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Pentax K-5 vs Sony NEX-3

Portability
60
Imaging
56
Features
82
Overall
66
Pentax K-5 front
 
Sony Alpha NEX-3 front
Portability
89
Imaging
54
Features
55
Overall
54

Pentax K-5 vs Sony NEX-3 Key Specs

Pentax K-5
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 80 - 12800 (Boost to 51200)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 740g - 131 x 97 x 73mm
  • Launched December 2010
  • Older Model is Pentax K-7
  • Replacement is Pentax K-5 IIs
Sony NEX-3
(Full Review)
  • 14MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 200 - 12800
  • 1280 x 720 video
  • Sony E Mount
  • 297g - 117 x 62 x 33mm
  • Announced June 2010
  • Later Model is Sony NEX-C3
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Pentax K-5 vs Sony NEX-3 Overview

Here is a in depth overview of the Pentax K-5 versus Sony NEX-3, former being a Advanced DSLR while the other is a Entry-Level Mirrorless by companies Pentax and Sony. The image resolution of the K-5 (16MP) and the NEX-3 (14MP) is very close and they use the exact same sensor sizes (APS-C).

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The K-5 was brought out 7 months later than the NEX-3 which means that they are both of a similar age. Both the cameras come with different body type with the Pentax K-5 being a Mid-size SLR camera and the Sony NEX-3 being a Rangefinder-style mirrorless camera.

Before we go straight into a complete comparison, below is a simple summation of how the K-5 grades vs the NEX-3 in regards to portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-5 over the Sony NEX-3

 K-5 NEX-3 
AnnouncedDecember 2010June 2010Fresher by 7 months
Display resolution921k920kSharper display (+1k dot)

Reasons to pick Sony NEX-3 over the Pentax K-5

 NEX-3 K-5 
Display typeTiltingFixed Tilting display

Common features in the Pentax K-5 and Sony NEX-3

 K-5 NEX-3 
Focus manually Very accurate focusing
Display dimension3"3"Identical display dimensions
Selfie screen Neither has selfie screen
Touch display Neither has Touch display

Pentax K-5 vs Sony NEX-3 Physical Comparison

In case you're looking to carry your camera frequently, you need to factor in its weight and measurements. The Pentax K-5 has external measurements of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") with a weight of 740 grams (1.63 lbs) and the Sony NEX-3 has proportions of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") along with a weight of 297 grams (0.65 lbs).

Take a look at the Pentax K-5 versus Sony NEX-3 in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will vary based on the lens you are utilizing during that time. Underneath is the front view measurements comparison of the K-5 versus the NEX-3.

Pentax K-5 vs Sony NEX-3 size comparison

Taking into consideration size and weight, the portability grade of the K-5 and NEX-3 is 60 and 89 respectively.

Pentax K-5 vs Sony NEX-3 top view buttons comparison

Pentax K-5 vs Sony NEX-3 Sensor Comparison

In many cases, it can be difficult to see the gap in sensor sizing merely by researching specifications. The graphic underneath will help offer you a more clear sense of the sensor sizing in the K-5 and NEX-3.

To sum up, the two cameras have got the exact same sensor measurements but not the same resolution. You can expect to see the Pentax K-5 to provide you with more detail having its extra 2 Megapixels. Greater resolution will let you crop photos much more aggressively. The fresher K-5 will have an edge with regard to sensor tech.

Pentax K-5 vs Sony NEX-3 sensor size comparison

Pentax K-5 vs Sony NEX-3 Screen and ViewFinder

Pentax K-5 vs Sony NEX-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-5 Portrait photography advice
Sony NEX-3 Portrait photography advice
73
you can focus manually
decent MP (16MP)
sensor size is nice (APS-C)
offers face detect focusing
supports RAW files
72
manual focus
sensor resolution is decent (14MP)
sensor size is nice (APS-C)
offers face detection focusing
supports RAW formats
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Street Comparison

Street photography with Pentax K-5
Street photography with Sony NEX-3
66
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
weather proof
screen does not articulate
76
has a tilting screen
sensor size is nice (APS-C)
supports RAW formats
does not have image stabilization
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Sports Comparison

