Nikon D1X vs Pentax 645Z
The Nikon D1X and the Pentax 645Z are two professional cameras that were revealed to the public, respectively, in February 2001 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (D1X) and a medium format (645Z) sensor. The Nikon has a resolution of 5.9 megapixels, whereas the Pentax provides 51.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Nikon D1X||Pentax 645Z|
|Digital single lens reflex||Digital single lens reflex|
|Nikon F mount lenses||Pentax 645 mount lenses|
|5.9 MP, APS-C Sensor||51.1 MP, Medium Format Sensor|
|no Video||1080/60i Video|
|ISO 125-800 (125-3200)||ISO 100-204800|
|Optical viewfinder||Optical viewfinder|
|2.0" LCD, 120k dots||3.2" LCD, 1037k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|3 shutter flaps per second||3 shutter flaps per second|
|Weathersealed body||Weathersealed body|
|1200 shots per battery charge||650 shots per battery charge|
|157 x 153 x 85 mm, 1100 g||156 x 117 x 123 mm, 1550 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D1X and the Pentax 645Z? 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.
The side-by-side display below illustrates the physical size and weight of the Nikon D1X and the Pentax 645Z. 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 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 645Z is notably smaller (24 percent) than the Nikon D1X. However, the 645Z is substantially heavier (41 percent) than the D1X. 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 D1X gets 1200 shots out of its EN-4 battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. As can be seen in the images above, the D1X 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 want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|Nikon D1X»||6.2 in||6.0 in||3.3 in||38.8 oz||1200||Y||Feb 2001||5,999||Nikon D1X|
|Pentax 645Z«||6.1 in||4.6 in||4.8 in||54.7 oz||650||Y||Apr 2014||8,499||Pentax 645Z|
|Canon 5DS« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699||Canon 5DS|
|Canon 5DS R« »||6.0 in||4.6 in||3.0 in||32.8 oz||700||Y||Feb 2015||3,699||Canon 5DS R|
|Hasselblad X1D« »||5.9 in||3.9 in||2.8 in||25.6 oz||..||Y||Jun 2016||8,995||Hasselblad X1D|
|Leica SL« »||5.8 in||4.1 in||1.5 in||29.9 oz||400||Y||Oct 2015||7,450||Leica SL|
|Nikon D4« »||6.3 in||6.2 in||3.6 in||47.3 oz||2600||Y||Jan 2012||5,999||Nikon D4|
|Nikon D300S« »||5.8 in||4.5 in||3.2 in||33.1 oz||950||Y||Jul 2009||1,799||Nikon D300S|
|Nikon D300« »||5.8 in||4.5 in||2.9 in||32.6 oz||1000||Y||Aug 2007||1,799||Nikon D300|
|Nikon D2Xs« »||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Jun 2006||4,699||Nikon D2Xs|
|Nikon D200« »||5.8 in||4.4 in||2.9 in||32.5 oz||400||Y||Nov 2005||1,699||Nikon D200|
|Nikon D2X« »||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Sep 2004||4,999||Nikon D2X|
|Nikon D2H« »||6.2 in||5.9 in||3.4 in||37.7 oz||2900||Y||Jul 2003||3,499||Nikon D2H|
|Nikon D100« »||5.7 in||4.6 in||3.2 in||27.5 oz||370||n||Feb 2002||1,999||Nikon D100|
|Nikon D1H« »||6.2 in||6.0 in||3.3 in||38.8 oz||1200||Y||Feb 2001||4,499||Nikon D1H|
|Nikon D1« »||6.2 in||6.0 in||3.3 in||38.8 oz||..||Y||Jun 1999||5,499||Nikon D1|
|Pentax 645D« »||6.1 in||4.6 in||4.7 in||52.2 oz||800||Y||Mar 2010||9,995||Pentax 645D|
|Note: Measurements and pricing do not include easily detachable parts, such as 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 D1X was launched at a markedly lower price (by 29 percent) than the 645Z, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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.
The size of the imaging sensor is a crucial determinant 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. 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 Nikon D1X features an APS-C sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 288 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 0.79. The sensor in the D1X has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.
With 51.1MP, the 645Z offers a higher resolution than the D1X (5.9MP), but the 645Z has smaller individual pixels (pixel pitch of 5.30μm versus 7.92μm for the D1X). Yet, the 645Z is a much more recent model (by 13 years and 2 months) than the D1X, 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 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inch or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inch or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inch or 69.9 x 52.4 cm. The corresponding values for the Nikon D1X are 15 x 9.8 inch or 38.2 x 24.9 cm for good quality, 12 x 7.8 inch or 30.6 x 19.9 cm for very good quality, and 10 x 6.5 inch or 25.5 x 16.6 cm for excellent quality prints.
