Canon 1D Mark IV vs Pentax 645Z
The Canon EOS-1D Mark IV and the Pentax 645Z are two professional cameras that were revealed to the public, respectively, in October 2009 and April 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark IV) and a medium format (645Z) sensor. The Canon has a resolution of 16 megapixels, whereas the Pentax provides 51.1 MP. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.
|Canon 1D Mark IV||Pentax 645Z|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Pentax 645 mount lenses|
|16 MP, APS-H Sensor||51.1 MP, Medium Format Sensor|
|1080/30p Video||1080/60i Video|
|ISO 100-12800 (50-102400)||ISO 100-204800|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 920k dots||3.2" LCD, 1037k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|10 shutter flaps per second||3 shutter flaps per second|
|Weathersealed body||Weathersealed body|
|1500 shots per battery charge||650 shots per battery charge|
|156 x 157 x 80 mm, 1230 g||156 x 117 x 123 mm, 1550 g|
Body comparison: Canon 1D Mark IV vs Pentax 645Z
The physical size and weight of the Canon 1D Mark IV and the Pentax 645Z are illustrated 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 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 (25 percent) than the Canon 1D Mark IV. However, the 645Z is markedly heavier (26 percent) than the 1D Mark IV. 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 1D Mark IV gets 1500 shots out of its LP-E4 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 1D Mark IV 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 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.
|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|
|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 X« »||6.2 in||6.6 in||3.3 in||54.7 oz||1120||Y||Oct 2011||6,799||-||Canon 1D X|
|Canon 60D« »||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699||-||Canon 7D|
|Canon 5D Mark II« »||6.0 in||4.5 in||3.0 in||30.0 oz||850||Y||Sep 2008||3,499||-||Canon 5D Mark II|
|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 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 D4« »||6.3 in||6.2 in||3.6 in||47.3 oz||2600||Y||Jan 2012||5,999||-||Nikon D4|
|Nikon D3S« »||6.3 in||6.2 in||3.5 in||43.7 oz||4200||Y||Oct 2009||5,199||-||Nikon D3S|
|Pentax 645D« »||6.1 in||4.6 in||4.7 in||52.2 oz||800||Y||Mar 2010||9,995||-||Pentax 645D|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 1D Mark IV was launched at a markedly lower price (by 41 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Canon 1D Mark IV vs Pentax 645Z
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 1D Mark IV features an APS-H sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 177 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 0.79. The sensor in the 1D Mark IV 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 1D Mark IV (16MP), but the 645Z has smaller individual pixels (pixel pitch of 5.30μm versus 5.70μm for the 1D Mark IV). Yet, the 645Z is a much more recent model (by 4 years and 5 months) than the 1D Mark IV, 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 Canon EOS-1D Mark IV has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-102400. 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 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"). Of the two cameras under consideration, the 645Z offers substantially better image quality than the 1D Mark IV (overall score 27 points higher). The advantage is based on 3.2 bits higher color depth, 2.7 EV in additional dynamic range, and 1.8 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Canon 1D Mark IV»||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74||Canon 1D Mark IV|
|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||1080/60p||24.7||12.4||2381||87||Canon 5DS|
|Canon 5DS R« »||Full Frame||50.3||8688||5792||1080/60p||24.6||12.4||2308||86||Canon 5DS R|
|Canon 1D X« »||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82||Canon 1D X|
|Canon 60D« »||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon 7D« »||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Canon 5D Mark II« »||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79||Canon 5D Mark II|
|Canon 1D Mark III« »||APS-H||10.1||3888||2592||-||22.7||11.7||1078||71||Canon 1D Mark III|
|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 D4« »||Full Frame||16.2||4928||3280||1080/30p||24.7||13.1||2965||89||Nikon D4|
|Nikon D3S« »||Full Frame||12.1||4256||2832||720/24p||23.5||12.0||3253||82||Nikon D3S|
|Pentax 645D« »||Medium Format||39.5||7264||5440||-||24.6||12.6||1262||82||Pentax 645D|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the 645Z provides a faster frame rate than the 1D Mark IV. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/30p.
Feature comparison: Canon 1D Mark IV vs Pentax 645Z
Beyond body and sensor, cameras can and do differ across a range of features. The 1D Mark IV 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 1D Mark IV 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 0.58x), 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 1D Mark IV and Pentax 645Z along with similar information for a selection of comparators.
|Canon 1D Mark IV»||optical||Y||3.0||920||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark IV|
|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 X« »||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D X|
|Canon 60D« »||optical||Y||3.0||1040||swivel||n||1/8000s||5.3||Y||n||Canon 60D|
|Canon 7D« »||optical||Y||3.0||920||fixed||n||1/8000s||8.0||Y||n||Canon 7D|
|Canon 5D Mark II« »||optical||Y||3.0||920||fixed||n||1/8000s||3.9||n||n||Canon 5D Mark II|
|Canon 1D Mark III« »||optical||Y||3.0||230||fixed||n||1/8000s||10.0||n||n||Canon 1D Mark III|
|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 D4« »||optical||Y||3.2||921||fixed||n||1/8000s||11.0||n||n||Nikon D4|
|Nikon D3S« »||optical||Y||3.0||921||fixed||n||1/8000s||11.0||n||n||Nikon D3S|
|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 1D Mark IV writes its imaging data to Compact Flash cards, while the 645Z uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails.
