Contax N Digital vs Pentax 645D
The Contax N Digital and the Pentax 645D are two professional cameras that were officially introduced, respectively, in February 2002 and March 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (N Digital) and a medium format (645D) sensor. The Contax has a resolution of 6.1 megapixels, whereas the Pentax provides 39.5 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Contax N Digital and the Pentax 645D? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
The physical size and weight of the Contax N Digital and the Pentax 645D are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is notably smaller (13 percent) than the Contax N Digital. However, the 645D is substantially heavier (49 percent) than the N Digital. It is noteworthy in this context that the 645D is splash and dust-proof, while the N Digital does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
As can be seen in the images above, the N Digital has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Contax N Digital | 152 mm | 138 mm | 80 mm | 990 g | 100 | n | Feb 2002 | 7,399 | ebay.com | |
2. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
3. | Canon 1D Mark IV | 156 mm | 157 mm | 80 mm | 1230 g | 1500 | Y | Oct 2009 | 4,999 | ebay.com | |
4. | Canon 1D X | 158 mm | 168 mm | 83 mm | 1551 g | 1120 | Y | Oct 2011 | 6,799 | ebay.com | |
5. | Canon 10D | 150 mm | 107 mm | 75 mm | 850 g | 500 | n | Feb 2003 | 1,999 | ebay.com | |
6. | Canon 300D | 142 mm | 99 mm | 72 mm | 649 g | 400 | n | Aug 2003 | 899 | ebay.com | |
7. | Canon D60 | 150 mm | 107 mm | 75 mm | 855 g | 620 | n | Feb 2002 | 2,999 | ebay.com | |
8. | Canon XC10 | 125 mm | 102 mm | 122 mm | 1040 g | 370 | n | Apr 2015 | 2,499 | ebay.com | |
9. | Leica M9 | 139 mm | 80 mm | 37 mm | 585 g | 550 | n | Sep 2009 | 7,999 | ebay.com | |
10. | Leica M10 | 139 mm | 80 mm | 39 mm | 660 g | 210 | Y | Jan 2017 | 6,595 | ebay.com | |
11. | Leica S Typ 006 | 160 mm | 120 mm | 80 mm | 1260 g | .. | Y | Sep 2012 | 21,950 | ebay.com | |
12. | Leica SL | 147 mm | 104 mm | 39 mm | 847 g | 400 | Y | Oct 2015 | 7,450 | ebay.com | |
13. | Nikon D1X | 157 mm | 153 mm | 85 mm | 1100 g | 1200 | Y | Feb 2001 | 5,999 | ebay.com | |
14. | Nikon D3S | 160 mm | 157 mm | 88 mm | 1240 g | 4200 | Y | Oct 2009 | 5,199 | ebay.com | |
15. | Nikon D100 | 144 mm | 116 mm | 81 mm | 780 g | 370 | n | Feb 2002 | 1,999 | ebay.com | |
16. | Panasonic FZ1000 | 137 mm | 99 mm | 131 mm | 831 g | 360 | n | Jun 2014 | 899 | ebay.com | |
17. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The N Digital was launched at a markedly lower price (by 26 percent) than the 645D, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Contax N Digital features a full frame sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 68 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 0.79. The sensor in the N Digital has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.
With 39.5MP, the 645D offers a higher resolution than the N Digital (6.1MP), but the 645D has smaller individual pixels (pixel pitch of 6.06μm versus 11.90μm for the N Digital). Yet, the 645D is a much more recent model (by 8 years) than the N Digital, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the 645D has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Contax N Digital are 15.2 x 10 inches or 38.6 x 25.5 cm for good quality, 12.2 x 8 inches or 30.9 x 20.4 cm for very good quality, and 10.1 x 6.7 inches or 25.7 x 17 cm for excellent quality prints.
The Contax N Digital has a native sensitivity range from ISO 50 to ISO 1600. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).