The Nikon D1X has a native sensitivity range from ISO 125 to ISO 800, which can be extended to ISO 125-3200. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).
For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Nikon D1X||APS-C||5.9||3008||1960||none||..||..||..||..||Nikon D1X|
|Pentax 645Z||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101||Pentax 645Z|
|Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87||Canon 5DS|
|Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86||Canon 5DS R|
|Hasselblad X1D||Medium Format||51.3||8272||6200||1080/25p||26.2||14.8||4489||102||Hasselblad X1D|
|Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88||Leica SL|
|Nikon D4||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89||Nikon D4|
|Nikon D300S||APS-C||12.2||4288||2848||720/24p||22.5||12.2||787||70||Nikon D300S|
|Nikon D300||APS-C||12.2||4288||2848||none||22.1||12.0||679||67||Nikon D300|
|Nikon D2Xs||APS-C||12.2||4288||2848||none||22.2||10.9||489||59||Nikon D2Xs|
|Nikon D200||APS-C||10.0||3872||2592||none||22.3||11.5||583||64||Nikon D200|
|Nikon D2X||APS-C||12.2||4288||2848||none||22.1||10.9||476||59||Nikon D2X|
|Nikon D2H||APS-C||4.0||2464||1632||none||18.9||10.0||352||40||Nikon D2H|
|Nikon D100||APS-C||6.0||3008||2000||none||..||..||..||..||Nikon D100|
|Nikon D1H||APS-C||2.6||2000||1312||none||..||..||..||..||Nikon D1H|
|Nikon D1||APS-C||2.6||2000||1312||none||..||..||..||..||Nikon D1|
|Pentax 645D||Medium Format||39.5||7264||5440||none||24.6||12.6||1262||82||Pentax 645D|
Many modern cameras are not only capable of taking still images, but can also record movies. The 645Z indeed provides for movie recording, while the D1X does not. The highest resolution format that the 645Z can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. The D1X and the 645Z 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 645Z offers a wider field of view (98%) than the one in the D1X (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.53x), 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 Nikon D1X, the Pentax 645Z, and comparable cameras.
|Nikon D1X||optical||Y||2.0||120||fixed||n||1/16000s||3.0||n||n||Nikon D1X|
|Pentax 645Z||optical||Y||3.2||1037||tilting||n||1/4000s||3.0||n||n||Pentax 645Z|
|Canon 5DS||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n||Canon 5DS|
|Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n||Canon 5DS R|
|Hasselblad X1D||2360||n||3.0||920||fixed||Y||1/2000s||2.3||n||n||Hasselblad X1D|
|Leica SL||4400||Y||3.0||1040||fixed||Y||1/8000s||11.0||n||n||Leica SL|
|Nikon D4||optical||Y||3.2||921||fixed||n||1/8000s||11.0||n||n||Nikon D4|
|Nikon D300S||optical||Y||3.0||920||fixed||n||1/8000s||7.0||Y||n||Nikon D300S|
|Nikon D300||optical||Y||3.0||922||fixed||n||1/8000s||6.0||Y||n||Nikon D300|
|Nikon D2Xs||optical||Y||2.5||230||fixed||n||1/8000s||5.0||n||n||Nikon D2Xs|
|Nikon D200||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Nikon D200|
|Nikon D2X||optical||Y||2.5||235||fixed||n||1/8000s||5.0||n||n||Nikon D2X|
|Nikon D2H||optical||Y||2.5||211||fixed||n||1/8000s||8.0||n||n||Nikon D2H|
|Nikon D100||optical||Y||1.8||118||fixed||n||1/4000s||3.0||Y||n||Nikon D100|
|Nikon D1H||optical||Y||2.0||120||fixed||n||1/16000s||5.0||n||n||Nikon D1H|
|Nikon D1||optical||Y||2.0||120||fixed||n||1/16000s||1.5||n||n||Nikon D1|
|Pentax 645D||optical||Y||3.0||921||fixed||n||1/4000s||1.1||n||n||Pentax 645D|
The Pentax 645Z 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 D1X writes its imaging data to Compact Flash cards, while the 645Z uses SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the D1X only has one slot.
