC, SDXC and Eye-Fi Card SD/MMC/SDHC card
Card slots One One
Cost at launch $480 $850