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Canon XSi vs Olympus E-520

The Canon EOS Rebel XSi (called Canon 450D in some regions) and the Olympus E-520 are two digital cameras that were revealed to the public, respectively, in January 2008 and May 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (XSi) and a Four Thirds (E-520) sensor. The Canon has a resolution of 12.2 megapixels, whereas the Olympus provides 10 MP.

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

Headline Specifications
Canon XSi
versus
Olympus E-520
Canon XSi   Olympus E-520
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Four Thirds lenses
12.2 MP – APS-C sensor 10 MP – Four Thirds sensor
no Video no Video
ISO 100-1,600 ISO 100-1,600
Optical viewfinder Optical viewfinder
3.0" LCD – 230k dots 2.7" LCD – 215k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3.5 shutter flaps per second 3.5 shutter flaps per second
Lens stabilization onlyIn-body stabilization
500 shots per battery charge750 shots per battery charge
129 x 98 x 62 mm, 524 g 136 x 92 x 68 mm, 535 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel XSi and the Olympus E-520? 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 side-by-side display below illustrates the physical size and weight of the Canon XSi and the Olympus E-520. 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 XSi vs Olympus E-520
Compare XSi versus E-520 top
Comparison XSi or E-520 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-520 is somewhat smaller (1 percent) than the Canon XSi. However, the E-520 is slightly heavier (2 percent) than the XSi. In this context, it is worth noting that neither the XSi nor the E-520 are weather-sealed.

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 (XSi) and the Four Thirds Lens Catalog (E-520).

Concerning battery life, the XSi gets 500 shots out of its Canon LP-E5 battery, while the E-520 can take 750 images on a single charge of its Olympus BLM-1 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
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 US$ 799ebay.com
2.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 US$ 699ebay.com
3.
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 US$ 1 299ebay.com
4.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 US$ 799ebay.com
5.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 US$ 699ebay.com
6.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 US$ 449ebay.com
7.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 US$ 849ebay.com
8.
 
Canon T6i 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 US$ 749ebay.com
9.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 US$ 649ebay.com
10.
 
Canon XS 126 mm 98 mm 65 mm 502 g 500 n Jun 2008 US$ 449ebay.com
11.
 
Canon XT 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 US$ 899ebay.com
12.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 US$ 799ebay.com
13.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 US$ 699ebay.com
14.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 US$ 599ebay.com
15.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 US$ 799ebay.com
16.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 US$ 449ebay.com
17.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 US$ 699ebay.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The E-520 was launched at a somewhat lower price (by 13 percent) than the XSi, which makes it more attractive for photographers on a tight budget. 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. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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 XSi features an APS-C sensor and the Olympus E-520 a Four Thirds sensor. The sensor area in the E-520 is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the XSi has a native 3:2 aspect ratio, while the one in the E-520 offers a 4:3 aspect.

Canon XSi and Olympus E-520 sensor measures

With 12.2MP, the XSi offers a higher resolution than the E-520 (10MP), but the XSi nevertheless has larger individual pixels (pixel pitch of 5.19μm versus 4.74μm for the E-520) due to its larger sensor. However, the E-520 is a somewhat more recent model (by 3 months) than the XSi, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon XSi implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the XSi for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inches or 54.3 x 36.2 cm, for very good quality (250 dpi) 17.1 x 11.4 inches or 43.4 x 28.9 cm, and for excellent quality (300 dpi) 14.2 x 9.5 inches or 36.2 x 24.1 cm. The corresponding values for the Olympus E-520 are 18.2 x 13.7 inches or 46.3 x 34.7 cm for good quality, 14.6 x 10.9 inches or 37.1 x 27.8 cm for very good quality, and 12.2 x 9.1 inches or 30.9 x 23.2 cm for excellent quality prints.

The Canon EOS Rebel XSi has a native sensitivity range from ISO 100 to ISO 1600. The Olympus E-520 offers exactly the same ISO settings.

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.

XSi versus E-520 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 review, the XSi has a notably higher overall DXO score than the E-520 (overall score 6 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.5 bits higher color depth, 0.4 EV in additional dynamic range, and 0.3 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 XSi APS-C 12.2 4272 2848none21.910.869261
2.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
3.
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
4.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
5.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
6.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
7.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
8.
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
9.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
10.
 
Canon XS APS-C 10.1 3888 2592none22.010.971962
11.
 
Canon XT APS-C 8.0 3456 2304none21.810.863760
12.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
13.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
14.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
15.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
16.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
17.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
Both the XSi and the E-520 offer Live View, so that they make it possible to use the rear screen for framing. Both cameras are still-image focused and cannot record videos.
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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The XSi and the E-520 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the XSi has a higher magnification than the one of the E-520 (0.54x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon XSi and Olympus E-520 in connection with corresponding information for a sample of similar cameras.

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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 XSioptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
2.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
3.
 
Canon 40Doptical Y3.0 / 230 fixed n 1/8000s 6.5/s Y n
4.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
5.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
6.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
7.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
8.
 
Canon T6ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon T6soptical Y3.0 / 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 XToptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
12.
 
Canon XTioptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
14.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
15.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
16.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
17.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-520 and the XSi is in-body image stabilization (IBIS). The E-520 reduces the risk of handshake-induced blur with all attached lenses, while the XSi offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The XSi writes its imaging data to SDHC cards, while the E-520 uses Compact Flash or xD Picture cards. The E-520 features dual card slots, which can be very useful in case a memory card fails. In contrast, the XSi only has one slot.

