Canon 350D vs Olympus E-P3
The Canon EOS 350D (called Canon XT in some regions) and the Olympus PEN E-P3 are two digital cameras that were announced, respectively, in February 2005 and June 2011. The 350D is a DSLR, while the E-P3 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (350D) and a Four Thirds (E-P3) sensor. The Canon has a resolution of 8 megapixels, whereas the Olympus provides 12.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 350D and the Olympus PEN E-P3? 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.
The side-by-side display below illustrates the physical size and weight of the Canon 350D and the Olympus E-P3. 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.
The 350D can be obtained in two different colors (black, silver), while the E-P3 is available in three color-versions (black, silver, white).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-P3 is notably smaller (29 percent) than the Canon 350D. Moreover, the E-P3 is markedly lighter (32 percent) than the 350D. In this context, it is worth noting that neither the 350D nor the E-P3 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 (350D) and the Micro Four Thirds Lens Catalog (E-P3). Mirrorless cameras, such as the E-P3, 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.
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.
|1.||Canon 350D||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899||ebay.com|
|2.||Olympus E-P3||122 mm||69 mm||34 mm||369 g||330||n||Jun 2011||799||ebay.com|
|3.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899||ebay.com|
|4.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749||ebay.com|
|5.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649||ebay.com|
|6.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849||ebay.com|
|7.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799||ebay.com|
|8.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|9.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399||ebay.com|
|10.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|11.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499||ebay.com|
|12.||Canon 300D||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899||ebay.com|
|13.||Olympus E-PL2||114 mm||72 mm||42 mm||362 g||280||n||Jan 2011||599||ebay.com|
|14.||Olympus E-PL3||110 mm||64 mm||37 mm||313 g||300||n||Jun 2011||599||ebay.com|
|15.||Olympus E-PL1||115 mm||72 mm||42 mm||334 g||290||n||Feb 2010||599||ebay.com|
|16.||Olympus E-P1||121 mm||70 mm||36 mm||355 g||300||n||Jun 2009||799||ebay.com|
|17.||Olympus E-P2||121 mm||70 mm||36 mm||355 g||300||n||Nov 2009||799||ebay.com|
|Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. 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-P3 was launched at a somewhat lower price (by 11 percent) than the 350D, 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.
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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 350D features an APS-C sensor and the Olympus E-P3 a Four Thirds sensor. The sensor area in the E-P3 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 350D has a native 3:2 aspect ratio, while the one in the E-P3 offers a 4:3 aspect.
Despite having a smaller sensor, the E-P3 offers a higher resolution of 12.2 megapixels, compared with 8 MP of the 350D. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.29μm versus 6.41μm for the 350D). However, it should be noted that the E-P3 is much more recent (by 6 years and 4 months) than the 350D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Olympus E-P3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the E-P3 for good quality output (200 dots per inch) amounts to 20.2 x 15.1 inches or 51.2 x 38.4 cm, for very good quality (250 dpi) 16.1 x 12.1 inches or 41 x 30.7 cm, and for excellent quality (300 dpi) 13.4 x 10.1 inches or 34.1 x 25.6 cm. The corresponding values for the Canon 350D are 17.3 x 11.5 inches or 43.9 x 29.3 cm for good quality, 13.8 x 9.2 inches or 35.1 x 23.4 cm for very good quality, and 11.5 x 7.7 inches or 29.3 x 19.5 cm for excellent quality prints.
The Canon EOS 350D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Olympus PEN E-P3 are ISO 200 to ISO 12800 (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.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 review, the 350D has a notably higher overall DXO score than the E-P3 (overall score 9 points higher), which gives it an advantage in terms of imaging quality. This advantage is based on 1 bits higher color depth, 0.7 EV in additional dynamic range, and 0.2 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|2.||Olympus E-P3||Four Thirds||12.2||4032||3024||1080/60i||20.8||10.1||536||51|
|13.||Olympus E-PL2||Four Thirds||12.2||4032||3024||720/30p||21.4||10.2||573||55|
|14.||Olympus E-PL3||Four Thirds||12.2||4032||3024||1080/60i||20.9||10.3||499||52|
|15.||Olympus E-PL1||Four Thirds||12.2||4032||3024||720/30p||21.5||10.1||487||54|
|16.||Olympus E-P1||Four Thirds||12.2||4032||3024||720/30p||21.4||10.4||536||55|
|17.||Olympus E-P2||Four Thirds||12.2||4032||3024||720/30p||21.5||10.4||505||56|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The E-P3 indeed provides for movie recording, while the 350D does not. The highest resolution format that the E-P3 can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 350D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the E-P3 relies on live view and the rear LCD for framing. That said, the E-P3 can be equipped with an optional viewfinder – the VF-3. The following table reports on some other key feature differences and similarities of the Canon 350D, the Olympus E-P3, and comparable cameras.
