Pentax 645D vs Sony RX1R II
50 Imaging
75 Features
52 Overall
65
78 Imaging
75 Features
65 Overall
71
Pentax 645D vs Sony RX1R II Key Specs
(Full Review)
- 40MP - Medium format Sensor
- 3" Fixed Screen
- ISO 200 - 1600
- No Anti-Alias Filter
- No Video
- Pentax 645AF2 Mount
- 1480g - 156 x 117 x 119mm
- Launched March 2010
- Updated by Pentax 645Z
(Full Review)
- 42MP - Full frame Sensor
- 3" Tilting Screen
- ISO 50 - 25600 (Push to 102400)
- No Anti-Alias Filter
- 1920 x 1080 video
- 35mm (F2.0) lens
- 507g - 113 x 65 x 72mm
- Launched October 2015
- Old Model is Sony RX1R
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Following is a detailed analysis of the Pentax 645D versus Sony RX1R II, one is a Pro DSLR and the latter is a Large Sensor Compact by rivals Pentax and Sony. The resolution of the 645D (40MP) and the RX1R II (42MP) is pretty comparable but the 645D (Medium format) and RX1R II (Full frame) boast different sensor sizes.
Photography GlossaryThe 645D was unveiled 6 years before the RX1R II which is a fairly sizable gap as far as camera tech is concerned. Each of the cameras have different body design with the Pentax 645D being a Large SLR camera and the Sony RX1R II being a Large Sensor Compact camera.
Before diving right into a full comparison, here is a short highlight of how the 645D scores vs the RX1R II in terms of portability, imaging, features and an overall score.
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The following is a preview of the gallery images for Pentax 645D and Sony Cyber-shot DSC-RX1R II. The full galleries are viewable at Pentax 645D Gallery and Sony RX1R II Gallery.
Reasons to pick Pentax 645D over the Sony RX1R II
| 645D | RX1R II |
|---|
Reasons to pick Sony RX1R II over the Pentax 645D
| RX1R II | 645D | |||
|---|---|---|---|---|
| Launched | October 2015 |  | March 2010 | More modern by 68 months |
| Screen type | Tilting |  | Fixed | Tilting screen |
| Screen resolution | 1229k |  | 921k | Sharper screen (+308k dot) |
Common features in the Pentax 645D and Sony RX1R II
| 645D | RX1R II | |||
|---|---|---|---|---|
| Focus manually |  | More accurate focus | ||
| Screen dimensions | 3" |  | 3" | Equal screen dimensions |
| Selfie screen |  | Missing selfie screen | ||
| Touch screen |  | Neither has Touch screen |
Pentax 645D vs Sony RX1R II Physical Comparison
For anyone who is looking to carry around your camera, you will have to factor in its weight and size. The Pentax 645D has outer dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs) and the Sony RX1R II has specifications of 113mm x 65mm x 72mm (4.4" x 2.6" x 2.8") and a weight of 507 grams (1.12 lbs).
Check out the Pentax 645D versus Sony RX1R II in the all new Camera with Lens Size Comparison Tool.
Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are using at that time. The following is a front view over all size comparison of the 645D versus the RX1R II.
Using size and weight, the portability grade of the 645D and RX1R II is 50 and 78 respectively.
Pentax 645D vs Sony RX1R II Sensor Comparison
Oftentimes, its tough to visualize the gap in sensor sizes simply by seeing specifications. The pic below will help give you a far better sense of the sensor dimensions in the 645D and RX1R II.
Plainly, the two cameras have different megapixel count and different sensor sizes. The 645D having a bigger sensor is going to make getting shallow DOF simpler and the Sony RX1R II will produce extra detail having an extra 2 Megapixels. Higher resolution will help you crop pictures a bit more aggressively. The more aged 645D will be disadvantaged when it comes to sensor tech.
