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Canon T3 vs Olympus E-620

The Canon EOS Rebel T3 (called Canon 1100D in some regions) and the Olympus E-620 are two digital cameras that were officially introduced, respectively, in February 2011 and February 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T3) and a Four Thirds (E-620) sensor. Both cameras offer a resolution of 12.2 megapixels.

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

Headline Specifications
Canon T3
versus
Olympus E-620
Canon T3   Olympus E-620
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Four Thirds lenses
12.2 MP – APS-C sensor 12.2 MP – Four Thirds sensor
720/30p Video no Video
ISO 100-6,400 ISO 100-3,200
Optical viewfinder Optical viewfinder
2.7" LCD – 230k dots 2.7" LCD – 230k dots
Fixed screen (not touch-sensitive) Swivel screen (not touch-sensitive)
3 shutter flaps per second 4 shutter flaps per second
Lens stabilization onlyIn-body stabilization
700 shots per battery charge500 shots per battery charge
130 x 100 x 78 mm, 495 g 130 x 94 x 60 mm, 521 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3 and the Olympus E-620? 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 T3 and the Olympus E-620 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.

Size Canon T3 vs Olympus E-620
Compare T3 versus E-620 top
Comparison T3 or E-620 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-620 is notably smaller (6 percent) than the Canon T3. However, the E-620 is markedly heavier (5 percent) than the T3. In this context, it is worth noting that neither the T3 nor the E-620 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 (T3) and the Four Thirds Lens Catalog (E-620).

Concerning battery life, the T3 gets 700 shots out of its LP-E10 battery, while the E-620 can take 500 images on a single charge of its BLS-1 power pack.

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

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449ebay.com
2.
 
Olympus E-620 130 mm 94 mm 60 mm 521 g 500 n Feb 2009 699ebay.com
3.
 
Canon T100 129 mm 102 mm 77 mm 436 g 500 n Feb 2018 399 amazon.com
4.
 
Canon T5 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 449ebay.com
5.
 
Canon G1 X 117 mm 81 mm 65 mm 534 g 250 n Jan 2012 799ebay.com
6.
 
Canon SX50 123 mm 87 mm 106 mm 595 g 315 n Sep 2012 429ebay.com
7.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849ebay.com
8.
 
Canon T3i 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 599ebay.com
9.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699ebay.com
10.
 
Canon XS 126 mm 98 mm 65 mm 502 g 500 n Jun 2008 449ebay.com
11.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
12.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799ebay.com
13.
 
Olympus E-600 130 mm 94 mm 60 mm 535 g 500 n Aug 2009 449ebay.com
14.
 
Olympus E-420 130 mm 91 mm 53 mm 440 g 500 n Mar 2008 599ebay.com
15.
 
Olympus E-520 136 mm 92 mm 68 mm 535 g 750 n May 2008 699ebay.com
16.
 
Olympus E-410 130 mm 91 mm 53 mm 435 g 500 n Mar 2007 699ebay.com
17.
 
Olympus E-510 136 mm 92 mm 68 mm 538 g 750 n Mar 2007 799ebay.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 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 T3 was launched at a markedly lower price (by 36 percent) than the E-620, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon T3 features an APS-C sensor and the Olympus E-620 a Four Thirds sensor. The sensor area in the E-620 is 30 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 T3 has a native 3:2 aspect ratio, while the one in the E-620 offers a 4:3 aspect.

Canon T3 and Olympus E-620 sensor measures

Even though the T3 has a larger sensor, both cameras offer the same resolution of 12.2 megapixels. This implies that the T3 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.15μm versus 4.29μm for the E-620), which gives it a potential advantage in terms of light gathering capacity. In addition, the T3 is a somewhat more recent model (by 1 year and 11 months) than the E-620, and its sensor might have benefitted from technological advances during this time.

The Canon EOS Rebel T3 has a native sensitivity range from ISO 100 to ISO 6400. The corresponding ISO settings for the Olympus E-620 are ISO 100 to ISO 3200 (no boost).

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.

T3 versus E-620 MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 review, the T3 has a notably higher overall DXO score than the E-620 (overall score 7 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 0.6 bits higher color depth, 0.7 EV in additional dynamic range, and 0.5 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
2.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
3.
 
