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Canon 20D versus Nikon D3400

The Canon EOS 20D and the Nikon D3400 are two digital cameras that were announced, respectively, in August 2004 and August 2016. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 8.2 megapixel, whereas the Nikon provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Canon 20D vs Nikon D3400

The side-by-side display below illustrates the physical size and weight of the Canon 20D and the Nikon D3400. 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. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the 20D – represents the basis for the calculations across all the size and weight measures).

Compare Canon 20D vs Nikon D3400
Compare 20D versus D3400 top
Compare 20D and D3400 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D3400 is notably smaller (20 percent) than the Canon 20D. Moreover, the D3400 is substantially lighter (42 percent) than the 20D. In this context, it is worth noting that neither the 20D nor the D3400 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. Yet, since both cameras are based around an APS-C sensor, their respective lenses will tend to have similar dimensions and heft. You can find an overview of optics for the two cameras in the Canon EF Lens Catalog (20D) and the Nikon Lens Catalog (D3400).

Concerning battery life, the 20D gets 700 shots out of its BP-511A battery, while the D3400 can take 1200 images on a single charge of its EN-EL14a power pack.

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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon 20D» 5.7 in 4.2 in 2.8 in 27.2 oz 700 n Aug 2004 1,499- i Canon 20D
Nikon D3400« 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499- i Nikon D3400
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i Canon 7D II
Canon 60D« » 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399- i Canon 60D
Canon 7D« » 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i Canon 7D
Canon 50D« » 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299- i Canon 50D
Canon 40D« » 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299- i Canon 40D
Canon 30D« » 5.7 in 4.2 in 2.9 in 27.7 oz 750 n Feb 2006 1,399- i Canon 30D
Canon XT« » 5.0 in 3.7 in 2.5 in 19.0 oz 400 n Feb 2005 899- i Canon XT
Canon 10D« » 5.9 in 4.2 in 3.0 in 30.0 oz 500 n Feb 2003 1,999- i Canon 10D
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899- i Canon Rebel
Nikon D3500« » 4.9 in 3.8 in 2.8 in 12.9 oz 1550 n Aug 2018 429 i i Nikon D3500
Nikon D5600« » 4.9 in 3.8 in 2.8 in 16.4 oz 970 n Nov 2016 699 i i Nikon D5600
Nikon D5500« » 4.9 in 3.8 in 2.8 in 14.8 oz 820 n Jan 2015 899- i Nikon D5500
Nikon D3300« » 4.9 in 3.9 in 3.0 in 15.2 oz 700 n Jan 2014 499- i Nikon D3300
Nikon D3200« » 4.9 in 3.8 in 3.0 in 17.8 oz 540 n Apr 2012 599- i Nikon D3200
Nikon D200« » 5.8 in 4.4 in 2.9 in 32.5 oz 400 Y Nov 2005 1,699- i Nikon D200

The price is, of course, an important factor in any camera decision. 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 D3400 was launched at a markedly lower price (by 67 percent) than the 20D, which puts it into a different market segment. 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: Canon 20D vs Nikon D3400

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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the D3400 is 9 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (20D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of underlying technology, both cameras are build around CMOS sensors.

Canon 20D and Nikon D3400 sensor measures

With 24MP, the D3400 offers a higher resolution than the 20D (8.2MP), but the D3400 has smaller individual pixels (pixel pitch of 3.91μm versus 6.42μm for the 20D). Yet, the D3400 is a much more recent model (by 12 years) than the 20D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the D3400 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

20D versus D3400 MP

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 consideration, the D3400 offers substantially better image quality than the 20D (overall score 24 points higher). The advantage is based on 2.9 bits higher color depth, 2.9 EV in additional dynamic range, and 0.7 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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Canon 20D» APS-C 8.2 3504 2336-21.911.072162Canon 20D
Nikon D3400« APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270Canon 7D II
Canon 60D« » APS-C 17.9 5184 34561080/30p22.211.581366Canon 60D
Canon 7D« » APS-C 17.9 5184 34561080/30p22.011.785466Canon 7D
Canon 50D« » APS-C 15.1 4752 3168-21.811.469663Canon 50D
Canon 40D« » APS-C 10.1 3888 2592-22.111.370364Canon 40D
Canon 30D« » APS-C 8.2 3504 2336-21.510.873659Canon 30D
Canon XT« » APS-C 8.0 3456 2304-21.810.863760Canon XT
Canon 10D« » APS-C 6.3 3072 2048-21.110.957157Canon 10D
Canon Rebel« » APS-C 6.3 3072 2048-21.010.854455Canon Rebel
Nikon D3500« » APS-C 24.0 6000 40001080/60p----Nikon D3500
Nikon D5600« » APS-C 24.0 6000 40001080/60p24.114.0130684Nikon D5600
Nikon D5500« » APS-C 24.0 6000 40001080/60p24.114.0143884Nikon D5500
Nikon D3300« » APS-C 24.0 6000 40001080/60p24.312.8138582Nikon D3300
Nikon D3200« » APS-C 24.1 6016 40001080/30p24.113.2113181Nikon D3200
Nikon D200« » APS-C 10.0 3872 2592-22.311.558364Nikon D200

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D3400 indeed provides for movie recording, while the 20D does not. The highest resolution format that the D3400 can use is 1080/60p.

