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Canon T7i vs Olympus E-300

The Canon EOS Rebel T7i (called Canon 800D in some regions) and the Olympus Evolt E-300 are two digital cameras that were officially introduced, respectively, in February 2017 and September 2004. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (T7i) and a Four Thirds (E-300) sensor. The Canon has a resolution of 24 megapixels, whereas the Olympus provides 8 MP.

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

Headline Specifications
Canon T7i versus Olympus E-300
Canon T7i Olympus E-300
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Four Thirds lenses
24 MP, APS-C Sensor 8 MP, Four Thirds Sensor
1080/60p Video no Video
ISO 100-25,600 (100 - 51,200) ISO 100-400 (100 - 1,600)
Optical viewfinder Optical viewfinder
3.0 LCD, 1040k dots 1.8 LCD, 134k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
6 shutter flaps per second 2.5 shutter flaps per second
600 shots per battery charge750 shots per battery charge
131 x 100 x 76 mm, 532 g 147 x 85 x 64 mm, 624 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T7i and the Olympus Evolt E-300? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon T7i and the Olympus E-300. 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 T7i vs Olympus E-300
Compare T7i versus E-300 top
Comparison T7i or E-300 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-300 is somewhat smaller (5 percent) than the Canon T7i. However, the E-300 is markedly heavier (17 percent) than the T7i. In this context, it is worth noting that neither the T7i nor the E-300 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 (T7i) and the Four Thirds Lens Catalog (E-300).

Concerning battery life, the T7i gets 600 shots out of its LP-E17 battery, while the E-300 can take 750 images on a single charge of its BLM-1 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Canon T7i 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749i
 
Olympus E-300 5.8 in 3.3 in 2.5 in 22.0 oz 750 n Sep 2004 799i
 
Canon T8i 5.2 in 4.1 in 3.0 in 18.2 oz 800 n Feb 2020 749 i
 
Canon T7 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i
 
Canon 77D 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i
 
Canon SL2 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549i
 
Canon T6i 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749i
 
Canon T6s 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 649i
 
Canon T5i 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649i
 
Canon T4i 5.2 in 3.9 in 3.1 in 20.3 oz 440 n Jun 2012 849i
 
Canon T2i 5.1 in 3.9 in 2.4 in 18.7 oz 440 n Feb 2010 699i
 
Canon T1i 5.1 in 3.9 in 2.4 in 18.3 oz 400 n Mar 2009 799i
 
Leica Digilux 3 5.7 in 3.4 in 3.0 in 21.4 oz 750 n Sep 2006 1,499i
 
Olympus E-330 5.5 in 3.4 in 2.8 in 22.5 oz 750 n Jan 2006 999i
 
Olympus E-400 5.1 in 3.6 in 2.1 in 15.3 oz 500 n Sep 2006 699i
 
Olympus E-500 5.1 in 3.7 in 2.6 in 16.9 oz 750 n Sep 2005 599i
 
Olympus E-1 5.6 in 4.1 in 3.2 in 26.0 oz 750 Y Jun 2003 1,699i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will obviously take relative prices into account. 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 T7i was somewhat cheaper (by 6 percent) than the E-300 at launch, but both cameras fall into the same price category. 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 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 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 T7i features an APS-C sensor and the Olympus E-300 a Four Thirds sensor. The sensor area in the E-300 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 T7i has a native 3:2 aspect ratio, while the one in the E-300 offers a 4:3 aspect.

Canon T7i and Olympus E-300 sensor measures

With 24MP, the T7i offers a higher resolution than the E-300 (8MP), but the T7i has smaller individual pixels (pixel pitch of 3.72μm versus 5.30μm for the E-300). However, the T7i is a much more recent model (by 12 years and 4 months) than the E-300, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon T7i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T7i for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Olympus E-300 are 16.3 x 12.2 inches or 41.5 x 31.1 cm for good quality, 13.1 x 9.8 inches or 33.2 x 24.9 cm for very good quality, and 10.9 x 8.2 inches or 27.6 x 20.7 cm for excellent quality prints.

