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Sony A7R III vs Canon 450D

The Sony Alpha A7R III and the Canon EOS 450D (labelled Canon XSi in some countries) are two digital cameras that were officially introduced, respectively, in October 2017 and January 2008. The A7R III is a mirrorless interchangeable lens camera, while the 450D is a DSLR. The cameras are based on a full frame (A7R III) and an APS-C (450D) sensor. The Sony has a resolution of 42.2 megapixels, whereas the Canon provides 12.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Sony A7R III   Canon 450D
Sony A7R III Canon 450D
Mirrorless system camera Digital single lens reflex
Sony E mount lenses Canon EF mount lenses
42.2 MP, Full Frame Sensor 12.2 MP, APS-C Sensor
4K/30p Video no Video
ISO 100-32000 (50-102400) ISO 100-1600
Electronic viewfinder (3686k dots) Optical viewfinder
3.0" LCD, 1440k dots 3.0" LCD, 230k dots
Tilting touchscreen Fixed screen (not touch-sensitive)
10 shutter flaps per second 3.5 shutter flaps per second
In-body stabilizationLens stabilization only
Weathersealed bodyNot weather sealed
650 shots per battery charge500 shots per battery charge
127 x 96 x 74 mm, 650 g 129 x 98 x 62 mm, 524 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R III and the Canon EOS 450D? 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: Sony A7R III vs Canon 450D

The side-by-side display below illustrates the physical size and weight of the Sony A7R III and the Canon 450D. 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.

Size Sony A7R III vs Canon 450D
Compare A7R III versus 450D top
Comparison A7R III or 450D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 450D is somewhat larger (4 percent) than the Sony A7R III. However, the 450D is markedly lighter (19 percent) than the A7R III. It is worth mentioning in this context that the A7R III is splash and dust resistant, while the 450D 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 Sony FE Lens Catalog (A7R III) and the Canon EF Lens Catalog (450D). Mirrorless cameras, such as the Sony A7R III, have moreover the advantage that they have a relatively short flange to focal plane distance and can thus use many lenses from other systems via adapters.

Concerning battery life, the A7R III gets 650 shots out of its NP-FZ100 battery, while the 450D can take 500 images on a single charge of its LP-E5 power pack. The power pack in the A7R III can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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.

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
 
Sony A7R III» 5.0 in 3.8 in 2.9 in 22.9 oz 650 Y Oct 2017 3,199 i i Sony A7R III
 
Canon 450D« 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799- i Canon 450D
 
Canon 750D« » 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i Canon 750D
 
Canon G1 X Mark II« » 4.6 in 2.9 in 2.6 in 19.5 oz 240 n Feb 2014 799 i i Canon G1 X Mark II
 
Canon G1 X« » 4.6 in 3.2 in 2.6 in 18.8 oz 250 n Jan 2012 799- i Canon G1 X
 
Canon 500D« » 5.1 in 3.9 in 2.4 in 18.3 oz 400 n Mar 2009 799- i Canon 500D
 
Canon 400D« » 5.0 in 3.3 in 2.6 in 19.6 oz 370 n Aug 2006 799- i Canon 400D
 
Nikon Z7« » 5.3 in 4.0 in 2.6 in 23.8 oz 330 Y Aug 2018 3,399 i i Nikon Z7
 
Pentax K-1« » 5.4 in 4.3 in 3.4 in 35.6 oz 760 Y Feb 2016 1,799- i Pentax K-1
 
Sony A7 III« » 5.0 in 3.8 in 2.9 in 22.9 oz 610 Y Feb 2018 1,999 i i Sony A7 III
 
Sony A9« » 5.0 in 3.8 in 2.5 in 23.7 oz 650 Y Apr 2017 4,499 i i Sony A9
 
Sony A99 II« » 5.6 in 4.1 in 3.0 in 29.9 oz 490 Y Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« » 5.0 in 3.8 in 2.4 in 22.0 oz 290 Y Jun 2015 3,199- i Sony A7R II
 
Sony A7S II« » 5.0 in 3.8 in 2.4 in 22.1 oz 370 Y Sep 2015 2,999 i i Sony A7S II
 
Sony A7 II« » 5.0 in 3.8 in 2.4 in 21.1 oz 350 Y Nov 2014 1,999- i Sony A7 II
 
Sony A7R« » 5.0 in 3.7 in 1.9 in 16.4 oz 340 Y Oct 2013 2,299- i Sony A7R
 
Sony A99« » 5.8 in 4.4 in 3.1 in 28.6 oz 500 Y Sep 2012 2,799- i Sony A99
Note: Measurements and pricing do not include easily detachable parts, such as 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 450D was launched at a markedly lower price (by 75 percent) than the A7R III, 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.

