Pentax 645Z vs Sony RX10 II
49 Imaging
80 Features
74 Overall
77


58 Imaging
52 Features
77 Overall
62
Pentax 645Z vs Sony RX10 II Key Specs
(Full Review)
- 51MP - Medium format Sensor
- 3.2" Tilting Screen
- ISO 100 - 204800
- No Anti-Alias Filter
- 1920 x 1080 video
- Pentax 645AF2 Mount
- 1550g - 156 x 117 x 123mm
- Introduced April 2014
- Previous Model is Pentax 645D
(Full Review)
- 20MP - 1" Sensor
- 3" Tilting Screen
- ISO 125 - 12800 (Increase to 25600)
- Optical Image Stabilization
- 3840 x 2160 video
- 24-200mm (F2.8) lens
- 813g - 129 x 88 x 102mm
- Announced June 2015
- Succeeded the Sony RX10
- Newer Model is Sony RX10 III

Pentax 645Z vs Sony RX10 II Overview
Let's examine more in depth at the Pentax 645Z vs Sony RX10 II, former being a Pro DSLR while the latter is a Large Sensor Superzoom by brands Pentax and Sony. There exists a large gap among the sensor resolutions of the 645Z (51MP) and RX10 II (20MP) and the 645Z (Medium format) and RX10 II (1") enjoy totally different sensor measurements.

The 645Z was revealed 14 months prior to the RX10 II which makes the cameras a generation apart from one another. Each of these cameras offer different body type with the Pentax 645Z being a Large SLR camera and the Sony RX10 II being a SLR-like (bridge) camera.
Before getting straight into a step-by-step comparison, below is a quick view of how the 645Z scores vs the RX10 II when it comes to portability, imaging, features and an overall rating.

Pentax 645Z vs Sony RX10 II Gallery
The following is a preview of the gallery images for Pentax 645Z & Sony Cyber-shot DSC-RX10 II. The full galleries are provided at Pentax 645Z Gallery & Sony RX10 II Gallery.
Reasons to pick Pentax 645Z over the Sony RX10 II
645Z | RX10 II | |||
---|---|---|---|---|
Screen sizing | 3.2" | ![]() | 3" | Bigger screen (+0.2") |
Reasons to pick Sony RX10 II over the Pentax 645Z
RX10 II | 645Z | |||
---|---|---|---|---|
Announced | June 2015 | ![]() | April 2014 | Fresher by 14 months |
Screen resolution | 1229k | ![]() | 1037k | Sharper screen (+192k dot) |
Common features in the Pentax 645Z and Sony RX10 II
645Z | RX10 II | |||
---|---|---|---|---|
Focus manually | ![]() | More exact focus | ||
Screen type | Tilting | ![]() | Tilting | Tilting screen |
Selfie screen | ![]() | No selfie screen | ||
Touch screen | ![]() | Neither includes Touch screen |
Pentax 645Z vs Sony RX10 II Physical Comparison
For anyone who is looking to carry your camera frequently, you'll need to factor its weight and volume. The Pentax 645Z features physical measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") and a weight of 1550 grams (3.42 lbs) whilst the Sony RX10 II has sizing of 129mm x 88mm x 102mm (5.1" x 3.5" x 4.0") with a weight of 813 grams (1.79 lbs).
Check out the Pentax 645Z vs Sony RX10 II in our brand new Camera plus Lens Size Comparison Tool.
Take into account, the weight of an ILC will vary dependant on the lens you select at the time. The following is the front view over all size comparison of the 645Z against the RX10 II.

Taking into consideration dimensions and weight, the portability rating of the 645Z and RX10 II is 49 and 58 respectively.

Pentax 645Z vs Sony RX10 II Sensor Comparison
Quite often, it is very difficult to see the contrast in sensor sizing purely by checking out technical specs. The photograph here will help give you a much better sense of the sensor measurements in the 645Z and RX10 II.
As you have seen, the 2 cameras enjoy different resolutions and different sensor sizing. The 645Z with its bigger sensor will make shooting shallower DOF less difficult and the Pentax 645Z will show more detail because of its extra 31MP. Higher resolution can also make it easier to crop shots far more aggressively. The older 645Z will be behind with regard to sensor tech.

