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Canon G15 vs Pentax 645Z

The Canon PowerShot G15 and the Pentax 645Z are two digital cameras that were announced, respectively, in September 2012 and April 2014. The G15 is a fixed lens compact, while the 645Z is a DSLR. The cameras are based on a 1/1.7-inch (G15) and a medium format (645Z) sensor. The Canon has a resolution of 12 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.

Headline Specifications
Canon G15   Pentax 645Z
Canon G15 Pentax 645Z
Fixed lens compact camera Digital single lens reflex
28-140mm f/1.8-2.8 Pentax 645 mount lenses
12 MP, 1/1.7" Sensor 51.1 MP, Medium Format Sensor
1080/24p Video 1080/60i Video
ISO 80-12800 ISO 100-204800
Optical viewfinder Optical viewfinder
3.0" LCD, 922k dots 3.2" LCD, 1037k dots
Fixed screen (not touch-sensitive) Tilting screen (not touch-sensitive)
2.1 shutter flaps per second 3 shutter flaps per second
Not weather sealedWeathersealed body
350 shots per battery charge650 shots per battery charge
107 x 76 x 40 mm, 352 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 PowerShot G15 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.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon G15 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.

Size Canon G15 vs Pentax 645Z
Compare G15 versus 645Z top
Comparison G15 or 645Z rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (124 percent) than the Canon G15. It is noteworthy in this context that the 645Z is splash and dust-proof, while the G15 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G15 has a lens built in, whereas the 645Z is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the G15 gets 350 shots out of its NB-10L battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack.

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.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G15» 4.2 in 3.0 in 1.6 in 12.4 oz 350 n Sep 2012 499- i Canon G15
 
Pentax 645Z« 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i i Pentax 645Z
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Canon SX60« » 5.0 in 3.7 in 4.5 in 22.9 oz 340 n Sep 2014 549- i Canon SX60
 
Canon G16« » 4.3 in 3.0 in 1.6 in 12.6 oz 360 n Aug 2013 549 i i Canon G16
 
Canon S120« » 3.9 in 2.3 in 1.1 in 7.7 oz 230 n Aug 2013 449- i Canon S120
 
Canon SX50« » 4.8 in 3.4 in 4.2 in 21.0 oz 315 n Sep 2012 429- i Canon SX50
 
Canon G12« » 4.4 in 3.0 in 1.9 in 14.1 oz 370 n Sep 2010 499- i Canon G12
 
Fujifilm X20« » 4.6 in 2.8 in 2.2 in 12.5 oz 270 n Jan 2013 599- i Fujifilm X20
 
Fujifilm X10« » 4.6 in 2.8 in 2.2 in 12.3 oz 270 n Sep 2011 599- i Fujifilm X10
 
Hasselblad X1D« » 5.9 in 3.9 in 2.8 in 25.6 oz .. Y Jun 2016 8,995- i Hasselblad X1D
 
Leica SL« » 5.8 in 4.1 in 1.5 in 29.9 oz 400 Y Oct 2015 7,450 i i Leica SL
 
Nikon P7800« » 4.7 in 3.1 in 2.0 in 14.1 oz 350 n Sep 2013 549- i Nikon P7800
 
Panasonic LX7« » 4.4 in 2.7 in 1.8 in 10.5 oz 330 n Jul 2012 499- i Panasonic LX7
 
Panasonic FZ150« » 4.9 in 3.2 in 3.6 in 18.6 oz 410 n Aug 2011 499- i Panasonic FZ150
 
Pentax 645D« » 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995- i 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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The G15 was launched at a lower price than the 645Z, despite having a lens built in. 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.

 

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 G15 features a 1/1.7-inch sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 3242 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 4.6 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

In terms of underlying technology, both cameras are build around CMOS sensors.

Canon G15 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the G15 (12MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 1.89μm for the G15) due to its larger sensor. Moreover, the 645Z is a somewhat more recent model (by 1 year and 6 months) than the G15, and its sensor might have benefitted from technological advances during this time that further 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 G15 are 20 x 15 inch or 50.8 x 38.1 cm for good quality, 16 x 12 inch or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inch or 33.9 x 25.4 cm for excellent quality prints.

