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Pentax K-3 vs Pentax Q-S1

Portability
59
Imaging
65
Features
85
Overall
73
Pentax K-3 front
 
Pentax Q-S1 front
Portability
92
Imaging
38
Features
54
Overall
44

Pentax K-3 vs Pentax Q-S1 Key Specs

Pentax K-3
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Display
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Introduced April 2014
  • Later Model is Pentax K-3 II
Pentax Q-S1
(Full Review)
  • 12MP - 1/1.7" Sensor
  • 3" Fixed Display
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax Q Mount
  • 203g - 105 x 58 x 34mm
  • Introduced August 2014
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Pentax K-3 vs Pentax Q-S1 Overview

The following is a complete review of the Pentax K-3 vs Pentax Q-S1, one is a Advanced DSLR and the other is a Entry-Level Mirrorless and both of them are designed by Pentax. There is a significant difference among the image resolutions of the K-3 (24MP) and Q-S1 (12MP) and the K-3 (APS-C) and Q-S1 (1/1.7") possess different sensor sizes.

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The K-3 was announced 3 months before the Q-S1 and they are of a similar generation. Each of these cameras offer different body type with the Pentax K-3 being a Mid-size SLR camera and the Pentax Q-S1 being a Rangefinder-style mirrorless camera.

Before getting in to a full comparison, below is a simple view of how the K-3 grades against the Q-S1 in terms of portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-3 over the Pentax Q-S1

 K-3 Q-S1 
Display sizing3.2"3"Larger display (+0.2")
Display resolution1037k460kCrisper display (+577k dot)

Reasons to pick Pentax Q-S1 over the Pentax K-3

 Q-S1 K-3 

Common features in the Pentax K-3 and Pentax Q-S1

 K-3 Q-S1 
IntroducedApril 2014August 2014Same generation
Focus manually Very precise focus
Display typeFixed Fixed Fixed display
Selfie screen Neither offers selfie screen
Touch display Neither offers Touch display

Pentax K-3 vs Pentax Q-S1 Physical Comparison

For anyone who is intending to travel with your camera regularly, you will have to factor its weight and proportions. The Pentax K-3 offers external measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") along with a weight of 800 grams (1.76 lbs) and the Pentax Q-S1 has measurements of 105mm x 58mm x 34mm (4.1" x 2.3" x 1.3") accompanied by a weight of 203 grams (0.45 lbs).

See the Pentax K-3 vs Pentax Q-S1 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you have at that time. Below is the front view scale comparison of the K-3 vs the Q-S1.

Pentax K-3 vs Pentax Q-S1 size comparison

Using size and weight, the portability grade of the K-3 and Q-S1 is 59 and 92 respectively.

Pentax K-3 vs Pentax Q-S1 top view buttons comparison

Pentax K-3 vs Pentax Q-S1 Sensor Comparison

Often, it can be difficult to visualize the difference in sensor dimensions merely by checking out specifications. The image underneath should give you a stronger sense of the sensor measurements in the K-3 and Q-S1.

Plainly, both the cameras offer different megapixel count and different sensor dimensions. The K-3 with its larger sensor is going to make achieving shallower DOF easier and the Pentax K-3 will show more detail with its extra 12 Megapixels. Greater resolution can also let you crop photos a little more aggressively.

Pentax K-3 vs Pentax Q-S1 sensor size comparison

Pentax K-3 vs Pentax Q-S1 Screen and ViewFinder

Pentax K-3 vs Pentax Q-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-3 as a Portrait photography camera
Pentax Q-S1 as a Portrait photography camera
79
has manual focus
megapixel count good (24 megapixels)
sensor size is good (APS-C)
supports face detection focusing
delivers RAW formats
46
focusing manually
features face detect autofocus
saves RAW files
MP count low (12 megapixels)
sensor size is very small (1/1.7")
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Street Comparison

Street photography with Pentax K-3
Street photography with Pentax Q-S1
69
built in image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW formats
weather sealing
very good ISO range (51,200)
screen is fixed
69
has image stabilization (Sensor based)
saves RAW files
lighter than competitors (203 grams)
screen is fixed
sensor size is very small (1/1.7")
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Sports Comparison

