Canon 1Ds Mark III vs Pentax K-3
The Canon EOS-1Ds Mark III and the Pentax K-3 are two digital cameras that were announced, respectively, in August 2007 and October 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds Mark III) and an APS-C (K-3) sensor. The Canon has a resolution of 21 megapixels, whereas the Pentax provides 24.1 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 1Ds Mark III||Pentax K-3|
|Digital single lens reflex||Digital single lens reflex|
|Canon EF mount lenses||Pentax K mount lenses|
|21 MP, Full Frame Sensor||24.1 MP, APS-C Sensor|
|no Video||1080/60i Video|
|ISO 100-1600 (50-3200)||ISO 100-51200|
|Optical viewfinder||Optical viewfinder|
|3.0" LCD, 230k dots||3.2" LCD, 1037k dots|
|Fixed screen (not touch-sensitive)||Fixed screen (not touch-sensitive)|
|5 shutter flaps per second||8.3 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Weathersealed body||Weathersealed body|
|1800 shots per battery charge||560 shots per battery charge|
|150 x 160 x 80 mm, 1385 g||131 x 100 x 77 mm, 800 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1Ds Mark III and the Pentax K-3? 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.
An illustration of the physical size and weight of the Canon 1Ds Mark III and the Pentax K-3 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 size dimensions are rounded to the nearest millimeter.
The K-3 can be obtained in two different colors (black, silver), while the 1Ds Mark III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax K-3 is considerably smaller (45 percent) than the Canon 1Ds Mark III. Moreover, the K-3 is substantially lighter (42 percent) than the 1Ds Mark III. 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 Mark III gets 1800 shots out of its LP-E4 battery, while the K-3 can take 560 images on a single charge of its D-LI90 power pack. As can be seen in the images above, the 1Ds Mark III has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the K-3, Pentax provides the D-BG5 vertical grip as an optional accessory (see here on eBay).
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|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|
|Pentax K-3«||5.2 in||3.9 in||3.0 in||28.2 oz||560||Y||Oct 2013||1,299||Pentax K-3|
|Canon 1D X Mark III« »||6.2 in||6.6 in||3.3 in||50.8 oz||2850||Y||Jan 2020||6,499||Canon 1D X Mark III|
|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 1D C« »||6.2 in||6.5 in||3.3 in||54.5 oz||1120||Y||Apr 2012||14,999||Canon 1D C|
|Canon 5D Mark III« »||6.0 in||4.6 in||3.0 in||33.5 oz||950||Y||Mar 2012||3,499||Canon 5D Mark III|
|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 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 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|
|Canon 1Ds« »||6.1 in||6.2 in||3.1 in||44.6 oz||600||Y||Sep 2002||8,999||Canon 1Ds|
|Nikon D3X« »||6.3 in||6.2 in||3.5 in||44.4 oz||4400||Y||Dec 2008||7,999||Nikon D3X|
|Pentax KP« »||5.2 in||4.0 in||3.0 in||24.8 oz||390||Y||Jan 2017||1,099||Pentax KP|
|Pentax K-70« »||5.0 in||3.7 in||2.9 in||24.3 oz||410||Y||Jun 2016||649||Pentax K-70|
|Pentax K-3 II« »||5.2 in||3.9 in||3.0 in||28.2 oz||720||Y||Apr 2015||1,099||Pentax K-3 II|
|Pentax K-5« »||5.2 in||3.8 in||2.9 in||26.8 oz||740||Y||Sep 2010||1,099||Pentax K-5|
|Sony A77« »||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,399||Sony A77|
|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 K-3 was launched at a markedly lower price (by 84 percent) than the 1Ds Mark III, 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.
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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 1Ds Mark III features a full frame sensor and the Pentax K-3 an APS-C sensor. The sensor area in the K-3 is 58 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
Despite having a smaller sensor, the K-3 offers a higher resolution of 24.1 megapixels, compared with 21 MP of the 1Ds Mark III. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.90μm versus 6.41μm for the 1Ds Mark III). However, it should be noted that the K-3 is much more recent (by 6 years and 1 month) than the 1Ds Mark III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the K-3 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Pentax K-3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the K-3 for good quality output (200 dots per inch) amounts to 30.1 x 20 inch or 76.4 x 50.8 cm, for very good quality (250 dpi) 24.1 x 16 inch or 61.1 x 40.6 cm, and for excellent quality (300 dpi) 20.1 x 13.3 inch or 50.9 x 33.9 cm. The corresponding values for the Canon 1Ds Mark III are 28.1 x 18.7 inch or 71.3 x 47.5 cm for good quality, 22.5 x 15 inch or 57.1 x 38 cm for very good quality, and 18.7 x 12.5 inch or 47.5 x 31.7 cm for excellent quality prints.
