Canon 7D vs Olympus E-330
The Canon EOS 7D and the Olympus Evolt E-330 are two digital cameras that were officially introduced, respectively, in September 2009 and January 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (7D) and a Four Thirds (E-330) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Olympus provides 7.4 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 7D and the Olympus Evolt E-330? 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 7D and the Olympus E-330. 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-330 is notably smaller (26 percent) than the Canon 7D. Moreover, the E-330 is markedly lighter (26 percent) than the 7D. It is worth mentioning in this context that the 7D is splash and dust resistant, while the E-330 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 (7D) and the Four Thirds Lens Catalog (E-330).
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.
|1.||Canon 7D||148 mm||111 mm||74 mm||860 g||800||Y||Sep 2009||1,699|
|2.||Olympus E-330||140 mm||87 mm||72 mm||637 g||750||n||Jan 2006||999|
|3.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|4.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|5.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399|
|6.||Canon T2i||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|7.||Canon T1i||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|8.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|9.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299|
|10.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399|
|11.||Canon XT||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|12.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|13.||Leica Digilux 3||146 mm||87 mm||77 mm||606 g||750||n||Sep 2006||1,499|
|14.||Nikon D7000||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499|
|15.||Olympus E-500||130 mm||95 mm||66 mm||479 g||750||n||Sep 2005||599|
|16.||Olympus E-300||147 mm||85 mm||64 mm||624 g||750||n||Sep 2004||799|
|17.||Panasonic L1||146 mm||87 mm||64 mm||606 g||750||n||Feb 2006||999|
|Notes: 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-330 was launched at a markedly lower price (by 41 percent) than the 7D, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 7D features an APS-C sensor and the Olympus E-330 a Four Thirds sensor. The sensor area in the E-330 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 7D has a native 3:2 aspect ratio, while the one in the E-330 offers a 4:3 aspect.
With 17.9MP, the 7D offers a higher resolution than the E-330 (7.4MP), but the 7D has smaller individual pixels (pixel pitch of 4.31μm versus 5.51μm for the E-330). However, the 7D is a much more recent model (by 3 years and 7 months) than the E-330, 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 7D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 7D for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Olympus E-330 are 15.7 x 11.8 inches or 39.8 x 29.9 cm for good quality, 12.5 x 9.4 inches or 31.9 x 23.9 cm for very good quality, and 10.5 x 7.8 inches or 26.6 x 19.9 cm for excellent quality prints.
The Canon EOS 7D has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. The corresponding ISO settings for the Olympus Evolt E-330 are ISO 100 to ISO 400, with the possibility to increase the ISO range to 100-1600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|2.||Olympus E-330||Four Thirds||7.4||3136||2352||none||20.8||10.4||73||52|
|3.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|8.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|13.||Leica Digilux 3||Four Thirds||7.4||3136||2352||none||21.0||10.6||127||53|
|15.||Olympus E-500||Four Thirds||8.0||3264||2448||none||20.7||10.3||45||51|
|16.||Olympus E-300||Four Thirds||8.0||3264||2448||none||20.4||10.1||-40||48|
|17.||Panasonic L1||Four Thirds||7.4||3136||2352||none||20.8||10.4||80||52|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but can also record movies. The 7D indeed provides movie recording capabilities, while the E-330 does not. The highest resolution format that the 7D can use is 1080/30p.
Apart from body and sensor, cameras can and do differ across a range of features. The 7D and the E-330 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 viewfinder in the 7D offers a wider field of view (100%) than the one in the E-330 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 7D has a higher magnification (0.63x vs 0.47x), 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 7D and Olympus E-330 along with similar information for a selection of comparators.
|1.||Canon 7D||optical||Y||3.0 / 920||fixed||n||1/8000s||8.0||Y||n|
|2.||Olympus E-330||optical||n||2.5 / 215||tilting||n||1/4000s||3.0||Y||n|
|3.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0||Y||n|
|4.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|5.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3||Y||n|
|6.||Canon T2i||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7||Y||n|
|7.||Canon T1i||optical||n||3.0 / 920||fixed||n||1/4000s||3.4||Y||n|
|8.||Canon 5D Mark II||optical||Y||3.0 / 920||fixed||n||1/8000s||3.9||n||n|
|9.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3||Y||n|
|10.||Canon 30D||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0||Y||n|
|11.||Canon XT||optical||n||1.8 / 115||fixed||n||1/4000s||3.0||Y||n|
|12.||Canon 20D||optical||Y||1.8 / 118||fixed||n||1/8000s||5.0||Y||n|
|13.||Leica Digilux 3||optical||n||2.5 / 207||fixed||n||1/4000s||3.0||Y||n|
|14.||Nikon D7000||optical||Y||3.0 / 921||fixed||n||1/8000s||6.0||Y||n|
|15.||Olympus E-500||optical||n||2.5 / 215||fixed||n||1/4000s||2.5||Y||n|
|16.||Olympus E-300||optical||n||1.8 / 134||fixed||n||1/4000s||2.5||Y||n|
|17.||Panasonic L1||optical||n||2.5 / 207||fixed||n||1/4000s||3.0||Y||n|
One feature that is present on the 7D, but is missing on the E-330 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
The 7D writes its imaging data to Compact Flash cards, while the E-330 uses Compact Flash or xD Picture cards. The E-330 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 7D only has one slot.
