Canon 1Ds vs Pentax 645Z
The Canon EOS-1Ds and the Pentax 645Z are two professional cameras that were officially introduced, respectively, in September 2002 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds) and a medium format (645Z) sensor. The Canon has a resolution of 11 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.
|Canon 1Ds||Pentax 645Z|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Pentax 645 mount lenses|
|11 MP, Full Frame Sensor||51.1 MP, Medium Format Sensor|
|no Video||1080/60i Video|
|ISO 100-1250||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|
|600 shots per battery charge||650 shots per battery charge|
|156 x 158 x 80 mm, 1265 g||156 x 117 x 123 mm, 1550 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds 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 Canon 1Ds and the Pentax 645Z. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size 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 (26 percent) than the Canon 1Ds. However, the 645Z is markedly heavier (23 percent) than the 1Ds. 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 1Ds gets 600 shots out of its NP-E3 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 1Ds 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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon 1Ds»||6.1 in||6.2 in||3.1 in||44.6 oz||600||Y||Sep 2002||8,999||-||Canon 1Ds|
|Pentax 645Z«||6.1 in||4.6 in||4.8 in||54.7 oz||650||Y||Apr 2014||8,499||Pentax 645Z|
|Canon 1D X Mark II« »||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|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|
|Canon 1D C« »||6.2 in||6.5 in||3.3 in||54.5 oz||1120||Y||Apr 2012||14,999||-||Canon 1D C|
|Canon 1D Mark IV« »||6.1 in||6.2 in||3.1 in||43.4 oz||1500||Y||Oct 2009||4,999||-||Canon 1D Mark IV|
|Canon 1D Mark III« »||6.1 in||6.2 in||3.1 in||40.7 oz||2200||Y||Feb 2007||4,499||-||Canon 1D Mark III|
|Canon 1Ds Mark III« »||5.9 in||6.3 in||3.1 in||48.9 oz||1800||Y||Aug 2007||7,999||-||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||6.1 in||6.2 in||3.1 in||55.2 oz||1200||Y||Aug 2005||3,999||-||Canon 1D Mark II N|
|Canon 5D« »||6.0 in||4.4 in||3.0 in||31.6 oz||400||Y||Aug 2005||3,299||-||Canon 5D|
|Canon 1D Mark II« »||6.1 in||6.2 in||3.1 in||54.1 oz||1200||Y||Jan 2004||4,499||-||Canon 1D Mark II|
|Canon 1Ds Mark II« »||6.1 in||6.2 in||3.1 in||42.9 oz||1200||Y||Sep 2004||7,999||-||Canon 1Ds Mark II|
|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 D2Xs« »||6.2 in||5.9 in||3.4 in||44.2 oz||3800||Y||Jun 2006||4,699||-||Nikon D2Xs|
|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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 645Z was somewhat cheaper (by 6 percent) than the 1Ds at launch, but both cameras fall into the same price category. 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. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 Canon 1Ds features a full frame sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z 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 1Ds has a native 3:2 aspect ratio, while the one in the 645Z offers a 4:3 aspect.
In terms of underlying technology, both cameras are build around CMOS sensors.
With 51.1MP, the 645Z offers a higher resolution than the 1Ds (11MP), but the 645Z has smaller individual pixels (pixel pitch of 5.30μm versus 8.83μm for the 1Ds). Yet, the 645Z is a much more recent model (by 11 years and 6 months) than the 1Ds, 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 Canon 1Ds are 20.3 x 13.5 inch or 51.6 x 34.3 cm for good quality, 16.3 x 10.8 inch or 41.3 x 27.5 cm for very good quality, and 13.5 x 9 inch or 34.4 x 22.9 cm for excellent quality prints.
The Canon EOS-1Ds has a native sensitivity range from ISO 100 to ISO 1250, which can be extended to ISO 50-1250. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).
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 645Z offers substantially better image quality than the 1Ds (overall score 38 points higher). The advantage is based on 4.2 bits higher color depth, 3.7 EV in additional dynamic range, and 2.2 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.