Pentax 645Z vs Sony RX10 II Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax 645Z vs Sony RX10 II Specifications
Pentax 645Z | Sony Cyber-shot DSC-RX10 II | |
---|---|---|
General Information | ||
Brand | Pentax | Sony |
Model | Pentax 645Z | Sony Cyber-shot DSC-RX10 II |
Type | Pro DSLR | Large Sensor Superzoom |
Introduced | 2014-04-15 | 2015-06-10 |
Physical type | Large SLR | SLR-like (bridge) |
Sensor Information | ||
Chip | PRIME III | Bionz X |
Sensor type | CMOS | BSI-CMOS |
Sensor size | Medium format | 1" |
Sensor measurements | 44 x 33mm | 13.2 x 8.8mm |
Sensor area | 1,452.0mm² | 116.2mm² |
Sensor resolution | 51 megapixel | 20 megapixel |
Anti aliasing filter | ||
Aspect ratio | 4:3 | 1:1, 4:3, 3:2 and 16:9 |
Highest Possible resolution | 8256 x 6192 | 5472 x 3648 |
Maximum native ISO | 204800 | 12800 |
Maximum enhanced ISO | - | 25600 |
Lowest native ISO | 100 | 125 |
RAW data | ||
Lowest enhanced ISO | - | 64 |
Autofocusing | ||
Manual focus | ||
AF touch | ||
AF continuous | ||
AF single | ||
AF tracking | ||
Selective AF | ||
AF center weighted | ||
Multi area AF | ||
AF live view | ||
Face detection focusing | ||
Contract detection focusing | ||
Phase detection focusing | ||
Number of focus points | 27 | 25 |
Lens | ||
Lens mount | Pentax 645AF2 | fixed lens |
Lens focal range | - | 24-200mm (8.3x) |
Maximum aperture | - | f/2.8 |
Macro focus range | - | 3cm |
Amount of lenses | 6 | - |
Focal length multiplier | 0.8 | 2.7 |
Screen | ||
Type of screen | Tilting | Tilting |
Screen diagonal | 3.2 inch | 3 inch |
Screen resolution | 1,037 thousand dots | 1,229 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch function | ||
Viewfinder Information | ||
Viewfinder | Optical (pentaprism) | Electronic |
Viewfinder resolution | - | 2,359 thousand dots |
Viewfinder coverage | 98% | 100% |
Viewfinder magnification | 0.85x | 0.7x |
Features | ||
Min shutter speed | 30 secs | 30 secs |
Max shutter speed | 1/4000 secs | 1/2000 secs |
Max silent shutter speed | - | 1/32000 secs |
Continuous shutter rate | 3.0fps | 14.0fps |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Exposure compensation | Yes | Yes |
Set WB | ||
Image stabilization | ||
Inbuilt flash | ||
Flash range | no built-in flash | 10.20 m |
Flash modes | 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 | Auto, fill-flash, slow sync, rear sync, off |
Hot shoe | ||
AE bracketing | ||
WB bracketing | ||
Max flash synchronize | 1/125 secs | - |
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) | 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p) ,1440 x 1080 (30p), 640 x 480 (30p) |
Maximum video resolution | 1920x1080 | 3840x2160 |
Video file format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC S |
Microphone port | ||
Headphone port | ||
Connectivity | ||
Wireless | None | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | Optional | None |
Physical | ||
Environmental sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 1550 grams (3.42 pounds) | 813 grams (1.79 pounds) |
Dimensions | 156 x 117 x 123mm (6.1" x 4.6" x 4.8") | 129 x 88 x 102mm (5.1" x 3.5" x 4.0") |
DXO scores | ||
DXO Overall score | 101 | 70 |
DXO Color Depth score | 26.0 | 23.0 |
DXO Dynamic range score | 14.7 | 12.6 |
DXO Low light score | 4505 | 531 |
Other | ||
Battery life | 650 images | 400 images |
Battery type | Battery Pack | Battery Pack |
Battery model | D-LI90 | NP-FW50 |
Self timer | Yes (2 or 10 secs) | Yes (2 or 10 sec, continuous) |
Time lapse recording | ||
Type of storage | Dual SD/SDHC/SDXC slots | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
Card slots | Two | One |
Price at release | $5,024 | $998 |