Pentax 645D vs Nikon D5
The Pentax 645D and the Nikon D5 are two professional cameras that were revealed to the public, respectively, in March 2010 and January 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a medium format (645D) and a full frame (D5) sensor. The Pentax has a resolution of 39.5 megapixels, whereas the Nikon provides 20.7 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 Pentax 645D and the Nikon D5? 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
An illustration of the physical size and weight of the Pentax 645D and the Nikon D5 is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures 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 Nikon D5 is notably larger (39 percent) than the Pentax 645D. However, the D5 is slightly lighter (4 percent) than the 645D. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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.
Concerning battery life, the 645D gets 800 shots out of its Pentax D-LI90 battery, while the D5 can take 3780 images on a single charge of its Nikon EN-EL18a power pack. As can be seen in the images above, the D5 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. 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. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
2. | Nikon D5 | 160 mm | 159 mm | 92 mm | 1415 g | 3780 | Y | Jan 2016 | 6,499 | 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 1D X Mark II | 158 mm | 168 mm | 83 mm | 1530 g | 1210 | Y | Feb 2016 | 5,999 | ebay.com | |
6. | Leica S Typ 006 | 160 mm | 120 mm | 80 mm | 1260 g | .. | Y | Sep 2012 | 21,950 | ebay.com | |
7. | Nikon D3S | 160 mm | 157 mm | 88 mm | 1240 g | 4200 | Y | Oct 2009 | 5,199 | ebay.com | |
8. | Nikon D4S | 160 mm | 157 mm | 91 mm | 1350 g | 3020 | Y | Feb 2014 | 6,499 | ebay.com | |
9. | Nikon D6 | 160 mm | 163 mm | 92 mm | 1270 g | 3580 | Y | Feb 2020 | 6,499 | amazon.com | |
10. | Nikon D610 | 141 mm | 113 mm | 82 mm | 850 g | 900 | Y | Oct 2013 | 1,999 | ebay.com | |
11. | Nikon D750 | 141 mm | 113 mm | 78 mm | 750 g | 1230 | Y | Sep 2014 | 2,299 | ebay.com | |
12. | Nikon D810 | 146 mm | 123 mm | 82 mm | 980 g | 1200 | Y | Jun 2014 | 3,299 | ebay.com | |
13. | Nikon D850 | 146 mm | 124 mm | 79 mm | 1005 g | 1840 | Y | Jul 2017 | 3,299 | amazon.com | |
14. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
15. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | 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 D5 was launched at a markedly lower price (by 35 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.
Sensor comparison
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Pentax 645D features a medium format sensor and the Nikon D5 a full frame sensor. The sensor area in the D5 is 41 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.0. The sensor in the 645D has a native 4:3 aspect ratio, while the one in the D5 offers a 3:2 aspect.
With 39.5MP, the 645D offers a higher resolution than the D5 (20.7MP), but the 645D has smaller individual pixels (pixel pitch of 6.06μm versus 6.44μm for the D5). Moreover, the D5 is a much more recent model (by 5 years and 9 months) than the 645D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. 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 Nikon D5 are 27.9 x 18.6 inches or 71 x 47.1 cm for good quality, 22.4 x 14.8 inches or 56.8 x 37.7 cm for very good quality, and 18.6 x 12.4 inches or 47.3 x 31.4 cm for excellent quality prints.
The Pentax 645D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Nikon D5 are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-3280000.
In terms of underlying technology, the 645D is build around a CCD sensor, while the D5 uses a CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the D5 has a markedly higher DXO score than the 645D (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.5 bits higher color depth, 0.3 EV of lower dynamic range, and 0.9 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
2. | Nikon D5 | Full Frame | 20.7 | 5588 | 3712 | 4K/30p | 25.1 | 12.3 | 2343 | 88 | |
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 1D X Mark II | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.1 | 13.5 | 3207 | 88 | |
6. | Leica S Typ 006 | Medium Format | 37.5 | 7500 | 5000 | none | 23.9 | 12.2 | 824 | 76 | |
7. | Nikon D3S | Full Frame | 12.1 | 4256 | 2832 | 720/24p | 23.5 | 12.0 | 3253 | 82 | |
8. | Nikon D4S | Full Frame | 16.2 | 4928 | 3280 | 1080/60p | 24.4 | 13.3 | 3074 | 89 | |
9. | Nikon D6 | Full Frame | 20.7 | 5568 | 3712 | 4K/30p | 25.3 | 14.3 | 2886 | 95 | |
10. | Nikon D610 | Full Frame | 24.2 | 6016 | 4016 | 1080/30p | 25.1 | 14.4 | 2925 | 94 | |
11. | Nikon D750 | Full Frame | 24.2 | 6016 | 4016 | 1080/60p | 24.8 | 14.5 | 2956 | 93 | |
12. | Nikon D810 | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.7 | 14.8 | 2853 | 97 | |
13. | Nikon D850 | Full Frame | 45.4 | 8256 | 5504 | 4K/30p | 26.4 | 14.8 | 2660 | 100 | |
14. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
15. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras are not only capable of taking still images, but can also record movies. The D5 indeed provides for movie recording, while the 645D does not. The highest resolution format that the D5 can use is 4K/30p.