|1.||Canon 350D||optical||n||1.8 / 115||fixed||n||1/4000s||3.0/s||Y||n|
|2.||Olympus E-P3||optional||n||3.0 / 614||fixed||Y||1/4000s||3.0/s||Y||Y|
|3.||Canon 77D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||6.0/s||Y||n|
|4.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|5.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|6.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0/s||Y||n|
|7.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4/s||Y||n|
|8.||Canon 450D||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|9.||Canon 30D||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0/s||Y||n|
|10.||Canon 400D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|11.||Canon 20D||optical||Y||1.8 / 118||fixed||n||1/8000s||5.0/s||Y||n|
|12.||Canon 300D||optical||n||1.8 / 118||fixed||n||1/4000s||2.5/s||Y||n|
|13.||Olympus E-PL2||optional||n||3.0 / 460||fixed||n||1/4000s||3.0/s||Y||Y|
|14.||Olympus E-PL3||optional||n||3.0 / 460||tilting||n||1/4000s||5.5/s||n||Y|
|15.||Olympus E-PL1||optional||n||2.7 / 230||fixed||n||1/2000s||3.0/s||Y||Y|
|16.||Olympus E-P1||none||n||3.0 / 230||fixed||n||1/4000s||3.0/s||n||Y|
|17.||Olympus E-P2||optional||n||3.0 / 230||fixed||n||1/4000s||3.0/s||n||Y|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The E-P3 has a touchscreen, while the 350D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The 350D writes its imaging data to Compact Flash cards, while the E-P3 uses SDXC cards.
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 350D and Olympus PEN E-P3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 350D||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Olympus E-P3||Y||stereo / -||-||-||mini||2.0||-||-||-|
|3.||Canon 77D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|4.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|5.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|6.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|7.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|8.||Canon 450D||Y||- / -||-||-||mini||2.0||-||-||-|
|9.||Canon 30D||Y||- / -||-||-||-||2.0||-||-||-|
|10.||Canon 400D||Y||- / -||-||-||-||2.0||-||-||-|
|11.||Canon 20D||Y||- / -||-||-||-||1.1||-||-||-|
|12.||Canon 300D||Y||- / -||-||-||-||1.1||-||-||-|
|13.||Olympus E-PL2||Y||stereo / -||-||-||mini||2.0||-||-||-|
|14.||Olympus E-PL3||Y||stereo / -||-||-||mini||2.0||-||-||-|
|15.||Olympus E-PL1||Y||stereo / -||-||-||mini||2.0||-||-||-|
|16.||Olympus E-P1||Y||stereo / -||-||-||mini||2.0||-||-||-|
|17.||Olympus E-P2||Y||stereo / -||-||-||mini||2.0||-||-||-|
Both the 350D and the E-P3 have been discontinued, but can regularly be found used on ebay. The 350D was replaced by the Canon 400D, while the E-P3 was followed by the Olympus E-P5. Further information on the features and operation of the 350D and E-P3 can be found, respectively, in the Canon 350D Manual (free pdf) or the online Olympus E-P3 Manual.
So how do things add up? Is the Canon 350D better than the Olympus E-P3 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS 350D:
- Better image quality: Scores markedly higher (9 points) in the DXO overall assessment.
- More dynamic range: Captures a larger spectrum of light and dark details (0.7 EV of extra DR).
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Longer lasting: Can take more shots (400 versus 330) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in February 2005).
Arguments in favor of the Olympus PEN E-P3:
- More detail: Has more megapixels (12.2 vs 8MP), which boosts linear resolution by 21%.
