Canon 7D vs SX620
The Canon EOS 7D and the Canon PowerShot SX620 HS are two digital cameras that were revealed to the public, respectively, in September 2009 and May 2016. The 7D is a DSLR, while the SX620 is a fixed lens compact. The cameras are based on an APS-C (7D) and a 1/2.3-inch (SX620) sensor. The 7D has a resolution of 17.9 megapixels, whereas the SX620 provides 20.2 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 7D and the Canon PowerShot SX620 HS? 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 Canon SX620. 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 measures are rounded to the nearest millimeter.
The SX620 can be obtained in three different colors (black, silver, red), while the 7D is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon SX620 is considerably smaller (66 percent) than the Canon 7D. It is worth mentioning in this context that the 7D is splash and dust resistant, while the SX620 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX620 has a lens built in, whereas the 7D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 7D and their specifications in the Canon EF Lens Catalog.
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.||Canon SX620||97 mm||57 mm||28 mm||182 g||295||n||May 2016||279|
|3.||Canon G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529|
|4.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|5.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|6.||Canon G3 X||123 mm||77 mm||105 mm||733 g||300||Y||Jun 2015||999|
|7.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529|
|8.||Canon SX410||104 mm||69 mm||85 mm||325 g||185||n||Feb 2015||279|
|9.||Canon SX610||105 mm||61 mm||27 mm||191 g||270||n||Jan 2015||249|
|10.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|11.||Canon 70D||139 mm||104 mm||79 mm||755 g||920||Y||Jul 2013||1,199|
|12.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399|
|13.||Canon 1D Mark IV||156 mm||157 mm||80 mm||1230 g||1500||Y||Oct 2009||4,999|
|14.||Canon 5D Mark II||152 mm||114 mm||75 mm||850 g||850||Y||Sep 2008||3,499|
|15.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299|
|16.||Nikon D7000||132 mm||105 mm||77 mm||780 g||1050||Y||Sep 2010||1,499|
|17.||Sony RX10 III||133 mm||94 mm||127 mm||1051 g||420||Y||Mar 2016||1,499|
|Notes: 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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The SX620 was launched at a lower price than the 7D, despite having a lens built in. 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.
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. 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 more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 7D features an APS-C sensor and the Canon SX620 a 1/2.3-inch sensor. The sensor area in the SX620 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 5.6. The sensor in the 7D has a native 3:2 aspect ratio, while the one in the SX620 offers a 4:3 aspect.
Despite having a smaller sensor, the SX620 offers a higher resolution of 20.2 megapixels, compared with 17.9 MP of the 7D. 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 1.18μm versus 4.31μm for the 7D). However, it should be noted that the SX620 is much more recent (by 6 years and 8 months) than the 7D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX620 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
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 Canon PowerShot SX620 HS are ISO 80 to ISO 3200 (no boost).
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|3.||Canon G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|6.||Canon G3 X||1-inch||20.0||5472||3648||1080/60p||21.4||12.3||521||63|
|7.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|10.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|13.||Canon 1D Mark IV||APS-H||16.0||4896||3264||1080/30p||22.8||12.0||1320||74|
|14.||Canon 5D Mark II||Full Frame||21.0||5616||3744||1080/30p||23.7||11.9||1815||79|
|17.||Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|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 also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/30p).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 7D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX620 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon 7D and Canon SX620 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 7D||optical||Y||3.0 / 920||fixed||n||1/8000s||8.0||Y||n|
|2.||Canon SX620||none||n||3.0 / 922||fixed||n||1/2000s||2.5||Y||Y|
|3.||Canon G9 X Mark II||none||n||3.0 / 1040||fixed||Y||1/2000s||8.2||Y||Y|
|4.||Canon 80D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|5.||Canon SX420||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|6.||Canon G3 X||optional||n||3.2 / 1620||tilting||Y||1/2000s||5.9||Y||Y|
|7.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0||Y||Y|
|8.||Canon SX410||none||n||3.0 / 230||fixed||n||1/4000s||0.5||Y||Y|
|9.||Canon SX610||none||n||3.0 / 922||fixed||n||1/2000s||2.5||Y||Y|
|10.||Canon 7D II||optical||Y||3.0 / 1040||fixed||n||1/8000s||10.0||Y||n|
|11.||Canon 70D||optical||Y||3.0 / 1040||swivel||Y||1/8000s||7.0||Y||n|
|12.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3||Y||n|
|13.||Canon 1D Mark IV||optical||Y||3.0 / 920||fixed||n||1/8000s||10.0||n||n|
|14.||Canon 5D Mark II||optical||Y||3.0 / 920||fixed||n||1/8000s||3.9||n||n|
|15.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3||Y||n|
|16.||Nikon D7000||optical||Y||3.0 / 921||fixed||n||1/8000s||6.0||Y||n|
|17.||Sony RX10 III||2359||Y||3.0 / 1229||tilting||n||1/2000s||14.0||Y||Y|
One feature that is present on the 7D, but is missing on the SX620 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 SX620 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 7D and Canon PowerShot SX620 HS 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.||Canon SX620||-||mono / mono||-||-||micro||2.0||Y||Y||-|
|3.||Canon G9 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Canon 80D||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|5.||Canon SX420||-||mono / mono||-||-||-||2.0||Y||Y||-|
|6.||Canon G3 X||Y||stereo / mono||Y||Y||mini||2.0||Y||Y||-|
|7.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|8.||Canon SX410||-||stereo / mono||-||-||-||2.0||-||-||-|
|9.||Canon SX610||-||- / -||-||-||micro||2.0||Y||Y||-|
|10.||Canon 7D II||Y||stereo / mono||Y||Y||mini||3.0||-||-||-|
|11.||Canon 70D||Y||stereo / mono||Y||-||mini||2.0||Y||-||-|
|12.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|13.||Canon 1D Mark IV||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|14.||Canon 5D Mark II||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|15.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|16.||Nikon D7000||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|17.||Sony RX10 III||Y||stereo / mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the 7D has a hotshoe, while the SX620 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Studio photographers will appreciate that the Canon 7D (unlike the SX620) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The SX620 is a recent model that features in the current product line-up of Canon. In contrast, the 7D has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 7D was succeeded by the Canon 7D Mark II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is the Canon 7D better than the Canon SX620 or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon EOS 7D:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
- Faster burst: Shoots at higher frequency (8 vs 2.5 flaps/sec) to capture the decisive moment.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (800 versus 295) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in September 2009).