 

Sensor comparison: Sony A7R III vs Canon 450D

The size of the imaging sensor is a crucial determinant 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Sony A7R III features a full frame sensor and the Canon 450D an APS-C sensor. The sensor area in the 450D is 62 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sony A7R III and Canon 450D sensor measures

With 42.2MP, the A7R III offers a higher resolution than the 450D (12.2MP), but the A7R III has smaller individual pixels (pixel pitch of 4.52μm versus 5.19μm for the 450D). However, the A7R III is a much more recent model (by 9 years and 9 months) than the 450D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the A7R III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inch or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inch or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inch or 67.3 x 44.9 cm. The corresponding values for the Canon 450D are 21.4 x 14.2 inch or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inch or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inch or 36.2 x 24.1 cm for excellent quality prints.

The A7R III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the 450D, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Sony Alpha A7R III has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 50-102400. The corresponding ISO settings for the Canon EOS 450D are ISO 100 to ISO 1600 (no boost).

A7R III versus 450D MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 review, the A7R III provides substantially higher image quality than the 450D, with an overall score that is 39 points higher. This advantage is based on 4.1 bits higher color depth, 3.9 EV in additional dynamic range, and 2.3 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
 
Sony A7R III» Full Frame 42.2 7952 53044K/30p26.014.73523100Sony A7R III
 
Canon 450D« APS-C 12.2 4272 2848-21.910.869261Canon 450D
 
Canon 750D« » APS-C 24.0 6000 40001080/60p22.712.091971Canon 750D
 
Canon G1 X Mark II« » 1.5-inch 13.0 4160 31201080/30p21.510.858158Canon G1 X Mark II
 
Canon G1 X« » 1.5-inch 14.2 4352 32641080/24p21.710.864460Canon G1 X
 
Canon 500D« » APS-C 15.1 4752 31681080/20p21.711.566363Canon 500D
 
Canon 400D« » APS-C 10.1 3888 2592-22.111.066462Canon 400D
 
Nikon Z7« » Full Frame 45.4 8256 55044K/30p26.314.6266899Nikon Z7
 
Pentax K-1« » Full Frame 36.2 7360 49121080/60i25.414.6328096Pentax K-1
 
Sony A7 III« » Full Frame 24.0 6000 40004K/30p25.014.7373096Sony A7 III
 
Sony A9« » Full Frame 24.0 6000 40004K/30p24.913.3351792Sony A9
 
Sony A99 II« » Full Frame 42.2 7952 53044K/30p25.413.4231792Sony A99 II
 
Sony A7R II« » Full Frame 42.2 7952 53044K/30p26.013.9343498Sony A7R II
 
Sony A7S II« » Full Frame 12.0 4240 28324K/30p23.613.3299385Sony A7S II
 
Sony A7 II« » Full Frame 24.0 6000 40001080/60p24.913.6244990Sony A7 II
 
Sony A7R« » Full Frame 36.2 7360 49121080/60p25.614.1274695Sony A7R
 
Sony A99« » Full Frame 24.0 6000 40001080/60p25.014.0155589Sony A99

Many modern cameras are not only capable of taking still images, but can also record movies. The A7R III indeed provides movie recording capabilities, while the 450D does not. The highest resolution format that the A7R III can use is 4K/30p.

 

Feature comparison: Sony A7R III vs Canon 450D

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7R III has an electronic viewfinder (3686k dots), while the 450D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the A7R III offers a wider field of view (100%) than the one in the 450D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7R III has a higher magnification (0.78x vs 0.54x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Sony A7R III and Canon 450D in connection with corresponding information for a sample of similar cameras.

