Nikon D3X vs Pentax 645D
51 Imaging
67 Features
65 Overall
66
50 Imaging
76 Features
52 Overall
66
Nikon D3X vs Pentax 645D Key Specs
(Full Review)
- 25MP - Full frame Sensor
- 3" Fixed Display
- ISO 100 - 1600 (Bump to 6400)
- 1/8000s Max Shutter
- No Video
- Nikon F Mount
- 1260g - 160 x 157 x 88mm
- Revealed February 2009
- Previous Model is Nikon D2Xs
(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
- Released March 2010
- Successor is Pentax 645Z
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In this article, we are analyzing the Nikon D3X vs Pentax 645D, both Pro DSLR cameras by brands Nikon and Pentax. There exists a large gap among the resolutions of the D3X (25MP) and 645D (40MP) and the D3X (Full frame) and 645D (Medium format) enjoy different sensor sizes.
Sora from OpenAI releases its first ever music videoThe D3X was manufactured 12 months prior to the 645D which means that they are of a similar age. Both of the cameras offer the identical body type (Large SLR).
Before we go through a more detailed comparison, below is a short view of how the D3X grades against the 645D in the way of portability, imaging, features and an overall score.
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Following is a sample of the gallery pics for Nikon D3X & Pentax 645D. The entire galleries are available at Nikon D3X Gallery & Pentax 645D Gallery.
Reasons to pick Nikon D3X over the Pentax 645D
| D3X | 645D |
|---|
Reasons to pick Pentax 645D over the Nikon D3X
| 645D | D3X | |||
|---|---|---|---|---|
| Released | March 2010 |  | February 2009 | More modern by 12 months |
| Display resolution | 921k |  | 920k | Sharper display (+1k dot) |
Common features in the Nikon D3X and Pentax 645D
| D3X | 645D | |||
|---|---|---|---|---|
| Manually focus |  | Dial exact focusing | ||
| Display type | Fixed |  | Fixed | Fixed display |
| Display sizing | 3" |  | 3" | Equivalent display dimensions |
| Selfie screen |  | No selfie screen | ||
| Touch display |  | No Touch display |
Nikon D3X vs Pentax 645D Physical Comparison
If you're going to carry around your camera, you will have to take into account its weight and dimensions. The Nikon D3X has exterior measurements of 160mm x 157mm x 88mm (6.3" x 6.2" x 3.5") with a weight of 1260 grams (2.78 lbs) and the Pentax 645D has dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs).
Look at the Nikon D3X vs Pentax 645D in our brand new Camera plus Lens Size Comparison Tool.
Always remember, the weight of an ILC will differ dependant on the lens you are working with at that moment. Below is the front view over all size comparison of the D3X versus the 645D.
Looking at dimensions and weight, the portability score of the D3X and 645D is 51 and 50 respectively.
Nikon D3X vs Pentax 645D Sensor Comparison
Quite often, it can be hard to picture the contrast in sensor sizes simply by researching technical specs. The image underneath will give you a stronger sense of the sensor sizing in the D3X and 645D.
As you can tell, the two cameras enjoy different resolutions and different sensor sizes. The D3X because of its smaller sensor is going to make achieving shallow depth of field more challenging and the Pentax 645D will render more detail due to its extra 15MP. Greater resolution can also help you crop images far more aggressively. The more aged D3X will be behind with regard to sensor tech.
Nikon D3X vs Pentax 645D Screen and ViewFinder
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Nikon D3X vs Pentax 645D Specifications
| Nikon D3X | Pentax 645D | |
|---|---|---|
| General Information | ||
| Manufacturer | Nikon | Pentax |
| Model | Nikon D3X | Pentax 645D |
| Type | Pro DSLR | Pro DSLR |
| Revealed | 2009-02-19 | 2010-03-10 |
| Body design | Large SLR | Large SLR |
| Sensor Information | ||
| Chip | Expeed | Prime II |
| Sensor type | CMOS | CCD |
| Sensor size | Full frame | Medium format |
| Sensor dimensions | 35.9 x 24mm | 44 x 33mm |
| Sensor surface area | 861.6mm² | 1,452.0mm² |
| Sensor resolution | 25 megapixel | 40 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 4:3 |
| Max resolution | 6048 x 4032 | 7264 x 5440 |
| Max native ISO | 1600 | 1600 |
| Max enhanced ISO | 6400 | - |
| Min native ISO | 100 | 200 |
| RAW pictures | ||
| Min enhanced ISO | 50 | 100 |
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detect focusing | ||
| Contract detect focusing | ||
| Phase detect focusing | ||
| Number of focus points | 51 | 11 |
| Lens | ||
| Lens mount | Nikon F | Pentax 645AF2 |
| Amount of lenses | 309 | 6 |
| Crop factor | 1 | 0.8 |
| Screen | ||
| Display type | Fixed Type | Fixed Type |
| Display diagonal | 3 inches | 3 inches |
| Resolution of display | 920k dot | 921k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Display technology | Super Density TFT color LCD with wide-viewing angle | TFT Color LCD with wide-viewing angle and with AR coating |
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100 percent | 98 percent |
| Viewfinder magnification | 0.7x | 0.85x |
| Features | ||
| Min shutter speed | 30 seconds | 30 seconds |
| Max shutter speed | 1/8000 seconds | 1/4000 seconds |
| Continuous shutter speed | 5.0fps | 1.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash range | no built-in flash | no built-in flash |
| Flash modes | Auto, On, Off, Red-eye, Slow sync, Rear curtain | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain |
| Hot shoe | ||
| AE bracketing | ||
| WB bracketing | ||
| Max flash sync | 1/250 seconds | 1/125 seconds |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Max 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 | Optional | None |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 1260g (2.78 pounds) | 1480g (3.26 pounds) |
| Dimensions | 160 x 157 x 88mm (6.3" x 6.2" x 3.5") | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") |
| DXO scores | ||
| DXO Overall score | 88 | 82 |
| DXO Color Depth score | 24.7 | 24.6 |
| DXO Dynamic range score | 13.7 | 12.6 |
| DXO Low light score | 1992 | 1262 |
| Other | ||
| Battery life | 4400 photos | 800 photos |
| Battery format | Battery Pack | Battery Pack |
| Battery model | EN-EL4a | D-LI90 |
| Self timer | Yes (2 to 20 sec, custom) | Yes (2 or 10 sec) |
| Time lapse shooting | ||
| Storage media | Compact Flash (Type I or II) x 2, UDMA | SD/SDHC |
| Storage slots | Dual | Dual |
| Pricing at release | $3,000 | $4,000 |