Canon T100 APS-C 17.9 5184 34561080/30p21.911.469563
4.
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
5.
 
Canon G1 X 1.5-inch 14.2 4352 32641080/24p21.710.864460
6.
 
Canon SX50 1/2.3 12.0 4000 30001080/24p20.311.217947
7.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
8.
 
Canon T3i APS-C 17.9 5184 34561080/30p22.111.579365
9.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
10.
 
Canon XS APS-C 10.1 3888 2592none22.010.971962
11.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
12.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
13.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
14.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
15.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
16.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
17.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252

Many modern cameras cannot only take still pictures, but also record videos. The T3 indeed provides movie recording capabilities, while the E-620 does not. The highest resolution format that the T3 can use is 720/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The T3 and the E-620 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 T3 has a higher magnification than the one of the E-620 (0.50x vs 0.48x), 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 T3 and Olympus E-620 in connection with corresponding information for a sample of similar 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)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
2.
 
Olympus E-620optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
3.
 
Canon T100optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
4.
 
Canon T5optical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
5.
 
Canon G1 Xoptical n3.0 / 922 swivel n 1/4000s 1.9/s Y Y
6.
 
Canon SX50202 n3.0 / 461 swivel n 1/2000s 2.2/s Y Y
7.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
8.
 
Canon T3ioptical n3.0 / 1040 swivel n 1/4000s 3.7/s Y n
9.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/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 XTioptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Olympus E-600optical n2.7 / 230 swivel n 1/4000s 4.0/s Y Y
14.
 
Olympus E-420optical n2.7 / 215 fixed n 1/4000s 3.5/s Y n
15.
 
Olympus E-520optical n2.7 / 215 fixed n 1/4000s 3.5/s Y Y
16.
 
Olympus E-410optical n2.5 / 215 fixed n 1/4000s 3.0/s Y n
17.
 
Olympus E-510optical n2.5 / 215 fixed n 1/4000s 3.0/s Y Y
Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the E-620 and the T3 is in-body image stabilization (IBIS). The E-620 reduces the risk of handshake-induced blur with all attached lenses, while the T3 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The E-620 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the T3 does not have a selfie-screen.

The T3 writes its imaging data to SDXC cards, while the E-620 uses Compact Flash or xD Picture cards. The E-620 features dual card slots, which can be very useful in case a memory card fails. In contrast, the T3 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 T3 and Olympus E-620 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 T3Ystereo / mono--mini2.0---
2.
 
Olympus E-620Y- / ----2.0---
3.
 
Canon T100Ymono / mono--mini2.0YY-
4.
 
Canon T5Ymono / mono--mini2.0---
5.
 
Canon G1 XYstereo / mono--mini2.0---
6.
 
Canon SX50Ystereo / mono--mini2.0---
7.
 
Canon T4iYstereo / monoY-mini2.0---
8.
 
Canon T3iYmono / monoY-mini2.0---
9.
 
Canon T2iYstereo / -Y-mini2.0---
10.
 
Canon XSY- / ----2.0---
11.
 
Canon XSiY- / ---mini2.0---
12.
 
Canon XTiY- / ----2.0---
13.
 
Olympus E-600Y- / ----2.0---
14.
 
Olympus E-420Y- / ----2.0---
15.
 
Olympus E-520Y- / ----2.0---
16.
 
Olympus E-410Y- / ----2.0---
17.
 
Olympus E-510Y- / ----2.0---

Both the T3 and the E-620 have been discontinued, but can regularly be found used on ebay. The E-620 was replaced by the Olympus E-600, while the T3 was followed by the Canon T5. Further information on the features and operation of the T3 and E-620 can be found, respectively, in the Canon T3 Manual (free pdf) or the online Olympus E-620 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon T3 and the Olympus E-620? Which camera is better? 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 T3:

  • Better image quality: Scores markedly higher (7 points) in the DXO overall assessment.
  • More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (0.5 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 720/30p movies.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.50x vs 0.48x).
  • Longer lasting: Can take more shots (700 versus 500) on a single battery charge.
  • More affordable: Was introduced into a lower priced category (36 percent cheaper at launch).
  • More modern: Is somewhat more recent (announced 1 year and 11 months after the E-620).

