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Canon 400D vs SX620

The Canon EOS 400D (called Canon XTi in some regions) and the Canon PowerShot SX620 HS are two digital cameras that were revealed to the public, respectively, in August 2006 and May 2016. The 400D is a DSLR, while the SX620 is a fixed lens compact. The cameras are based on an APS-C (400D) and a 1/2.3-inch (SX620) sensor. The 400D has a resolution of 10.1 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.

Headline Specifications
Canon 400D versus Canon SX620
Canon 400D Canon SX620
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 25-625mm f/3.2-6.6
10.1 MP, APS-C Sensor 20.2 MP, 1/2.3" Sensor
no Video 1080/30p Video
ISO 100-1,600 ISO 80-3,200
Optical viewfinder No viewfinder, LCD framing
2.5 LCD, 230k dots 3.0 LCD, 922k dots
Fixed screen (not touch-sensitive) Fixed screen (not touch-sensitive)
3 shutter flaps per second 2.5 shutter flaps per second
370 shots per battery charge295 shots per battery charge
127 x 84 x 65 mm, 556 g 97 x 57 x 28 mm, 182 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 400D 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.

Body comparison

An illustration of the physical size and weight of the Canon 400D and the Canon SX620 is provided 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 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 400D is only available in black.

Size Canon 400D vs Canon SX620
Compare 400D versus SX620 top
Comparison 400D or SX620 rear

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 (48 percent) than the Canon 400D. In this context, it is worth noting that neither the 400D nor the SX620 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX620 has a lens built in, whereas the 400D 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 400D and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the 400D gets 370 shots out of its NB-2LH battery, while the SX620 can take 295 images on a single charge of its NB-13L power pack.

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, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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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 400D 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799i
 
Canon SX620 97 mm 57 mm 28 mm 182 g 295 n May 2016 279 i
 
Canon G9 X Mark II 98 mm 58 mm 31 mm 206 g 235 n Jan 2017 529 i
 
Canon SX420 104 mm 69 mm 85 mm 325 g 195 n Jan 2016 299 i
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749i
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649i
 
Canon G9 X 98 mm 58 mm 31 mm 209 g 220 n Oct 2015 529i
 
Canon SX410 104 mm 69 mm 85 mm 325 g 185 n Feb 2015 279i
 
Canon SX610 105 mm 61 mm 27 mm 191 g 270 n Jan 2015 249i
 
Canon 650D 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849i
 
Canon 1100D 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449i
 
Canon 550D 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699i
 
Canon 500D 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799i
 
Canon 450D 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799i
 
Canon 40D 146 mm 108 mm 74 mm 822 g 750 n Aug 2007 1,299i
 
Canon 350D 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 899i
 
Nikon D40X 124 mm 94 mm 64 mm 522 g 520 n Mar 2007 729i
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 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 400D, 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.

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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units 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 400D features an APS-C sensor and the Canon SX620 a 1/2.3-inch sensor. The sensor area in the SX620 is 91 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 400D has a native 3:2 aspect ratio, while the one in the SX620 offers a 4:3 aspect.

Technology-wise, the SX620 uses a more advanced image processing engine (DIGIC 4+) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

Canon 400D and Canon SX620 sensor measures

Despite having a smaller sensor, the SX620 offers a higher resolution of 20.2 megapixels, compared with 10.1 MP of the 400D. 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 5.71μm for the 400D). However, it should be noted that the SX620 is much more recent (by 9 years and 8 months) than the 400D, 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 resolution advantage of the Canon SX620 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX620 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Canon 400D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.

The Canon EOS 400D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon PowerShot SX620 HS are ISO 80 to ISO 3200 (no boost).

400D versus SX620 MP

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 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 400D APS-C 10.1 3888 2592none22.111.066462
 
Canon SX620 1/2.3 20.2 5184 38881080/30p........
 
Canon G9 X Mark II 1-inch 20.0 5472 36481080/60p21.912.552265
 
Canon SX420 1/2.3 19.9 5152 3864720/25p........
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570
 
Canon G9 X 1-inch 20.0 5472 36481080/60p21.512.349563
 
Canon SX410 1/2.3 19.9 5152 3864720/30p........
 
