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Canon XTi vs Sony A7S

The Canon EOS Rebel XTi (called Canon 400D in some regions) and the Sony Alpha A7S are two digital cameras that were announced, respectively, in August 2006 and April 2014. The XTi is a DSLR, while the A7S is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (XTi) and a full frame (A7S) sensor. The Canon has a resolution of 10.1 megapixels, whereas the Sony 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 XTi
versus
Sony A7S
Canon XTi   Sony A7S
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Sony E mount lenses
10.1 MP – APS-C sensor 12 MP – Full Frame sensor
no Video 1080/60p Video
ISO 100-1,600 ISO 100-102,400 (50 - 409,600)
Optical viewfinder Electronic viewfinder (2400k dots)
2.5" LCD – 230k dots 3.0" LCD – 921k dots
Fixed screen (not touch-sensitive) Tilting screen (no touchscreen)
3 shutter flaps per second 5 shutter flaps per second
not weather sealedWeathersealed body
370 shots per battery charge380 shots per battery charge
127 x 84 x 65 mm, 556 g 127 x 94 x 48 mm, 489 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel XTi and the Sony Alpha A7S? 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.

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Body comparison

The physical size and weight of the Canon XTi and the Sony A7S are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

Size Canon XTi vs Sony A7S
Compare XTi versus A7S top
Comparison XTi or A7S rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S is notably larger (12 percent) than the Canon XTi. However, the A7S is markedly lighter (12 percent) than the XTi. It is noteworthy in this context that the A7S is splash and dust-proof, while the XTi 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (XTi) and the Sony FE Lens Catalog (A7S). Mirrorless cameras, such as the A7S, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the XTi gets 370 shots out of its Canon NB-2LH battery, while the A7S can take 380 images on a single charge of its Sony NP-FW50 power pack. The power pack in the A7S can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 US$ 799ebay.com
2.
 
Sony A7S 127 mm 94 mm 48 mm 489 g 380 Y Apr 2014 US$ 2 499ebay.com
3.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 US$ 1 299ebay.com
4.
 
Canon Rebel 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 US$ 899ebay.com
5.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 US$ 799ebay.com
6.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 US$ 699ebay.com
7.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 US$ 449ebay.com
8.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 US$ 849ebay.com
9.
 
Canon T6i 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 US$ 749ebay.com
10.
 
Canon XS 126 mm 98 mm 65 mm 502 g 500 n Jun 2008 US$ 449ebay.com
11.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 US$ 799ebay.com
12.
 
Canon XT 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 US$ 899ebay.com
13.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 US$ 1 699ebay.com
14.
 
Sony A7R 127 mm 94 mm 48 mm 465 g 340 Y Oct 2013 US$ 2 299ebay.com
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 US$ 2 999ebay.com
16.
 
Sony RX1R 113 mm 65 mm 70 mm 482 g 270 n Jun 2013 US$ 2 799ebay.com
17.
 
Sony ZV-E1 121 mm 72 mm 54 mm 483 g 570 Y Mar 2023 US$ 2 199 amazon.com
Note: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The XTi was launched at a markedly lower price (by 68 percent) than the A7S, 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon XTi features an APS-C sensor and the Sony A7S a full frame sensor. The sensor area in the A7S is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon XTi and Sony A7S sensor measures

With 12MP, the A7S offers a higher resolution than the XTi (10.1MP), but the A7S nevertheless has larger individual pixels (pixel pitch of 8.45μm versus 5.71μm for the XTi) due to its larger sensor. Moreover, the A7S is a much more recent model (by 7 years and 7 months) than the XTi, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A7S implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7S for good quality output (200 dots per inch) amounts to 21.2 x 14.2 inches or 53.8 x 36 cm, for very good quality (250 dpi) 17 x 11.3 inches or 43.1 x 28.8 cm, and for excellent quality (300 dpi) 14.1 x 9.4 inches or 35.9 x 24 cm. The corresponding values for the Canon XTi 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 Rebel XTi has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sony Alpha A7S are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

XTi versus A7S 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 consideration, the A7S offers substantially better image quality than the XTi (overall score 25 points higher). The advantage is based on 1.8 bits higher color depth, 2.2 EV in additional dynamic range, and 2.5 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
2.
 