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
Camera
Model
 
Sony A7R III»3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y Sony A7R III
 
Canon 450D«optical n 3.0 230 fixed n 1/4000s 3.5 Y n Canon 450D
 
Canon 750D« »optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n Canon 750D
 
Canon G1 X Mark II« »- n 3.0 1040 tilting Y 1/4000s 5.2 Y Y Canon G1 X Mark II
 
Canon G1 X« »optical n 3.0 922 Swivel n 1/4000s 1.9 Y Y Canon G1 X
 
Canon 500D« »optical n 3.0 920 fixed n 1/4000s 3.4 Y n Canon 500D
 
Canon 400D« »optical n 2.5 230 fixed n 1/4000s 3.0 Y n Canon 400D
 
Nikon Z7« »3690 Y 3.2 2100 tilting Y 1/8000s 9.0 n Y Nikon Z7
 
Pentax K-1« »optical Y 3.2 1037 full-flex n 1/8000s 4.4 n Y Pentax K-1
 
Sony A7 III« »2359 n 3.0 922 tilting Y 1/8000s 10.0 n Y Sony A7 III
 
Sony A9« »3686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y Sony A9
 
Sony A99 II« »2400 Y 3.0 1229 full-flex n 1/8000s 12.0 n Y Sony A99 II
 
Sony A7R II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7R II
 
Sony A7S II« »2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y Sony A7S II
 
Sony A7 II« »2400 n 3.0 1230 tilting n 1/8000s 5.0 n Y Sony A7 II
 
Sony A7R« »2400 n 3.0 1230 tilting n 1/8000s 4.0 n n Sony A7R
 
Sony A99« »2359 Y 3.0 1229 full-flex n 1/8000s 6.0 n Y Sony A99

One feature that differentiates the A7R III and the 450D is in-body image stabilization (IBIS). The A7R III reduces the risk of handshake-induced blur with all attached lenses, while the 450D has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7R III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Sony A7R III has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The A7R III writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the 450D uses SDHC cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 450D only has one slot. The A7R III supports UHS-II cards on its first slot and UHS-I on its second one, while the 450D cannot take advantage of Ultra High Speed SD cards.

 

Connectivity comparison: Sony A7R III vs Canon 450D

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 Sony Alpha A7R III and Canon EOS 450D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Sony A7R III»YstereomonoYYmicro3.1YYYSony A7R III
 
Canon 450D«Y----mini2.0---Canon 450D
 
Canon 750D« »YstereomonoY-mini2.0YY-Canon 750D
 
Canon G1 X Mark II« »Ystereomono--mini2.0YY-Canon G1 X Mark II
 
Canon G1 X« »Ystereomono--mini2.0---Canon G1 X
 
Canon 500D« »Ymonomono--mini2.0---Canon 500D
 
Canon 400D« »Y-----2.0---Canon 400D
 
Nikon Z7« »YstereomonoYYmicro3.1Y-YNikon Z7
 
Pentax K-1« »YstereomonoYYmicro2.0Y--Pentax K-1
 
Sony A7 III« »YstereomonoYYmicro3.1YYYSony A7 III
 
Sony A9« »YstereomonoYYmicro2.0YYYSony A9
 
Sony A99 II« »YstereomonoYYmicro2.0YYYSony A99 II
 
Sony A7R II« »YstereomonoYYmicro2.0YY-Sony A7R II
 
Sony A7S II« »YstereomonoYYmicro2.0YY-Sony A7S II
 
Sony A7 II« »YstereomonoYYmicro2.0YY-Sony A7 II
 
Sony A7R« »YstereomonoYYmicro2.0YY-Sony A7R
 
Sony A99« »YstereomonoYYmini2.0---Sony A99

It is notable that the A7R III offers wifi support, while the 450D does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Sony A7R III (unlike the 450D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The A7R III is a recent model that features in the current product line-up of Sony. In contrast, the 450D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 450D was succeeded by the Canon 500D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony and Canon websites.


Review summary: Sony A7R III vs Canon 450D

So what conclusions can be drawn? Which of the two cameras – the Sony A7R III or the Canon 450D – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Sony Alpha A7R III:

  • More detail: Offers more megapixels (42.2 vs 12.2MP) with a 86% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better image quality: Scores substantially higher (39 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (4.1 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (3.9 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.3 stops ISO advantage).
  • Broader imaging potential: Can record not only still images but also 4K/30p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • 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 (0.78x vs 0.54x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 230k dots).
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3.5 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (650 versus 500) on a single battery charge.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • 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.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II and UHS-I) SDXC cards.
  • More modern: Reflects 9 years and 9 months of technical progress since the 450D launch.

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Reasons to prefer the Canon EOS 450D:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Less heavy: Has a lower weight (by 126g or 19 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • More affordable: Was introduced into a lower priced category (75 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in January 2008).

If the count of individual advantages (bullet points above) is taken as a guide, the A7R III is the clear winner of the match-up (31 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

A7R III 31:06 450D

How about other alternatives? Do the specifications of the Sony A7R III and the Canon 450D place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 A7R III and the 450D 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.

