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Canon 40D vs Pentax MX-1

The Canon EOS 40D and the Pentax MX-1 are two digital cameras that were officially introduced, respectively, in August 2007 and January 2013. The 40D is a DSLR, while the MX-1 is a fixed lens compact. The cameras are based on an APS-C (40D) and a 1/1.7-inch (MX-1) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Pentax provides 12 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 40D versus Pentax MX-1
Canon 40D Pentax MX-1
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 28-112mm f/1.8-2.5
10.1 MP, APS-C Sensor 12 MP, 1/1.7" Sensor
no Video 1080/30p Video
ISO 100-1,600 (100 - 3,200) ISO 100-12,800
Optical viewfinder No viewfinder, LCD framing
3.0 LCD, 230k dots 3.0 LCD, 920k dots
Fixed screen (not touch-sensitive) Tilting screen (not touch-sensitive)
6.5 shutter flaps per second 1 shutter flaps per second
Lens stabilization onlyIn-body stabilization
750 shots per battery charge290 shots per battery charge
146 x 108 x 74 mm, 822 g 122 x 61 x 51 mm, 391 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D and the Pentax MX-1? 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 40D and the Pentax MX-1. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.

Size Canon 40D vs Pentax MX-1
Compare 40D versus MX-1 top
Comparison 40D or MX-1 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax MX-1 is considerably smaller (53 percent) than the Canon 40D. In this context, it is worth noting that neither the 40D nor the MX-1 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the MX-1 has a lens built in, whereas the 40D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 40D and their specifications in the Canon EF Lens Catalog.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 1,299i
2.
 
Pentax MX-1 122 mm 61 mm 51 mm 391 g 290 n Jan 2013 499i
3.
 
Canon G16 109 mm 76 mm 40 mm 356 g 360 n Aug 2013 549 i
4.
 
Canon G15 107 mm 76 mm 40 mm 352 g 350 n Sep 2012 499i
5.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449i
6.
 
Canon 60D 145 mm 106 mm 79 mm 755 g 1100 Y Aug 2010 1,399i
7.
 
Canon 50D 146 mm 108 mm 74 mm 822 g 800 Y Aug 2008 1,299i
8.
 
Canon XS 126 mm 98 mm 65 mm 502 g 500 n Jun 2008 449i
9.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799i
10.
 
Canon 30D 144 mm 106 mm 74 mm 785 g 750 n Feb 2006 1,399i
11.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799i
12.
 
Canon 20D 144 mm 106 mm 72 mm 770 g 700 n Aug 2004 1,499i
13.
 
Canon 10D 150 mm 107 mm 75 mm 850 g 500 n Feb 2003 1,999i
14.
 
Nikon P7800 119 mm 78 mm 50 mm 399 g 350 n Sep 2013 549i
15.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299i
16.
 
Olympus XZ-2 113 mm 65 mm 48 mm 346 g 340 n Sep 2012 599i
17.
 
Panasonic LF1 103 mm 62 mm 28 mm 192 g 250 n Apr 2013 499 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. 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 MX-1 was launched at a lower price than the 40D, 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.

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Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 40D features an APS-C sensor and the Pentax MX-1 a 1/1.7-inch sensor. The sensor area in the MX-1 is 87 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 4.5. The sensor in the 40D has a native 3:2 aspect ratio, while the one in the MX-1 offers a 4:3 aspect.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Canon 40D and Pentax MX-1 sensor measures

Despite having a smaller sensor, the MX-1 offers a higher resolution of 12 megapixels, compared with 10.1 MP of the 40D. 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 1.89μm versus 5.73μm for the 40D). However, it should be noted that the MX-1 is much more recent (by 5 years and 4 months) than the 40D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Pentax MX-1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the MX-1 for good quality output (200 dots per inch) amounts to 20 x 15 inches or 50.8 x 38.1 cm, for very good quality (250 dpi) 16 x 12 inches or 40.6 x 30.5 cm, and for excellent quality (300 dpi) 13.3 x 10 inches or 33.9 x 25.4 cm. The corresponding values for the Canon 40D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.

The Canon EOS 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Pentax MX-1 are ISO 100 to ISO 12800 (no boost).

40D versus MX-1 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. Of the two cameras under review, the 40D provides substantially higher image quality than the MX-1, with an overall score that is 15 points higher. This advantage is based on 1.7 bits higher color depth, 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
2.
 
Pentax MX-1 1/1.7 12.0 4000 30001080/30p20.411.320849
3.
 
Canon G16 1/1.7 12.0 4000 30001080/60p21.011.723054
4.
 
