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Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5

Portability
59
Imaging
65
Features
84
Overall
72
Pentax K-3 II front
 
Ricoh GXR GR Lens A12 28mm F2.5 front
Portability
88
Imaging
52
Features
37
Overall
46

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Key Specs

Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Announced April 2015
  • Old Model is Pentax K-3
Ricoh GXR GR Lens A12 28mm F2.5
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 3200
  • 1280 x 720 video
  • 28mm (F2.5) lens
  • 140g - 113 x 70 x 56mm
  • Introduced September 2010
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Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Overview

Let's take a closer look at the Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5, former being a Advanced DSLR while the latter is a Advanced Mirrorless by manufacturers Pentax and Ricoh. There is a considerable difference among the resolutions of the K-3 II (24MP) and GXR GR Lens A12 28mm F2.5 (12MP) but both cameras boast the identical sensor sizing (APS-C).

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The K-3 II was launched 4 years later than the GXR GR Lens A12 28mm F2.5 and that is a fairly large difference as far as camera tech is concerned. Both cameras feature different body design with the Pentax K-3 II being a Mid-size SLR camera and the Ricoh GXR GR Lens A12 28mm F2.5 being a Rangefinder-style mirrorless camera.

Before diving into a full comparison, here is a short highlight of how the K-3 II scores vs the GXR GR Lens A12 28mm F2.5 with regard to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-3 II over the Ricoh GXR GR Lens A12 28mm F2.5

 K-3 II GXR GR Lens A12 28mm F2.5 
IntroducedApril 2015September 2010More recent by 56 months
Screen size3.2"3"Bigger screen (+0.2")
Screen resolution1037k920kSharper screen (+117k dot)

Reasons to pick Ricoh GXR GR Lens A12 28mm F2.5 over the Pentax K-3 II

 GXR GR Lens A12 28mm F2.5 K-3 II 

Common features in the Pentax K-3 II and Ricoh GXR GR Lens A12 28mm F2.5

 K-3 II GXR GR Lens A12 28mm F2.5 
Manually focus Dial precise focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither comes with selfie screen
Touch screen Lack of Touch screen

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Physical Comparison

For those who are going to lug around your camera regularly, you have to factor its weight and volume. The Pentax K-3 II comes with outside dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs) while the Ricoh GXR GR Lens A12 28mm F2.5 has sizing of 113mm x 70mm x 56mm (4.4" x 2.8" x 2.2") along with a weight of 140 grams (0.31 lbs).

Look at the Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary based on the lens you are using at the time. Here is a front view measurements comparison of the K-3 II against the GXR GR Lens A12 28mm F2.5.

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 size comparison

Looking at size and weight, the portability rating of the K-3 II and GXR GR Lens A12 28mm F2.5 is 59 and 88 respectively.

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 top view buttons comparison

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Sensor Comparison

Oftentimes, its hard to imagine the difference in sensor measurements only by going through specifications. The visual underneath might give you a more clear sense of the sensor dimensions in the K-3 II and GXR GR Lens A12 28mm F2.5.

Plainly, the two cameras come with the identical sensor size albeit different resolution. You can count on the Pentax K-3 II to show greater detail utilizing its extra 12 Megapixels. Higher resolution will also allow you to crop pictures a good deal more aggressively. The more recent K-3 II should have a benefit with regard to sensor technology.

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 sensor size comparison

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Screen and ViewFinder

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-3 II
Portrait photography with Ricoh GXR GR Lens A12 28mm F2.5
79
has manual focus
sensor resolution is decent (24 megapixels)
sensor size is good (APS-C)
offers face detect focusing
supports RAW files
57
manual focus
sensor size is decent (APS-C)
offers face detect focusing
supports RAW files
doesn't have liveview
low resolution sensor (12MP)
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Street Comparison

Pentax K-3 II Street photography details
Ricoh GXR GR Lens A12 28mm F2.5 Street photography details
69
image stabilization (Sensor based)
sensor size is good (APS-C)
supports RAW files
weather proofing
great high ISO (51,200)
fixed screen
70
sensor size is decent (APS-C)
supports RAW files
lighter than competition (140g)
screen is fixed
no image stabilization
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Sports Comparison