Expert reviews: Sony A7R III vs Canon 450D

This is where reviews by experts come in. 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.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Sony A7R III»+ +90/1004.5/55/55/5 Oct 2017 3,199 i i Sony A7R III
 
Canon 450D«+ ++ +4/55/54.5/5 Jan 2008 799- i Canon 450D
 
Canon 750D« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon 750D
 
Canon G1 X Mark II« »+77/1004/54/54.5/5 Feb 2014 799 i i Canon G1 X Mark II
 
Canon G1 X« »+76/1004/54/54.5/5 Jan 2012 799- i Canon G1 X
 
Canon 500D« »+ +74/1004.5/55/54.5/5 Mar 2009 799- i Canon 500D
 
Canon 400D« »+ ++ +o4.5/54/5 Aug 2006 799- i Canon 400D
 
Nikon Z7« »+89/1004.5/54.5/55/5 Aug 2018 3,399 i i Nikon Z7
 
Pentax K-1« »-84/1005/54.5/55/5 Feb 2016 1,799- i Pentax K-1
 
Sony A7 III« »+ +89/1005/55/55/5 Feb 2018 1,999 i i Sony A7 III
 
Sony A9« »+ +89/1005/55/55/5 Apr 2017 4,499 i i Sony A9
 
Sony A99 II« »-85/1004.5/54.5/54.5/5 Sep 2016 3,199 i i Sony A99 II
 
Sony A7R II« »+ +90/1005/54.5/55/5 Jun 2015 3,199- i Sony A7R II
 
Sony A7S II« »+-4.5/55/55/5 Sep 2015 2,999 i i Sony A7S II
 
Sony A7 II« »+82/1004.5/55/55/5 Nov 2014 1,999- i Sony A7 II
 
Sony A7R« »+ +82/1004.5/55/55/5 Oct 2013 2,299- i Sony A7R
 
Sony A99« »-84/1004.5/5o4.5/5 Sep 2012 2,799- i Sony A99
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated with care, 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.

Sony A7R III:
Check Amazon price
Canon 450D:
Check Ebay offers

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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Sony A7R III vs Canon 450D

    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 Sony A7R III Canon 450D
    Camera Type Mirrorless system camera Digital single lens reflex
    Camera Lens Sony E mount lenses Canon EF mount lenses
    Launch Date October 2017 January 2008
    Launch Price USD 3199 USD 799
    Sensor Specs Sony A7R III Canon 450D
    Sensor Technology BSI-CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 35.9 x 24.0 mm 22.2 x 14.8 mm
    Sensor Area 861.6 mm2 328.56 mm2
    Sensor Diagonal 43.2 mm 26.7 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 42.2 Megapixels 12.2 Megapixels
    Image Resolution 7952 x 5304 pixels 4272 x 2848 pixels
    Pixel Pitch 4.52 μm 5.19 μm
    Pixel Density 4.90 MP/cm2 3.70 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video no Video
    ISO Setting 100-32000 ISO 100-1600 ISO
    ISO Boost 50-102400 ISO no Enhancement
    Image Processor BIONZ X DIGIC 3
    DXO Sensor Quality (score) 100 61
    DXO Color Depth (bits) 26.0 21.9
    DXO Dynamic Range (EV) 14.7 10.8
    DXO Low Light (ISO) 3523 692
    Screen Specs Sony A7R III Canon 450D
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.78x 0.54x
    Viewfinder Resolution 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 1440k dots 230k dots
    LCD Attachment Tilting screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sony A7R III Canon 450D
    Autofocus System On-Sensor Phase-detect Phase-detect AF
    Manual Focusing AidFocus PeakingNo Peaking Feature
    Continuous Shooting 10 shutter flaps/s 3.5 shutter flaps/s
    Shutter Life Expectancy500 000 actuations100 000 actuations
    Electronic ShutterYESno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Image StabilizationIn-body stabilizationLens stabilization only
    Fill Flash no On-Board Flash Build-in Flash
    Storage Medium MS or SDXC cards SDHC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support Single UHS-II no
    Connectivity Specs Sony A7R III Canon 450D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in no Bluetooth
    Body Specs Sony A7R III Canon 450D
    Environmental SealingWeathersealed bodyNot weather sealed
    Battery Type NP-FZ100 power pack LP-E5 power pack
    Battery Life (CIPA)650 shots per charge500 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    129 x 98 x 62 mm
    (5.1 x 3.9 x 2.4 in)
    Camera Weight 650 g (22.9 oz) 524 g (18.5 oz)

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