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Canon 1D X Mark III vs 300D

The Canon EOS-1D X Mark III and the Canon EOS 300D (labelled Canon Rebel in some countries) are two digital cameras that were revealed to the public, respectively, in January 2020 and August 2003. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1DX Mark III) and an APS-C (300D) sensor. The 1DX Mark III has a resolution of 20 megapixels, whereas the 300D provides 6.3 MP.

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

Headline Specifications
Canon 1D X Mark III
versus
Canon 300D
Canon 1D X Mark III   Canon 300D
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
20 MP – Full Frame sensor 6.3 MP – APS-C sensor
4K/60p Video no Video
ISO 100-102,400 (50 - 819,200) ISO 100-1,600
Optical viewfinder Optical viewfinder
3.2" LCD – 2100k dots 1.8" LCD – 118k dots
Fixed touchscreen Fixed screen (not touch-sensitive)
20 shutter flaps per second 2.5 shutter flaps per second
Weathersealed bodynot weather sealed
2850 shots per battery charge400 shots per battery charge
158 x 168 x 83 mm, 1440 g 142 x 99 x 72 mm, 649 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D X Mark III and the Canon EOS 300D? 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.

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Body comparison

The physical size and weight of the Canon 1D X Mark III and the Canon 300D 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 dimensions are rounded to the nearest millimeter.

Size Canon 1D X Mark III vs Canon 300D
Compare 1DX Mark III versus 300D top
Comparison 1DX Mark III or 300D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 300D is considerably smaller (47 percent) than the Canon 1D X Mark III. Moreover, the 300D is substantially lighter (55 percent) than the 1DX Mark III. It is worth mentioning in this context that the 1DX Mark III is splash and dust resistant, while the 300D 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 (as in the 1DX Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (300D). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 1DX Mark III gets 2850 shots out of its Canon LP-E19 battery, while the 300D can take 400 images on a single charge of its Canon BP-511 power pack. As can be seen in the images above, the 1DX Mark III has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the 300D, Canon provides the BG-E1 vertical grip as an optional accessory (see here on ebay).

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, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 amazon.com
2.
 
Canon 300D 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899ebay.com
3.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 5,999 amazon.com
4.
 
Canon 1D X Mark II 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999ebay.com
5.
 
Canon 1D C 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 14,999ebay.com
6.
 
Canon 5D Mark III 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499ebay.com
7.
 
Canon 6D 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 2,099ebay.com
8.
 
Canon 650D 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849ebay.com
9.
 
Canon 1D X 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799ebay.com
10.
 
Canon 5D Mark II 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499ebay.com
11.
 
Canon 1Ds Mark III 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 7,999ebay.com
12.
 
Canon 400D 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799ebay.com
13.
 
Canon 350D 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 899ebay.com
14.
 
Canon 1Ds Mark II 156 mm 158 mm 80 mm 1215 g 1200 Y Sep 2004 7,999ebay.com
15.
 
Canon 20D 144 mm 106 mm 72 mm 770 g 700 n Aug 2004 1,499ebay.com
16.
 
Canon 10D 150 mm 107 mm 75 mm 850 g 500 n Feb 2003 1,999ebay.com
17.
 
Nikon D6 160 mm 163 mm 92 mm 1270 g 3580 Y Feb 2020 6,499 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 300D was launched at a markedly lower price (by 86 percent) than the 1DX Mark 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

The size of the imaging sensor is a crucial determinant 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon 1D X Mark III features a full frame sensor and the Canon 300D an APS-C sensor. The sensor area in the 300D is 60 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.

In terms of chip-set technology, the 1DX Mark III uses a more advanced image processing engine (DIGIC X) than the 300D (DIGIC), with benefits for noise reduction, color accuracy, and processing speed.

Canon 1D X Mark III and Canon 300D sensor measures

With 20MP, the 1DX Mark III offers a higher resolution than the 300D (6.3MP), but the 1DX Mark III has smaller individual pixels (pixel pitch of 6.57μm versus 7.38μm for the 300D). However, the 1DX Mark III is a much more recent model (by 16 years and 4 months) than the 300D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 1D X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1DX Mark III for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 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 1DX Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS-1D X Mark III has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-819200. The corresponding ISO settings for the Canon EOS 300D are ISO 100 to ISO 1600 (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.

1DX Mark III versus 300D MP

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 review, the 1DX Mark III provides substantially higher image quality than the 300D, with an overall score that is 36 points higher. This advantage is based on 3.2 bits higher color depth, 3.7 EV in additional dynamic range, and 2.6 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.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
2.
 
Canon 300D APS-C 6.3 3072 2048none21.010.854455
3.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.014.7408696
4.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
5.
 
Canon 1D C Full Frame 17.9 5184 34564K/24p24.313.0215585
6.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
7.
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082
8.
 
Canon 650D APS-C 17.9 5184 34561080/30p21.711.272262
9.
 
