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Canon T2i vs Pentax 645D

The Canon EOS Rebel T2i (called Canon 550D in some regions) and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in February 2010 and March 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T2i) and a medium format (645D) sensor. The Canon has a resolution of 17.9 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 T2i   VS Pentax 645D
Canon T2i Pentax 645D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Pentax 645 mount lenses
17.9 MP, APS-C Sensor 39.5 MP, Medium Format Sensor
1080/30p Video no Video
ISO 100-6400 (100-12800) ISO 100-1600
Optical viewfinder Optical viewfinder
3.0" LCD, 1040k dots 3.0" LCD, 921k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3.7 shutter flaps per second 1.1 shutter flaps per second
Not weather sealedWeathersealed body
440 shots per battery charge800 shots per battery charge
129 x 98 x 62 mm, 530 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 Rebel T2i 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 physical size and weight of the Canon T2i and the Pentax 645D are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon T2i vs Pentax 645D
Compare T2i versus 645D top
Comparison T2i 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 considerably larger (44 percent) than the Canon T2i. Moreover, the 645D is substantially heavier (179 percent) than the T2i. It is noteworthy in this context that the 645D is splash and dust-proof, while the T2i 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 T2i gets 440 shots out of its LP-E8 battery, while the 645D can take 800 images on a single charge of its D-LI90 power pack.

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.

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)
Camera
Model
 
Canon T2i» 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699iCanon T2i
 
Pentax 645D« 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995iPentax 645D
 
Canon T100« » 5.1 in 4.0 in 3.0 in 15.4 oz 500 n Feb 2018 399 iCanon T100
 
Canon T6s« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649iCanon T6s
 
Canon T5« » 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449iCanon T5
 
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649iCanon T5i
 
Canon T4i« » 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849iCanon T4i
 
Canon 1D X« » 6.2 in 6.6 in 3.3 in 54.7 oz 1120 Y Oct 2011 6,799iCanon 1D X
 
Canon T3« » 5.1 in 3.9 in 3.1 in 17.5 oz 700 n Feb 2011 449iCanon T3
 
Canon T3i« » 5.2 in 3.9 in 3.1 in 20.1 oz 440 n Feb 2011 599iCanon T3i
 
Canon 1D Mark IV« » 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999iCanon 1D Mark IV
 
Canon T1i« » 5.1 in 3.9 in 2.4 in 18.3 oz 400 n Mar 2009 799iCanon T1i
 
Canon XSi« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799iCanon XSi
 
Canon XTi« » 5.0 in 3.3 in 2.6 in 19.6 oz 370 n Aug 2006 799iCanon XTi
 
Leica S Typ 006« » 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2012 21,950iLeica S Typ 006
 
Nikon D3S« » 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199iNikon D3S
 
Pentax 645Z« » 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 iPentax 645Z
Note: Measurements and pricing do not include easily detachable parts, such as 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 T2i was launched at a markedly lower price (by 93 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the 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 T2i 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 T2i has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.

Canon T2i and Pentax 645D sensor measures

With 39.5MP, the 645D offers a higher resolution than the T2i (17.9MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 4.31μm for the T2i) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. 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 inch or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inch or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inch or 61.5 x 46.1 cm. The corresponding values for the Canon T2i are 25.9 x 17.3 inch or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inch or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inch or 43.9 x 29.3 cm for excellent quality prints.

The Canon EOS Rebel T2i has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

T2i versus 645D 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 645D offers substantially better image quality than the T2i (overall score 16 points higher). The advantage is based on 2.5 bits higher color depth, 1.1 EV in additional dynamic range, and 0.7 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 T2i APS-C 17.9 5184 34561080/30p22.111.578466Canon T2i
 
Pentax 645D Medium Format 39.5 7264 5440none24.612.6126282Pentax 645D
 
Canon T100 APS-C 17.9 5184 34561080/30p21.911.469563Canon T100
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463Canon T5
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262Canon T4i
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562Canon T3
 
Canon T3i APS-C 17.9 5184 34561080/30p22.111.579365Canon T3i
 
Canon 1D Mark IV APS-H 16.0 4896 32641080/30p22.812.0132074Canon 1D Mark IV
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363Canon T1i
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261Canon XSi
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462Canon XTi
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476Leica S Typ 006
 
Nikon D3S Full Frame 12.1 4256 2832720/24p23.512.0325382Nikon D3S
 
Pentax 645Z Medium Format 51.1 8256 61921080/60i26.014.74505101Pentax 645Z

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The T2i indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the T2i can use is 1080/30p.

