PW

Canon 30D versus Canon 70D

The Canon EOS 30D and the Canon EOS 70D are two enthusiast cameras that were revealed to the public, respectively, in February 2006 and July 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 30D has a resolution of 8.2 megapixel, whereas the 70D provides 20 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 30D vs Canon 70D

An illustration of the physical size and weight of the Canon 30D and the Canon 70D is provided in the side-by-side display below. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the 30D – represents 100 percent across all the size and weight measures).

Compare Canon 30D vs Canon 70D
30D versus 70D top view
30D and 70D rear side
Body view (30D on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 70D is notably smaller (5 percent) than the Canon 30D. Moreover, the 70D is slightly lighter (4 percent) than the 30D. It is noteworthy in this context that the 70D is splash and dust-proof, while the 30D 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the 30D gets 750 shots out of its BP-511A battery, while the 70D can take 920 images on a single charge of its LP-E6 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 30D (⇒ rgt) 144 mm 106 mm 74 mm 785 g 750 no 2006 1,399discont. check
Canon 70D (⇒ lft) 139 mm 104 mm 79 mm 755 g 920 YES 2013 1,199discont. check
Canon 80D (⇒ lft | rgt) 139 mm 105 mm 79 mm 730 g 960 YES 2016 1,199 latest check
Canon G3 X (⇒ lft | rgt) 123 mm 77 mm 105 mm 733 g 300 YES 2015 999 latest check
Canon 7D II (⇒ lft | rgt) 149 mm 112 mm 78 mm 910 g 670 YES 2014 1,799 latest check
Canon 60D (⇒ lft | rgt) 145 mm 106 mm 79 mm 755 g 1100 YES 2010 1,399discont. check
Canon 7D (⇒ lft | rgt) 148 mm 111 mm 74 mm 860 g 800 YES 2009 1,699discont. check
Canon 50D (⇒ lft | rgt) 146 mm 108 mm 74 mm 822 g 800 YES 2008 1,299discont. check
Canon 40D (⇒ lft | rgt) 146 mm 108 mm 74 mm 822 g 750 no 2007 1,299discont. check
Canon XTi (⇒ lft | rgt) 127 mm 84 mm 65 mm 556 g 370 no 2006 799discont. check
Canon XT (⇒ lft | rgt) 127 mm 94 mm 64 mm 540 g 400 no 2005 899discont. check
Canon 20D (⇒ lft | rgt) 144 mm 106 mm 72 mm 770 g 700 no 2004 1,499discont. check
Canon 10D (⇒ lft | rgt) 150 mm 107 mm 75 mm 850 g 500 no 2003 1,999discont. check
Nikon D7100 (⇒ lft | rgt) 136 mm 107 mm 76 mm 765 g 950 YES 2013 1,199discont. check
Nikon D80 (⇒ lft | rgt) 132 mm 103 mm 77 mm 668 g 600 no 2006 999discont. check
Nikon D200 (⇒ lft | rgt) 147 mm 113 mm 74 mm 920 g 400 YES 2005 1,699discont. check

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 70D was launched at a somewhat lower price (by 14 percent) than the 30D, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.


Sensor comparison: Canon 30D vs Canon 70D

The size of the sensor inside a digital camera is one of the key determinants 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 30D and Canon 70D sensor measures
Sensor size

While the two cameras under review share the same sensor size, the 70D offers a higher resolution of 20 megapixel, compared with 8.2 MP of the 30D. This megapixel advantage translates into a 56 percent gain in linear resolution. On the other hand, these sensor specs imply that the 70D has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.11μm versus 6.42μm for the 30D). However, it should be noted that the 70D is much more recent (by 7 years and 4 months) than the 30D, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

30D versus 70D MP
Sensor resolution

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). Of the two cameras under consideration, the 70D has a markedly higher DXO score than the 30D (overall score 9 points higher), which will translate into better image quality. The advantage is based on 1 bits higher color depth, 0.8 EV in additional dynamic range, and 0.3 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 30D (⇒ rgt) APS-C 8.2 3504 2336 no 21.5 10.8 736 59
Canon 70D (⇒ lft) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon 80D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.2 1135 79
Canon G3 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.4 12.3 521 63
Canon 7D II (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/60p 22.4 11.8 1082 70
Canon 60D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.5 813 66
Canon 7D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.0 11.7 854 66
Canon 50D (⇒ lft | rgt) APS-C 15.1 4752 3168 no 21.8 11.4 696 63
Canon 40D (⇒ lft | rgt) APS-C 10.1 3888 2592 no 22.1 11.3 703 64
Canon XTi (⇒ lft | rgt) APS-C 10.1 3888 2592 no 22.1 11.0 664 62
Canon XT (⇒ lft | rgt) APS-C 8.0 3456 2304 no 21.8 10.8 637 60
Canon 20D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.9 11.0 721 62
Canon 10D (⇒ lft | rgt) APS-C 6.3 3072 2048 no 21.1 10.9 571 57
Nikon D7100 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.2 13.7 1256 83
Nikon D80 (⇒ lft | rgt) APS-C 10.0 3872 2592 no 22.1 11.2 524 61
Nikon D200 (⇒ lft | rgt) APS-C 10.0 3872 2592 no 22.3 11.5 583 64

Many modern cameras are not only capable of taking still images, but can also record movies. The 70D indeed provides for movie recording, while the 30D does not. The highest resolution format that the 70D can use is 1080/30p.