Canon SX610 1/2.3 20.2 5184 38881080/30p........
 
Canon 650D APS-C 17.9 5184 34561080/30p21.711.272262
 
Canon 1100D APS-C 12.2 4272 2848720/30p21.911.075562
 
Canon 550D APS-C 17.9 5184 34561080/30p22.111.578466
 
Canon 500D APS-C 15.1 4752 31681080/20p21.711.566363
 
Canon 450D APS-C 12.2 4272 2848none21.910.869261
 
Canon 40D APS-C 10.1 3888 2592none22.111.370364
 
Canon 350D APS-C 8.0 3456 2304none21.810.863760
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663

Many modern cameras cannot only take still pictures, but also record videos. The SX620 indeed provides for movie recording, while the 400D does not. The highest resolution format that the SX620 can use is 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the 400D 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 following table reports on some other key feature differences and similarities of the Canon 400D, the Canon SX620, 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 400Doptical n 2.5 230 fixed n 1/4000s 3.0 Y n
 
Canon SX620none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon G9 X Mark IInone n 3.0 1040 fixed Y 1/2000s 8.2 Y Y
 
Canon SX420none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon 750Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 760Doptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon G9 Xnone n 3.0 1040 fixed Y 1/2000s 6.0 Y Y
 
Canon SX410none n 3.0 230 fixed n 1/4000s 0.5 Y Y
 
Canon SX610none n 3.0 922 fixed n 1/2000s 2.5 Y Y
 
Canon 650Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 1100Doptical n 2.7 230 fixed n 1/4000s 3.0 Y n
 
Canon 550Doptical n 3.0 1040 fixed n 1/4000s 3.7 Y n
 
Canon 500Doptical n 3.0 920 fixed n 1/4000s 3.4 Y n
 
Canon 450Doptical n 3.0 230 fixed n 1/4000s 3.5 Y n
 
Canon 40Doptical Y 3.0 230 fixed n 1/8000s 6.5 Y n
 
Canon 350Doptical n 1.8 115 fixed n 1/4000s 3.0 Y n
 
Nikon D40Xoptical n 2.5 230 fixed n 1/4000s 3.0 Y n

The 400D writes its imaging data to Compact Flash cards, while the SX620 uses SDXC cards.

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 400D and Canon PowerShot SX620 HS 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 400DY-----2.0---
 
Canon SX620-monomono--micro2.0YY-
 
Canon G9 X Mark II-stereomono--micro2.0YYY
 
Canon SX420-monomono---2.0YY-
 
Canon 750DYstereomonoY-mini2.0YY-
 
Canon 760DYstereomonoY-mini2.0YY-
 
Canon G9 X-stereomono--micro2.0YY-
 
Canon SX410-stereomono---2.0---
 
Canon SX610-----micro2.0YY-
 
Canon 650DYstereomonoY-mini2.0---
 
Canon 1100DYstereomono--mini2.0---
 
Canon 550DYstereo-Y-mini2.0---
 
Canon 500DYmonomono--mini2.0---
 
Canon 450DY----mini2.0---
 
Canon 40DY-----2.0---
 
Canon 350DY-----2.0---
 
Nikon D40XY-----2.0---

It is notable that the 400D has a hotshoe, while the SX620 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

The SX620 is a recent model that features in the current product line-up of Canon. In contrast, the 400D has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 400D was succeeded by the Canon 450D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So how do things add up? Is the Canon 400D better than the Canon SX620 or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Canon EOS 400D:

  • 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.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (3 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 (370 versus 295) on a single battery charge.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • More heavily discounted: Has been available for much longer (launched in August 2006).


Reasons to prefer the Canon PowerShot SX620 HS:

  • More detail: Has more megapixels (20.2 vs 10.1MP), which boosts linear resolution by 39%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better jpgs: Has a more modern image processing engine (DIGIC 4+ vs DIGIC II).
  • Broader imaging potential: Can capture not only stills but also 1080/30p video.
  • 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 (922k vs 230k dots).
  • Ready to shoot: Comes with an integrated lens, while the 400D requires a separate lens.
  • More compact: Is smaller (97x57mm vs 127x84mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the 400D).
  • 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 9 years and 8 months of technical progress since the 400D launch.

