Canon 300D vs 850D
The Canon EOS 300D (called Canon Rebel in some regions) and the Canon EOS 850D (labelled Canon T8i in some countries) are two digital cameras that were announced, respectively, in August 2003 and February 2020. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 300D has a resolution of 6.3 megapixels, whereas the 850D provides 24 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 300D and the Canon EOS 850D? 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.
An illustration of the physical size and weight of the Canon 300D and the Canon 850D is provided 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 size dimensions 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 Canon 850D is somewhat smaller (4 percent) than the Canon 300D. Moreover, the 850D is markedly lighter (21 percent) than the 300D. In this context, it is worth noting that neither the 300D nor the 850D 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Canon EF Lens Catalog.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon 300D||142 mm||99 mm||72 mm||649 g||400||n||Aug 2003||899|
|2.||Canon 850D||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749|
|3.||Canon 250D||122 mm||93 mm||70 mm||449 g||1070||n||Apr 2019||599|
|4.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|5.||Canon 800D||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|6.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|7.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|8.||Canon G1 X Mark II||116 mm||74 mm||66 mm||553 g||240||n||Feb 2014||799|
|9.||Canon 700D||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|10.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|11.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|12.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|13.||Canon 350D||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|14.||Canon 20D||144 mm||106 mm||72 mm||770 g||700||n||Aug 2004||1,499|
|15.||Canon 10D||150 mm||107 mm||75 mm||850 g||500||n||Feb 2003||1,999|
|16.||Nikon D70||140 mm||111 mm||78 mm||679 g||400||n||Jan 2004||999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 850D was launched at a somewhat lower price (by 17 percent) than the 300D, 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.
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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 850D is 3 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the 850D uses a more advanced image processing engine (DIGIC 8) than the 300D (DIGIC), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a slightly smaller sensor, the 850D offers a higher resolution of 24 megapixels, compared with 6.3 MP of the 300D. 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 3.72μm versus 7.38μm for the 300D). However, it should be noted that the 850D is much more recent (by 16 years and 5 months) than the 300D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.
The resolution advantage of the Canon 850D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 850D for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon 300D are 15.4 x 10.2 inches or 39 x 26 cm for good quality, 12.3 x 8.2 inches or 31.2 x 20.8 cm for very good quality, and 10.2 x 6.8 inches or 26 x 17.3 cm for excellent quality prints.
The 850D has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 300D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon EOS 850D are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 100-51200.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|8.||Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|11.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
Many modern cameras cannot only take still pictures, but also record videos. The 850D indeed provides for movie recording, while the 300D does not. The highest resolution format that the 850D can use is 4K/24p.
Apart from body and sensor, cameras can and do differ across a range of features. The 300D and the 850D 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 viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the 300D has a higher magnification than the one of the 850D (0.55x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 300D and Canon 850D along with similar information for a selection of comparators.
|8.||Canon G1 X Mark II||optional||n||3.0||1040||tilting||Y||1/4000s||5.2||Y||Y|
|11.||Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The 850D has a touchscreen, while the 300D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The 850D has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 300D does not have a selfie-screen.
The Canon 850D 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 300D writes its imaging data to Compact Flash cards, while the 850D uses SDXC 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 300D and Canon EOS 850D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|8.||Canon G1 X Mark II||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|11.||Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
It is notable that the 850D offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 300D does not provide wifi capability.
The 850D is a recent model that features in the current product line-up of Canon. In contrast, the 300D has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 300D was succeeded by the Canon 350D. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what conclusions can be drawn? Is there a clear favorite between the Canon 300D and the Canon 850D? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Canon EOS 300D:
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.55x vs 0.51x).
- More heavily discounted: Has been available for much longer (launched in August 2003).
Arguments in favor of the Canon EOS 850D:
- More detail: Has more megapixels (24 vs 6.3MP), which boosts linear resolution by 95%.
- Better jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC).
- Broader imaging potential: Can capture not only stills but also 4K/24p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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 (1040k vs 118k dots).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (7.5 vs 2.5 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Less heavy: Has a lower weight (by 134g or 21 percent) and is thus easier to take along.
- Longer lasting: Gets more shots (800 versus 400) out of a single battery charge.
- Faster data transfer: Supports a more advanced USB protocol (2.0 vs 1.1).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was released into a lower priced segment (17 percent cheaper at launch).
- More modern: Reflects 16 years and 5 months of technical progress since the 300D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 850D is the clear winner of the contest (18 : 2 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.
How about other alternatives? Do the specifications of the Canon 300D and the Canon 850D place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 300D or the 850D. 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 provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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 300D||..||..||+ +||..||..||Aug 2003||899|
|2.||Canon 850D||4/5||+||80/100||4/5||3.5/5||Feb 2020||749|
|3.||Canon 250D||..||o||79/100||4/5||4/5||Apr 2019||599|
|4.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|5.||Canon 800D||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|6.||Canon 750D||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|7.||Canon 760D||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|8.||Canon G1 X Mark II||3/5||+||77/100||4/5||4.5/5||Feb 2014||799|
|9.||Canon 700D||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|10.||Canon 650D||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|11.||Canon G1 X||5/5||+||76/100||4/5||4.5/5||Jan 2012||799|
|12.||Canon 400D||..||+ +||+ +||o||4/5||Aug 2006||799|
|13.||Canon 350D||..||80/100||+ +||o||..||Feb 2005||899|
|14.||Canon 20D||..||..||+ +||..||..||Aug 2004||1,499|
|15.||Canon 10D||..||..||+ +||..||..||Feb 2003||1,999|
|16.||Nikon D70||..||..||+ +||..||..||Jan 2004||999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 300D vs Canon 850D
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 300D||Canon 850D|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||August 2003||February 2020|
|Launch Price||USD 899||USD 749|
|Sensor Specs||Canon 300D||Canon 850D|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.7 x 15.1 mm||22.3 x 14.9 mm|
|Sensor Area||342.77 mm2||332.27 mm2|
|Sensor Diagonal||27.3 mm||26.8 mm|
|Sensor Resolution||6.3 Megapixels||24 Megapixels|
|Image Resolution||3072 x 2048 pixels||6000 x 4000 pixels|
|Pixel Pitch||7.38 μm||3.72 μm|
|Pixel Density||1.84 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||4K/24p Video|
|ISO Setting||100 - 1,600 ISO||100 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 51,200 ISO|
|Image Processor||DIGIC||DIGIC 8|
|DXO Sensor Quality (score)||55||..|
|DXO Color Depth (bits)||21.0||..|
|DXO Dynamic Range (EV)||10.8||..|
|DXO Low Light (ISO)||544||..|
|Screen Specs||Canon 300D||Canon 850D|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||95%||95%|
|LCD Framing||Live View|
|Rear LCD Size||1.8inch||3.0inch|
|LCD Resolution||118k dots||1040k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 300D||Canon 850D|
|Focus System||Phase-detect AF||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/4000s|
|Continuous Shooting||2.5 shutter flaps/s||7.5 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||100 000 actuations|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|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 300D||Canon 850D|
|USB Connector||USB 1.1||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon 300D||Canon 850D|
|Battery Life (CIPA)||400 shots per charge||800 shots per charge|
142 x 99 x 72 mm
(5.6 x 3.9 x 2.8 in)
131 x 103 x 76 mm
(5.2 x 4.1 x 3.0 in)
|Camera Weight||649 g (22.9 oz)||515 g (18.2 oz)|
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