Technology-wise, both cameras are equipped with CCD (Charged Coupled Device) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Contax N Digital | Full Frame | 6.1 | 3040 | 2008 | none | 21.5 | 10.5 | 1283 | 59 | |
2. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
3. | Canon 1D Mark IV | APS-H | 16.0 | 4896 | 3264 | 1080/30p | 22.8 | 12.0 | 1320 | 74 | |
4. | Canon 1D X | Full Frame | 17.9 | 5184 | 3456 | 1080/30p | 23.8 | 11.8 | 2786 | 82 | |
5. | Canon 10D | APS-C | 6.3 | 3072 | 2048 | none | 21.1 | 10.9 | 571 | 57 | |
6. | Canon 300D | APS-C | 6.3 | 3072 | 2048 | none | 21.0 | 10.8 | 544 | 55 | |
7. | Canon D60 | APS-C | 6.3 | 3072 | 2048 | none | 20.3 | 9.8 | 301 | 47 | |
8. | Canon XC10 | 1-inch | 12.0 | 4000 | 3000 | 4K/30p | 21.7 | 11.8 | 197 | 61 | |
9. | Leica M9 | Full Frame | 18.1 | 5212 | 3472 | none | 22.5 | 11.7 | 884 | 69 | |
10. | Leica M10 | Full Frame | 23.8 | 5952 | 3992 | none | 24.4 | 13.2 | 2133 | 86 | |
11. | Leica S Typ 006 | Medium Format | 37.5 | 7500 | 5000 | none | 23.9 | 12.2 | 824 | 76 | |
12. | Leica SL | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 13.4 | 1821 | 88 | |
13. | Nikon D1X | APS-C | 5.9 | 3008 | 1960 | none | .. | .. | .. | .. | |
14. | Nikon D3S | Full Frame | 12.1 | 4256 | 2832 | 720/24p | 23.5 | 12.0 | 3253 | 82 | |
15. | Nikon D100 | APS-C | 6.0 | 3008 | 2000 | none | 20.4 | 9.9 | 394 | 48 | |
16. | Panasonic FZ1000 | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.1 | 11.7 | 517 | 64 | |
17. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. The N Digital and the 645D are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinder in the 645D offers a wider field of view (98%) than the one in the N Digital (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645D has a higher magnification (0.78x vs 0.73x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Contax N Digital, the Pentax 645D, and comparable cameras.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Contax N Digital | optical | Y | 2.0 / 200 | fixed | n | 1/8000s | 4.0/s | n | n | |
2. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
3. | Canon 1D Mark IV | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 10.0/s | n | n | |
4. | Canon 1D X | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
5. | Canon 10D | optical | Y | 1.8 / 118 | fixed | n | 1/4000s | 3.0/s | Y | n | |
6. | Canon 300D | optical | n | 1.8 / 118 | fixed | n | 1/4000s | 2.5/s | Y | n | |
7. | Canon D60 | optical | Y | 1.8 / 114 | fixed | n | 1/4000s | 3.0/s | Y | n | |
8. | Canon XC10 | none | n | 3.0 / 1030 | tilting | Y | 1/2000s | 3.8/s | n | Y | |
9. | Leica M9 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 2.0/s | n | n | |
10. | Leica M10 | optical | n | 3.0 / 1037 | fixed | n | 1/4000s | 5.0/s | n | n | |
11. | Leica S Typ 006 | optical | Y | 3.0 / 922 | fixed | n | 1/4000s | 1.5/s | n | n | |
12. | Leica SL | 4400 | Y | 3.0 / 1040 | fixed | Y | 1/8000s | 11.0/s | n | n | |
13. | Nikon D1X | optical | Y | 2.0 / 120 | fixed | n | 1/16000s | 3.0/s | n | n | |
14. | Nikon D3S | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
15. | Nikon D100 | optical | Y | 1.8 / 118 | fixed | n | 1/4000s | 3.0/s | Y | n | |
16. | Panasonic FZ1000 | 2359 | n | 3.0 / 921 | swivel | n | 1/4000s | 12.0/s | Y | Y | |
17. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
The Pentax 645D has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The N Digital writes its imaging data to Compact Flash cards, while the 645D uses SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the N Digital only has one slot.
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Contax N Digital and Pentax 645D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Contax N Digital | Y | - / - | - | - | - | FW | - | - | - | |
2. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
3. | Canon 1D Mark IV | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
4. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 10D | Y | - / - | - | - | - | 1.1 | - | - | - | |
6. | Canon 300D | Y | - / - | - | - | - | 1.1 | - | - | - | |
7. | Canon D60 | Y | - / - | - | - | - | 1.1 | - | - | - | |
8. | Canon XC10 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
9. | Leica M9 | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Leica M10 | Y | - / - | - | - | - | - | Y | - | - | |
11. | Leica S Typ 006 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
12. | Leica SL | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | - | |
13. | Nikon D1X | Y | - / - | - | - | - | FW | - | - | - | |
14. | Nikon D3S | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
15. | Nikon D100 | Y | - / - | - | - | - | 1.1 | - | - | - | |
16. | Panasonic FZ1000 | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
17. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - |
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the N Digital and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the N Digital does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Contax and Pentax websites.
Review summary
So what is the bottom line? Is there a clear favorite between the Contax N Digital and the Pentax 645D? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Contax N Digital:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (4 vs 1.1 flaps/sec) to capture the decisive moment.
- Less heavy: Is lighter (by 490g or 33 percent) and hence easier to carry around.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- More affordable: Was introduced into a lower priced category (26 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2002).
Arguments in favor of the Pentax 645D:
- More detail: Has more megapixels (39.5 vs 6.1MP), which boosts linear resolution by 149%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.73x).
- Larger screen: Has a bigger rear LCD (3.0" vs 2.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (921k vs 200k dots).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (156x117mm vs 152x138mm) and will fit more readily into a bag.