The T7i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Rebel T7i has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Olympus Evolt E-300 are ISO 100 to ISO 400, with the possibility to increase the ISO range to 100-1600.

T7i versus E-300 MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
 
Canon T7i APS-C 24.0 6000 40001080/60p........
 
Olympus E-300 Four Thirds 8.0 3264 2448none........
 
Canon T8i APS-C 24.0 6000 40004K/24p........
 
Canon T7 APS-C 24.0 6000 40001080/30p........
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
 
Canon SL2 APS-C 24.0 6000 40001080/60p23.613.4104179
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
 
Leica Digilux 3 Four Thirds 7.4 3136 2352none........
 
Olympus E-330 Four Thirds 7.4 3136 2352none........
 
Olympus E-400 Four Thirds 10.0 3648 2736none........
 
Olympus E-500 Four Thirds 8.0 3264 2448none........
 
Olympus E-1 Four Thirds 4.9 2560 1920none........

Many modern cameras are not only capable of taking still images, but can also record movies. The T7i indeed provides movie recording capabilities, while the E-300 does not. The highest resolution format that the T7i can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The T7i and the E-300 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 T7i has a higher magnification than the one of the E-300 (0.51x vs 0.5x), 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 T7i, the Olympus E-300, and comparable cameras.

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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
 
Canon T7ioptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Olympus E-300optical n 1.8 134 fixed n 1/4000s 2.5 Y n
 
Canon T8ioptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n
 
Canon T7optical n 3.0 920 fixed n 1/4000s 3.0 Y n
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Canon SL2optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon T6ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon T6soptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon T4ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon T2ioptical n 3.0 1040 fixed n 1/4000s 3.7 Y n
 
Canon T1ioptical n 3.0 920 fixed n 1/4000s 3.4 Y n
 
Leica Digilux 3optical n 2.5 207 fixed n 1/4000s 3.0 Y n
 
Olympus E-330optical n 2.5 215 tilting n 1/4000s 3.0 Y n
 
Olympus E-400optical n 2.5 215 fixed n 1/4000s 3.0 Y n
 
Olympus E-500optical n 2.5 215 fixed n 1/4000s 2.5 Y n
 
Olympus E-1optical Y 1.8 134 fixed n 1/4000s 3.0 n n

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The T7i has a touchscreen, while the E-300 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The T7i has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-300 does not have a selfie-screen.

The T7i writes its imaging data to SDXC cards, while the E-300 uses Compact Flash or xD Picture cards. The E-300 features dual card slots, which can be very useful in case a memory card fails. In contrast, the T7i 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 T7i and Olympus Evolt E-300 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
 
Canon T7iYstereomonoY-mini2.0YYY
 
Olympus E-300Y-----2.0---
 
Canon T8iYstereomonoY-mini2.0Y-Y
 
Canon T7Ymonomono--mini2.0YY-
 
Canon 77DYstereomonoY-mini2.0YYY
 
Canon SL2YstereomonoY-mini2.0YYY
 
Canon T6iYstereomonoY-mini2.0YY-
 
Canon T6sYstereomonoY-mini2.0YY-
 
Canon T5iYstereomonoY-mini2.0---
 
Canon T4iYstereomonoY-mini2.0---
 
Canon T2iYstereo-Y-mini2.0---
 
Canon T1iYmonomono--mini2.0---
 
Leica Digilux 3Ystereomono---2.0---
 
Olympus E-330Y-----2.0---
 
Olympus E-400Y-----2.0---
 
Olympus E-500Y-----2.0---
 
Olympus E-1Y-----2.0---

It is notable that the T7i offers wifi support, while the E-300 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the T7i and the E-300 have been discontinued, but can regularly be found used on eBay. The E-300 was replaced by the Olympus E-330, while the T7i was followed by the Canon T8i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Olympus websites.