Advantages of the Canon PowerShot SX620 HS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Ready to shoot: Comes with an integrated lens, while the 7D requires a separate lens.
- More compact: Is smaller (97x57mm vs 148x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 7D).
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 6 years and 8 months of technical progress since the 7D launch.
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 : 9 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.
How about other alternatives? Do the specifications of the Canon 7D and the Canon SX620 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom 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 says little about, for example, the shooting experience and imaging performance of the 7D and the SX620 in practical situations. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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 (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.||Canon SX620||..||..||..||..||..||4/5||May 2016||279|
|3.||Canon G9 X Mark II||4/5||..||4/5||75/100||4.5/5||4.5/5||Jan 2017||529|
|4.||Canon 80D||4/5||+ +||4.5/5||84/100||4.5/5||4.5/5||Feb 2016||1,199|
|5.||Canon SX420||..||..||..||..||..||3/5||Jan 2016||299|
|6.||Canon G3 X||3.5/5||+||..||..||4.5/5||4/5||Jun 2015||999|
|7.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529|
|8.||Canon SX410||..||o||..||..||..||..||Feb 2015||279|
|9.||Canon SX610||..||..||..||..||4/5||4/5||Jan 2015||249|
|10.||Canon 7D II||4.5/5||+||3.5/5||84/100||4/5||4.5/5||Sep 2014||1,799|
|11.||Canon 70D||5/5||+ +||..||83/100||4.5/5||5/5||Jul 2013||1,199|
|12.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399|
|13.||Canon 1D Mark IV||5/5||..||..||89/100||..||..||Oct 2009||4,999|
|14.||Canon 5D Mark II||4/5||91/100||..||79/100||4/5||..||Sep 2008||3,499|
|15.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299|
|16.||Nikon D7000||4/5||..||..||80/100||4.5/5||4.5/5||Sep 2010||1,499|
|17.||Sony RX10 III||5/5||+||..||84/100||4.5/5||4.5/5||Mar 2016||1,499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time 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.
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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 550D vs Canon SX620
- Canon 7D vs Fujifilm X10
- Canon 7D vs Leica S1
- Canon 7D vs Leica X Vario
- Canon 7D vs Nikon D40X
- Canon 7D vs Panasonic LX100 II
- Canon 7D vs Sony NEX-5
- Canon SX620 vs Canon SX720
- Canon SX620 vs Canon T7i
- Canon SX620 vs Leica M Typ 262
- Canon SX620 vs Nikon D3200
- Canon SX620 vs Olympus E-410
Specifications: Canon 7D vs Canon SX620
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||Canon SX620|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||25-625mm f/3.2-6.6|
|Launch Date||September 2009||May 2016|
|Launch Price||USD 1,699||USD 279|
|Sensor Specs||Canon 7D||Canon SX620|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||22.3 x 14.9 mm||6.17 x 4.55 mm|
|Sensor Area||332.27 mm2||28.0735 mm2|
|Sensor Diagonal||26.8 mm||7.7 mm|
|Sensor Resolution||17.9 Megapixels||20.2 Megapixels|
|Image Resolution||5184 x 3456 pixels||5184 x 3888 pixels|
|Pixel Pitch||4.31 μm||1.18 μm|
|Pixel Density||5.39 MP/cm2||71.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/30p Video||1080/30p Video|
|ISO Setting||100 - 6,400 ISO||80 - 3,200 ISO|
|ISO Boost||100 - 12,800 ISO||no Enhancement|
|Image Processor||DIGIC 4 (Dual)||DIGIC 4+|
|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||Canon SX620|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||100%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||920k dots||922k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 7D||Canon SX620|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||8 shutter flaps/s||2.5 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 7D||Canon SX620|
|External Flash||Hotshoe||no Hotshoe|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||micro HDMI|
|Microphone Port||External MIC port||no MIC socket|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Body Specs||Canon 7D||Canon SX620|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||800 shots per charge||295 shots per charge|
148 x 111 x 74 mm
(5.8 x 4.4 x 2.9 in)
97 x 57 x 28 mm
(3.8 x 2.2 x 1.1 in)
|Camera Weight||860 g (30.3 oz)||182 g (6.4 oz)|
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