The Canon PowerShot G15 has a native sensitivity range from ISO 80 to ISO 12800. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

G15 versus 645Z MP

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 G15 (overall score 55 points higher). The advantage is based on 6.1 bits higher color depth, 3.2 EV in additional dynamic range, and 4.8 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Canon G15» 1/1.7 12.0 4000 30001080/24p19.911.516546Canon G15
 
Pentax 645Z« Medium Format 51.1 8256 61921080/60i26.014.74505101Pentax 645Z
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R« » Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Canon SX60« » 1/2.3 14.2 4608 30721080/60p19.210.812739Canon SX60
 
Canon G16« » 1/1.7 12.0 4000 30001080/60p21.011.723054Canon G16
 
Canon S120« » 1/1.7 12.0 4000 30001080/60p21.311.924656Canon S120
 
Canon SX50« » 1/2.3 12.0 4000 30001080/24p20.311.217947Canon SX50
 
Canon G12« » 1/1.7 10.0 3648 2736720/24p20.411.216147Canon G12
 
Fujifilm X20« » 2/3 12.0 4000 30001080/60p----Fujifilm X20
 
Fujifilm X10« » 2/3 12.0 4000 30001080/30p20.511.324550Fujifilm X10
 
Hasselblad X1D« » Medium Format 51.3 8272 62001080/25p26.214.84489102Hasselblad X1D
 
Leica SL« » Full Frame 24.0 6000 40004K/30p25.013.4182188Leica SL
 
Nikon P7800« » 1/1.7 12.0 4000 30001080/30p21.211.720054Nikon P7800
 
Panasonic LX7« » 1/1.7 10.0 3648 27361080/60p20.711.714750Panasonic LX7
 
Panasonic FZ150« » 1/2.3 12.0 4000 30001080/60p19.410.913240Panasonic FZ150
 
Pentax 645D« » Medium Format 39.5 7264 5440-24.612.6126282Pentax 645D

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the 645Z provides a faster frame rate than the G15. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/24p.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The G15 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 table below summarizes some of the other core capabilities of the Canon G15 and Pentax 645Z in connection with corresponding information for a sample of similar cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Canon G15»optical n 3.0 922 fixed n 1/4000s 2.1 Y Y Canon G15
 
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
 
Canon SX60« »922 n 3.0 922 swivel n 1/2000s 6.4 Y Y Canon SX60
 
Canon G16« »optical n 3.0 922 fixed n 1/4000s 2.2 Y Y Canon G16
 
Canon S120« »- n 3.0 922 fixed Y 1/2000s 12.1 Y Y Canon S120
 
Canon SX50« »202 n 3.0 461 swivel n 1/2000s 2.2 Y Y Canon SX50
 
Canon G12« »optical n 2.8 461 swivel n 1/4000s 1.1 Y Y Canon G12
 
Fujifilm X20« »optical n 2.8 460 fixed n 1/4000s 12.0 Y Y Fujifilm X20
 
Fujifilm X10« »optical n 2.8 460 fixed n 1/4000s 10.0 Y Y Fujifilm X10
 
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 P7800« »921 n 3.0 921 swivel n 1/4000s 8.0 Y Y Nikon P7800
 
Panasonic LX7« »- n 3.0 920 fixed n 1/4000s 11.0 Y Y Panasonic LX7
 
Panasonic FZ150« »202 n 3.0 460 swivel n 1/2000s 12.0 Y Y Panasonic FZ150
 
Pentax 645D« »optical Y 3.0 921 fixed n 1/4000s 1.1 n n Pentax 645D

One difference between the cameras concerns the presence of an on-board flash. The G15 has one, while the 645Z does not. While the built-in flash of the G15 is not very powerful, it can at times be useful as a fill-in light.

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.

Concerning the storage of imaging data, both the G15 and the 645Z write their files to SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the G15 only has one slot. The 645Z supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the G15 cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon PowerShot G15 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon G15»Ystereomono--mini2.0---Canon G15
 
Pentax 645Z«YstereomonoY-mini3.0---Pentax 645Z
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS R« »YmonomonoY-mini3.0---Canon 5DS R
 
Canon SX60« »YstereomonoY-mini2.0YY-Canon SX60
 
Canon G16« »Ystereomono--mini2.0Y--Canon G16
 
Canon S120« »-stereomono--mini2.0Y--Canon S120
 
Canon SX50« »Ystereomono--mini2.0---Canon SX50
 
Canon G12« »Ystereomono--mini2.0---Canon G12
 
Fujifilm X20« »Ystereomono--micro2.0---Fujifilm X20
 
Fujifilm X10« »Ystereomono--mini2.0---Fujifilm X10
 
Hasselblad X1D« »YstereomonoYYmini3.0Y--Hasselblad X1D
 
Leica SL« »YstereomonoYYfull3.0Y--Leica SL
 
Nikon P7800« »YstereomonoY-mini2.0---Nikon P7800
 
Panasonic LX7« »Ystereomono--mini2.0---Panasonic LX7
 
Panasonic FZ150« »Ystereo---mini2.0---Panasonic FZ150
 
Pentax 645D« »Ystereo----2.0---Pentax 645D

It is notable that the 645Z has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The G15 does not feature such a mic input.

Studio photographers will appreciate that the Pentax 645Z (unlike the G15) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the G15 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the G15 was succeeded by the Canon G16. 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.