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The T2i 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 T2i (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 0.54x), 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 T2i, the Pentax 645D, and comparable 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 T2ioptical n 3.0 1040 fixed n 1/4000s 3.7 Y n Canon T2i
 
Pentax 645Doptical Y 3.0 921 fixed n 1/4000s 1.1 n n Pentax 645D
 
Canon T100optical n 2.7 230 fixed n 1/4000s 3.0 Y n Canon T100
 
Canon T6soptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T6s
 
Canon T5optical n 3.0 460 fixed n 1/4000s 3.0 Y n Canon T5
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T5i
 
Canon T4ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon T4i
 
Canon 1D Xoptical Y 3.2 1040 fixed n 1/8000s 14.0 n n Canon 1D X
 
Canon T3optical n 2.7 230 fixed n 1/4000s 3.0 Y n Canon T3
 
Canon T3ioptical n 3.0 1040 swivel n 1/4000s 3.7 Y n Canon T3i
 
Canon 1D Mark IVoptical Y 3.0 920 fixed n 1/8000s 10.0 n n Canon 1D Mark IV
 
Canon T1ioptical n 3.0 920 fixed n 1/4000s 3.4 Y n Canon T1i
 
Canon XSioptical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon XSi
 
Canon XTioptical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon XTi
 
Leica S Typ 006optical Y 3.0 922 fixed n 1/4000s 1.5 n n Leica S Typ 006
 
Nikon D3Soptical Y 3.0 921 fixed n 1/8000s 11.0 n n Nikon D3S
 
Pentax 645Zoptical Y 3.2 1037 tilting n 1/4000s 3.0 n n Pentax 645Z

One difference between the cameras concerns the presence of an on-board flash. The T2i has one, while the 645D does not. While the built-in flash of the T2i 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.

Concerning the storage of imaging data, both the T2i and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the T2i 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 Rebel T2i and Pentax 645D 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
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Canon T2iYstereononeY-mini2.0---Canon T2i
 
Pentax 645DYstereonone--none2.0---Pentax 645D
 
Canon T100Ymonomono--mini2.0YY-Canon T100
 
Canon T6sYstereomonoY-mini2.0YY-Canon T6s
 
Canon T5Ymonomono--mini2.0---Canon T5
 
Canon T5iYstereomonoY-mini2.0---Canon T5i
 
Canon T4iYstereomonoY-mini2.0---Canon T4i
 
Canon 1D XYmonononeY-mini2.0---Canon 1D X
 
Canon T3Ystereomono--mini2.0---Canon T3
 
Canon T3iYmonomonoY-mini2.0---Canon T3i
 
Canon 1D Mark IVYstereononeY-mini2.0---Canon 1D Mark IV
 
Canon T1iYmonomono--mini2.0---Canon T1i
 
Canon XSiYnonenone--mini2.0---Canon XSi
 
Canon XTiYnonenone--none2.0---Canon XTi
 
Leica S Typ 006Ynonenone--mini2.0---Leica S Typ 006
 
Nikon D3SYstereonone--mini2.0---Nikon D3S
 
Pentax 645ZYstereomonoY-mini3.0---Pentax 645Z

Studio photographers will appreciate that the Pentax 645D (unlike the T2i) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the T2i and the 645D have been discontinued, but can regularly be found used on eBay. The T2i was replaced by the Canon T3i, 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? Which of the two cameras – the Canon T2i or the Pentax 645D – 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 Rebel T2i:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Broader imaging potential: Can record not only still images but also 1080/30p movies.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 921k dots).
  • Faster burst: Shoots at higher frequency (3.7 vs 1.1 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (129x98mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 950g or 64 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 (93 percent cheaper at launch).