Pentax K-5 Sports photography info
Sony NEX-3 Sports photography info
78
max shutter speed is good (1/8,000s)
has image stabilization (Sensor based)
decent MP (16 megapixels)
sensor size is nice (APS-C)
offers tracking focus
weather proof
supports phase detect AF
52
sensor resolution is decent (14MP)
sensor size is nice (APS-C)
does not have image stabilization
no phase detect AF
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Travel Comparison

Pentax K-5 Travel photography features
Sony NEX-3 Travel photography features
65
weather proof
decent MP (16MP)
has built in flash
does not contain selfie friendly screen
59
sensor resolution is decent (14 megapixels)
doesn't have Time Lapse recording
screen is not selfie friendly
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Landscape Comparison

Pentax K-5 Landscape photography highlights
Sony NEX-3 Landscape photography highlights
78
you can focus manually
swap lenses (Pentax KAF2 mount)
screen size is good (3")
has image stabilization (Sensor based)
decent MP (16MP)
sensor size is nice (APS-C)
supports RAW files
weather proof
68
manual focus
swap lenses (Sony E mount)
decent sized screen (3")
sensor resolution is decent (14MP)
sensor size is nice (APS-C)
supports RAW formats
does not have image stabilization
doesn't have Time Lapse recording
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Vlogging Comparison

Pentax K-5 Vlogging features
Sony NEX-3 Vlogging features
33
has image stabilization (Sensor based)
offers face detect focusing
high quality video (1920 x 1080 pxls)
comes with microphone jack
does not contain selfie friendly screen
27
offers face detection focusing
screen is not selfie friendly
does not have image stabilization
video res low (1280 x 720 pixels)
doesn't have external mic jack
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Pentax K-5 vs Sony NEX-3 Specifications

Detailed spec comparison table for Pentax K-5 and Sony NEX-3
 Pentax K-5Sony Alpha NEX-3
General Information
Brand Pentax Sony
Model type Pentax K-5 Sony Alpha NEX-3
Category Advanced DSLR Entry-Level Mirrorless
Launched 2010-12-18 2010-06-07
Body design Mid-size SLR Rangefinder-style mirrorless
Sensor Information
Powered by Prime II Bionz
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.7 x 15.7mm 23.4 x 15.6mm
Sensor area 372.1mm² 365.0mm²
Sensor resolution 16MP 14MP
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Highest Possible resolution 4928 x 3264 4592 x 3056
Maximum native ISO 12800 12800
Maximum enhanced ISO 51200 -
Lowest native ISO 80 200
RAW files
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 25
Cross type focus points 9 -
Lens
Lens support Pentax KAF2 Sony E
Number of lenses 151 121
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Tilting
Screen diagonal 3 inch 3 inch
Resolution of screen 921 thousand dot 920 thousand dot
Selfie friendly
Liveview
Touch operation
Screen technology TFT LCD monitor TFT Xtra Fine LCD
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 100% -
Viewfinder magnification 0.61x -
Features
Min shutter speed 30 seconds 30 seconds
Max shutter speed 1/8000 seconds 1/4000 seconds
Continuous shutter speed 7.0 frames/s 7.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 13.00 m (at ISO 100) 12.00 m
Flash options Auto, On, Off, Red-eye, Slow sync, High speed, Rear curtain and Wireless Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in
Hot shoe
AE bracketing
WB bracketing
Max flash sync 1/180 seconds 1/160 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (25 fps), 1280 x 720 (25, 30 fps), 640 x 424 (25, 30 fps) 1280 x 720 (30 fps), 640 x 480 (30 fps)
Maximum video resolution 1920x1080 1280x720
Video data format Motion JPEG MPEG-4
Mic input
Headphone input
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 740 gr (1.63 lb) 297 gr (0.65 lb)
Dimensions 131 x 97 x 73mm (5.2" x 3.8" x 2.9") 117 x 62 x 33mm (4.6" x 2.4" x 1.3")
DXO scores
DXO Overall rating 82 68
DXO Color Depth rating 23.7 22.1
DXO Dynamic range rating 14.1 12.0
DXO Low light rating 1162 830
Other
Battery life 980 photos 330 photos
Type of battery Battery Pack Battery Pack
Battery ID D-LI90 NPFW50
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec, 10sec (3 images))
Time lapse shooting
Type of storage SD/SDHC/SDXC SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots 1 1
Launch cost $800 $0