Olympus E-M5 vs Pentax 645Z
81 Imaging
52 Features
70 Overall
59
49 Imaging
80 Features
74 Overall
77
Olympus E-M5 vs Pentax 645Z Key Specs
(Full Review)
- 16MP - Four Thirds Sensor
- 3" Tilting Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1920 x 1080 video
- Micro Four Thirds Mount
- 425g - 122 x 89 x 43mm
- Launched April 2012
- Updated by Olympus E-M5 II
(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
- Revealed April 2014
- Replaced the Pentax 645D
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Below is a extended comparison of the Olympus E-M5 versus Pentax 645Z, former being a Advanced Mirrorless while the latter is a Pro DSLR by competitors Olympus and Pentax. There is a substantial difference between the image resolutions of the E-M5 (16MP) and 645Z (51MP) and the E-M5 (Four Thirds) and 645Z (Medium format) offer totally different sensor measurements.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe E-M5 was brought out 23 months prior to the 645Z which makes them a generation apart from each other. Both the cameras have different body design with the Olympus E-M5 being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.
Before going straight to a thorough comparison, here is a concise highlight of how the E-M5 scores vs the 645Z when it comes to portability, imaging, features and an overall grade.
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The following is a preview of the gallery photos for Olympus OM-D E-M5 & Pentax 645Z. The entire galleries are provided at Olympus E-M5 Gallery & Pentax 645Z Gallery.
Reasons to pick Olympus E-M5 over the Pentax 645Z
| E-M5 | 645Z | |||
|---|---|---|---|---|
| Touch friendly screen |  | Quickly navigate |
Reasons to pick Pentax 645Z over the Olympus E-M5
| 645Z | E-M5 | |||
|---|---|---|---|---|
| Revealed | April 2014 |  | April 2012 | More recent by 23 months |
| Screen dimensions | 3.2" |  | 3" | Bigger screen (+0.2") |
| Screen resolution | 1037k |  | 610k | Sharper screen (+427k dot) |
Common features in the Olympus E-M5 and Pentax 645Z
| E-M5 | 645Z | |||
|---|---|---|---|---|
| Focus manually |  | Dial exact focusing | ||
| Screen type | Tilting |  | Tilting | Tilting screen |
| Selfie screen |  | Lacking selfie screen |
Olympus E-M5 vs Pentax 645Z Physical Comparison
For anyone who is looking to lug around your camera regularly, you're going to have to think about its weight and size. The Olympus E-M5 has external measurements of 122mm x 89mm x 43mm (4.8" x 3.5" x 1.7") accompanied by a weight of 425 grams (0.94 lbs) and the Pentax 645Z has specifications of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") along with a weight of 1550 grams (3.42 lbs).
Check the Olympus E-M5 versus Pentax 645Z in our completely new Camera & Lens Size Comparison Tool.
Do not forget, the weight of an ILC will differ depending on the lens you choose at that moment. Following is a front view scale comparison of the E-M5 versus the 645Z.
Looking at size and weight, the portability grade of the E-M5 and 645Z is 81 and 49 respectively.
Olympus E-M5 vs Pentax 645Z Sensor Comparison
Generally, its tough to see the gap between sensor measurements just by reading specs. The visual underneath may offer you a greater sense of the sensor sizing in the E-M5 and 645Z.
As you can plainly see, the 2 cameras provide different megapixels and different sensor measurements. The E-M5 due to its tinier sensor will make getting shallow depth of field tougher and the Pentax 645Z will offer more detail having its extra 35MP. Higher resolution will help you crop photographs more aggressively. The older E-M5 is going to be behind when it comes to sensor tech.
Olympus E-M5 vs Pentax 645Z Screen and ViewFinder
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Olympus E-M5 vs Pentax 645Z Specifications
| Olympus OM-D E-M5 | Pentax 645Z | |
|---|---|---|
| General Information | ||
| Make | Olympus | Pentax |
| Model type | Olympus OM-D E-M5 | Pentax 645Z |
| Class | Advanced Mirrorless | Pro DSLR |
| Launched | 2012-04-30 | 2014-04-15 |
| Body design | SLR-style mirrorless | Large SLR |
| Sensor Information | ||
| Processor Chip | TruePic VI | PRIME III |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | Medium format |
| Sensor dimensions | 17.3 x 13mm | 44 x 33mm |
| Sensor area | 224.9mm² | 1,452.0mm² |
| Sensor resolution | 16 megapixels | 51 megapixels |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 4:3 |
| Highest resolution | 4608 x 3456 | 8256 x 6192 |
| Highest native ISO | 25600 | 204800 |
| Minimum native ISO | 200 | 100 |
| RAW pictures | ||
| Minimum boosted ISO | 100 | - |
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Autofocus tracking | ||
| Autofocus selectice | ||
| Autofocus center weighted | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | 35 | 27 |
| Lens | ||
| Lens mount type | Micro Four Thirds | Pentax 645AF2 |
| Total lenses | 107 | 6 |
| Crop factor | 2.1 | 0.8 |
| Screen | ||
| Range of display | Tilting | Tilting |
| Display diagonal | 3 inches | 3.2 inches |
| Resolution of display | 610 thousand dot | 1,037 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Display technology | Touch control in electrostatic capacitance type OLED monitor | - |
| Viewfinder Information | ||
| Viewfinder type | Electronic | Optical (pentaprism) |
| Viewfinder resolution | 1,440 thousand dot | - |
| Viewfinder coverage | 100% | 98% |
| Viewfinder magnification | 0.58x | 0.85x |
| Features | ||
| Slowest shutter speed | 60 secs | 30 secs |
| Maximum shutter speed | 1/4000 secs | 1/4000 secs |
| Continuous shooting speed | 9.0 frames/s | 3.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash options | Auto, On, Off, Red-Eye, Fill-in, Slow Sync (2), Manual (3 levels) | 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 |
| External flash | ||
| AE bracketing | ||
| WB bracketing | ||
| Maximum flash sync | 1/250 secs | 1/125 secs |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) |
| Highest video resolution | 1920x1080 | 1920x1080 |
| Video file format | H.264, Motion JPEG | MPEG-4, H.264 |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 3.0 (5 GBit/sec) |
| GPS | None | Optional |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 425 grams (0.94 lb) | 1550 grams (3.42 lb) |
| Physical dimensions | 122 x 89 x 43mm (4.8" x 3.5" x 1.7") | 156 x 117 x 123mm (6.1" x 4.6" x 4.8") |
| DXO scores | ||
| DXO All around rating | 71 | 101 |
| DXO Color Depth rating | 22.8 | 26.0 |
| DXO Dynamic range rating | 12.3 | 14.7 |
| DXO Low light rating | 826 | 4505 |
| Other | ||
| Battery life | 360 shots | 650 shots |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | BLN-1 | D-LI90 |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 secs) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC | Dual SD/SDHC/SDXC slots |
| Storage slots | 1 | Dual |
| Retail price | $799 | $5,024 |