Pentax K-3 Sports photography features
Pentax Q-S1 Sports photography features
76
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based)
megapixel count good (24MP)
sensor size is good (APS-C)
supports tracking autofocus
weather sealing
sensor has phase detect AF
low battery life (560 CIPA)
37
high shutter speed (1/8,000s)
has image stabilization (Sensor based)
features tracking focus
painfully slow continuous shooting (5.0 fps)
MP count low (12MP)
sensor size is very small (1/1.7")
not so great battery (250 shots)
doesn't have phase detect autofocus
Photography Glossary

Travel Comparison

Pentax K-3 as a Travel photography camera
Pentax Q-S1 as a Travel photography camera
60
weather sealing
megapixel count good (24MP)
has built in flash
low battery life (560 shots)
display is not selfie friendly
60
lighter than competitors (203g)
flash built-in
not so great battery (250 shots)
MP count low (12 megapixels)
doesn't feature selfie friendly display
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Landscape Comparison

Pentax K-3 as a Landscape photography camera
Pentax Q-S1 as a Landscape photography camera
77
has manual focus
interchangeable lenses (Pentax KAF2 mount)
pretty good screen size (3.2 inch)
built in image stabilization (Sensor based)
megapixel count good (24 megapixels)
sensor size is good (APS-C)
does not have anti-alias filter
very good ISO range (51,200)
delivers RAW formats
weather sealing
has double storage slots
low battery life (560 shots)
55
focusing manually
interchangeable lenses (Pentax Q mount)
nice screen size (3 inch)
has image stabilization (Sensor based)
saves RAW files
MP count low (12MP)
sensor size is very small (1/1.7")
not so great battery (250 per charge)
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Vlogging Comparison

Vlogging with Pentax K-3
Vlogging with Pentax Q-S1
34
built in image stabilization (Sensor based)
supports face detection focusing
high res video (1920 x 1080 resolution)
includes external microphone port
display is not selfie friendly
35
has image stabilization (Sensor based)
features face detect autofocus
video res high (1920 x 1080 resolution)
lighter than competitors (203g)
doesn't feature selfie friendly display
doesn't have microphone port
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Pentax K-3 vs Pentax Q-S1 Specifications

Detailed spec comparison table for Pentax K-3 and Pentax Q-S1
 Pentax K-3Pentax Q-S1
General Information
Make Pentax Pentax
Model Pentax K-3 Pentax Q-S1
Class Advanced DSLR Entry-Level Mirrorless
Introduced 2014-04-10 2014-08-04
Body design Mid-size SLR Rangefinder-style mirrorless
Sensor Information
Processor Chip Prime III Q Engine
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1/1.7"
Sensor measurements 23.5 x 15.6mm 7.44 x 5.58mm
Sensor surface area 366.6mm² 41.5mm²
Sensor resolution 24 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Maximum resolution 6016 x 4000 4000 x 3000
Maximum native ISO 51200 12800
Lowest native ISO 100 100
RAW files
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 27 -
Cross focus points 25 -
Lens
Lens mount Pentax KAF2 Pentax Q
Total lenses 151 8
Focal length multiplier 1.5 4.8
Screen
Range of display Fixed Type Fixed Type
Display diagonal 3.2 inches 3 inches
Display resolution 1,037k dot 460k dot
Selfie friendly
Liveview
Touch display
Display tech TFT LCD monitor -
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 100 percent -
Viewfinder magnification 0.64x -
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/8000 seconds
Continuous shooting speed 8.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash range 13.00 m (at ISO 100) 4.90 m (at ISO 100)
Flash settings Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual Auto, redeye reduction, slow sync, trailing curtain sync
Hot shoe
AE bracketing
WB bracketing
Maximum flash sync 1/180 seconds -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) 1920 x 1080 (30,25, 24p), 1280 x 720 (30, 25, 24p), 640 x 480 (30, 25, 24p)
Maximum video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 MPEG-4, H.264
Microphone jack
Headphone jack
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800g (1.76 pounds) 203g (0.45 pounds)
Dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 105 x 58 x 34mm (4.1" x 2.3" x 1.3")
DXO scores
DXO All around score 80 not tested
DXO Color Depth score 23.7 not tested
DXO Dynamic range score 13.4 not tested
DXO Low light score 1216 not tested
Other
Battery life 560 photos 250 photos
Battery form Battery Pack Battery Pack
Battery model D-LI90 D-LI68
Self timer Yes ( 2 or 12 seconds) Yes (2 or 12 sec)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC SD/SDHC/SDXC card
Storage slots 2 Single
Pricing at launch $639 $250