Connectivity comparison: Canon 1D Mark IV vs Pentax 645Z
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-1D Mark IV and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1D Mark IV»||Y||stereo||-||Y||-||mini||2.0||-||-||-||Canon 1D Mark IV|
|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 X« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 1D X|
|Canon 60D« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon 7D« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Canon 5D Mark II« »||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 1D Mark III« »||Y||-||-||-||-||-||2.0||-||-||-||Canon 1D Mark III|
|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 D4« »||Y||mono||mono||-||-||micro||2.0||-||-||-||Nikon D4|
|Nikon D3S« »||Y||stereo||-||-||-||mini||2.0||-||-||-||Nikon D3S|
|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 1D Mark IV has been discontinued (but it can be found pre-owned on eBay). There has not been a direct replacement model for the 1D Mark IV from Canon. Further information on the two cameras, as well as related accessories, can be found on the official Canon and Pentax websites.
Review summary: Canon 1D Mark IV vs Pentax 645Z
So what conclusions can be drawn? Is there a clear favorite between the Canon 1D Mark IV and the Pentax 645Z? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS-1D Mark IV:
- 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.
- Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
- Less heavy: Is lighter (by 320g or 21 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 (1500 versus 650) on a single battery charge.
- More affordable: Was introduced into a lower priced category (41 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in October 2009).
Advantages of the Pentax 645Z:
- More detail: Has more megapixels (51.1 vs 16MP), which boosts linear resolution by 75%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (27 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.2 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (2.7 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (1.8 stops ISO advantage).
- Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.58x).
- 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 (1037k vs 920k 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 156x157mm) and will fit more readily into a bag.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- More modern: Reflects 4 years and 5 months of technical progress since the 1D Mark IV launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 645Z is the clear winner of the contest (15 : 9 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.
Do the specifications of the Canon 1D Mark IV and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing.In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 1D Mark IV and the 645Z 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: Canon 1D Mark IV vs Pentax 645Z
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog).
|Canon 1D Mark IV»||-||89/100||-||5/5||-||Oct 2009||4,999||-||Canon 1D Mark IV|
|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 X« »||-||-||4.5/5||4.5/5||4.5/5||Oct 2011||6,799||-||Canon 1D X|
|Canon 60D« »||+||79/100||4/5||5/5||4.5/5||Aug 2010||1,399||-||Canon 60D|
|Canon 7D« »||++||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Canon 5D Mark II« »||91/100||79/100||4/5||5/5||-||Sep 2008||3,499||-||Canon 5D Mark II|
|Canon 1D Mark III« »||-||-||-||o||-||Feb 2007||4,499||-||Canon 1D Mark III|
|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 D4« »||-||-||4.5/5||-||4.5/5||Jan 2012||5,999||-||Nikon D4|
|Nikon D3S« »||-||89/100||4.5/5||5/5||5/5||Oct 2009||5,199||-||Nikon D3S|
|Pentax 645D« »||-||-||-||4.5/5||-||Mar 2010||9,995||-||Pentax 645D|
|Notes: ++) highly recommended; +) recommended; o) reviewed; -) not available.|
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 1D X vs Nikon D500
- Canon 5D Mark III vs Nikon D500
- Canon G1 X Mark II vs Canon 7D
- Canon G1 X Mark III vs Fujifilm X-Pro1
- Canon G7 X Mark II vs Panasonic TS7
- Fujifilm X10 vs Fujifilm X100F
- Leica V-LUX Typ 114 vs Panasonic FZ200
- Nikon D5 vs Leica SL
- Olympus E-1 vs Canon M100
- Panasonic GX1 vs Canon G7 X Mark II
- Panasonic GX8 vs Fujifilm X-Pro1
- Samsung NX1 vs Nikon D7100
Specifications: Canon 1D Mark IV vs Pentax 645Z
|Camera Model||Canon 1D Mark IV||Pentax 645Z|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Pentax 645 mount lenses|
|Launch Date||October 2009||April 2014|
|Launch Price||USD 4999||USD 8499|
|Sensor Specs||Canon 1D Mark IV||Pentax 645Z|
|Sensor Format||APS-H Sensor||Medium Format Sensor|
|Sensor Size||27.9 x 18.6 mm||43.8 x 32.8 mm|
|Sensor Area||518.94 mm2||1436.64 mm2|
|Sensor Diagonal||33.5 mm||54.7 mm|
|Sensor Resolution||16 Megapixels||51.1 Megapixels|
|Image Resolution||4896 x 3264 pixels||8256 x 6192 pixels|
|Pixel Pitch||5.70 μm||5.30 μm|
|Pixel Density||3.08 MP/cm2||3.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||1080/60i Video|
|ISO Setting||100-12800 ISO||100-204800 ISO|
|ISO Boost||50-102400 ISO||no Enhancement|
|Image Processor||DIGIC IV||PRIME III|
|DXO Sensor Quality (score)||74||101|
|DXO Color Depth (bits)||22.8||26.0|
|DXO Dynamic Range (EV)||12.0||14.7|
|DXO Low Light (ISO)||1320||4505|
|Screen Specs||Canon 1D Mark IV||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||Live View|
|Rear LCD Size||3.0 inch||3.2 inch|
|LCD Resolution||920k dots||1037k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 1D Mark IV||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||10 shutter flaps/s||3 shutter flaps/s|
|Shutter Life Expectancy||300 000 actuations||100 000 actuations|
|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||Dual card slots||Dual card slots|
|Connectivity Specs||Canon 1D Mark IV||Pentax 645Z|
|Studio Flash||PC Sync socket||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 1D Mark IV||Pentax 645Z|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Type||LP-E4 power pack||D-LI90 power pack|
|Battery Life (CIPA)||1500 shots per charge||650 shots per charge|
156 x 157 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||1230 g (43.4 oz)||1550 g (54.7 oz)|
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