Olympus E-P3 vs Pentax 645D
86 Imaging
48 Features
60 Overall
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50 Imaging
76 Features
52 Overall
66
Olympus E-P3 vs Pentax 645D Key Specs
(Full Review)
- 12MP - Four Thirds Sensor
- 3" Fixed Display
- ISO 100 - 12800
- Sensor based Image Stabilization
- 1920 x 1080 video
- Micro Four Thirds Mount
- 369g - 122 x 69 x 34mm
- Introduced August 2011
- Replaced the Olympus E-P2
- Successor is Olympus E-P5
(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
- Announced March 2010
- Renewed by Pentax 645Z
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Below is a detailed analysis of the Olympus E-P3 vs Pentax 645D, former being a Entry-Level Mirrorless while the other is a Pro DSLR by rivals Olympus and Pentax. There exists a sizable gap among the sensor resolutions of the E-P3 (12MP) and 645D (40MP) and the E-P3 (Four Thirds) and 645D (Medium format) offer different sensor measurements.
Meta to Introduce 'AI-Generated' Labels for Media starting next monthThe E-P3 was unveiled 18 months later than the 645D making them a generation apart from one another. Each of the cameras have different body design with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Pentax 645D being a Large SLR camera.
Before going into a in depth comparison, here is a short introduction of how the E-P3 grades versus the 645D when considering portability, imaging, features and an overall grade.
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Following is a sample of the gallery pics for Olympus PEN E-P3 & Pentax 645D. The full galleries are provided at Olympus E-P3 Gallery & Pentax 645D Gallery.
Reasons to pick Olympus E-P3 over the Pentax 645D
| E-P3 | 645D | |||
|---|---|---|---|---|
| Announced | August 2011 |  | March 2010 | More recent by 18 months |
| Touch friendly display |  | Easily navigate |
Reasons to pick Pentax 645D over the Olympus E-P3
| 645D | E-P3 | |||
|---|---|---|---|---|
| Display resolution | 921k |  | 614k | Crisper display (+307k dot) |
Common features in the Olympus E-P3 and Pentax 645D
| E-P3 | 645D | |||
|---|---|---|---|---|
| Manually focus |  | Dial precise focus | ||
| Display type | Fixed |  | Fixed | Fixed display |
| Display dimensions | 3" |  | 3" | Equal display measurements |
| Selfie screen |  | Missing selfie screen |
Olympus E-P3 vs Pentax 645D Physical Comparison
When you are planning to lug around your camera frequently, you will want to factor its weight and volume. The Olympus E-P3 has got exterior dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") along with a weight of 369 grams (0.81 lbs) while the Pentax 645D has sizing of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).
Examine the Olympus E-P3 vs Pentax 645D in our completely new Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will differ dependant on the lens you have attached at that moment. The following is a front view dimensions comparison of the E-P3 compared to the 645D.
Considering dimensions and weight, the portability rating of the E-P3 and 645D is 86 and 50 respectively.
Olympus E-P3 vs Pentax 645D Sensor Comparison
Sometimes, it's hard to visualize the contrast in sensor measurements purely by checking out specs. The graphic here should give you a more clear sense of the sensor sizes in the E-P3 and 645D.
All in all, each of these cameras provide different megapixel count and different sensor measurements. The E-P3 using its smaller sensor is going to make achieving shallow DOF more challenging and the Pentax 645D will provide greater detail having an extra 28MP. Greater resolution can also help you crop pics more aggressively. The younger E-P3 provides a benefit with regard to sensor innovation.
Olympus E-P3 vs Pentax 645D Screen and ViewFinder
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Olympus E-P3 vs Pentax 645D Specifications
| Olympus PEN E-P3 | Pentax 645D | |
|---|---|---|
| General Information | ||
| Manufacturer | Olympus | Pentax |
| Model type | Olympus PEN E-P3 | Pentax 645D |
| Type | Entry-Level Mirrorless | Pro DSLR |
| Introduced | 2011-08-17 | 2010-03-10 |
| Body design | Rangefinder-style mirrorless | Large SLR |
| Sensor Information | ||
| Processor Chip | TruePic VI | Prime II |
| Sensor type | CMOS | CCD |
| Sensor size | Four Thirds | Medium format |
| Sensor dimensions | 17.3 x 13mm | 44 x 33mm |
| Sensor surface area | 224.9mm² | 1,452.0mm² |
| Sensor resolution | 12MP | 40MP |
| Anti alias filter | ||
| Aspect ratio | 4:3 | 4:3 |
| Highest resolution | 4032 x 3024 | 7264 x 5440 |
| Highest native ISO | 12800 | 1600 |
| Lowest native ISO | 100 | 200 |
| RAW images | ||
| Lowest boosted ISO | - | 100 |
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| Continuous AF | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 35 | 11 |
| Lens | ||
| Lens support | Micro Four Thirds | Pentax 645AF2 |
| Total lenses | 107 | 6 |
| Crop factor | 2.1 | 0.8 |
| Screen | ||
| Range of display | Fixed Type | Fixed Type |
| Display diagonal | 3" | 3" |
| Resolution of display | 614 thousand dot | 921 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Display technology | 3:2 OLED with Anti-Fingerprint Coating | TFT Color LCD with wide-viewing angle and with AR coating |
| Viewfinder Information | ||
| Viewfinder type | Electronic (optional) | Optical (pentaprism) |
| Viewfinder coverage | - | 98% |
| Viewfinder magnification | - | 0.85x |
| Features | ||
| Slowest shutter speed | 60 secs | 30 secs |
| Maximum shutter speed | 1/4000 secs | 1/4000 secs |
| Continuous shooting speed | 3.0 frames per second | 1.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 10.00 m (@ ISO 200) | no built-in flash |
| Flash settings | Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Wireless, Manual (3 levels) | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain |
| Hot shoe | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Maximum flash sync | 1/180 secs | 1/125 secs |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) | - |
| Highest video resolution | 1920x1080 | None |
| Video file format | AVCHD, Motion JPEG | - |
| Mic input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 369g (0.81 lb) | 1480g (3.26 lb) |
| Physical dimensions | 122 x 69 x 34mm (4.8" x 2.7" x 1.3") | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") |
| DXO scores | ||
| DXO All around rating | 51 | 82 |
| DXO Color Depth rating | 20.8 | 24.6 |
| DXO Dynamic range rating | 10.1 | 12.6 |
| DXO Low light rating | 536 | 1262 |
| Other | ||
| Battery life | 330 pictures | 800 pictures |
| Battery format | Battery Pack | Battery Pack |
| Battery ID | BLS-5 | D-LI90 |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | SD/SDHC/SDXC card | SD/SDHC |
| Storage slots | Single | Dual |
| Pricing at launch | $0 | $4,000 |