Canon G15 1/1.7 12.0 4000 30001080/24p19.911.516546
5.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
6.
 
Canon 60D APS-C 17.9 5184 34561080/30p22.211.581366
7.
 
Canon 50D APS-C 15.1 4752 3168none21.811.469663
8.
 
Canon XS APS-C 10.1 3888 2592none........
9.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
10.
 
Canon 30D APS-C 8.2 3504 2336none21.510.873659
11.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
12.
 
Canon 20D APS-C 8.2 3504 2336none21.911.072162
13.
 
Canon 10D APS-C 6.3 3072 2048none21.110.957157
14.
 
Nikon P7800 1/1.7 12.0 4000 30001080/30p21.211.720054
15.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
16.
 
Olympus XZ-2 1/1.7 11.8 3968 29761080/30p20.411.321649
17.
 
Panasonic LF1 1/1.7 12.0 4000 30001080/60i20.811.621152

Many modern cameras cannot only take still pictures, but also record videos. The MX-1 indeed provides for movie recording, while the 40D does not. The highest resolution format that the MX-1 can use is 1080/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 40D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the MX-1 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon 40D, the Pentax MX-1, and comparable cameras.

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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
1.
 
Canon 40Doptical Y 3.0 230 fixed n 1/8000s 6.5 Y n
2.
 
Pentax MX-1none n 3.0 920 tilting n 1/8000s 1.0 Y Y
3.
 
Canon G16optical n 3.0 922 fixed n 1/4000s 2.2 Y Y
4.
 
Canon G15optical n 3.0 922 fixed n 1/4000s 2.1 Y Y
5.
 
Canon T3optical n 2.7 230 fixed n 1/4000s 3.0 Y n
6.
 
Canon 60Doptical Y 3.0 1040 swivel n 1/8000s 5.3 Y n
7.
 
Canon 50Doptical Y 3.0 920 fixed n 1/8000s 6.3 Y n
8.
 
Canon XSoptical n 2.5 230 fixed n 1/4000s 3.0 Y n
9.
 
Canon XSioptical n 3.0 230 fixed n 1/4000s 3.5 Y n
10.
 
Canon 30Doptical Y 2.5 230 fixed n 1/8000s 5.0 Y n
11.
 
Canon XTioptical n 2.5 230 fixed n 1/4000s 3.0 Y n
12.
 
Canon 20Doptical Y 1.8 118 fixed n 1/8000s 5.0 Y n
13.
 
Canon 10Doptical Y 1.8 118 fixed n 1/4000s 3.0 Y n
14.
 
Nikon P7800921 n 3.0 921 swivel n 1/4000s 8.0 Y Y
15.
 
Nikon D90optical Y 3.0 920 fixed n 1/4000s 4.5 Y n
16.
 
Olympus XZ-2optional n 3.0 920 tilting Y 1/2000s 5.0 Y Y
17.
 
Panasonic LF1200 n 3.0 920 fixed n 1/4000s 10.0 Y Y

One feature that is present on the 40D, but is missing on the MX-1 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The 40D writes its imaging data to Compact Flash cards, while the MX-1 uses SDXC cards.

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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 EOS 40D and Pentax MX-1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 40DY-----2.0---
2.
 
Pentax MX-1-stereomono--mini2.0---
3.
 
Canon G16Ystereomono--mini2.0Y--
4.
 
Canon G15Ystereomono--mini2.0---
5.
 
Canon T3Ystereomono--mini2.0---
6.
 
Canon 60DYmonomonoY-mini2.0---
7.
 
Canon 50DY----mini2.0---
8.
 
Canon XSY-----2.0---
9.
 
Canon XSiY----mini2.0---
10.
 
Canon 30DY-----2.0---
11.
 
Canon XTiY-----2.0---
12.
 
Canon 20DY-----1.1---
13.
 
Canon 10DY-----1.1---
14.
 
Nikon P7800YstereomonoY-mini2.0---
15.
 
Nikon D90Ymonomono--mini2.0---
16.
 
Olympus XZ-2Ystereomono--mini2.0---
17.
 
Panasonic LF1-stereomono--mini2.0YY-

It is notable that the 40D has a hotshoe, while the MX-1 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Studio photographers will appreciate that the Canon 40D (unlike the MX-1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 40D and the MX-1 have been discontinued, but can regularly be found used on eBay. The 40D was replaced by the Canon 50D, while the MX-1 does not have a direct successor. 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.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 40D or the Pentax MX-1 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the Canon EOS 40D:

  • Better image quality: Scores substantially higher (15 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
  • Better low-light sensitivity: Requires less light for good images (1.8 stops ISO advantage).
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster burst: Shoots at higher frequency (6.5 vs 1 flaps/sec) to capture the decisive moment.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Longer lasting: Can take more shots (750 versus 290) on a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • More heavily discounted: Has been available for much longer (launched in August 2007).