Review summary

So how do things add up? Is the Canon G15 better than the Pentax 645Z or vice versa? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon PowerShot G15:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Ready to shoot: Comes with a built-in lens, while the 645Z requires a separate lens.
  • More compact: Is smaller (107x76mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645Z).
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been on the market for longer (launched in September 2012).

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Reasons to prefer the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 12MP), which boosts linear resolution by 106%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (55 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (6.1 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (3.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (4.8 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60i versus 1080/24p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • 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 922k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster burst: Shoots at higher frequency (3 vs 2.1 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (650 versus 350) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • 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 modern: Was introduced somewhat (1 year and 6 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the 645Z is the clear winner of the contest (22 : 8 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.

G15 08:22 645Z

How about other alternatives? Do the specifications of the Canon G15 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best Travel-Zoom Camera and Best DSLR Camera listings 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 G15 and the 645Z 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.

Expert reviews

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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Canon G15»+76/1004.5/54.5/54.5/5 Sep 2012 499- i Canon G15
 
Pentax 645Z«--4.5/55/55/5 Apr 2014 8,499 i i Pentax 645Z
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« »+83/1005/55/54.5/5 Feb 2015 3,699 i i Canon 5DS R
 
Canon SX60« »+ +75/1004/5-4.5/5 Sep 2014 549- i Canon SX60
 
Canon G16« »+-4.5/54.5/54.5/5 Aug 2013 549 i i Canon G16
 
Canon S120« »+ +-4.5/5o4.5/5 Aug 2013 449- i Canon S120
 
Canon SX50« »+ +72/1004.5/5-4.5/5 Sep 2012 429- i Canon SX50
 
Canon G12« »+73/1004.5/54.5/54.5/5 Sep 2010 499- i Canon G12
 
Fujifilm X20« »+ +77/1004.5/5-5/5 Jan 2013 599- i Fujifilm X20
 
Fujifilm X10« »-76/1004/53.5/54.5/5 Sep 2011 599- i Fujifilm X10
 
Hasselblad X1D« »o81/100--4/5 Jun 2016 8,995- i Hasselblad X1D
 
Leica SL« »-84/1004.5/54/54/5 Oct 2015 7,450 i i Leica SL
 
Nikon P7800« »--4/53.5/54.5/5 Sep 2013 549- i Nikon P7800
 
Panasonic LX7« »+ +75/1004/55/54.5/5 Jul 2012 499- i Panasonic LX7
 
Panasonic FZ150« »+ +76/1004/55/54.5/5 Aug 2011 499- i Panasonic FZ150
 
Pentax 645D« »---4.5/5- Mar 2010 9,995- i 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. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon G15:
Check Ebay offers
Pentax 645Z:
Check Amazon price

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.

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    Specifications: Canon G15 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 Specifications
    Camera Model Canon G15 Pentax 645Z
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 28-140mm f/1.8-2.8 Pentax 645 mount lenses
    Launch Date September 2012 April 2014
    Launch Price USD 499 USD 8499
    Sensor Specs Canon G15 Pentax 645Z
    Sensor Technology CMOS CMOS
    Sensor Format 1/1.7" Sensor Medium Format Sensor
    Sensor Size 7.6 x 5.7 mm 43.8 x 32.8 mm
    Sensor Area 43.32 mm2 1436.64 mm2
    Sensor Diagonal 9.5 mm 54.7 mm
    Crop Factor 4.6x 0.79x
    Sensor Resolution 12 Megapixels 51.1 Megapixels
    Image Resolution 4000 x 3000 pixels 8256 x 6192 pixels
    Pixel Pitch 1.89 μm 5.30 μm
    Pixel Density 27.70 MP/cm2 3.56 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/24p Video 1080/60i Video
    ISO Setting 80-12800 ISO 100-204800 ISO
    Image Processor DIGIC 5 PRIME III
    DXO Sensor Quality (score) 46 101
    DXO Color Depth (bits) 19.9 26.0
    DXO Dynamic Range (EV) 11.5 14.7
    DXO Low Light (ISO) 165 4505
    Screen Specs Canon G15 Pentax 645Z
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 80% 98%
    Viewfinder Magnification ..x 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.2 inch
    LCD Resolution 922k dots 1037k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Canon G15 Pentax 645Z
    Autofocus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidNo Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/4000/s
    Continuous Shooting 2.1 shutter flaps/s 3 shutter flaps/s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no UHS-I
    Connectivity Specs Canon G15 Pentax 645Z
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support no Wifi no Wifi
    Body Specs Canon G15 Pentax 645Z
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type NB-10L D-LI90
    Battery Life (CIPA)350 shots per charge650 shots per charge
    Body Dimensions 107 x 76 x 40 mm
    (4.2 x 3.0 x 1.6 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 352 g (12.4 oz) 1550 g (54.7 oz)

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