The Canon EOS-1Ds Mark III has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 50-3200. The corresponding ISO settings for the Pentax K-3 are ISO 100 to ISO 51200 (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"). The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon 1Ds Mark III||Full Frame||21.0||5616||3744||none||24.0||12.0||1663||80||Canon 1Ds Mark III|
|Pentax K-3||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80||Pentax K-3|
|Canon 1D X Mark III||Full Frame||20.0||5472||3648||4K/60p||..||..||..||..||Canon 1D X Mark III|
|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 1D C||Full Frame||17.9||5184||3456||4K/24p||..||..||..||..||Canon 1D C|
|Canon 5D Mark III||Full Frame||22.1||5760||3840||1080/30p||24.0||11.7||2293||81||Canon 5D Mark III|
|Canon 1D X||Full Frame||17.9||5184||3456||1080/30p||23.8||11.8||2786||82||Canon 1D X|
|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||none||22.7||11.7||1078||71||Canon 1D Mark III|
|Canon 1Ds Mark II||Full Frame||16.6||4992||3328||none||23.3||11.3||1480||74||Canon 1Ds Mark II|
|Canon 1Ds||Full Frame||11.0||4064||2704||none||21.8||11.0||954||63||Canon 1Ds|
|Nikon D3X||Full Frame||24.4||6048||4032||none||24.7||13.7||1992||88||Nikon D3X|
|Pentax KP||APS-C||24.1||6016||4000||1080/60i||..||..||..||..||Pentax KP|
|Pentax K-70||APS-C||24.0||6000||4000||1080/60i||..||..||..||..||Pentax K-70|
|Pentax K-3 II||APS-C||24.1||6016||4000||1080/60i||23.6||13.6||1106||80||Pentax K-3 II|
|Pentax K-5||APS-C||16.1||4928||3264||1080/25p||23.7||14.1||1162||82||Pentax K-5|
|Sony A77||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The K-3 indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the K-3 can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a range of features. The 1Ds Mark III and the K-3 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 viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the 1Ds Mark III has a higher magnification than the one of the K-3 (0.76x vs 0.63x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 1Ds Mark III and Pentax K-3 in connection with corresponding information for a sample of similar cameras.
|Canon 1Ds Mark III||optical||Y||3.0||230||fixed||n||1/8000s||5.0||n||n||Canon 1Ds Mark III|
|Pentax K-3||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||Y||Y||Pentax K-3|
|Canon 1D X Mark III||optical||Y||3.2||2100||fixed||Y||1/8000s||20.0||n||n||Canon 1D X Mark III|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Canon 1D C||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D C|
|Canon 5D Mark III||optical||Y||3.2||1040||fixed||n||1/8000s||6.0||n||n||Canon 5D Mark III|
|Canon 1D X||optical||Y||3.2||1040||fixed||n||1/8000s||14.0||n||n||Canon 1D X|
|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 1Ds Mark II||optical||Y||2.0||230||fixed||n||1/8000s||4.0||n||n||Canon 1Ds Mark II|
|Canon 1Ds||optical||Y||2.0||120||fixed||n||1/8000s||3.0||n||n||Canon 1Ds|
|Nikon D3X||optical||Y||3.0||922||fixed||n||1/8000s||5.0||n||n||Nikon D3X|
|Pentax KP||optical||n||3.0||921||tilting||n||1/6000s||7.0||Y||Y||Pentax KP|
|Pentax K-70||optical||n||3.0||921||swivel||n||1/6000s||6.0||Y||Y||Pentax K-70|
|Pentax K-3 II||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||n||Y||Pentax K-3 II|
|Pentax K-5||optical||Y||3.0||921||fixed||n||1/8000s||7.0||Y||Y||Pentax K-5|
|Sony A77||2359||Y||3.0||921||full-flex||n||1/8000s||12.0||Y||Y||Sony A77|
One feature that differentiates the K-3 and the 1Ds Mark III is in-body image stabilization (IBIS). The K-3 reduces the risk of handshake-induced blur with all attached lenses, while the 1Ds Mark III has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.
The Pentax K-3 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 Mark III writes its imaging data to Compact Flash or SDHC cards, while the K-3 uses SDXC cards. The K-3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 1Ds Mark III only has one slot. The K-3 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1Ds Mark III cannot take advantage of Ultra High Speed SD cards.