Pentax 645D vs Sony RX1R II Screen and ViewFinder
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Pentax 645D vs Sony RX1R II Specifications
| Pentax 645D | Sony Cyber-shot DSC-RX1R II | |
|---|---|---|
| General Information | ||
| Brand Name | Pentax | Sony |
| Model | Pentax 645D | Sony Cyber-shot DSC-RX1R II |
| Category | Pro DSLR | Large Sensor Compact |
| Launched | 2010-03-10 | 2015-10-13 |
| Physical type | Large SLR | Large Sensor Compact |
| Sensor Information | ||
| Powered by | Prime II | BIONZ X |
| Sensor type | CCD | BSI-CMOS |
| Sensor size | Medium format | Full frame |
| Sensor dimensions | 44 x 33mm | 35.9 x 24mm |
| Sensor area | 1,452.0mm² | 861.6mm² |
| Sensor resolution | 40MP | 42MP |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 1:1, 4:3, 3:2 and 16:9 |
| Max resolution | 7264 x 5440 | 7952 x 5304 |
| Max native ISO | 1600 | 25600 |
| Max enhanced ISO | - | 102400 |
| Lowest native ISO | 200 | 50 |
| RAW pictures | ||
| Lowest enhanced ISO | 100 | - |
| Autofocusing | ||
| Manual focus | ||
| Touch to focus | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| Selective AF | ||
| Center weighted AF | ||
| Multi area AF | ||
| AF live view | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 11 | 25 |
| Lens | ||
| Lens mounting type | Pentax 645AF2 | fixed lens |
| Lens focal range | - | 35mm (1x) |
| Max aperture | - | f/2.0 |
| Macro focus distance | - | 14cm |
| Number of lenses | 6 | - |
| Crop factor | 0.8 | 1 |
| Screen | ||
| Screen type | Fixed Type | Tilting |
| Screen sizing | 3 inch | 3 inch |
| Resolution of screen | 921 thousand dots | 1,229 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Screen technology | TFT Color LCD with wide-viewing angle and with AR coating | - |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Electronic |
| Viewfinder resolution | - | 2,359 thousand dots |
| Viewfinder coverage | 98% | 100% |
| Viewfinder magnification | 0.85x | 0.74x |
| Features | ||
| Minimum shutter speed | 30 seconds | 30 seconds |
| Fastest shutter speed | 1/4000 seconds | 1/4000 seconds |
| Continuous shutter rate | 1.0fps | 5.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | no built-in flash | no built-in flash |
| Flash options | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain | Off, auto, fill flash, slow sync, rear sync, wireless |
| External flash | ||
| AE bracketing | ||
| WB bracketing | ||
| Fastest flash synchronize | 1/125 seconds | 1/4000 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | - | 1920 x 1080 (60p, 60i, 30p, 24p), 1280 x 720 (120p, 30p) |
| Max video resolution | None | 1920x1080 |
| Video format | - | MPEG-4, AVCHD, XAVC S, H.264 |
| Mic port | ||
| Headphone port | ||
| Connectivity | ||
| Wireless | None | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 1480g (3.26 lb) | 507g (1.12 lb) |
| Physical dimensions | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") | 113 x 65 x 72mm (4.4" x 2.6" x 2.8") |
| DXO scores | ||
| DXO Overall score | 82 | 97 |
| DXO Color Depth score | 24.6 | 25.8 |
| DXO Dynamic range score | 12.6 | 13.9 |
| DXO Low light score | 1262 | 3204 |
| Other | ||
| Battery life | 800 shots | 220 shots |
| Battery type | Battery Pack | Battery Pack |
| Battery model | D-LI90 | NP-BX1 |
| Self timer | Yes (2 or 10 sec) | Yes (2,5, 10 sec) |
| Time lapse feature | ||
| Storage type | SD/SDHC | SD/SDHC/SDXC, Memory Stick Pro Duo |
| Card slots | Two | 1 |
| Launch price | $4,000 | $3,300 |