Canon 40D vs Sony A3000
The Canon EOS 40D and the Sony Alpha A3000 are two digital cameras that were announced, respectively, in August 2007 and August 2013. The 40D is a DSLR, while the A3000 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 10.1 megapixels, whereas the Sony provides 19.8 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 40D and the Sony Alpha A3000? 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 physical size and weight of the Canon 40D and the Sony A3000 are illustrated in the side-by-side display below. 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A3000 is notably smaller (26 percent) than the Canon 40D. Moreover, the A3000 is substantially lighter (50 percent) than the 40D. In this context, it is worth noting that neither the 40D nor the A3000 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. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (40D) and the Sony E-Mount Lens Catalog (A3000). Mirrorless cameras, such as the A3000, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.
Concerning battery life, the 40D gets 750 shots out of its BP-511A battery, while the A3000 can take 470 images on a single charge of its NP-FW50 power pack. The power pack in the A3000 can be charged via the USB port, which can be very convenient when travelling.
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, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299||ebay.com|
|2.||Sony A3000||128 mm||91 mm||85 mm||411 g||470||n||Aug 2013||329||ebay.com|
|3.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449||ebay.com|
|4.||Canon 60D||145 mm||106 mm||79 mm||755 g||1100||Y||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||146 mm||108 mm||74 mm||822 g||800||Y||Aug 2008||1,299||ebay.com|
|6.||Canon XS||126 mm||98 mm||65 mm||502 g||500||n||Jun 2008||449||ebay.com|
|7.||Canon XSi||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799||ebay.com|
|8.||Canon 30D||144 mm||106 mm||74 mm||785 g||750||n||Feb 2006||1,399||ebay.com|
|9.||Canon XTi||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799||ebay.com|
|10.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499||ebay.com|
|11.||Canon 10D||150 mm||107 mm||75 mm||850 g||500||n||Feb 2003||1,999||ebay.com|
|12.||Nikon D90||132 mm||103 mm||77 mm||703 g||850||n||Aug 2008||1,299||ebay.com|
|13.||Sony A6400||120 mm||67 mm||50 mm||403 g||410||Y||Jan 2019||899||amazon.com|
|14.||Sony A6000||120 mm||67 mm||45 mm||344 g||360||n||Feb 2014||599||ebay.com|
|15.||Sony RX1R||113 mm||65 mm||70 mm||482 g||270||n||Jun 2013||2,799||ebay.com|
|16.||Sony NEX-6||120 mm||67 mm||43 mm||345 g||360||n||Sep 2012||999||ebay.com|
|17.||Sony NEX-7||120 mm||67 mm||43 mm||400 g||430||n||Aug 2011||1,349||ebay.com|
|Note: 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 A3000 was launched at a markedly lower price (by 75 percent) than the 40D, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 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, but their sensors differ slightly in size. The sensor area in the A3000 is 8 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (40D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 19.8MP, the A3000 offers a higher resolution than the 40D (10.1MP), but the A3000 has smaller individual pixels (pixel pitch of 4.25μm versus 5.73μm for the 40D). Yet, the A3000 is a much more recent model (by 6 years) than the 40D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A3000 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A3000 for good quality output (200 dots per inch) amounts to 27.3 x 18.2 inches or 69.3 x 46.1 cm, for very good quality (250 dpi) 21.8 x 14.5 inches or 55.4 x 36.9 cm, and for excellent quality (300 dpi) 18.2 x 12.1 inches or 46.2 x 30.8 cm. The corresponding values for the Canon 40D 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 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. The corresponding ISO settings for the Sony Alpha A3000 are ISO 100 to ISO 16000 (no boost).
