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Canon 40D vs Pentax 645D

The Canon EOS 40D and the Pentax 645D are two digital cameras that were announced, respectively, in August 2007 and March 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (40D) and a medium format (645D) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Pentax provides 39.5 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 645D
Canon 40D   Pentax 645D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Pentax 645 mount lenses
10.1 MP, APS-C Sensor 39.5 MP, Medium Format Sensor
no Video no Video
ISO 100-1,600 (100 - 3,200) ISO 100-1,600
Optical viewfinder Optical viewfinder
3.0 LCD, 230k dots 3.0 LCD, 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
6.5 shutter flaps per second 1.1 shutter flaps per second
not weather sealedWeathersealed body
750 shots per battery charge800 shots per battery charge
146 x 108 x 74 mm, 822 g 156 x 117 x 119 mm, 1480 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D and the Pentax 645D? 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 645D. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon 40D vs Pentax 645D
Compare 40D versus 645D top
Comparison 40D or 645D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is notably larger (16 percent) than the Canon 40D. Moreover, the 645D is substantially heavier (80 percent) than the 40D. It is noteworthy in this context that the 645D is splash and dust-proof, while the 40D does not feature any corresponding weather-sealing.

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 40D gets 750 shots out of its BP-511A battery, while the 645D can take 800 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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 645D 156 mm 117 mm 119 mm 1480 g 800 Y Mar 2010 9,995i
3.
 
Canon 70D 139 mm 104 mm 79 mm 755 g 920 Y Jul 2013 1,199i
4.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799i
5.
 
Canon 1100D 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 1D Mark IV 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999i
8.
 
Canon 50D 146 mm 108 mm 74 mm 822 g 800 Y Aug 2008 1,299i
9.
 
Canon 450D 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 400D 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.
 
Leica S Typ 006 160 mm 120 mm 80 mm 1260 g .. Y Sep 2012 21,950i
14.
 
Nikon D3S 160 mm 157 mm 88 mm 1240 g 4200 Y Oct 2009 5,199i
15.
 
Nikon D90 132 mm 103 mm 77 mm 703 g 850 n Aug 2008 1,299i
16.
 
Olympus E-30 142 mm 108 mm 75 mm 701 g 750 n Nov 2008 1,299i
17.
 
Pentax 645Z 156 mm 117 mm 123 mm 1550 g 650 Y Apr 2014 8,499 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or 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 40D was launched at a markedly lower price (by 87 percent) than the 645D, 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.

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 tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon 40D features an APS-C sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 337 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 0.79. The sensor in the 40D has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Canon 40D and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the 40D (10.1MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 5.73μm for the 40D) due to its larger sensor. Moreover, the 645D is a much more recent model (by 2 years and 6 months) than the 40D, and its sensor will 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 645D has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 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 645D are ISO 100 to ISO 1600 (no boost).

40D versus 645D MP

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 645D offers substantially better image quality than the 40D (overall score 18 points higher). The advantage is based on 2.5 bits higher color depth, 1.3 EV in additional dynamic range, and 0.8 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.

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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 645D Medium Format 39.5 7264 5440none24.612.6126282
3.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
4.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
5.
 
Canon 1100D APS-C 12.2 4272 2848720/30p21.911.075562
6.
 
Canon 60D APS-C 17.9 5184 34561080/30p22.211.581366
7.
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074
8.
 
Canon 50D APS-C 15.1 4752 3168none21.811.469663
9.
 
Canon 450D APS-C 12.2 4272 2848none21.910.869261
10.
 
Canon 30D APS-C 8.2 3504 2336none21.510.873659
11.
 
Canon 400D APS-C 10.1 3888 2592none22.111.066462
12.
 
Canon 20D APS-C 8.2 3504 2336none21.911.072162
13.
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476
14.
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382
15.
 
Nikon D90 APS-C 12.2 4288 2848720/24p22.712.597773
16.
 
Olympus E-30 Four Thirds 12.2 4032 3024none21.310.453055
17.
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101
The 40D offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The 645D lacks this capability. Both cameras are still-image focused and cannot record videos.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The 40D and the 645D 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 645D offers a wider field of view (98%) than the one in the 40D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 645D has a higher magnification (0.78x vs 0.59x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 40D, the Pentax 645D, and comparable cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/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 Y3.0 / 230 fixed n 1/8000s 6.5 Y n
2.
 
Pentax 645Doptical Y3.0 / 921 fixed n 1/4000s 1.1 n n
3.
 
Canon 70Doptical Y3.0 / 1040 swivel Y 1/8000s 7.0 Y n
4.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0 n n
5.
 
Canon 1100Doptical n2.7 / 230 fixed n 1/4000s 3.0 Y n
6.
 
Canon 60Doptical Y3.0 / 1040 swivel n 1/8000s 5.3 Y n
7.
 
Canon 1D Mark IVoptical Y3.0 / 920 fixed n 1/8000s 10.0 n n
8.
 
Canon 50Doptical Y3.0 / 920 fixed n 1/8000s 6.3 Y n
9.
 
Canon 450Doptical n3.0 / 230 fixed n 1/4000s 3.5 Y n
10.
 
Canon 30Doptical Y2.5 / 230 fixed n 1/8000s 5.0 Y n
11.
 
Canon 400Doptical n2.5 / 230 fixed n 1/4000s 3.0 Y n
12.
 
Canon 20Doptical Y1.8 / 118 fixed n 1/8000s 5.0 Y n
13.
 
Leica S Typ 006optical Y3.0 / 922 fixed n 1/4000s 1.5 n n
14.
 
Nikon D3Soptical Y3.0 / 921 fixed n 1/8000s 11.0 n n
15.
 
