Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5
59 Imaging
65 Features
84 Overall
72


88 Imaging
52 Features
37 Overall
46
Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Key Specs
(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
(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

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).

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.

Pentax K-3 II vs Ricoh GXR GR Lens A12 28mm F2.5 Gallery
This is a preview of the gallery photos for Pentax K-3 II & Ricoh GXR GR Lens A12 28mm F2.5. The complete galleries are provided at Pentax K-3 II Gallery & Ricoh GXR GR Lens A12 28mm F2.5 Gallery.
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 | |||
---|---|---|---|---|
Introduced | April 2015 | ![]() | September 2010 | More recent by 56 months |
Screen size | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Screen resolution | 1037k | ![]() | 920k | Sharper 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 |
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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 type | Fixed | ![]() | 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.
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.

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 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 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

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