|Canon 1Ds»||Full Frame||11.0||4064||2704||-||21.8||11.0||954||63||Canon 1Ds|
|Pentax 645Z«||Medium Format||51.1||8256||6192||1080/60i||26.0||14.7||4505||101||Pentax 645Z|
|Canon 1D X Mark II« »||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|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|
|Canon 1D C« »||Full Frame||17.9||5184||3456||4K/24p||-||-||-||-||Canon 1D C|
|Canon 1D Mark IV« »||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74||Canon 1D Mark IV|
|Canon 1D Mark III« »||APS-H||10.1||3888||2592||-||22.7||11.7||1078||71||Canon 1D Mark III|
|Canon 1Ds Mark III« »||Full Frame||21.0||5616||3744||-||24.0||12.0||1663||80||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||APS-H||8.2||3504||2336||-||22.3||11.2||975||66||Canon 1D Mark II N|
|Canon 5D« »||Full Frame||12.7||4368||2912||-||22.9||11.1||1368||71||Canon 5D|
|Canon 1D Mark II« »||APS-H||8.2||3504||2336||-||22.3||11.1||1003||66||Canon 1D Mark II|
|Canon 1Ds Mark II« »||Full Frame||16.6||4992||3328||-||23.3||11.3||1480||74||Canon 1Ds Mark II|
|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 D2Xs« »||APS-C||12.2||4288||2848||-||22.2||10.9||489||59||Nikon D2Xs|
|Pentax 645D« »||Medium Format||39.5||7264||5440||-||24.6||12.6||1262||82||Pentax 645D|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 645Z indeed provides for movie recording, while the 1Ds 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 1Ds 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 1Ds offers a wider field of view (100%) than the one in the 645Z (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.70x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 1Ds and Pentax 645Z along with similar information for a selection of comparators.
|Canon 1Ds»||optical||Y||2.0||120||fixed||n||1/8000s||3.0||n||n||Canon 1Ds|
|Pentax 645Z«||optical||Y||3.2||1037||tilting||n||1/4000s||3.0||n||n||Pentax 645Z|
|Canon 1D X Mark II« »||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|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|
|Canon 1D C« »||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D C|
|Canon 1D Mark IV« »||optical||Y||3.0||920||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark IV|
|Canon 1D Mark III« »||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark III|
|Canon 1Ds Mark III« »||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||optical||Y||2.5||230||fixed||n||1/8000s||8.5||n||n||Canon 1D Mark II N|
|Canon 5D« »||optical||Y||2.5||230||fixed||n||1/8000s||3.0||n||n||Canon 5D|
|Canon 1D Mark II« »||optical||Y||2.0||230||fixed||n||1/8000s||8.3||n||n||Canon 1D Mark II|
|Canon 1Ds Mark II« »||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n||Canon 1Ds Mark II|
|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 D2Xs« »||optical||Y||2.5||230||fixed||n||1/8000s||5.0||n||n||Nikon D2Xs|
|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 1Ds 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 1Ds 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 Canon EOS-1Ds and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1Ds»||Y||-||-||-||-||-||FW||-||-||-||Canon 1Ds|
|Pentax 645Z«||Y||stereo||mono||Y||-||mini||3.0||-||-||-||Pentax 645Z|
|Canon 1D X Mark II« »||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon 5DS« »||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS|
|Canon 5DS R« »||Y||mono||mono||Y||-||mini||3.0||-||-||-||Canon 5DS R|
|Canon 1D C« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 1D C|
|Canon 1D Mark IV« »||Y||stereo||-||Y||-||mini||2.0||-||-||-||Canon 1D Mark IV|
|Canon 1D Mark III« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1D Mark III|
|Canon 1Ds Mark III« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 1D Mark II N|
|Canon 5D« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 5D|
|Canon 1D Mark II« »||Y||-||-||-||-||-||1.1||-||-||-||Canon 1D Mark II|
|Canon 1Ds Mark II« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1Ds Mark II|
|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 D2Xs« »||Y||-||-||-||-||-||2.0||-||-||-||Nikon D2Xs|
|Pentax 645D« »||Y||stereo||-||-||-||-||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 1Ds has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1Ds was succeeded by the Canon 1Ds Mark II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Pentax websites.
So how do things add up? Is there a clear favorite between the Canon 1Ds 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 Canon EOS-1Ds:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Less heavy: Is lighter (by 285g or 18 percent) and hence easier to carry around.
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- More heavily discounted: Has been available for much longer (launched in September 2002).
Advantages of the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 11MP), which boosts linear resolution by 111%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (38 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (4.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.7 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.2 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.70x).
- 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 156x158mm) 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 11 years and 6 months of technical progress since the 1Ds launch.