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Reasons to prefer the Pentax 645D:

  • More detail: Has more megapixels (39.5 vs 17.9MP), which boosts linear resolution by 46%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (16 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 (1.1 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.7 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 0.54x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Gets more shots (800 versus 440) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • 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.

If the count of individual advantages (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (14 : 8 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

T2i 08:14 645D

How about other alternatives? Do the specifications of the Canon T2i 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T2i or the 645D. 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 where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Canon T2i+ +77/1004/55/54.5/5 Feb 2010 699iCanon T2i
 
Pentax 645D......4.5/5.. Mar 2010 9,995iPentax 645D
 
Canon T100o..3.5/5..3.5/5 Feb 2018 399 iCanon T100
 
Canon T6s+77/1004.5/54.5/54.5/5 Feb 2015 649iCanon T6s
 
Canon T5+..4/54/54.5/5 Feb 2014 449iCanon T5
 
Canon T5i..76/1004.5/54.5/54.5/5 Mar 2013 649iCanon T5i
 
Canon T4i+ +77/1004.5/54.5/54.5/5 Jun 2012 849iCanon T4i
 
Canon 1D X....4.5/54.5/54.5/5 Oct 2011 6,799iCanon 1D X
 
Canon T380/10069/1004/54/54.5/5 Feb 2011 449iCanon T3
 
Canon T3io77/1004.5/55/54.5/5 Feb 2011 599iCanon T3i
 
Canon 1D Mark IV..89/100..5/5.. Oct 2009 4,999iCanon 1D Mark IV
 
Canon T1i+ +74/1004.5/55/54.5/5 Mar 2009 799iCanon T1i
 
Canon XSi+ ++ +4/55/54.5/5 Jan 2008 799iCanon XSi
 
Canon XTi+ ++ +o4.5/54/5 Aug 2006 799iCanon XTi
 
Leica S Typ 006.......... Sep 2012 21,950iLeica S Typ 006
 
Nikon D3S..89/1004.5/55/55/5 Oct 2009 5,199iNikon D3S
 
Pentax 645Z....4.5/55/55/5 Apr 2014 8,499 iPentax 645Z
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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 T2i:
Check Ebay offers
Pentax 645D:
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 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 T2i 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 T2i Pentax 645D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Pentax 645 mount lenses
    Launch Date February 2010 March 2010
    Launch Price USD 699 USD 9995
    Sensor Specs Canon T2i 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 17.9 Megapixels 39.5 Megapixels
    Image Resolution 5184 x 3456 pixels 7264 x 5440 pixels
    Pixel Pitch 4.31 μm 6.06 μm
    Pixel Density 5.39 MP/cm2 2.72 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video no Video
    ISO Setting 100-6400 ISO 100-1600 ISO
    ISO Boost 100-12800 ISO no Enhancement
    Image Processor DIGIC 4 PRIME II
    DXO Sensor Quality (score) 66 82
    DXO Color Depth (bits) 22.1 24.6
    DXO Dynamic Range (EV) 11.5 12.6
    DXO Low Light (ISO) 784 1262
    Screen Specs Canon T2i Pentax 645D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 98%
    Viewfinder Magnification 0.54x 0.78x
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1040k dots 921k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon T2i Pentax 645D
    Autofocus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3.7 shutter flaps/s 1.1 shutter flaps/s
    Shutter Life Expectancy100 000 actuations50 000 actuations
    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 no
    Connectivity Specs Canon T2i Pentax 645D
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi no Wifi
    Body Specs Canon T2i Pentax 645D
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type LP-E8 D-LI90
    Battery Life (CIPA)440 shots per charge800 shots per charge
    Body Dimensions 129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    156 x 117 x 119 mm
    (6.1 x 4.6 x 4.7 in)
    Camera Weight 530 g (18.7 oz) 1480 g (52.2 oz)

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