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. The 645D and the D5 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 D5 offers a wider field of view (100%) than the one in the 645D (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645D has a higher magnification (0.78x vs 0.72x), 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 Pentax 645D, the Nikon D5, 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. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
2. | Nikon D5 | optical | Y | 3.2 / 2359 | fixed | Y | 1/8000s | 14.0/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 1D X Mark II | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 16.0/s | n | n | |
6. | Leica S Typ 006 | optical | Y | 3.0 / 922 | fixed | n | 1/4000s | 1.5/s | n | n | |
7. | Nikon D3S | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
8. | Nikon D4S | optical | Y | 3.2 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
9. | Nikon D6 | optical | Y | 3.2 / 2359 | fixed | Y | 1/8000s | 14.0/s | n | n | |
10. | Nikon D610 | optical | Y | 3.2 / 921 | fixed | n | 1/4000s | 6.0/s | Y | n | |
11. | Nikon D750 | optical | Y | 3.2 / 1229 | tilting | n | 1/4000s | 6.0/s | Y | n | |
12. | Nikon D810 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 5.0/s | Y | n | |
13. | Nikon D850 | optical | Y | 3.2 / 2359 | tilting | Y | 1/8000s | 9.0/s | n | n | |
14. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
15. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The D5 has a touchscreen, while the 645D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Pentax 645D and the Nikon D5 both have 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 645D writes its imaging data to SDXC cards, while the D5 uses Compact Flash or XQD cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
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 Pentax 645D and Nikon D5 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. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
2. | Nikon D5 | Y | stereo / mono | Y | Y | mini | 3.0 | - | - | - | |
3. | Canon 1D Mark IV | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
4. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 1D X Mark II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
6. | Leica S Typ 006 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
7. | Nikon D3S | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
8. | Nikon D4S | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
9. | Nikon D6 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
10. | Nikon D610 | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
11. | Nikon D750 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | - | - | |
12. | Nikon D810 | Y | stereo / mono | Y | Y | mini | 3.0 | Y | - | - | |
13. | Nikon D850 | Y | stereo / mono | Y | Y | mini | 3.0 | Y | Y | Y | |
14. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - | |
15. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 645D and the D5 have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the D5 was followed by the Nikon D6. Further information on the features and operation of the 645D and D5 can be found, respectively, in the Pentax 645D Manual (free pdf) or the online Nikon D5 Manual.
Review summary
So how do things add up? Which of the two cameras – the Pentax 645D or the Nikon D5 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Pentax 645D:
- More detail: Offers more megapixels (39.5 vs 20.7MP) with a 35% higher linear resolution.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.72x).
- More compact: Is smaller (156x117mm vs 160x159mm) and thus needs less room in the bag.
- More heavily discounted: Has been available for much longer (launched in March 2010).
Reasons to prefer the Nikon D5:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (2359k vs 921k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (14 vs 1.1 flaps/sec) to capture the decisive moment.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Gets more shots (3780 versus 800) out of a single battery charge.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More affordable: Was introduced into a lower priced category (35 percent cheaper at launch).