Feature comparison: Canon 30D vs Canon 70D

Beyond body and sensor, cameras can and do differ across a range of features. The 30D and the 70D 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 30D, the Canon 70D, and comparable cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon 30D (⇒ rgt) optical YES 2.5 230 fixed no 8000 5.0 13 no
Canon 70D (⇒ lft) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 80D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon G3 X (⇒ lft | rgt) no no 3.2 1620 tilting YES 2000 5.9 6.8 YES
Canon 7D II (⇒ lft | rgt) optical YES 3.0 1040 fixed no 8000 10.0 11 no
Canon 60D (⇒ lft | rgt) optical YES 3.0 1040 swivel no 8000 5.3 13 no
Canon 7D (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 8.0 12 no
Canon 50D (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 6.3 13 no
Canon 40D (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 6.5 12 no
Canon XTi (⇒ lft | rgt) optical no 2.5 230 fixed no 4000 3.0 13 no
Canon XT (⇒ lft | rgt) optical no 1.8 115 fixed no 4000 3.0 13 no
Canon 20D (⇒ lft | rgt) optical YES 1.8 118 fixed no 8000 5.0 13 no
Canon 10D (⇒ lft | rgt) optical YES 1.8 118 fixed no 4000 3.0 13 no
Nikon D7100 (⇒ lft | rgt) optical YES 3.2 1229 fixed no 8000 6.0 12 no
Nikon D80 (⇒ lft | rgt) optical no 2.5 230 fixed no 4000 3.0 13 no
Nikon D200 (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 12 no

Both the 30D and the 70D have been discontinued, but can regularly be found used on eBay. The 30D was replaced by the Canon 40D, while the 70D was followed by the Canon 80D.

Review summary: Canon 30D vs Canon 70D

So how do things add up? Which of the two cameras – the Canon 30D or the Canon 70D – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon EOS 30D:

  • More heavily discounted: Has been available for much longer (launched in February 2006).

Reasons to prefer the Canon EOS 70D:

  • More detail: Has more megapixels (20 vs 8.2MP), which boosts linear resolution by 56%.
  • Better image quality: Scores markedly higher (9 points) in the DXO overall evaluation.
  • More dynamic range: Captures a broader range of light and dark details (0.8 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.3 stops ISO advantage).
  • 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 (1040k vs 230k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (7 vs 5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (920 versus 750) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More affordable: Was released into a lower priced segment (14 percent cheaper at launch).
  • More modern: Reflects 7 years and 4 months of technical progress since the 30D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the 70D is the clear winner of the contest (14 : 1 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.

30D 01:14 70D

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 30D or the 70D. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is where reviews by experts come in. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
.com
dp
review
.com
ephoto
zine
.com
imaging
resource
.com
photography
blog
.com
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 30D (⇒ rgt) 87/100 HiRec HiRec reviewed reviewed - 2006 1,399discont. check
Canon 70D (⇒ lft) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon 80D (⇒ lft | rgt) HiRec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,199 latest check
Canon G3 X (⇒ lft | rgt) Rec - 4.5/5 3.5/5 4/5 2015 999 latest check
Canon 7D II (⇒ lft | rgt) Rec 84/100 Silver 4/5 5/5 4.5/5 2014 1,799 latest check
Canon 60D (⇒ lft | rgt) 87/100 Rec 79/100 Silver 4/5 5/5 4.5/5 2010 1,399discont. check
Canon 7D (⇒ lft | rgt) 93/100 HiRec 84/100 4.5/5 5/5 4.5/5 2009 1,699discont. check
Canon 50D (⇒ lft | rgt) 90/100 HiRec HiRec 4.5/5 5/5 4.5/5 2008 1,299discont. check
Canon 40D (⇒ lft | rgt) 90/100 HiRec HiRec 4.5/5 reviewed 4.5/5 2007 1,299discont. check
Canon XTi (⇒ lft | rgt) 85/100 HiRec HiRec reviewed 4.5/5 4/5 2006 799discont. check
Canon XT (⇒ lft | rgt) 80/100 HiRec reviewed reviewed - 2005 899discont. check
Canon 20D (⇒ lft | rgt) - HiRec - reviewed - 2004 1,499discont. check
Canon 10D (⇒ lft | rgt) - HiRec - reviewed - 2003 1,999discont. check
Nikon D7100 (⇒ lft | rgt) HiRec 85/100 Gold 4.5/5 5/5 4.5/5 2013 1,199discont. check
Nikon D80 (⇒ lft | rgt) 86/100 Rec HiRec reviewed 4.5/5 4.5/5 2006 999discont. check
Nikon D200 (⇒ lft | rgt) 91/100 HiRec HiRec reviewed 5/5 - 2005 1,699discont. check

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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, please contact me, and I will try to locate and add the respective data to the application.

vs

    You are here  »   »