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 Nikon D1X and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Nikon D1X||Y||none||none||-||-||none||FW||-||-||-||Nikon D1X|
|Pentax 645Z||Y||stereo||mono||Y||-||mini||3.0||-||-||-||Pentax 645Z|
|Canon 5DS||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS|
|Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS R|
|Hasselblad X1D||Y||stereo||mono||Y||Y||mini||3.0||Y||-||-||Hasselblad X1D|
|Leica SL||Y||stereo||mono||Y||Y||full||3.0||Y||-||-||Leica SL|
|Nikon D4||Y||mono||mono||Y||Y||micro||2.0||-||-||-||Nikon D4|
|Nikon D300S||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Nikon D300S|
|Nikon D300||Y||none||none||-||-||mini||2.0||-||-||-||Nikon D300|
|Nikon D2Xs||Y||none||none||-||-||none||2.0||-||-||-||Nikon D2Xs|
|Nikon D200||Y||none||none||-||-||none||2.0||-||-||-||Nikon D200|
|Nikon D2X||Y||none||none||-||-||none||2.0||-||-||-||Nikon D2X|
|Nikon D2H||Y||none||none||-||-||none||2.0||-||-||-||Nikon D2H|
|Nikon D100||Y||none||none||-||-||none||1.1||-||-||-||Nikon D100|
|Nikon D1H||Y||none||none||-||-||none||FW||-||-||-||Nikon D1H|
|Nikon D1||Y||none||none||-||-||none||FW||-||-||-||Nikon D1|
|Pentax 645D||Y||stereo||none||-||-||none||2.0||-||-||-||Pentax 645D|
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the D1X has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the D1X was succeeded by the Nikon D2X. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Nikon and Pentax websites.
So what is the bottom line? Is there a clear favorite between the Nikon D1X and the Pentax 645Z? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Nikon D1X:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Faster shutter: Has higher mechanical shutter speed (1/16000s vs 1/4000s) to freeze action.
- Less heavy: Is lighter (by 450g or 29 percent) and hence easier to carry around.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1200 versus 650) on a single battery charge.
- More affordable: Was introduced into a lower priced category (29 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in February 2001).
Reasons to prefer the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 5.9MP), which boosts linear resolution by 187%.
- 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.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- More complete view: Has a viewfinder with a larger field of view (98% vs 96%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.53x).
- Larger screen: Has a bigger rear LCD (3.2" vs 2.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 120k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (156x117mm vs 157x153mm) and will fit more readily into a bag.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 13 years and 2 months of technical progress since the D1X launch.
If the number of relative strengths (bullet points above) is taken as a guide, the 645Z is the clear winner of the contest (16 : 7 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Nikon D1X and the Pentax 645Z 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the D1X or the 645Z. 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.
This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
The above review scores should be interpreted 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1D X vs Nikon D1X
- Canon 5DS R vs Pentax 645Z
- Canon SL2 vs Pentax 645Z
- Fujifilm GFX 100 vs Pentax 645Z
- Nikon D1X vs Nikon D300S
- Nikon D1X vs Olympus E-M10
- Nikon D1X vs Panasonic FZ2000
- Nikon D1X vs Panasonic LX100
- Nikon D3000 vs Pentax 645Z
- Nikon D7000 vs Pentax 645Z
- Pentax 645Z vs Sony A900
- Pentax 645Z vs Sony RX10
Specifications: Nikon D1X vs Pentax 645Z
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||Nikon D1X||Pentax 645Z|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Nikon F mount lenses||Pentax 645 mount lenses|
|Launch Date||February 2001||April 2014|
|Launch Price||USD 5999||USD 8499|
|Sensor Specs||Nikon D1X||Pentax 645Z|
|Sensor Format||APS-C Sensor||Medium Format Sensor|
|Sensor Size||23.7 x 15.6 mm||43.8 x 32.8 mm|
|Sensor Area||369.72 mm2||1436.64 mm2|
|Sensor Diagonal||28.4 mm||54.7 mm|
|Sensor Resolution||5.9 Megapixels||51.1 Megapixels|
|Image Resolution||3008 x 1960 pixels||8256 x 6192 pixels|
|Pixel Pitch||7.92 μm||5.30 μm|
|Pixel Density||1.59 MP/cm2||3.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||125-800 ISO||100-204800 ISO|
|ISO Boost||125-3200 ISO||no Enhancement|
|DXO Sensor Quality (score)||..||101|
|DXO Color Depth (bits)||..||26.0|
|DXO Dynamic Range (EV)||..||14.7|
|DXO Low Light (ISO)||..||4505|
|Screen Specs||Nikon D1X||Pentax 645Z|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||96%||98%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View|
|Rear LCD Size||2.0 inch||3.2 inch|
|LCD Resolution||120k dots||1037k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Nikon D1X||Pentax 645Z|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/16000/s||1/4000/s|
|Continuous Shooting||3 shutter flaps/s||3 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|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Nikon D1X||Pentax 645Z|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||Firewire||USB 3.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Nikon D1X||Pentax 645Z|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||1200 shots per charge||650 shots per charge|
157 x 153 x 85 mm
(6.2 x 6.0 x 3.3 in)
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
|Camera Weight||1100 g (38.8 oz)||1550 g (54.7 oz)|
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