Review summary

So how do things add up? Is the Canon T7i better than the Olympus E-300 or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Canon EOS Rebel T7i:

  • More detail: Offers more megapixels (24 vs 8MP) with a 77% higher linear resolution.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Broader imaging potential: Can record not only still images but also 1080/60p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.51x vs 0.5x).
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 134k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (6 vs 2.5 flaps/sec) to capture the decisive moment.
  • Less heavy: Is lighter (by 92g or 15 percent) and hence easier to carry around.
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More modern: Reflects 12 years and 4 months of technical progress since the E-300 launch.

ilogo

Reasons to prefer the Olympus Evolt E-300:

  • Longer lasting: Gets more shots (750 versus 600) out of a single battery charge.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in September 2004).

If the count of individual advantages (bullet points above) is taken as a guide, the T7i is the clear winner of the match-up (19 : 3 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

T7i 19:03 E-300

How about other alternatives? Do the specifications of the Canon T7i and the Olympus E-300 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 T7i and the E-300 in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (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.

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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon T7i..80/1004.5/54/54/5 Feb 2017 749i
 
Olympus E-300..+oo4.5/5 Sep 2004 799i
 
Canon T8i+......3.5/5 Feb 2020 749 i
 
Canon T7o..3.5/5..3.5/5 Feb 2018 449 i
 
Canon 77D..82/1004.5/54.5/54/5 Feb 2017 899 i
 
Canon SL2+ +78/1004.5/54.5/54.5/5 Jun 2017 549i
 
Canon T6i..75/1004.5/54.5/54.5/5 Feb 2015 749i
 
Canon T6s+77/1004.5/54.5/54.5/5 Feb 2015 649i
 
Canon T5i..76/1004.5/54.5/54.5/5 Mar 2013 649i
 
Canon T4i+ +77/1004.5/54.5/54.5/5 Jun 2012 849i
 
Canon T2i+ +77/1004/55/54.5/5 Feb 2010 699i
 
Canon T1i+ +74/1004.5/55/54.5/5 Mar 2009 799i
 
Leica Digilux 3.......... Sep 2006 1,499i
 
Olympus E-330..+o3.5/5.. Jan 2006 999i
 
Olympus E-40085/100..4/5..4/5 Sep 2006 699i
 
Olympus E-50076/100+ +...... Sep 2005 599i
 
Olympus E-1..+oo.. Jun 2003 1,699i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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 T7i:
Check Ebay offers
Olympus E-300:
Check Ebay offers

Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon T7i vs Olympus E-300

    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 T7i Olympus E-300
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Four Thirds lenses
    Launch Date February 2017 September 2004
    Launch Price USD 749 USD 799
    Sensor Specs Canon T7i Olympus E-300
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.3 x 14.9 mm 17.3 x 13.0 mm
    Sensor Area 332.27 mm2 224.9 mm2
    Sensor Diagonal 26.8 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 24 Megapixels 8 Megapixels
    Image Resolution 6000 x 4000 pixels 3264 x 2448 pixels
    Pixel Pitch 3.72 μm 5.30 μm
    Pixel Density 7.22 MP/cm2 3.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/60p Video no Video
    ISO Setting 100 - 25,600 ISO 100 - 400 ISO
    ISO Boost 100 - 51,200 ISO 100 - 1,600 ISO
    Image Processor DIGIC 7 TruePic
    Screen Specs Canon T7i Olympus E-300
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.51x 0.5x
    LCD Framing Live View
    Rear LCD Size 3.0inch 1.8inch
    LCD Resolution 1040k dots 134k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon T7i Olympus E-300
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 6 shutter flaps/s 2.5 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards CF or XD cards
    Second Storage Option Single card slot Dual card slots
    Connectivity Specs Canon T7i Olympus E-300
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Canon T7i Olympus E-300
    Battery Type LP-E17 BLM-1
    Battery Life (CIPA)600 shots per charge750 shots per charge
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    147 x 85 x 64 mm
    (5.8 x 3.3 x 2.5 in)
    Camera Weight 532 g (18.8 oz) 624 g (22.0 oz)

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