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- 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 (614k vs 115k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More compact: Is smaller (122x69mm vs 127x94mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 171g or 32 percent) and is thus easier to take along.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was released into a lower priced segment (11 percent cheaper at launch).
- More modern: Reflects 6 years and 4 months of technical progress since the 350D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the E-P3 is the clear winner of the contest (11 : 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.
How about other alternatives? Do the specifications of the Canon 350D and the Olympus E-P3 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 350D or the E-P3 perform in practice. 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.
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.
|1.||Canon 350D||..||80/100||..||+ +||o||..||Feb 2005||899||ebay.com|
|2.||Olympus E-P3||..||83/100||..||74/100||4.5/5||4.5/5||Jun 2011||799||ebay.com|
|3.||Canon 77D||4.5/5||..||4/5||82/100||4.5/5||4/5||Feb 2017||899||ebay.com|
|4.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749||ebay.com|
|5.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649||ebay.com|
|6.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849||ebay.com|
|7.||Canon 500D||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799||ebay.com|
|8.||Canon 450D||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|9.||Canon 30D||..||+ +||..||+ +||o||..||Feb 2006||1,399||ebay.com|
|10.||Canon 400D||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|11.||Canon 20D||..||..||..||+ +||..||..||Aug 2004||1,499||ebay.com|
|12.||Canon 300D||..||..||..||+ +||..||..||Aug 2003||899||ebay.com|
|13.||Olympus E-PL2||3/5||83/100||..||71/100||4.5/5||4.5/5||Jan 2011||599||ebay.com|
|14.||Olympus E-PL3||3/5||+ +||..||72/100||4.5/5||4/5||Jun 2011||599||ebay.com|
|15.||Olympus E-PL1||..||86/100||..||69/100||4/5||4.5/5||Feb 2010||599||ebay.com|
|16.||Olympus E-P1||..||+||..||66/100||4/5||4.5/5||Jun 2009||799||ebay.com|
|17.||Olympus E-P2||3/5||+||..||69/100||4/5||4.5/5||Nov 2009||799||ebay.com|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time 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.
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.
- Canon 350D vs Canon G1 X
- Canon 350D vs Canon S120
- Canon 350D vs Canon XSi
- Canon 350D vs Nikon Z7
- Canon 350D vs Olympus E-450
- Canon 350D vs Panasonic GX800
- Canon M6 vs Olympus E-P3
- Canon T7 vs Olympus E-P3
- Kodak AZ901 vs Olympus E-P3
- Nikon 1 J4 vs Olympus E-P3
- Nikon D750 vs Olympus E-P3
- Olympus E-P3 vs Sony A6300
Specifications: Canon 350D vs Olympus E-P3
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 Model||Canon 350D||Olympus E-P3|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Micro Four Thirds lenses|
|Launch Date||February 2005||June 2011|
|Launch Price||USD 899||USD 799|
|Sensor Specs||Canon 350D||Olympus E-P3|
|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|
|Sensor Resolution||8 Megapixels||12.2 Megapixels|
|Image Resolution||3456 x 2304 pixels||4032 x 3024 pixels|
|Pixel Pitch||6.41 μm||4.29 μm|
|Pixel Density||2.42 MP/cm2||5.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100 - 1,600 ISO||200 - 12,800 ISO|
|Image Processor||DIGIC II||TruePic VI|
|DXO Sensor Quality (score)||60||51|
|DXO Color Depth (bits)||21.8||20.8|
|DXO Dynamic Range (EV)||10.8||10.1|
|DXO Low Light (ISO)||637||536|
|Screen Specs||Canon 350D||Olympus E-P3|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||95%|
|LCD Framing||Live View|
|Rear LCD Size||1.8inch||3.0inch|
|LCD Resolution||115k dots||614k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 350D||Olympus E-P3|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||3 shutter flaps/s||3 shutter flaps/s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Single or Dual Card Slots||Single card slot||Single card slot|
|Connectivity Specs||Canon 350D||Olympus E-P3|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 350D||Olympus E-P3|
|Battery Life (CIPA)||400 shots per charge||330 shots per charge|
127 x 94 x 64 mm
(5.0 x 3.7 x 2.5 in)
122 x 69 x 34 mm
(4.8 x 2.7 x 1.3 in)
|Camera Weight||540 g (19.0 oz)||369 g (13.0 oz)|
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