Pentax 645D vs Samsung NX11
50 Imaging
75 Features
52 Overall
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80 Imaging
54 Features
50 Overall
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Pentax 645D vs Samsung NX11 Key Specs
(Full Review)
- 40MP - Medium format Sensor
- 3" Fixed Display
- ISO 200 - 1600
- No Anti-Alias Filter
- No Video
- Pentax 645AF2 Mount
- 1480g - 156 x 117 x 119mm
- Launched March 2010
- Refreshed by Pentax 645Z
(Full Review)
- 15MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 3200
- 1280 x 720 video
- Samsung NX Mount
- 499g - 123 x 87 x 40mm
- Launched December 2010
- Older Model is Samsung NX10
- Later Model is Samsung NX20
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Here is a detailed analysis of the Pentax 645D vs Samsung NX11, former being a Pro DSLR while the latter is a Entry-Level Mirrorless by rivals Pentax and Samsung. There exists a sizable gap among the sensor resolutions of the 645D (40MP) and NX11 (15MP) and the 645D (Medium format) and NX11 (APS-C) have different sensor size.
Samsung Releases Faster Versions of EVO MicroSD CardsThe 645D was announced 9 months prior to the NX11 so they are both of a similar age. The two cameras have different body design with the Pentax 645D being a Large SLR camera and the Samsung NX11 being a SLR-style mirrorless camera.
Before diving into a in-depth comparison, here is a quick introduction of how the 645D scores against the NX11 in terms of portability, imaging, features and an overall rating.
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The following is a preview of the gallery images for Pentax 645D & Samsung NX11. The whole galleries are available at Pentax 645D Gallery & Samsung NX11 Gallery.
Reasons to pick Pentax 645D over the Samsung NX11
| 645D | NX11 | |||
|---|---|---|---|---|
| Screen resolution | 921k | 614k | Clearer screen (+307k dot) |
Reasons to pick Samsung NX11 over the Pentax 645D
| NX11 | 645D | |||
|---|---|---|---|---|
| Launched | December 2010 | March 2010 | Fresher by 9 months |
Common features in the Pentax 645D and Samsung NX11
| 645D | NX11 | |||
|---|---|---|---|---|
| Focus manually | More exact focus | |||
| Screen type | Fixed | Fixed | Fixed screen | |
| Screen dimensions | 3" | 3" | Equal screen size | |
| Selfie screen | Absent selfie screen | |||
| Touch friendly screen | Neither includes Touch friendly screen |
Pentax 645D vs Samsung NX11 Physical Comparison
For anyone who is looking to carry your camera, you will need to take into account its weight and dimensions. The Pentax 645D features outer dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") along with a weight of 1480 grams (3.26 lbs) while the Samsung NX11 has dimensions of 123mm x 87mm x 40mm (4.8" x 3.4" x 1.6") accompanied by a weight of 499 grams (1.10 lbs).
Check out the Pentax 645D vs Samsung NX11 in our brand new Camera plus Lens Size Comparison Tool.
Bear in mind, the weight of an ILC will vary depending on the lens you have chosen during that time. Underneath is a front view overall size comparison of the 645D against the NX11.

Looking at dimensions and weight, the portability grade of the 645D and NX11 is 50 and 80 respectively.
Pentax 645D vs Samsung NX11 Sensor Comparison
Typically, it is hard to picture the gap in sensor sizing just by viewing specs. The graphic underneath may offer you a much better sense of the sensor sizes in the 645D and NX11.
All in all, the two cameras provide different megapixel count and different sensor sizing. The 645D having a bigger sensor is going to make achieving shallow depth of field less difficult and the Pentax 645D will provide you with greater detail with its extra 25 Megapixels. Higher resolution can also help you crop pictures more aggressively. The older 645D will be disadvantaged with regard to sensor innovation.
Pentax 645D vs Samsung NX11 Screen and ViewFinder
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Pentax 645D vs Samsung NX11 Specifications
| Pentax 645D | Samsung NX11 | |
|---|---|---|
| General Information | ||
| Make | Pentax | Samsung |
| Model type | Pentax 645D | Samsung NX11 |
| Class | Pro DSLR | Entry-Level Mirrorless |
| Launched | 2010-03-10 | 2010-12-28 |
| Body design | Large SLR | SLR-style mirrorless |
| Sensor Information | ||
| Chip | Prime II | DRIM Engine |
| Sensor type | CCD | CMOS |
| Sensor size | Medium format | APS-C |
| Sensor measurements | 44 x 33mm | 23.4 x 15.6mm |
| Sensor surface area | 1,452.0mm² | 365.0mm² |
| Sensor resolution | 40MP | 15MP |
| Anti alias filter | ||
| Aspect ratio | 4:3 | 3:2 and 16:9 |
| Maximum resolution | 7264 x 5440 | 4592 x 3056 |
| Maximum native ISO | 1600 | 3200 |
| Min native ISO | 200 | 100 |
| RAW format | ||
| Min boosted ISO | 100 | - |
| Autofocusing | ||
| Manual focusing | ||
| Touch to focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Autofocus tracking | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | 11 | 15 |
| Lens | ||
| Lens mount type | Pentax 645AF2 | Samsung NX |
| Amount of lenses | 6 | 32 |
| Focal length multiplier | 0.8 | 1.5 |
| Screen | ||
| Display type | Fixed Type | Fixed Type |
| Display size | 3 inch | 3 inch |
| Resolution of display | 921k dot | 614k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch display | ||
| Display tech | TFT Color LCD with wide-viewing angle and with AR coating | Active Matrix OLED screen |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Electronic |
| Viewfinder coverage | 98 percent | 100 percent |
| Viewfinder magnification | 0.85x | 0.57x |
| Features | ||
| Lowest shutter speed | 30 secs | 30 secs |
| Highest shutter speed | 1/4000 secs | 1/4000 secs |
| Continuous shooting speed | 1.0 frames per second | 3.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Set white balance | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash distance | no built-in flash | 11.00 m |
| Flash options | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain | Auto, On, Off, Red-eye, Fill-in, 1st/2nd Curtain, Smart Flash, Manual |
| External flash | ||
| Auto exposure bracketing | ||
| WB bracketing | ||
| Highest flash sync | 1/125 secs | 1/180 secs |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Supported video resolutions | - | 1280 x 720 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) |
| Maximum video resolution | None | 1280x720 |
| Video format | - | H.264 |
| Microphone jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | Optional |
| Physical | ||
| Environmental seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 1480 grams (3.26 pounds) | 499 grams (1.10 pounds) |
| Physical dimensions | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") | 123 x 87 x 40mm (4.8" x 3.4" x 1.6") |
| DXO scores | ||
| DXO All around rating | 82 | 63 |
| DXO Color Depth rating | 24.6 | 22.7 |
| DXO Dynamic range rating | 12.6 | 10.8 |
| DXO Low light rating | 1262 | 553 |
| Other | ||
| Battery life | 800 pictures | 400 pictures |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | D-LI90 | BP1130 |
| Self timer | Yes (2 or 10 sec) | Yes (2 sec to 30 sec) |
| Time lapse recording | ||
| Storage media | SD/SDHC | SD/SDHC |
| Storage slots | 2 | 1 |
| Retail cost | $4,000 | $626 |