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Reasons to prefer the Olympus E-620:

  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (4 vs 3 flaps/sec) to capture the decisive moment.
  • 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 heavily discounted: Has been on the market for longer (launched in February 2009).

If the number of relative strengths (bullet points above) is taken as a guide, the T3 emerges as the winner of the contest (8 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

T3 08:06 E-620

How about other alternatives? Do the specifications of the Canon T3 and the Olympus E-620 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 T3 or the E-620. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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 T3..80/100..69/1004/54.5/5 Feb 2011 449ebay.com
2.
 
Olympus E-6203/588/100..72/1004.5/55/5 Feb 2009 699ebay.com
3.
 
Canon T100..o3/5..3.5/53.5/5 Feb 2018 399 amazon.com
4.
 
Canon T53/5+....4/54.5/5 Feb 2014 449ebay.com
5.
 
Canon G1 X5/5+..76/1004/54.5/5 Jan 2012 799ebay.com
6.
 
Canon SX503/5+ +..72/1004.5/54.5/5 Sep 2012 429ebay.com
7.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 849ebay.com
8.
 
Canon T3i3/5o..77/1004.5/54.5/5 Feb 2011 599ebay.com
9.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 699ebay.com
10.
 
Canon XS..82/100..+ +3.5/54.5/5 Jun 2008 449ebay.com
11.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
12.
 
Canon XTi..+ +..+ +o4/5 Aug 2006 799ebay.com
13.
 
Olympus E-600..........4.5/5 Aug 2009 449ebay.com
14.
 
Olympus E-420..85/100..+ +4/54.5/5 Mar 2008 599ebay.com
15.
 
Olympus E-520..87/100..+ +4.5/54.5/5 May 2008 699ebay.com
16.
 
Olympus E-410..86/100..+ +4/54.5/5 Mar 2007 699ebay.com
17.
 
Olympus E-510..89/100..+ +3.5/54.5/5 Mar 2007 799ebay.com
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 comparisons of ratings among very different cameras or across long time periods 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 make a corresponding selection in the search boxes 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 T3 vs Olympus E-620

    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 T3 Olympus E-620
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Four Thirds lenses
    Launch Date February 2011 February 2009
    Launch Price USD 449 USD 699
    Sensor Specs Canon T3 Olympus E-620
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.0 x 14.7 mm 17.3 x 13.0 mm
    Sensor Area 323.4 mm2 224.9 mm2
    Sensor Diagonal 26.5 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 12.2 Megapixels 12.2 Megapixels
    Image Resolution 4272 x 2848 pixels 4032 x 3024 pixels
    Pixel Pitch 5.15 μm 4.29 μm
    Pixel Density 3.76 MP/cm2 5.42 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 720/30p Video no Video
    ISO Setting 100 - 6,400 ISO 100 - 3,200 ISO
    Image Processor DIGIC 4 TruePic III+
    DXO Sensor Quality (score) 62 55
    DXO Color Depth (bits) 21.9 21.3
    DXO Dynamic Range (EV) 11.0 10.3
    DXO Low Light (ISO) 755 536
    Screen Specs Canon T3 Olympus E-620
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.50x 0.48x
    LCD Framing Live View Live View
    Rear LCD Size 2.7inch 2.7inch
    LCD Resolution 230k dots 230k dots
    LCD Attachment Fixed screen Swivel screen
    Shooting Specs Canon T3 Olympus E-620
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 3 shutter flaps/s 4 shutter flaps/s
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards CF or XD cards
    Single or Dual Card Slots Single card slot Dual card slots
    Connectivity Specs Canon T3 Olympus E-620
    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 T3 Olympus E-620
    Battery Type LP-E10 BLS-1
    Battery Life (CIPA)700 shots per charge500 shots per charge
    Body Dimensions 130 x 100 x 78 mm
    (5.1 x 3.9 x 3.1 in)
    130 x 94 x 60 mm
    (5.1 x 3.7 x 2.4 in)
    Camera Weight 495 g (17.5 oz) 521 g (18.4 oz)
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    Check E-620 offers at
    ebay.com

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