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
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. Of the two cameras under consideration, the A3000 offers substantially better image quality than the 40D (overall score 14 points higher). The advantage is based on 1.6 bits higher color depth, 1.5 EV in additional dynamic range, and 0.6 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.
|15.||Sony RX1R||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91|
|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. The A3000 indeed provides for movie recording, while the 40D does not. The highest resolution format that the A3000 can use is 1080/60i.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A3000 has an electronic viewfinder (202k dots), while the 40D 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 A3000 offers a wider field of view (100%) than the one in the 40D (95%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 40D has a higher magnification (0.59x vs 0.47x), 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 Canon 40D and Sony A3000 in connection with corresponding information for a sample of similar cameras.
|1.||Canon 40D||optical||Y||3.0 / 230||fixed||n||1/8000s||6.5/s||Y||n|
|2.||Sony A3000||202||n||3.0 / 230||fixed||n||1/4000s||2.5/s||Y||n|
|3.||Canon T3||optical||n||2.7 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|4.||Canon 60D||optical||Y||3.0 / 1040||swivel||n||1/8000s||5.3/s||Y||n|
|5.||Canon 50D||optical||Y||3.0 / 920||fixed||n||1/8000s||6.3/s||Y||n|
|6.||Canon XS||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|7.||Canon XSi||optical||n||3.0 / 230||fixed||n||1/4000s||3.5/s||Y||n|
|8.||Canon 30D||optical||Y||2.5 / 230||fixed||n||1/8000s||5.0/s||Y||n|
|9.||Canon XTi||optical||n||2.5 / 230||fixed||n||1/4000s||3.0/s||Y||n|
|10.||Canon 20D||optical||Y||1.8 / 118||fixed||n||1/8000s||5.0/s||Y||n|
|11.||Canon 10D||optical||Y||1.8 / 118||fixed||n||1/4000s||3.0/s||Y||n|
|12.||Nikon D90||optical||Y||3.0 / 920||fixed||n||1/4000s||4.5/s||Y||n|
|13.||Sony A6400||2359||n||3.0 / 922||tilting||Y||1/4000s||11.0/s||Y||n|
|14.||Sony A6000||1440||n||3.0 / 922||tilting||n||1/4000s||11.0/s||Y||n|
|15.||Sony RX1R||optional||n||3.0 / 1229||fixed||n||1/4000s||5.0/s||Y||n|
|16.||Sony NEX-6||2359||n||3.0 / 921||tilting||n||1/4000s||10.0/s||Y||n|
|17.||Sony NEX-7||2359||n||3.0 / 921||tilting||n||1/4000s||10.0/s||Y||n|
|Notes: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.|
One feature that is present on the 40D, but is missing on the A3000 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 40D writes its imaging data to Compact Flash cards, while the A3000 uses SDXC or Memory Stick PRO Duo 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 40D and Sony Alpha A3000 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 40D||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Sony A3000||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|3.||Canon T3||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|4.||Canon 60D||Y||mono / mono||Y||-||mini||2.0||-||-||-|
|5.||Canon 50D||Y||- / -||-||-||mini||2.0||-||-||-|
|6.||Canon XS||Y||- / -||-||-||-||2.0||-||-||-|
|7.||Canon XSi||Y||- / -||-||-||mini||2.0||-||-||-|
|8.||Canon 30D||Y||- / -||-||-||-||2.0||-||-||-|
|9.||Canon XTi||Y||- / -||-||-||-||2.0||-||-||-|
|10.||Canon 20D||Y||- / -||-||-||-||1.1||-||-||-|
|11.||Canon 10D||Y||- / -||-||-||-||1.1||-||-||-|
|12.||Nikon D90||Y||mono / mono||-||-||mini||2.0||-||-||-|
|13.||Sony A6400||Y||stereo / mono||Y||-||micro||2.0||Y||Y||Y|
|14.||Sony A6000||Y||stereo / mono||-||-||micro||2.0||Y||Y||-|
|15.||Sony RX1R||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|16.||Sony NEX-6||Y||stereo / mono||-||-||mini||2.0||Y||-||-|
|17.||Sony NEX-7||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
Studio photographers will appreciate that the Canon 40D (unlike the A3000) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 40D and the A3000 have been discontinued, but can regularly be found used on ebay. The 40D was replaced by the Canon 50D, while the A3000 does not have a direct successor. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Sony websites.
So what is the bottom line? Which of the two cameras – the Canon 40D or the Sony A3000 – 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.
Advantages of the Canon EOS 40D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.47x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (6.5 vs 2.5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (750 versus 470) on a single battery charge.
- 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 August 2007).