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 7D and Olympus Evolt E-330 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 7D||Y||mono / -||Y||-||mini||2.0||-||-||-|
|2.||Olympus E-330||Y||- / -||-||-||-||2.0||-||-||-|
|3.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|4.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|5.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|6.||Canon T2i||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|7.||Canon T1i||Y||mono / mono||-||-||mini||2.0||-||-||-|
|8.||Canon 5D Mark II||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|9.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|10.||Canon 30D||Y||- / -||-||-||-||2.0||-||-||-|
|11.||Canon XT||Y||- / -||-||-||-||2.0||-||-||-|
|12.||Canon 20D||Y||- / -||-||-||-||1.1||-||-||-|
|13.||Leica Digilux 3||Y||stereo / mono||-||-||-||2.0||-||-||-|
|14.||Nikon D7000||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|15.||Olympus E-500||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Olympus E-300||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Panasonic L1||Y||- / -||-||-||-||2.0||-||-||-|
Studio photographers will appreciate that the Canon 7D (unlike the E-330) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 7D and the E-330 have been discontinued, but can regularly be found used on eBay. The 7D was replaced by the Canon 7D Mark II, while the E-330 does not have a direct successor. 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.
So how do things add up? Which of the two cameras – the Canon 7D or the Olympus E-330 – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS 7D:
- More detail: Offers more megapixels (17.9 vs 7.4MP) with a 59% 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 1080/30p movies.
- 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 (0.63x vs 0.47x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- 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 (920k vs 215k dots).
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 3 flaps/sec) to capture the decisive moment.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More modern: Reflects 3 years and 7 months of technical progress since the E-330 launch.
Advantages of the Olympus Evolt E-330:
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More compact: Is smaller (140x87mm vs 148x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 223g or 26 percent) and is thus easier to take along.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More affordable: Was introduced into a lower priced category (41 percent cheaper at launch).
- More heavily discounted: Has been around for much longer (launched in January 2006).
If the count of relative strengths (bullet points above) is taken as a measure, the 7D is the clear winner of the match-up (16 : 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 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 7D and the Olympus E-330 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 7D or the E-330. 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 expert reviews 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.
|1.||Canon 7D||5/5||+ +||..||84/100||4.5/5||4.5/5||Sep 2009||1,699|
|2.||Olympus E-330||..||..||..||+||o||..||Jan 2006||999|
|3.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799|
|4.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199|
|5.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399|
|6.||Canon T2i||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699|
|7.||Canon T1i||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799|
|8.||Canon 5D Mark II||4/5||91/100||..||79/100||4/5||..||Sep 2008||3,499|
|9.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299|
|10.||Canon 30D||..||+ +||..||+ +||o||..||Feb 2006||1,399|
|11.||Canon XT||..||80/100||..||+ +||o||..||Feb 2005||899|
|12.||Canon 20D||..||..||..||+ +||..||..||Aug 2004||1,499|
|13.||Leica Digilux 3||..||..||..||..||..||..||Sep 2006||1,499|
|14.||Nikon D7000||4/5||..||..||80/100||4.5/5||4.5/5||Sep 2010||1,499|
|15.||Olympus E-500||..||76/100||..||+ +||..||..||Sep 2005||599|
|16.||Olympus E-300||..||..||..||+||o||4.5/5||Sep 2004||799|
|17.||Panasonic L1||..||85/100||..||+||..||3.5/5||Feb 2006||999|
|Notes: (+ +) 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. Thus, a score needs to be put into the context of the launch date and the launch price 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, please note that some of the review sites have changed their methodology and reporting over time.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1000D vs Canon 7D
- Canon 5DS vs Canon 7D
- Canon 7D vs Canon G7 X Mark III
- Canon 7D vs Canon T100
- Canon 7D vs Panasonic FZ2000
- Canon 7D vs Pentax MX-1
- Canon G3 X vs Olympus E-330
- Fujifilm X-T1 vs Olympus E-330
- Nikon D5200 vs Olympus E-330
- Olympus E-330 vs Olympus E-500
- Olympus E-330 vs Pentax MX-1
- Olympus E-330 vs Sony A77 II
Specifications: Canon 7D vs Olympus E-330
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 7D||Olympus E-330|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Four Thirds lenses|
|Launch Date||September 2009||January 2006|
|Launch Price||USD 1,699||USD 999|
|Sensor Specs||Canon 7D||Olympus E-330|
|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|
|Sensor Resolution||17.9 Megapixels||7.4 Megapixels|
|Image Resolution||5184 x 3456 pixels||3136 x 2352 pixels|
|Pixel Pitch||4.31 μm||5.51 μm|
|Pixel Density||5.39 MP/cm2||3.28 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/30p Video||no Video|
|ISO Setting||100 - 6,400 ISO||100 - 400 ISO|
|ISO Boost||100 - 12,800 ISO||100 - 1,600 ISO|
|Image Processor||DIGIC 4 (Dual)||TruePic|
|DXO Sensor Quality (score)||66||..|
|DXO Color Depth (bits)||22.0||..|
|DXO Dynamic Range (EV)||11.7||..|
|DXO Low Light (ISO)||854||..|
|Screen Specs||Canon 7D||Olympus E-330|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||100%||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.5inch|
|LCD Resolution||920k dots||215k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 7D||Olympus E-330|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||8 shutter flaps/s||3 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||CF or XD cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon 7D||Olympus E-330|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||no HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 7D||Olympus E-330|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||800 shots per charge||750 shots per charge|
148 x 111 x 74 mm
(5.8 x 4.4 x 2.9 in)
140 x 87 x 72 mm
(5.5 x 3.4 x 2.8 in)
|Camera Weight||860 g (30.3 oz)||637 g (22.5 oz)|
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