Olympus E-M1X vs Pentax 645Z
54 Imaging
61 Features
93 Overall
73
49 Imaging
80 Features
74 Overall
77
Olympus E-M1X vs Pentax 645Z Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 997g - 144 x 147 x 75mm
- Announced January 2019
- Earlier Model is Olympus E-M1 II
(Full Review)
- 51MP - Medium format Sensor
- 3.2" Tilting Display
- ISO 100 - 204800
- No Anti-Alias Filter
- 1920 x 1080 video
- Pentax 645AF2 Mount
- 1550g - 156 x 117 x 123mm
- Revealed April 2014
- Old Model is Pentax 645D
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Following is a extended analysis of the Olympus E-M1X vs Pentax 645Z, one is a Pro Mirrorless and the other is a Pro DSLR by brands Olympus and Pentax. There is a crucial difference among the sensor resolutions of the E-M1X (20MP) and 645Z (51MP) and the E-M1X (Four Thirds) and 645Z (Medium format) possess totally different sensor measurements.
Photography GlossaryThe E-M1X was announced 4 years after the 645Z which is a fairly serious gap as far as camera tech is concerned. The two cameras offer different body type with the Olympus E-M1X being a SLR-style mirrorless camera and the Pentax 645Z being a Large SLR camera.
Before getting straight into a comprehensive comparison, below is a simple view of how the E-M1X matches up vs the 645Z in terms of portability, imaging, features and an overall score.
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Here is a sample of the gallery pictures for Olympus OM-D E-M1X and Pentax 645Z. The whole galleries are viewable at Olympus E-M1X Gallery and Pentax 645Z Gallery.
Reasons to pick Olympus E-M1X over the Pentax 645Z
| E-M1X | 645Z | |||
|---|---|---|---|---|
| Revealed | January 2019 |  | April 2014 | More modern by 59 months |
| Display type | Fully Articulated |  | Tilting | Fully Articulating display |
| Selfie screen |  | Easy selfies | ||
| Touch display |  | Easily navigate |
Reasons to pick Pentax 645Z over the Olympus E-M1X
| 645Z | E-M1X | |||
|---|---|---|---|---|
| Display sizing | 3.2" |  | 3" | Larger display (+0.2") |
Common features in the Olympus E-M1X and Pentax 645Z
| E-M1X | 645Z | |||
|---|---|---|---|---|
| Manually focus |  | Dial exact focus | ||
| Display resolution | 1037k |  | 1037k | The same display resolution |
Olympus E-M1X vs Pentax 645Z Physical Comparison
If you're intending to carry around your camera often, you'll need to think about its weight and dimensions. The Olympus E-M1X has got external dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") and a weight of 997 grams (2.20 lbs) whilst the Pentax 645Z has dimensions of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") accompanied by a weight of 1550 grams (3.42 lbs).
See the Olympus E-M1X vs Pentax 645Z in the latest Camera with Lens Size Comparison Tool.
Bear in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you have at that time. The following is the front view dimensions comparison of the E-M1X compared to the 645Z.
Factoring in size and weight, the portability score of the E-M1X and 645Z is 54 and 49 respectively.
Olympus E-M1X vs Pentax 645Z Sensor Comparison
In many cases, it is very tough to visualise the contrast in sensor sizes purely by going through technical specs. The image below will offer you a greater sense of the sensor sizes in the E-M1X and 645Z.
As you can tell, both of these cameras offer different resolutions and different sensor sizes. The E-M1X having a smaller sensor will make getting shallow DOF tougher and the Pentax 645Z will show extra detail with its extra 31 Megapixels. Greater resolution can also help you crop photos a little more aggressively. The newer E-M1X will have an edge when it comes to sensor technology.
Olympus E-M1X vs Pentax 645Z Screen and ViewFinder
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Olympus E-M1X vs Pentax 645Z Specifications
| Olympus OM-D E-M1X | Pentax 645Z | |
|---|---|---|
| General Information | ||
| Make | Olympus | Pentax |
| Model type | Olympus OM-D E-M1X | Pentax 645Z |
| Class | Pro Mirrorless | Pro DSLR |
| Announced | 2019-01-24 | 2014-04-15 |
| Body design | SLR-style mirrorless | Large SLR |
| Sensor Information | ||
| Processor | Dual TruePic VIII | PRIME III |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | Medium format |
| Sensor dimensions | 17.4 x 13mm | 44 x 33mm |
| Sensor area | 226.2mm² | 1,452.0mm² |
| Sensor resolution | 20 megapixels | 51 megapixels |
| Anti alias filter | ||
| Aspect ratio | 4:3 | 4:3 |
| Highest resolution | 5184 x 3888 | 8256 x 6192 |
| Highest native ISO | 25600 | 204800 |
| Min native ISO | 200 | 100 |
| RAW photos | ||
| Min boosted ISO | 64 | - |
| Autofocusing | ||
| Manual focusing | ||
| AF touch | ||
| Continuous AF | ||
| Single AF | ||
| Tracking AF | ||
| Selective AF | ||
| Center weighted AF | ||
| AF multi area | ||
| AF live view | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 121 | 27 |
| Lens | ||
| Lens mount type | Micro Four Thirds | Pentax 645AF2 |
| Available lenses | 107 | 6 |
| Crop factor | 2.1 | 0.8 |
| Screen | ||
| Display type | Fully Articulated | Tilting |
| Display size | 3" | 3.2" |
| Display resolution | 1,037k dot | 1,037k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch capability | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Optical (pentaprism) |
| Viewfinder resolution | 2,360k dot | - |
| Viewfinder coverage | 100 percent | 98 percent |
| Viewfinder magnification | 0.74x | 0.85x |
| Features | ||
| Lowest shutter speed | 60 seconds | 30 seconds |
| Highest shutter speed | 1/8000 seconds | 1/4000 seconds |
| Highest quiet shutter speed | 1/32000 seconds | - |
| Continuous shooting speed | 60.0 frames/s | 3.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash options | Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync.(1st curtain), Slow sync (2nd curtain), manual | 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 |
| Hot shoe | ||
| AEB | ||
| White balance bracketing | ||
| Highest flash sync | - | 1/125 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) |
| Highest video resolution | 4096x2160 | 1920x1080 |
| Video data format | MPEG-4, H.264 | MPEG-4, H.264 |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Built-In | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | Yes (USB-PD allows charging by laptop or external power bank) | USB 3.0 (5 GBit/sec) |
| GPS | Built-in | Optional |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 997 gr (2.20 pounds) | 1550 gr (3.42 pounds) |
| Dimensions | 144 x 147 x 75mm (5.7" x 5.8" x 3.0") | 156 x 117 x 123mm (6.1" x 4.6" x 4.8") |
| DXO scores | ||
| DXO All around rating | not tested | 101 |
| DXO Color Depth rating | not tested | 26.0 |
| DXO Dynamic range rating | not tested | 14.7 |
| DXO Low light rating | not tested | 4505 |
| Other | ||
| Battery life | 870 photos | 650 photos |
| Battery form | Built-in | Battery Pack |
| Battery ID | - | D-LI90 |
| Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 10 secs) |
| Time lapse feature | ||
| Storage media | - | Dual SD/SDHC/SDXC slots |
| Storage slots | Two | Two |
| Retail price | $2,999 | $5,024 |