Sony A7S Full Frame 12.0 4240 28321080/60p23.913.2370287
3.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
4.
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455
5.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
6.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
7.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
8.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
9.
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
10.
 
Canon XS APS-C 10.1 3888 2592none22.010.971962
11.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
12.
 
Canon XT APS-C 8.0 3456 2304none21.810.863760
13.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
14.
 
Sony A7R Full Frame 36.2 7360 49121080/60p25.614.1274695
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony RX1R Full Frame 24.0 6000 40001080/60p25.013.6253791
17.
 
Sony ZV-E1 Full Frame 12.0 4240 28324K/60p25.414.6318196
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The A7S indeed provides for movie recording, while the XTi does not. The highest resolution format that the A7S can use is 1080/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7S has an electronic viewfinder (2400k dots), while the XTi has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A7S offers a wider field of view (100%) than the one in the XTi (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7S has a higher magnification (0.71x vs 0.49x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon XTi and Sony A7S along with similar information for a selection of comparators.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon XTioptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
2.
 
Sony A7S2400 n3.0 / 921 tilting n 1/8000s 5.0/s n n
3.
 
Canon 40Doptical Y3.0 / 230 fixed n 1/8000s 6.5/s Y n
4.
 
Canon Rebeloptical n1.8 / 118 fixed n 1/4000s 2.5/s Y n
5.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
6.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
7.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon T6ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
10.
 
Canon XSoptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Canon XSioptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
12.
 
Canon XToptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
13.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
14.
 
Sony A7R2400 n3.0 / 1230 tilting n 1/8000s 4.0/s n n
15.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony RX1Roptional n3.0 / 1229 fixed n 1/4000s 5.0/s Y n
17.
 
Sony ZV-E1none n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The XTi has one, while the A7S does not. While the built-in flash of the XTi is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7S is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The XTi writes its imaging data to Compact Flash cards, while the A7S uses SDXC or Memory Stick PRO Duo 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 Rebel XTi and Sony Alpha A7S and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon XTiY- / ----2.0---
2.
 
Sony A7SYstereo / monoYYmicro2.0YY-
3.
 
Canon 40DY- / ----2.0---
4.
 
Canon RebelY- / ----1.1---
5.
 
Canon T1iYmono / mono--mini2.0---
6.
 
Canon T2iYstereo / -Y-mini2.0---
7.
 
Canon T3Ystereo / mono--mini2.0---
8.
 
Canon T4iYstereo / monoY-mini2.0---
9.
 
Canon T6iYstereo / monoY-mini2.0YY-
10.
 
Canon XSY- / ----2.0---
11.
 
Canon XSiY- / ---mini2.0---
12.
 
Canon XTY- / ----2.0---
13.
 
Sony A7Ystereo / monoYYmicro2.0YY-
14.
 
Sony A7RYstereo / monoYYmicro2.0YY-
15.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
16.
 
Sony RX1RYstereo / monoY-mini2.0---
17.
 
Sony ZV-E1Ystereo / monoYYmicro3.2Y-Y

It is notable that the A7S offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the XTi does not provide wifi capability.

Both the XTi and the A7S have been discontinued, but can regularly be found used on ebay. The XTi was replaced by the Canon Xsi, while the A7S was followed by the Sony A7S II. Further information on the features and operation of the XTi and A7S can be found, respectively, in the Canon XTi Manual (free pdf) or the online Sony A7S Manual.

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Review summary

So what is the bottom line? Is the Canon XTi better than the Sony A7S or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Canon EOS Rebel XTi:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (127x84mm vs 127x94mm) and thus needs less room in the bag.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (68 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in August 2006).