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 Mark III and Pentax K-3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 1Ds Mark III||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark III|
|Pentax K-3||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3|
|Canon 1D X Mark III||Y||mono||mono||Y||Y||mini||3.1||Y||-||Y||Canon 1D X Mark III|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Canon 1D C||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 1D C|
|Canon 5D Mark III||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Canon 5D Mark III|
|Canon 1D X||Y||mono||none||Y||-||mini||2.0||-||-||-||Canon 1D X|
|Canon 5D Mark II||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 5D Mark II|
|Canon 1D Mark III||Y||none||none||-||-||none||2.0||-||-||-||Canon 1D Mark III|
|Canon 1Ds Mark II||Y||none||none||-||-||none||2.0||-||-||-||Canon 1Ds Mark II|
|Canon 1Ds||Y||none||none||-||-||none||FW||-||-||-||Canon 1Ds|
|Nikon D3X||Y||none||none||-||-||mini||2.0||-||-||-||Nikon D3X|
|Pentax KP||Y||stereo||mono||Y||-||none||2.0||Y||-||-||Pentax KP|
|Pentax K-70||Y||stereo||mono||Y||-||mini||2.0||Y||-||-||Pentax K-70|
|Pentax K-3 II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3 II|
|Pentax K-5||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Pentax K-5|
|Sony A77||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.
Both the 1Ds Mark III and the K-3 have been discontinued, but can regularly be found used on eBay. The 1Ds Mark III was replaced by the Canon 1DX, while the K-3 was followed by the Pentax K-3 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 the Canon 1Ds Mark III better than the Pentax K-3 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS-1Ds Mark III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.63x).
- More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
- Longer lasting: Can take more shots (1800 versus 560) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in August 2007).
Reasons to prefer the Pentax K-3:
- More detail: Has more megapixels (24.1 vs 21MP), which boosts linear resolution by 7%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- More dynamic range: Captures a broader range of light and dark details (1.4 EV of extra DR).
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- 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 230k dots).
- Faster burst: Shoots at higher frequency (8.3 vs 5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (131x100mm vs 150x160mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 585g or 42 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More affordable: Was introduced into a lower priced category (84 percent cheaper at launch).
- More modern: Reflects 6 years and 1 month of technical progress since the 1Ds Mark III launch.
If the count of individual advantages (bullet points above) is taken as a guide, the K-3 is the clear winner of the contest (17 : 6 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 wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 Mark III and the Pentax K-3 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 says little about, for example, the shooting experience and imaging performance of the 1Ds Mark III and the K-3 in practical situations. 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 expert reviews 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.
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods 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 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 1200D vs Pentax K-3
- Canon 1Ds Mark III vs Olympus E-300
- Canon 1Ds Mark III vs Pentax 645D
- Canon G7 X vs Pentax K-3
- Canon M10 vs Pentax K-3
- Canon SX530 vs Pentax K-3 II
- Canon SX610 vs Pentax K-3
- Canon XC10 vs Pentax K-3 II
- Leica M Typ 240 vs Pentax K-3
- Panasonic GX1 vs Pentax K-3
- Pentax K-3 II vs Sony HX99
- Pentax K-3 vs Sony A6600
Specifications: Canon 1Ds Mark III vs Pentax K-3
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 Mark III||Pentax K-3|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Pentax K mount lenses|
|Launch Date||August 2007||October 2013|
|Launch Price||USD 7999||USD 1299|
|Sensor Specs||Canon 1Ds Mark III||Pentax K-3|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||36.0 x 24.0 mm||23.5 x 15.6 mm|
|Sensor Area||864 mm2||366.6 mm2|
|Sensor Diagonal||43.3 mm||28.2 mm|
|Sensor Resolution||21 Megapixels||24.1 Megapixels|
|Image Resolution||5616 x 3744 pixels||6016 x 4000 pixels|
|Pixel Pitch||6.41 μm||3.90 μm|
|Pixel Density||2.43 MP/cm2||6.56 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100-1600 ISO||100-51200 ISO|
|ISO Boost||50-3200 ISO||no Enhancement|
|Image Processor||DIGIC III (Dual)||PRIME III|
|DXO Sensor Quality (score)||80||80|
|DXO Color Depth (bits)||24.0||23.7|
|DXO Dynamic Range (EV)||12.0||13.4|
|DXO Low Light (ISO)||1663||1216|
|Screen Specs||Canon 1Ds Mark III||Pentax K-3|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||100%|
|Top-Level Screen||Control Panel||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.2 inch|
|LCD Resolution||230k dots||1037k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 1Ds Mark III||Pentax K-3|
|Autofocus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/8000/s|
|Continuous Shooting||5 shutter flaps/s||8.3 shutter flaps/s|
|Shutter Life Expectancy||300 000 actuations||200 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||CF or SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||no||UHS-I|
|Connectivity Specs||Canon 1Ds Mark III||Pentax K-3|
|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||Canon 1Ds Mark III||Pentax K-3|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||1800 shots per charge||560 shots per charge|
150 x 160 x 80 mm
(5.9 x 6.3 x 3.1 in)
131 x 100 x 77 mm
(5.2 x 3.9 x 3.0 in)
|Camera Weight||1385 g (48.9 oz)||800 g (28.2 oz)|
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