- Longer lasting: Gets more shots (800 versus 100) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 8 years of technical progress since the N Digital launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 645D is the clear winner of the contest (16 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Contax N Digital and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the N Digital and the 645D in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
Expert reviews
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Contax N Digital | .. | .. | .. | .. | .. | .. | Feb 2002 | 7,399 | ebay.com | |
2. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
3. | Canon 1D Mark IV | 5/5 | .. | .. | 89/100 | .. | .. | Oct 2009 | 4,999 | ebay.com | |
4. | Canon 1D X | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Oct 2011 | 6,799 | ebay.com | |
5. | Canon 10D | .. | .. | .. | + + | .. | .. | Feb 2003 | 1,999 | ebay.com | |
6. | Canon 300D | .. | .. | .. | + + | .. | .. | Aug 2003 | 899 | ebay.com | |
7. | Canon D60 | .. | .. | .. | + + | o | .. | Feb 2002 | 2,999 | ebay.com | |
8. | Canon XC10 | .. | .. | .. | 80/100 | .. | .. | Apr 2015 | 2,499 | ebay.com | |
9. | Leica M9 | .. | .. | .. | .. | 4.5/5 | .. | Sep 2009 | 7,999 | ebay.com | |
10. | Leica M10 | 4.5/5 | .. | .. | .. | 4/5 | 4.5/5 | Jan 2017 | 6,595 | ebay.com | |
11. | Leica S Typ 006 | .. | .. | .. | .. | .. | .. | Sep 2012 | 21,950 | ebay.com | |
12. | Leica SL | 4/5 | .. | 4/5 | 84/100 | 4.5/5 | 4/5 | Oct 2015 | 7,450 | ebay.com | |
13. | Nikon D1X | .. | .. | .. | + + | .. | .. | Feb 2001 | 5,999 | ebay.com | |
14. | Nikon D3S | 5/5 | .. | .. | 89/100 | 4.5/5 | 5/5 | Oct 2009 | 5,199 | ebay.com | |
15. | Nikon D100 | .. | .. | .. | + + | o | .. | Feb 2002 | 1,999 | ebay.com | |
16. | Panasonic FZ1000 | 4/5 | + + | .. | 82/100 | 4.5/5 | 4.5/5 | Jun 2014 | 899 | ebay.com | |
17. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon R vs Pentax 645D
- Contax N Digital vs Fujifilm X-E2S
- Contax N Digital vs Fujifilm X70
- Contax N Digital vs Leica S3
- Contax N Digital vs Nikon 1 J5
- Contax N Digital vs Panasonic FZ100
- Contax N Digital vs Panasonic FZ2000
- Fujifilm X-T100 vs Pentax 645D
- Fujifilm X-T20 vs Pentax 645D
- Leica TL2 vs Pentax 645D
- Nikon D7500 vs Pentax 645D
- Pentax 645D vs Sony A850
Specifications: Contax N Digital vs Pentax 645D
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Contax N Digital | Pentax 645D |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Contax N mount lenses | Pentax 645 mount lenses |
Launch Date | February 2002 | March 2010 |
Launch Price | USD 7,399 | USD 9,995 |
Sensor Specs | Contax N Digital | Pentax 645D |
Sensor Technology | CCD | CCD |
Sensor Format | Full Frame Sensor | Medium Format Sensor |
Sensor Size | 36.0 x 24.0 mm | 44.0 x 33.0 mm |
Sensor Area | 864 mm2 | 1452 mm2 |
Sensor Diagonal | 43.3 mm | 55 mm |
Crop Factor | 1.0x | 0.79x |
Sensor Resolution | 6.1 Megapixels | 39.5 Megapixels |
Image Resolution | 3040 x 2008 pixels | 7264 x 5440 pixels |
Pixel Pitch | 11.90 μm | 6.06 μm |
Pixel Density | 0.71 MP/cm2 | 2.72 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | no Video |
ISO Setting | 50 - 1,600 ISO | 100 - 1,600 ISO |
DXO Sensor Quality (score) | .. | 82 |
DXO Color Depth (bits) | .. | 24.6 |
DXO Dynamic Range (EV) | .. | 12.6 |
DXO Low Light (ISO) | .. | 1262 |
Screen Specs | Contax N Digital | Pentax 645D |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 95% | 98% |
Viewfinder Magnification | 0.73x | 0.78x |
Top-Level Screen | Control Panel | Control Panel |
Rear LCD Size | 2.0inch | 3.0inch |
LCD Resolution | 200k dots | 921k dots |
LCD Attachment | Fixed screen | Fixed screen |
Shooting Specs | Contax N Digital | Pentax 645D |
Focus System | Phase-detect AF | Phase-detect AF |
Continuous Shooting | 4 shutter flaps/s | 1.1 shutter flaps/s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | CF cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
Connectivity Specs | Contax N Digital | Pentax 645D |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | Firewire | USB 2.0 |
HDMI Port | no HDMI | no HDMI |
Wifi Support | no Wifi | no Wifi |
Body Specs | Contax N Digital | Pentax 645D |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Contax 4xAA | Pentax D-LI90 |
Battery Life (CIPA) | 100 shots per charge | 800 shots per charge |
Body Dimensions |
152 x 138 x 80 mm (6.0 x 5.4 x 3.1 in) |
156 x 117 x 119 mm (6.1 x 4.6 x 4.7 in) |
Camera Weight | 990 g (34.9 oz) | 1480 g (52.2 oz) |
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