Olympus E-3 vs Pentax 645D
56 Imaging
44 Features
56 Overall
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50 Imaging
76 Features
52 Overall
66
Olympus E-3 vs Pentax 645D Key Specs
(Full Review)
- 10MP - Four Thirds Sensor
- 2.5" Fully Articulated Display
- ISO 100 - 3200
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- No Video
- Micro Four Thirds Mount
- 890g - 142 x 116 x 75mm
- Released February 2008
- Old Model is Olympus E-1
- Renewed by Olympus E-5
(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
- New Model is Pentax 645Z
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In this article, we will be evaluating the Olympus E-3 vs Pentax 645D, one being a Advanced DSLR and the latter is a Pro DSLR by rivals Olympus and Pentax. There is a significant difference among the image resolutions of the E-3 (10MP) and 645D (40MP) and the E-3 (Four Thirds) and 645D (Medium format) come with totally different sensor sizes.
Sora from OpenAI releases its first ever music videoThe E-3 was introduced 24 months earlier than the 645D which makes the cameras a generation apart from each other. The two cameras offer different body type with the Olympus E-3 being a Mid-size SLR camera and the Pentax 645D being a Large SLR camera.
Before diving in to a in depth comparison, below is a quick summation of how the E-3 matches up against the 645D when considering portability, imaging, features and an overall grade.
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The following is a preview of the gallery photos for Olympus E-3 and Pentax 645D. The whole galleries are available at Olympus E-3 Gallery and Pentax 645D Gallery.
Reasons to pick Olympus E-3 over the Pentax 645D
| E-3 | 645D | |||
|---|---|---|---|---|
| Screen type | Fully Articulated |  | Fixed | Fully Articulating screen |
| Selfie screen |  | Easy selfies |
Reasons to pick Pentax 645D over the Olympus E-3
| 645D | E-3 | |||
|---|---|---|---|---|
| Launched | March 2010 |  | February 2008 | More recent by 24 months |
| Screen sizing | 3" |  | 2.5" | Bigger screen (+0.5") |
| Screen resolution | 921k |  | 230k | Clearer screen (+691k dot) |
Common features in the Olympus E-3 and Pentax 645D
| E-3 | 645D | |||
|---|---|---|---|---|
| Focus manually |  | More exact focus | ||
| Touch friendly screen |  | Neither includes Touch friendly screen |
Olympus E-3 vs Pentax 645D Physical Comparison
If you are intending to lug around your camera often, you will want to consider its weight and dimensions. The Olympus E-3 features external measurements of 142mm x 116mm x 75mm (5.6" x 4.6" x 3.0") with a weight of 890 grams (1.96 lbs) whilst the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs).
Check out the Olympus E-3 vs Pentax 645D in the latest Camera and Lens Size Comparison Tool.
Take into consideration, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilizing at the time. Following is the front view dimension comparison of the E-3 vs the 645D.
Taking into consideration size and weight, the portability rating of the E-3 and 645D is 56 and 50 respectively.
Olympus E-3 vs Pentax 645D Sensor Comparison
Generally, it is tough to envision the contrast in sensor measurements simply by seeing specs. The graphic underneath will help offer you a greater sense of the sensor sizing in the E-3 and 645D.
All in all, both of the cameras enjoy different resolutions and different sensor measurements. The E-3 having a smaller sensor will make shooting shallow DOF trickier and the Pentax 645D will produce more detail using its extra 30MP. Higher resolution will also enable you to crop shots far more aggressively. The older E-3 will be behind when it comes to sensor tech.
Olympus E-3 vs Pentax 645D Screen and ViewFinder
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Olympus E-3 vs Pentax 645D Specifications
| Olympus E-3 | Pentax 645D | |
|---|---|---|
| General Information | ||
| Company | Olympus | Pentax |
| Model | Olympus E-3 | Pentax 645D |
| Class | Advanced DSLR | Pro DSLR |
| Released | 2008-02-20 | 2010-03-10 |
| Body design | Mid-size SLR | Large SLR |
| Sensor Information | ||
| Processor | TruePic III | Prime II |
| Sensor type | CMOS | CCD |
| Sensor size | Four Thirds | Medium format |
| Sensor dimensions | 17.3 x 13mm | 44 x 33mm |
| Sensor area | 224.9mm² | 1,452.0mm² |
| Sensor resolution | 10 megapixels | 40 megapixels |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 4:3 |
| Peak resolution | 3648 x 2736 | 7264 x 5440 |
| Highest native ISO | 3200 | 1600 |
| Min native ISO | 100 | 200 |
| RAW images | ||
| Min enhanced ISO | - | 100 |
| Autofocusing | ||
| Manual focus | ||
| Autofocus touch | ||
| Autofocus continuous | ||
| Single autofocus | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Autofocus center weighted | ||
| Multi area autofocus | ||
| Autofocus live view | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Number of focus points | 11 | 11 |
| Lens | ||
| Lens mounting type | Micro Four Thirds | Pentax 645AF2 |
| Available lenses | 45 | 6 |
| Focal length multiplier | 2.1 | 0.8 |
| Screen | ||
| Range of display | Fully Articulated | Fixed Type |
| Display diagonal | 2.5" | 3" |
| Display resolution | 230k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Display technology | - | TFT Color LCD with wide-viewing angle and with AR coating |
| Viewfinder Information | ||
| Viewfinder type | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100 percent | 98 percent |
| Viewfinder magnification | 0.58x | 0.85x |
| Features | ||
| Min shutter speed | 60 secs | 30 secs |
| Max shutter speed | 1/8000 secs | 1/4000 secs |
| Continuous shutter speed | 5.0fps | 1.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | 13.00 m | no built-in flash |
| Flash settings | Auto, Auto FP, Manual, Red-Eye | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain |
| Hot shoe | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Max flash sync | 1/250 secs | 1/125 secs |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Highest video resolution | None | None |
| 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 | ||
| Environmental seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 890g (1.96 lb) | 1480g (3.26 lb) |
| Dimensions | 142 x 116 x 75mm (5.6" x 4.6" x 3.0") | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") |
| DXO scores | ||
| DXO Overall score | 56 | 82 |
| DXO Color Depth score | 21.6 | 24.6 |
| DXO Dynamic range score | 10.5 | 12.6 |
| DXO Low light score | 571 | 1262 |
| Other | ||
| Battery life | - | 800 shots |
| Battery format | - | Battery Pack |
| Battery model | - | D-LI90 |
| Self timer | Yes (2 or 12 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Storage media | Compact Flash (Type I or II), xD Picture Card | SD/SDHC |
| Storage slots | One | 2 |
| Pricing at release | $670 | $4,000 |