 

Feature comparison: Canon 20D vs Nikon D3400

Apart from body and sensor, cameras can and do differ across a variety of features. The 20D and the D3400 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 following table reports on some other key feature differences and similarities of the Canon 20D, the Nikon D3400, and comparable cameras. The full specs-sheets can be found in the camera manual or in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Canon 20D»optical Y 1.8 118 fixed n 8000 5.0 Y n Canon 20D
Nikon D3400«optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3400
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n Canon 7D II
Canon 60D« »optical Y 3.0 1040 swivel n 8000 5.3 Y n Canon 60D
Canon 7D« »optical Y 3.0 920 fixed n 8000 8.0 Y n Canon 7D
Canon 50D« »optical Y 3.0 920 fixed n 8000 6.3 Y n Canon 50D
Canon 40D« »optical Y 3.0 230 fixed n 8000 6.5 Y n Canon 40D
Canon 30D« »optical Y 2.5 230 fixed n 8000 5.0 Y n Canon 30D
Canon XT« »optical n 1.8 115 fixed n 4000 3.0 Y n Canon XT
Canon 10D« »optical Y 1.8 118 fixed n 4000 3.0 Y n Canon 10D
Canon Rebel« »optical n 1.8 118 fixed n 4000 2.5 Y n Canon Rebel
Nikon D3500« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3500
Nikon D5600« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5600
Nikon D5500« »optical n 3.2 1037 swivel Y 4000 5.0 Y n Nikon D5500
Nikon D3300« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3300
Nikon D3200« »optical n 3.0 921 fixed n 4000 4.0 Y n Nikon D3200
Nikon D200« »optical Y 2.5 230 fixed n 8000 5.0 Y n Nikon D200

One feature that is present on the 20D, but is missing on the D3400 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.

Both the 20D and the D3400 have been discontinued, but can regularly be found used on eBay. The 20D was replaced by the Canon 30D, while the D3400 was followed by the Nikon D3500.

Review summary: Canon 20D vs Nikon D3400

So how do things add up? Is the Canon 20D better than the Nikon D3400 or vice versa? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Canon EOS 20D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • More heavily discounted: Has been available for much longer (launched in August 2004).

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Arguments in favor of the Nikon D3400:

  • More detail: Has more megapixels (24 vs 8.2MP), which boosts linear resolution by 71%.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Scores substantially higher (24 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.9 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.7 stops ISO advantage).
  • Broader imaging potential: Can capture not only stills but also 1080/60p 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 (921k vs 118k dots).
  • More compact: Is smaller (124x98mm vs 144x106mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 325g or 42 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (1200 versus 700) out of a single battery charge.
  • More affordable: Was introduced into a lower priced category (67 percent cheaper at launch).
  • More modern: Reflects 12 years of technical progress since the 20D launch.

If the count of relative strengths (bullet points above) is taken as a measure, the D3400 is the clear winner of the contest (14 : 4 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.

20D 04:14 D3400

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 20D or the D3400 handle or 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 summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon 20D»-HiRec-rev- Aug 2004 1,499- i Canon 20D
Nikon D3400«Rec76/1004/54.5/54.5/5 Aug 2016 499- i Nikon D3400
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i Canon 7D II
Canon 60D« »Rec79/1004/55/54.5/5 Aug 2010 1,399- i Canon 60D
Canon 7D« »HiRec84/1004.5/55/54.5/5 Sep 2009 1,699- i Canon 7D
Canon 50D« »HiRecHiRec4.5/55/54.5/5 Aug 2008 1,299- i Canon 50D
Canon 40D« »HiRecHiRec4.5/5rev4.5/5 Aug 2007 1,299- i Canon 40D
Canon 30D« »HiRecHiRecrevrev- Feb 2006 1,399- i Canon 30D
Canon XT« »80/100HiRecrevrev- Feb 2005 899- i Canon XT
Canon 10D« »-HiRec-rev- Feb 2003 1,999- i Canon 10D
Canon Rebel« »-HiRec-rev- Aug 2003 899- i Canon Rebel
Nikon D3500« »----- Aug 2018 429 i i Nikon D3500
Nikon D5600« »-79/1004.5/54.5/54/5 Nov 2016 699 i i Nikon D5600
Nikon D5500« »Rec79/1004.5/55/54.5/5 Jan 2015 899- i Nikon D5500
Nikon D3300« »Rec77/1004.5/54.5/54.5/5 Jan 2014 499- i Nikon D3300
Nikon D3200« »HiRec73/1004.5/54.5/54.5/5 Apr 2012 599- i Nikon D3200
Nikon D200« »HiRecHiRecrev5/5- Nov 2005 1,699- i Nikon D200

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. If the camera you are interested in is not available, please contact me, and I will try to locate and add the respective data to the application.

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