Canon 1D MIII vs Pentax 645D
51 Imaging
51 Features
54 Overall
52
50 Imaging
76 Features
52 Overall
66
Canon 1D MIII vs Pentax 645D Key Specs
(Full Review)
- 10MP - APS-H Sensor
- 3" Fixed Screen
- ISO 100 - 3200 (Raise to 6400)
- 1/8000s Max Shutter
- No Video
- Canon EF Mount
- 1335g - 156 x 157 x 80mm
- Revealed February 2007
- Superseded the Canon 1D MII N
- Refreshed by Canon 1D MIV
(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
- Announced March 2010
- Renewed by Pentax 645Z
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Lets look much closer at the Canon 1D MIII and Pentax 645D, both Pro DSLR digital cameras by manufacturers Canon and Pentax. There is a considerable difference between the image resolutions of the 1D MIII (10MP) and 645D (40MP) and the 1D MIII (APS-H) and 645D (Medium format) offer totally different sensor size.
Photography GlossaryThe 1D MIII was introduced 4 years before the 645D which is quite a large difference as far as tech is concerned. Both of these cameras have the same body design (Large SLR).
Before getting into a more detailed comparison, here is a brief summation of how the 1D MIII grades vs the 645D with respect to portability, imaging, features and an overall score.
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This is a preview of the gallery photos for Canon EOS-1D Mark III & Pentax 645D. The whole galleries are viewable at Canon 1D MIII Gallery & Pentax 645D Gallery.
Reasons to pick Canon 1D MIII over the Pentax 645D
| 1D MIII | 645D |
|---|
Reasons to pick Pentax 645D over the Canon 1D MIII
| 645D | 1D MIII | |||
|---|---|---|---|---|
| Announced | March 2010 |  | February 2007 | More modern by 37 months |
| Screen resolution | 921k |  | 230k | Sharper screen (+691k dot) |
Common features in the Canon 1D MIII and Pentax 645D
| 1D MIII | 645D | |||
|---|---|---|---|---|
| Focus manually |  | Very accurate focus | ||
| Screen type | Fixed |  | Fixed | Fixed screen |
| Screen dimensions | 3" |  | 3" | Equal screen size |
| Selfie screen |  | Neither has selfie screen | ||
| Touch screen |  | Neither has Touch screen |
Canon 1D MIII vs Pentax 645D Physical Comparison
If you're going to carry around your camera regularly, you have to factor in its weight and volume. The Canon 1D MIII has outer measurements of 156mm x 157mm x 80mm (6.1" x 6.2" x 3.1") accompanied by a weight of 1335 grams (2.94 lbs) whilst the Pentax 645D has sizing of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs).
See the Canon 1D MIII and Pentax 645D in our newest Camera & Lens Size Comparison Tool.
Remember that, the weight of an ILC will differ depending on the lens you have during that time. Below is a front view dimensions comparison of the 1D MIII versus the 645D.
Taking into consideration size and weight, the portability grade of the 1D MIII and 645D is 51 and 50 respectively.
Canon 1D MIII vs Pentax 645D Sensor Comparison
Oftentimes, it is very hard to envision the difference between sensor sizes purely by reading technical specs. The image below will help give you a better sense of the sensor measurements in the 1D MIII and 645D.
As you have seen, both of those cameras have different megapixel count and different sensor sizes. The 1D MIII with its tinier sensor will make shooting shallow depth of field more difficult and the Pentax 645D will deliver extra detail using its extra 30 Megapixels. Higher resolution will also help you crop photographs a bit more aggressively. The more aged 1D MIII is going to be disadvantaged when it comes to sensor innovation.
Canon 1D MIII vs Pentax 645D Screen and ViewFinder
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Canon 1D MIII vs Pentax 645D Specifications
| Canon EOS-1D Mark III | Pentax 645D | |
|---|---|---|
| General Information | ||
| Company | Canon | Pentax |
| Model | Canon EOS-1D Mark III | Pentax 645D |
| Category | Pro DSLR | Pro DSLR |
| Revealed | 2007-02-22 | 2010-03-10 |
| Physical type | Large SLR | Large SLR |
| Sensor Information | ||
| Chip | - | Prime II |
| Sensor type | CMOS | CCD |
| Sensor size | APS-H | Medium format |
| Sensor dimensions | 28.7 x 18.7mm | 44 x 33mm |
| Sensor area | 536.7mm² | 1,452.0mm² |
| Sensor resolution | 10 megapixel | 40 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 4:3 |
| Max resolution | 3888 x 2592 | 7264 x 5440 |
| Max native ISO | 3200 | 1600 |
| Max enhanced ISO | 6400 | - |
| Lowest native ISO | 100 | 200 |
| RAW data | ||
| Lowest enhanced ISO | 50 | 100 |
| Autofocusing | ||
| Manual focus | ||
| AF touch | ||
| Continuous AF | ||
| AF single | ||
| AF tracking | ||
| Selective AF | ||
| AF center weighted | ||
| AF multi area | ||
| AF live view | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 45 | 11 |
| Cross focus points | 19 | - |
| Lens | ||
| Lens mounting type | Canon EF | Pentax 645AF2 |
| Amount of lenses | 250 | 6 |
| Focal length multiplier | 1.3 | 0.8 |
| Screen | ||
| Screen type | Fixed Type | Fixed Type |
| Screen diagonal | 3 inch | 3 inch |
| Resolution of screen | 230 thousand dots | 921 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Screen technology | - | TFT Color LCD with wide-viewing angle and with AR coating |
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100% | 98% |
| Viewfinder magnification | 0.76x | 0.85x |
| Features | ||
| Min shutter speed | 30 secs | 30 secs |
| Max shutter speed | 1/8000 secs | 1/4000 secs |
| Continuous shutter rate | 10.0 frames per sec | 1.0 frames per sec |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | no built-in flash | no built-in flash |
| Flash settings | External | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Max flash synchronize | 1/300 secs | 1/125 secs |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Max video resolution | None | None |
| Mic support | ||
| Headphone support | ||
| 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 sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 1335 grams (2.94 pounds) | 1480 grams (3.26 pounds) |
| Physical dimensions | 156 x 157 x 80mm (6.1" x 6.2" x 3.1") | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") |
| DXO scores | ||
| DXO Overall score | 71 | 82 |
| DXO Color Depth score | 22.7 | 24.6 |
| DXO Dynamic range score | 11.7 | 12.6 |
| DXO Low light score | 1078 | 1262 |
| Other | ||
| Battery life | 2200 pictures | 800 pictures |
| Type of battery | Battery Pack | Battery Pack |
| Battery model | - | D-LI90 |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | Compact Flash (Type I or II), SD/SDHC card | SD/SDHC |
| Card slots | 2 | 2 |
| Launch cost | $4,399 | $4,000 |