Sports photography with Pentax K-3 II
Sports photography with Ricoh GXR GR Lens A12 28mm F2.5
76
max shutter speed is good (1/8,000s)
image stabilization (Sensor based)
sensor resolution is decent (24 megapixels)
sensor size is good (APS-C)
offers tracking focus
weather proofing
supports phase detect AF
bad battery pack (720 per charge)
32
sensor size is decent (APS-C)
focal length is fixed (28mm)
doesn't have liveview
max fps very slow (5.0 frames per second)
no image stabilization
low resolution sensor (12 megapixels)
bad battery pack (320 shots)
lacks phase detect AF
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Travel Comparison

Travel photography with Pentax K-3 II
Travel photography with Ricoh GXR GR Lens A12 28mm F2.5
56
weather proofing
sensor resolution is decent (24 megapixels)
bad battery pack (720 per charge)
screen isn't selfie friendly
58
lighter than competition (140 grams)
flash built-in
bad battery pack (320 shots)
low resolution sensor (12 megapixels)
does not feature selfie friendly screen
sluggish maximum aperture (f2.5)
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Landscape Comparison

Pentax K-3 II Landscape photography advice
Ricoh GXR GR Lens A12 28mm F2.5 Landscape photography advice
77
has manual focus
swap lenses (Pentax KAF2 mount)
nice screen size (3.2 inches)
image stabilization (Sensor based)
sensor resolution is decent (24 megapixels)
sensor size is good (APS-C)
no anti aliasing filter
great high ISO (51,200)
supports RAW files
weather proofing
2 card slots
bad battery pack (720 CIPA)
47
manual focus
pretty good screen size (3")
sensor size is decent (APS-C)
supports RAW files
lens is fixed (fixed lens mount)
focal length is fixed (28mm)
sluggish maximum aperture (f2.5)
doesn't have liveview
no image stabilization
low resolution sensor (12 megapixels)
bad battery pack (320 CIPA)
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Vlogging Comparison

Vlogging with Pentax K-3 II
Vlogging with Ricoh GXR GR Lens A12 28mm F2.5
34
image stabilization (Sensor based)
offers face detect focusing
high video quality (1920 x 1080 resolution)
comes with mic support
screen isn't selfie friendly
28
offers face detect focusing
lighter than competition (140g)
sluggish maximum aperture (f2.5)
does not feature selfie friendly screen
no image stabilization
video resolution low (1280 x 720 pixels)
doesn't have microphone port
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Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Specifications

Detailed spec comparison table for Pentax K-3 II and Ricoh GXR GR Lens A12 28mm F2.5
 Pentax K-3 IIRicoh GXR GR Lens A12 28mm F2.5
General Information
Make Pentax Ricoh
Model Pentax K-3 II Ricoh GXR GR Lens A12 28mm F2.5
Class Advanced DSLR Advanced Mirrorless
Announced 2015-04-23 2010-09-21
Body design Mid-size SLR Rangefinder-style mirrorless
Sensor Information
Processor Chip Prime III GR Engine III
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.6 x 15.7mm
Sensor area 366.6mm² 370.5mm²
Sensor resolution 24 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Highest Possible resolution 6016 x 4000 4288 x 2848
Maximum native ISO 51200 3200
Minimum native ISO 100 200
RAW photos
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 27 -
Cross focus points 25 -
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - 28mm (1x)
Max aperture - f/2.5
Total lenses 151 -
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen size 3.2" 3"
Resolution of screen 1,037k dot 920k dot
Selfie friendly
Liveview
Touch screen
Screen tech - TFT color LCD
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic (optional)
Viewfinder coverage 100 percent -
Viewfinder magnification 0.64x -
Features
Min shutter speed 30 seconds 180 seconds
Max shutter speed 1/8000 seconds 1/3200 seconds
Continuous shutter speed 8.3fps 5.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash range no built-in flash -
Flash modes Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) Auto, On, Off, Red-Eye, Slow Sync, Manual
External flash
AE bracketing
WB bracketing
Max 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) 1280 x 720 (24 fps), 640 x 480 (24 fps), 320 x 240 (24 fps)
Maximum video resolution 1920x1080 1280x720
Video format MPEG-4, H.264 MPEG-4
Microphone jack
Headphone jack
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800g (1.76 lbs) 140g (0.31 lbs)
Physical dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 113 x 70 x 56mm (4.4" x 2.8" x 2.2")
DXO scores
DXO Overall score 80 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.6 not tested
DXO Low light score 1106 not tested
Other
Battery life 720 pictures 320 pictures
Type of battery Battery Pack Battery Pack
Battery model D-LI90 DB-90
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec, 10 sec (3 images) )
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC SD/SDHC, Internal
Storage slots 2 Single
Launch price $829 $566