If the count of individual advantages (bullet points above) is taken as a guide, the 645Z is the clear winner of the contest (15 : 6 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 Canon 1Ds 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 1Ds or the 645Z perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|Canon 1Ds»||-||+ +||-||-||-||Sep 2002||8,999||-||Canon 1Ds|
|Pentax 645Z«||-||-||4.5/5||5/5||5/5||Apr 2014||8,499||Pentax 645Z|
|Canon 1D X Mark II« »||-||89/100||4.5/5||5/5||4.5/5||Feb 2016||5,999||Canon 1D X Mark II|
|Canon 5DS« »||+||83/100||4.5/5||5/5||4.5/5||Feb 2015||3,699||Canon 5DS|
|Canon 5DS R« »||+||83/100||5/5||5/5||4.5/5||Feb 2015||3,699||Canon 5DS R|
|Canon 1D C« »||-||-||-||-||-||Apr 2012||14,999||-||Canon 1D C|
|Canon 1D Mark IV« »||-||89/100||-||5/5||-||Oct 2009||4,999||-||Canon 1D Mark IV|
|Canon 1D Mark III« »||-||-||-||o||-||Feb 2007||4,499||-||Canon 1D Mark III|
|Canon 1Ds Mark III« »||-||+ +||4.5/5||-||-||Aug 2007||7,999||-||Canon 1Ds Mark III|
|Canon 1D Mark II N« »||-||-||-||-||-||Aug 2005||3,999||-||Canon 1D Mark II N|
|Canon 5D« »||88/100||+ +||o||o||-||Aug 2005||3,299||-||Canon 5D|
|Canon 1D Mark II« »||-||+ +||-||o||-||Jan 2004||4,499||-||Canon 1D Mark II|
|Canon 1Ds Mark II« »||-||+ +||-||-||-||Sep 2004||7,999||-||Canon 1Ds Mark II|
|Hasselblad X1D« »||o||81/100||-||-||4/5||Jun 2016||8,995||-||Hasselblad X1D|
|Leica SL« »||-||84/100||4.5/5||4/5||4/5||Oct 2015||7,450||Leica SL|
|Nikon D2Xs« »||-||-||-||o||-||Jun 2006||4,699||-||Nikon D2Xs|
|Pentax 645D« »||-||-||-||4.5/5||-||Mar 2010||9,995||-||Pentax 645D|
|Notes: (+ +) 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 1D vs Canon 1Ds Mark III
- Canon 1Ds Mark II vs Canon D30
- Canon 1Ds Mark II vs Olympus E-PL3
- Canon 1Ds Mark III vs Leica TL2
- Canon 1Ds Mark III vs Nikon D5500
- Canon 1Ds Mark III vs Sony A99 II
- Canon 1Ds vs Fujifilm X-A1
- Canon 1Ds vs Nikon D3500
- Canon 1Ds vs Sony A6300
- Olympus E-PM1 vs Pentax 645Z
- Panasonic GH3 vs Pentax 645Z
- Panasonic GX8 vs Pentax 645Z
Specifications: Canon 1Ds 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||Canon 1Ds||Pentax 645Z|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Pentax 645 mount lenses|
|Launch Date||September 2002||April 2014|
|Launch Price||USD 8999||USD 8499|
|Sensor Specs||Canon 1Ds||Pentax 645Z|
|Sensor Format||Full Frame Sensor||Medium Format Sensor|
|Sensor Size||36.0 x 23.8 mm||43.8 x 32.8 mm|
|Sensor Area||856.8 mm2||1436.64 mm2|
|Sensor Diagonal||43.2 mm||54.7 mm|
|Sensor Resolution||11 Megapixels||51.1 Megapixels|
|Image Resolution||4064 x 2704 pixels||8256 x 6192 pixels|
|Pixel Pitch||8.83 μm||5.30 μm|
|Pixel Density||1.28 MP/cm2||3.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100-1250 ISO||100-204800 ISO|
|ISO Boost||50-1250 ISO||no Enhancement|
|Image Processor||DIGIC||PRIME III|
|DXO Sensor Quality (score)||63||101|
|DXO Color Depth (bits)||21.8||26.0|
|DXO Dynamic Range (EV)||11.0||14.7|
|DXO Low Light (ISO)||954||4505|
|Screen Specs||Canon 1Ds||Pentax 645Z|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||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||Canon 1Ds||Pentax 645Z|
|Autofocus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/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||Canon 1Ds||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||Canon 1Ds||Pentax 645Z|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||600 shots per charge||650 shots per charge|
156 x 158 x 80 mm
(6.1 x 6.2 x 3.1 in)
156 x 117 x 123 mm
(6.1 x 4.6 x 4.8 in)
|Camera Weight||1265 g (44.6 oz)||1550 g (54.7 oz)|
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