Reasons to prefer the Sony Alpha A3000:
- More detail: Has more megapixels (19.8 vs 10.1MP), which boosts linear resolution by 40%.
- Better image quality: Scores substantially higher (14 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.5 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.6 stops ISO advantage).
- Broader imaging potential: Can capture not only stills but also 1080/60i video.
- 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%).
- More compact: Is smaller (128x91mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 411g or 50 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (75 percent cheaper at launch).
- More modern: Reflects 6 years of technical progress since the 40D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the A3000 is the clear winner of the contest (14 : 8 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 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 40D and the Sony A3000 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 40D or the A3000. 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 40D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2007||1,299||ebay.com|
|2.||Sony A3000||3/5||+||..||..||4/5||4/5||Aug 2013||329||ebay.com|
|3.||Canon T3||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449||ebay.com|
|4.||Canon 60D||5/5||+||..||79/100||4/5||4.5/5||Aug 2010||1,399||ebay.com|
|5.||Canon 50D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2008||1,299||ebay.com|
|6.||Canon XS||..||82/100||..||+ +||3.5/5||4.5/5||Jun 2008||449||ebay.com|
|7.||Canon XSi||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799||ebay.com|
|8.||Canon 30D||..||+ +||..||+ +||o||..||Feb 2006||1,399||ebay.com|
|9.||Canon XTi||..||+ +||..||+ +||o||4/5||Aug 2006||799||ebay.com|
|10.||Canon 20D||..||..||..||+ +||..||..||Aug 2004||1,499||ebay.com|
|11.||Canon 10D||..||..||..||+ +||..||..||Feb 2003||1,999||ebay.com|
|12.||Nikon D90||..||+ +||..||+ +||4/5||4.5/5||Aug 2008||1,299||ebay.com|
|13.||Sony A6400||4/5||+||4/5||85/100||4.5/5||4/5||Jan 2019||899||amazon.com|
|14.||Sony A6000||5/5||+||4.5/5||80/100||4.5/5||5/5||Feb 2014||599||ebay.com|
|15.||Sony RX1R||5/5||..||..||..||4/5||4.5/5||Jun 2013||2,799||ebay.com|
|16.||Sony NEX-6||5/5||+ +||..||78/100||4.5/5||4.5/5||Sep 2012||999||ebay.com|
|17.||Sony NEX-7||5/5||+ +||..||81/100||4.5/5||5/5||Aug 2011||1,349||ebay.com|
|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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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.
Specifications: Canon 40D vs Sony A3000
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 40D||Sony A3000|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Sony E mount lenses|
|Launch Date||August 2007||August 2013|
|Launch Price||USD 1,299||USD 329|
|Sensor Specs||Canon 40D||Sony A3000|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.3 x 14.9 mm||23.2 x 15.4 mm|
|Sensor Area||332.27 mm2||357.28 mm2|
|Sensor Diagonal||26.8 mm||27.8 mm|
|Sensor Resolution||10.1 Megapixels||19.8 Megapixels|
|Image Resolution||3888 x 2592 pixels||5456 x 3632 pixels|
|Pixel Pitch||5.73 μm||4.25 μm|
|Pixel Density||3.03 MP/cm2||5.55 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60i Video|
|ISO Setting||100 - 1,600 ISO||100 - 16,000 ISO|
|ISO Boost||100 - 3,200 ISO||no Enhancement|
|Image Processor||DIGIC 3||BIONZ|
|DXO Sensor Quality (score)||64||78|
|DXO Color Depth (bits)||22.1||23.7|
|DXO Dynamic Range (EV)||11.3||12.8|
|DXO Low Light (ISO)||703||1068|
|Screen Specs||Canon 40D||Sony A3000|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||202k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||230k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Shooting Specs||Canon 40D||Sony A3000|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||1/4000s|
|Continuous Shooting||6.5 shutter flaps/s||2.5 shutter flaps/s|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 40D||Sony A3000|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 40D||Sony A3000|
|Battery Life (CIPA)||750 shots per charge||470 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
128 x 91 x 85 mm
(5.0 x 3.6 x 3.3 in)
|Camera Weight||822 g (29.0 oz)||411 g (14.5 oz)|
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