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Arguments in favor of the Sony Alpha A7S:

  • More detail: Has more megapixels (12 vs 10.1MP), which boosts linear resolution by 9%.
  • Better image quality: Scores substantially higher (25 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.8 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.2 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (2.5 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.49x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (5 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Less heavy: Has a lower weight (by 67g or 12 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More modern: Reflects 7 years and 7 months of technical progress since the XTi launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7S is the clear winner of the contest (22 : 5 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.

XTi 05:22 A7S

How about other alternatives? Do the specifications of the Canon XTi and the Sony A7S place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 says little about, for example, the shooting experience and imaging performance of the XTi and the A7S 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 hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular 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
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon XTi..+ +..+ +o4/5 Aug 2006 US$ 799ebay.com
2.
 
Sony A7S4/5....86/1004.5/55/5 Apr 2014 US$ 2 499ebay.com
3.
 
Canon 40D..+ +..+ +4.5/54.5/5 Aug 2007 US$ 1 299ebay.com
4.
 
Canon Rebel......+ +.... Aug 2003 US$ 899ebay.com
5.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 US$ 799ebay.com
6.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 US$ 699ebay.com
7.
 
Canon T3..80/100..69/1004/54.5/5 Feb 2011 US$ 449ebay.com
8.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 US$ 849ebay.com
9.
 
Canon T6i5/5....75/1004.5/54.5/5 Feb 2015 US$ 749ebay.com
10.
 
Canon XS..82/100..+ +3.5/54.5/5 Jun 2008 US$ 449ebay.com
11.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 US$ 799ebay.com
12.
 
Canon XT..80/100..+ +o.. Feb 2005 US$ 899ebay.com
13.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 US$ 1 699ebay.com
14.
 
Sony A7R5/5+ +..82/1004.5/55/5 Oct 2013 US$ 2 299ebay.com
15.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 US$ 2 999ebay.com
16.
 
Sony RX1R5/5......4/54.5/5 Jun 2013 US$ 2 799ebay.com
17.
 
Sony ZV-E1..+4/5....4.5/5 Mar 2023 US$ 2 199 amazon.com
Note: (+ +) 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. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. 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 XTi vs Sony A7S

    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 XTi Sony A7S
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Sony E mount lenses
    Launch Date August 2006 April 2014
    Launch Price USD 799 USD 2,499
    Sensor Specs Canon XTi Sony A7S
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 22.2 x 14.8 mm 35.8 x 23.9 mm
    Sensor Area 328.56 mm2 855.62 mm2
    Sensor Diagonal 26.7 mm 43 mm
    Crop Factor 1.6x 1.0x
    Sensor Resolution 10.1 Megapixels 12 Megapixels
    Image Resolution 3888 x 2592 pixels 4240 x 2832 pixels
    Pixel Pitch 5.71 μm 8.45 μm
    Pixel Density 3.07 MP/cm2 1.40 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video 1080/60p Video
    ISO Setting 100 - 1,600 ISO 100 - 102,400 ISO
    ISO Boost no Enhancement 50 - 409,600 ISO
    Image Processor DIGIC II BIONZ X
    DXO Sensor Quality (score) 62 87
    DXO Color Depth (bits) 22.1 23.9
    DXO Dynamic Range (EV) 11.0 13.2
    DXO Low Light (ISO) 664 3702
    Screen Specs Canon XTi Sony A7S
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.49x 0.71x
    Viewfinder Resolution 2400k dots
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 921k dots
    LCD Attachment Fixed screen Tilting screen
    Shooting Specs Canon XTi Sony A7S
    Focus System Phase-detect AF Contrast-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterno E-ShutterYES
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium CF cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    Connectivity Specs Canon XTi Sony A7S
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Microphone Port no MIC socket External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Canon XTi Sony A7S
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon NB-2LH Sony NP-FW50
    Battery Life (CIPA)370 shots per charge380 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 127 x 84 x 65 mm
    (5.0 x 3.3 x 2.6 in)
    127 x 94 x 48 mm
    (5.0 x 3.7 x 1.9 in)
    Camera Weight 556 g (19.6 oz) 489 g (17.2 oz)
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