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Reasons to prefer the Pentax MX-1:

  • More detail: Has more megapixels (12 vs 10.1MP), which boosts linear resolution by 7%.
  • Broader imaging potential: Can capture not only stills but also 1080/30p video.
  • More detailed LCD: Has a higher resolution rear screen (920k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Ready to shoot: Comes with an integrated lens, while the 40D requires a separate lens.
  • More compact: Is smaller (122x61mm vs 146x108mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the 40D).
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 5 years and 4 months of technical progress since the 40D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the 40D comes out slightly ahead of the MX-1 (11 : 10 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional 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.

40D 11:10 MX-1

How about other alternatives? Do the specifications of the Canon 40D and the Pentax MX-1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom Camera listings 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 40D or the MX-1 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.

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 (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 40D..+ ++ +4.5/54.5/5 Aug 2007 1,299i
2.
 
Pentax MX-13/5..74/1004/54/5 Jan 2013 499i
3.
 
Canon G164/5+..4.5/54.5/5 Aug 2013 549 i
4.
 
Canon G154/5+76/1004.5/54.5/5 Sep 2012 499i
5.
 
Canon T3..80/10069/1004/54.5/5 Feb 2011 449i
6.
 
Canon 60D5/5+79/1004/54.5/5 Aug 2010 1,399i
7.
 
Canon 50D..+ ++ +4.5/54.5/5 Aug 2008 1,299i
8.
 
Canon XS..82/100+ +3.5/54.5/5 Jun 2008 449i
9.
 
Canon XSi..+ ++ +4/54.5/5 Jan 2008 799i
10.
 
Canon 30D..+ ++ +o.. Feb 2006 1,399i
11.
 
Canon XTi..+ ++ +o4/5 Aug 2006 799i
12.
 
Canon 20D....+ +.... Aug 2004 1,499i
13.
 
Canon 10D....+ +.... Feb 2003 1,999i
14.
 
Nikon P78003/5....4/54.5/5 Sep 2013 549i
15.
 
Nikon D90..+ ++ +4/54.5/5 Aug 2008 1,299i
16.
 
Olympus XZ-24/5+..4.5/54.5/5 Sep 2012 599i
17.
 
Panasonic LF13/5+..4/54.5/5 Apr 2013 499 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon 40D:
Check Ebay offers
Pentax MX-1:
Check Ebay offers

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.

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    Specifications: Canon 40D vs Pentax MX-1

    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 40D Pentax MX-1
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Canon EF mount lenses 28-112mm f/1.8-2.5
    Launch Date August 2007 January 2013
    Launch Price USD 1,299 USD 499
    Sensor Specs Canon 40D Pentax MX-1
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor 1/1.7" Sensor
    Sensor Size 22.3 x 14.9 mm 7.6 x 5.7 mm
    Sensor Area 332.27 mm2 43.32 mm2
    Sensor Diagonal 26.8 mm 9.5 mm
    Crop Factor 1.6x 4.5x
    Sensor Resolution 10.1 Megapixels 12 Megapixels
    Image Resolution 3888 x 2592 pixels 4000 x 3000 pixels
    Pixel Pitch 5.73 μm 1.89 μm
    Pixel Density 3.03 MP/cm2 27.70 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/30p Video
    ISO Setting 100 - 1,600 ISO 100 - 12,800 ISO
    ISO Boost 100 - 3,200 ISO no Enhancement
    DXO Sensor Quality (score) 64 49
    DXO Color Depth (bits) 22.1 20.4
    DXO Dynamic Range (EV) 11.3 11.3
    DXO Low Light (ISO) 703 208
    Screen Specs Canon 40D Pentax MX-1
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.59x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 920k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Canon 40D Pentax MX-1
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 6.5 shutter flaps/s 1 shutter flaps/s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon 40D Pentax MX-1
    External Flash Hotshoe no Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI mini HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 40D Pentax MX-1
    Battery Type BP-511A D-LI106
    Battery Life (CIPA)750 shots per charge290 shots per charge
    Body Dimensions 146 x 108 x 74 mm
    (5.7 x 4.3 x 2.9 in)
    122 x 61 x 51 mm
    (4.8 x 2.4 x 2.0 in)
    Camera Weight 822 g (29.0 oz) 391 g (13.8 oz)

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