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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 XSi and Olympus E-520 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 XSiY- / ---mini2.0---
2.
 
Olympus E-520Y- / ----2.0---
3.
 
Canon 40DY- / ----2.0---
4.
 
Canon T1iYmono / mono--mini2.0---
5.
 
Canon T2iYstereo / -Y-mini2.0---
6.
 
Canon T3Ystereo / mono--mini2.0---
7.
 
Canon T4iYstereo / monoY-mini2.0---
8.
 
Canon T6iYstereo / monoY-mini2.0YY-
9.
 
Canon T6sYstereo / monoY-mini2.0YY-
10.
 
Canon XSY- / ----2.0---
11.
 
Canon XTY- / ----2.0---
12.
 
Canon XTiY- / ----2.0---
13.
 
Olympus E-410Y- / ----2.0---
14.
 
Olympus E-420Y- / ----2.0---
15.
 
Olympus E-510Y- / ----2.0---
16.
 
Olympus E-600Y- / ----2.0---
17.
 
Olympus E-620Y- / ----2.0---

Both the XSi and the E-520 have been discontinued, but can regularly be found used on ebay. The XSi was replaced by the Canon T1i, while the E-520 does not have a direct successor. Further information on the features and operation of the XSi and E-520 can be found, respectively, in the Canon XSi Manual (free pdf) or the online Olympus E-520 Manual.

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Review summary

So what is the bottom line? Which of the two cameras – the Canon XSi or the Olympus E-520 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Advantages of the Canon EOS Rebel XSi:

  • More detail: Offers more megapixels (12.2 vs 10MP) with a 13% higher linear resolution.
  • Better image quality: Scores markedly higher (6 points) in the DXO overall assessment.
  • Better low-light sensitivity: Requires less light for good images (0.3 stops ISO advantage).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.54x vs 0.46x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More heavily discounted: Has been on the market for longer (launched in January 2008).

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Reasons to prefer the Olympus E-520:

  • Longer lasting: Gets more shots (750 versus 500) out of a single battery charge.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More affordable: Was released into a lower priced segment (13 percent cheaper at launch).
  • More modern: Was introduced somewhat (3 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the XSi comes out slightly ahead of the E-520 (6 : 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.

XSi 06:05 E-520

How about other alternatives? Do the specifications of the Canon XSi and the Olympus E-520 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 XSi and the E-520 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. 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 XSi..+ +..+ +4/54.5/5 Jan 2008 US$ 799ebay.com
2.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 US$ 699ebay.com
3.
 
Canon 40D..+ +..+ +4.5/54.5/5 Aug 2007 US$ 1 299ebay.com
4.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 US$ 799ebay.com
5.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 US$ 699ebay.com
6.
 
Canon T3..80/100..69/1004/54.5/5 Feb 2011 US$ 449ebay.com
7.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 US$ 849ebay.com
8.
 
Canon T6i5/5....75/1004.5/54.5/5 Feb 2015 US$ 749ebay.com
9.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 US$ 649ebay.com
10.
 
Canon XS..82/100..+ +3.5/54.5/5 Jun 2008 US$ 449ebay.com
11.
 
Canon XT..80/100..+ +o.. Feb 2005 US$ 899ebay.com
12.
 
Canon XTi..+ +..+ +o4/5 Aug 2006 US$ 799ebay.com
13.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 US$ 699ebay.com
14.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 US$ 599ebay.com
15.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 US$ 799ebay.com
16.
 
Olympus E-600..........4.5/5 Aug 2009 US$ 449ebay.com
17.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 US$ 699ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? If you would like to see a different side-by-side camera review, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon XSi vs Olympus E-520

    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 XSi Olympus E-520
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Four Thirds lenses
    Launch Date January 2008 May 2008
    Launch Price USD 799 USD 699
    Sensor Specs Canon XSi Olympus E-520
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.2 x 14.8 mm 17.3 x 13.0 mm
    Sensor Area 328.56 mm2 224.9 mm2
    Sensor Diagonal 26.7 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 12.2 Megapixels 10 Megapixels
    Image Resolution 4272 x 2848 pixels 3648 x 2736 pixels
    Pixel Pitch 5.19 μm 4.74 μm
    Pixel Density 3.70 MP/cm2 4.44 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability no Video no Video
    ISO Setting 100 - 1,600 ISO 100 - 1,600 ISO
    Image Processor DIGIC 3 TruePic III
    DXO Sensor Quality (score) 61 55
    DXO Color Depth (bits) 21.9 21.4
    DXO Dynamic Range (EV) 10.8 10.4
    DXO Low Light (ISO) 692 548
    Screen Specs Canon XSi Olympus E-520
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.54x 0.46x
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 2.7inch
    LCD Resolution 230k dots 215k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon XSi Olympus E-520
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3.5 shutter flaps/s 3.5 shutter flaps/s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDHC cards CF or XD cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Canon XSi Olympus E-520
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Wifi Support no Wifi no Wifi
    Body Specs Canon XSi Olympus E-520
    Battery Type Canon LP-E5 Olympus BLM-1
    Battery Life (CIPA)500 shots per charge750 shots per charge
    Body Dimensions 129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    136 x 92 x 68 mm
    (5.4 x 3.6 x 2.7 in)
    Camera Weight 524 g (18.5 oz) 535 g (18.9 oz)
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