Nikon D90optical Y3.0 / 920 fixed n 1/4000s 4.5 Y n
16.
 
Olympus E-30optical Y2.7 / 230 swivel n 1/8000s 5.0 Y Y
17.
 
Pentax 645Zoptical Y3.2 / 1037 tilting n 1/4000s 3.0 n n

One difference between the cameras concerns the presence of an on-board flash. The 40D has one, while the 645D does not. While the built-in flash of the 40D is not very powerful, it can at times be useful as a fill-in light.

The Pentax 645D 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 40D writes its imaging data to Compact Flash cards, while the 645D uses SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the 40D only has one slot.

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 645D 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
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 40DY- / ----2.0---
2.
 
Pentax 645DYstereo / ----2.0---
3.
 
Canon 70DYstereo / monoY-mini2.0Y--
4.
 
Canon 1D XYmono / -Y-mini2.0---
5.
 
Canon 1100DYstereo / mono--mini2.0---
6.
 
Canon 60DYmono / monoY-mini2.0---
7.
 
Canon 1D Mark IVYstereo / -Y-mini2.0---
8.
 
Canon 50DY- / ---mini2.0---
9.
 
Canon 450DY- / ---mini2.0---
10.
 
Canon 30DY- / ----2.0---
11.
 
Canon 400DY- / ----2.0---
12.
 
Canon 20DY- / ----1.1---
13.
 
Leica S Typ 006Y- / ---mini2.0---
14.
 
Nikon D3SYstereo / ---mini2.0---
15.
 
Nikon D90Ymono / mono--mini2.0---
16.
 
Olympus E-30Y- / ----2.0---
17.
 
Pentax 645ZYstereo / monoY-mini3.0---

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the 40D and the 645D have been discontinued, but can regularly be found used on eBay. The 40D was replaced by the Canon 50D, while the 645D was followed by the Pentax 645Z. 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 40D better than the Pentax 645D or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon EOS 40D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (6.5 vs 1.1 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (146x108mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 658g or 44 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (87 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2007).

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Reasons to prefer the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 10.1MP), which boosts linear resolution by 94%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (18 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.3 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.8 stops ISO advantage).
  • More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.59x).
  • More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More modern: Reflects 2 years and 6 months of technical progress since the 40D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (13 : 8 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 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.

40D 08:13 645D

How about other alternatives? Do the specifications of the Canon 40D and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 40D and the 645D 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

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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 
 DCW 
 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 645D5/5.......... Mar 2010 9,995i
3.
 
Canon 70D5/5+ +..83/1004.5/55/5 Jul 2013 1,199i
4.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799i
5.
 
Canon 1100D..80/100..69/1004/54.5/5 Feb 2011 449i
6.
 
Canon 60D5/5+..79/1004/54.5/5 Aug 2010 1,399i
7.
 
Canon 1D Mark IV5/5....89/100.... Oct 2009 4,999i
8.
 
Canon 50D..+ +..+ +4.5/54.5/5 Aug 2008 1,299i
9.
 
Canon 450D..+ +..+ +4/54.5/5 Jan 2008 799i
10.
 
Canon 30D..+ +..+ +o.. Feb 2006 1,399i
11.
 
Canon 400D..+ +..+ +o4/5 Aug 2006 799i
12.
 
Canon 20D......+ +.... Aug 2004 1,499i
13.
 
Leica S Typ 006............ Sep 2012 21,950i
14.
 
Nikon D3S5/5....89/1004.5/55/5 Oct 2009 5,199i
15.
 
Nikon D90..+ +..+ +4/54.5/5 Aug 2008 1,299i
16.
 
Olympus E-30......71/1004.5/54/5 Nov 2008 1,299i
17.
 
Pentax 645Z5/5......4.5/55/5 Apr 2014 8,499 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

Canon 40D:
Check Ebay offers
Pentax 645D:
Check Ebay offers

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 40D vs Pentax 645D

    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 645D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Pentax 645 mount lenses
    Launch Date August 2007 March 2010
    Launch Price USD 1,299 USD 9,995
    Sensor Specs Canon 40D Pentax 645D
    Sensor Technology CMOS CCD
    Sensor Format APS-C Sensor Medium Format Sensor
    Sensor Size 22.3 x 14.9 mm 44.0 x 33.0 mm
    Sensor Area 332.27 mm2 1452 mm2
    Sensor Diagonal 26.8 mm 55 mm
    Crop Factor 1.6x 0.79x
    Sensor Resolution 10.1 Megapixels 39.5 Megapixels
    Image Resolution 3888 x 2592 pixels 7264 x 5440 pixels
    Pixel Pitch 5.73 μm 6.06 μm
    Pixel Density 3.03 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video no Video
    ISO Setting 100 - 1,600 ISO 100 - 1,600 ISO
    ISO Boost 100 - 3,200 ISO no Enhancement
    Image Processor DIGIC 3 PRIME II
    DXO Sensor Quality (score) 64 82
    DXO Color Depth (bits) 22.1 24.6
    DXO Dynamic Range (EV) 11.3 12.6
    DXO Low Light (ISO) 703 1262
    Screen Specs Canon 40D Pentax 645D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 98%
    Viewfinder Magnification 0.59x 0.78x
    Top-Level Screen Control Panel Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 40D Pentax 645D
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6.5 shutter flaps/s 1.1 shutter flaps/s
    Shutter Life Expectancy100 000 actuations50 000 actuations
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Canon 40D Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon 40D Pentax 645D
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type BP-511A D-LI90
    Battery Life (CIPA)750 shots per charge800 shots per charge
    Body Dimensions 146 x 108 x 74 mm
    (5.7 x 4.3 x 2.9 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 822 g (29.0 oz) 1480 g (52.2 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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