- More modern: Reflects 5 years and 9 months of technical progress since the 645D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the D5 is the clear winner of the contest (15 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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 Pentax 645D and the Nikon D5 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 645D or the D5. 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. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
2. | Nikon D5 | .. | .. | 4/5 | 89/100 | 4.5/5 | 5/5 | Jan 2016 | 6,499 | 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 1D X Mark II | .. | .. | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Feb 2016 | 5,999 | ebay.com | |
6. | Leica S Typ 006 | .. | .. | .. | .. | .. | .. | Sep 2012 | 21,950 | ebay.com | |
7. | Nikon D3S | 5/5 | .. | .. | 89/100 | 4.5/5 | 5/5 | Oct 2009 | 5,199 | ebay.com | |
8. | Nikon D4S | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Feb 2014 | 6,499 | ebay.com | |
9. | Nikon D6 | .. | .. | 4/5 | .. | 4.5/5 | 4.5/5 | Feb 2020 | 6,499 | amazon.com | |
10. | Nikon D610 | 4/5 | + + | .. | 87/100 | 4.5/5 | 4.5/5 | Oct 2013 | 1,999 | ebay.com | |
11. | Nikon D750 | 5/5 | + + | 4/5 | 90/100 | 4.5/5 | 4.5/5 | Sep 2014 | 2,299 | ebay.com | |
12. | Nikon D810 | 5/5 | .. | 5/5 | 86/100 | 5/5 | 4.5/5 | Jun 2014 | 3,299 | ebay.com | |
13. | Nikon D850 | 4.5/5 | + + | 5/5 | 89/100 | 4.5/5 | 5/5 | Jul 2017 | 3,299 | amazon.com | |
14. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
15. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 300D vs Nikon D5
- Leica M10 vs Pentax 645D
- Leica S Typ 006 vs Nikon D5
- Leica S-E Typ 006 vs Pentax 645D
- Leica SL vs Nikon D5
- Nikon D5 vs OM System OM-1
- Nikon D5 vs Panasonic GM5
- Nikon D5 vs Sony NEX-5R
- Olympus E-M5 II vs Pentax 645D
- Panasonic LX10 vs Pentax 645D
- Panasonic TZ90 vs Pentax 645D
- Pentax 645D vs Sony A7R
Specifications: Pentax 645D vs Nikon D5
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 | Pentax 645D | Nikon D5 |
---|---|---|
Camera Type | Digital single lens reflex | Digital single lens reflex |
Camera Lens | Pentax 645 mount lenses | Nikon F mount lenses |
Launch Date | March 2010 | January 2016 |
Launch Price | USD 9,995 | USD 6,499 |
Sensor Specs | Pentax 645D | Nikon D5 |
Sensor Technology | CCD | CMOS |
Sensor Format | Medium Format Sensor | Full Frame Sensor |
Sensor Size | 44.0 x 33.0 mm | 35.9 x 23.9 mm |
Sensor Area | 1452 mm2 | 858.01 mm2 |
Sensor Diagonal | 55 mm | 43.1 mm |
Crop Factor | 0.79x | 1.0x |
Sensor Resolution | 39.5 Megapixels | 20.7 Megapixels |
Image Resolution | 7264 x 5440 pixels | 5588 x 3712 pixels |
Pixel Pitch | 6.06 μm | 6.44 μm |
Pixel Density | 2.72 MP/cm2 | 2.42 MP/cm2 |
Moiré control | no AA filter | Anti-Alias filter |
Movie Capability | no Video | 4K/30p Video |
ISO Setting | 100 - 1,600 ISO | 100 - 102,400 ISO |
ISO Boost | no Enhancement | 50 - 3,280,000 ISO |
Image Processor | PRIME II | EXPEED 5 |
DXO Sensor Quality (score) | 82 | 88 |
DXO Color Depth (bits) | 24.6 | 25.1 |
DXO Dynamic Range (EV) | 12.6 | 12.3 |
DXO Low Light (ISO) | 1262 | 2343 |
Screen Specs | Pentax 645D | Nikon D5 |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 98% | 100% |
Viewfinder Magnification | 0.78x | 0.72x |
Top-Level Screen | Control Panel | Control Panel |
LCD Framing | Live View | |
Rear LCD Size | 3.0inch | 3.2inch |
LCD Resolution | 921k dots | 2359k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Pentax 645D | Nikon D5 |
Focus System | Phase-detect AF | Phase-detect AF |
Continuous Shooting | 1.1 shutter flaps/s | 14 shutter flaps/s |
Shutter Life Expectancy | 50 000 actuations | 400 000 actuations |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | CF or XQD cards |
Single or Dual Card Slots | Dual card slots | Dual card slots |
Connectivity Specs | Pentax 645D | Nikon D5 |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | PC Sync socket |
USB Connector | USB 2.0 | USB 3.0 |
HDMI Port | no HDMI | mini HDMI |
Microphone Port | no MIC socket | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | no Wifi |
Body Specs | Pentax 645D | Nikon D5 |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Pentax D-LI90 | Nikon EN-EL18a |
Battery Life (CIPA) | 800 shots per charge | 3780 shots per charge |
Body Dimensions |
156 x 117 x 119 mm (6.1 x 4.6 x 4.7 in) |
160 x 159 x 92 mm (6.3 x 6.3 x 3.6 in) |
Camera Weight | 1480 g (52.2 oz) | 1415 g (49.9 oz) |
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