If the number of relative strengths (bullet points above) is taken as a guide, the SX620 emerges as the winner of the match-up (14 : 12 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.

400D 12:14 SX620

How about other alternatives? Do the specifications of the Canon 400D 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the 400D and the SX620 in practical situations. 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 (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 400D+ ++ +o4.5/54/5 Aug 2006 799i
 
Canon SX620........4/5 May 2016 279 i
 
Canon G9 X Mark II..75/1004.5/54.5/54.5/5 Jan 2017 529 i
 
Canon SX420........3/5 Jan 2016 299 i
 
Canon 750D..75/1004.5/54.5/54.5/5 Feb 2015 749i
 
Canon 760D+77/1004.5/54.5/54.5/5 Feb 2015 649i
 
Canon G9 X+ +..4.5/54/54.5/5 Oct 2015 529i
 
Canon SX410o........ Feb 2015 279i
 
Canon SX610....4/5..4/5 Jan 2015 249i
 
Canon 650D+ +77/1004.5/54.5/54.5/5 Jun 2012 849i
 
Canon 1100D80/10069/1004/54/54.5/5 Feb 2011 449i
 
Canon 550D+ +77/1004/55/54.5/5 Feb 2010 699i
 
Canon 500D+ +74/1004.5/55/54.5/5 Mar 2009 799i
 
Canon 450D+ ++ +4/55/54.5/5 Jan 2008 799i
 
Canon 40D+ ++ +4.5/5o4.5/5 Aug 2007 1,299i
 
Canon 350D80/100+ +oo.. Feb 2005 899i
 
Nikon D40X79/100+ +4/5o4/5 Mar 2007 729i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Canon 400D:
Check Ebay offers
Canon SX620:
Check Amazon price

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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

~

    Specifications: Canon 400D 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 Specifications
    Camera Model Canon 400D 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 August 2006 May 2016
    Launch Price USD 799 USD 279
    Sensor Specs Canon 400D Canon SX620
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor 1/2.3" Sensor
    Sensor Size 22.2 x 14.8 mm 6.17 x 4.55 mm
    Sensor Area 328.56 mm2 28.0735 mm2
    Sensor Diagonal 26.7 mm 7.7 mm
    Crop Factor 1.6x 5.6x
    Sensor Resolution 10.1 Megapixels 20.2 Megapixels
    Image Resolution 3888 x 2592 pixels 5184 x 3888 pixels
    Pixel Pitch 5.71 μm 1.18 μm
    Pixel Density 3.07 MP/cm2 71.80 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability no Video 1080/30p Video
    ISO Setting 100 - 1,600 ISO 80 - 3,200 ISO
    Image Processor DIGIC II DIGIC 4+
    DXO Sensor Quality (score) 62 ..
    DXO Color Depth (bits) 22.1 ..
    DXO Dynamic Range (EV) 11.0 ..
    DXO Low Light (ISO) 664 ..
    Screen Specs Canon 400D Canon SX620
    Viewfinder Type Optical viewfinder no viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.49x
    LCD Framing Live View
    Rear LCD Size 2.5inch 3.0inch
    LCD Resolution 230k dots 922k dots
    LCD Attachment Fixed screen Fixed screen
    Shooting Specs Canon 400D Canon SX620
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 3 shutter flaps/s 2.5 shutter flaps/s
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium CF cards SDXC cards
    Second Storage Option Single card slot Single card slot
    Connectivity Specs Canon 400D Canon SX620
    External Flash Hotshoe no Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port no HDMI micro HDMI
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Canon 400D Canon SX620
    Battery Type NB-2LH NB-13L
    Battery Life (CIPA)370 shots per charge295 shots per charge
    Body Dimensions 127 x 84 x 65 mm
    (5.0 x 3.3 x 2.6 in)
    97 x 57 x 28 mm
    (3.8 x 2.2 x 1.1 in)
    Camera Weight 556 g (19.6 oz) 182 g (6.4 oz)

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