Canon 1D X Full Frame 17.9 5184 34561080/30p23.811.8278682
10.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
11.
 
Canon 1Ds Mark III Full Frame 21.0 5616 3744none24.012.0166380
12.
 
Canon 400D APS-C 10.1 3888 2592none22.111.066462
13.
 
Canon 350D APS-C 8.0 3456 2304none21.810.863760
14.
 
Canon 1Ds Mark II Full Frame 16.6 4992 3328none23.311.3148074
15.
 
Canon 20D APS-C 8.2 3504 2336none21.911.072162
16.
 
Canon 10D APS-C 6.3 3072 2048none21.110.957157
17.
 
Nikon D6 Full Frame 20.7 5568 37124K/30p25.314.3288695
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 1DX Mark III indeed provides movie recording capabilities, while the 300D does not. The highest resolution format that the 1DX Mark III can use is 4K/60p.

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Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The 1DX Mark III and the 300D 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 viewfinder in the 1DX Mark III offers a wider field of view (100%) than the one in the 300D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1DX Mark III has a higher magnification (0.76x vs 0.55x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 1D X Mark III, the Canon 300D, and comparable cameras.

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Core Features
# image Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0/s n n
2.
 
Canon 300Doptical n1.8 / 118 fixed n 1/4000s 2.5/s Y n
3.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0/s n Y
4.
 
Canon 1D X Mark IIoptical Y3.2 / 1620 fixed Y 1/8000s 16.0/s n n
5.
 
Canon 1D Coptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
6.
 
Canon 5D Mark IIIoptical Y3.2 / 1040 fixed n 1/8000s 6.0/s n n
7.
 
Canon 6Doptical Y3.0 / 1040 fixed n 1/4000s 4.5/s n n
8.
 
Canon 650Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon 1D Xoptical Y3.2 / 1040 fixed n 1/8000s 14.0/s n n
10.
 
Canon 5D Mark IIoptical Y3.0 / 920 fixed n 1/8000s 3.9/s n n
11.
 
Canon 1Ds Mark IIIoptical Y3.0 / 230 fixed n 1/8000s 5.0/s n n
12.
 
Canon 400Doptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Canon 350Doptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
14.
 
Canon 1Ds Mark IIoptical Y2.0 / 230 fixed n 1/8000s 4.0/s n n
15.
 
Canon 20Doptical Y1.8 / 118 fixed n 1/8000s 5.0/s Y n
16.
 
Canon 10Doptical Y1.8 / 118 fixed n 1/4000s 3.0/s Y n
17.
 
Nikon D6optical Y3.2 / 2359 fixed Y 1/8000s 14.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
padding

One feature that is present on the 1DX Mark III, but is missing on the 300D 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 Canon 1D X Mark 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 1DX Mark III writes its imaging data to CFexpress (type B) cards, while the 300D uses Compact Flash cards. The 1DX Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 300D only has one slot.

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Connectivity comparison

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-1D X Mark III and Canon EOS 300D and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
2.
 
Canon 300DY- / ----1.1---
3.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
4.
 
Canon 1D X Mark IIYmono / monoYYmini3.0---
5.
 
Canon 1D CYmono / monoYYmini2.0---
6.
 
Canon 5D Mark IIIYmono / monoYYmini2.0---
7.
 
Canon 6DYmono / monoY-mini2.0Y--
8.
 
Canon 650DYstereo / monoY-mini2.0---
9.
 
Canon 1D XYmono / -Y-mini2.0---
10.
 
Canon 5D Mark IIYmono / monoY-mini2.0---
11.
 
Canon 1Ds Mark IIIYmono / ----2.0---
12.
 
Canon 400DY- / ----2.0---
13.
 
Canon 350DY- / ----2.0---
14.
 
Canon 1Ds Mark IIY- / ----2.0---
15.
 
Canon 20DY- / ----1.1---
16.
 
Canon 10DY- / ----1.1---
17.
 
Nikon D6Ystereo / monoYYmini3.1Y-Y
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It is notable that the 1DX Mark III offers wifi support, while the 300D does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Canon 1D X Mark III (unlike the 300D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the 1DX Mark III has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

The 1DX Mark III 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 features and operation of the 1DX Mark III and 300D can be found, respectively, in the Canon 1D X Mark III Manual (free pdf) or the online Canon 300D Manual.

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Review summary

So how do things add up? Which of the two cameras – the Canon 1D X Mark III or the Canon 300D – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon EOS-1D X Mark III:

  • More detail: Offers more megapixels (20 vs 6.3MP) with a 78% higher linear resolution.
  • Better image quality: Scores substantially higher (36 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (3.2 bits more color depth).
  • More dynamic range: Captures a larger spectrum of light and dark details (3.7 EV of extra DR).
  • Better low-light sensitivity: Requires less light for good images (2.6 stops ISO advantage).
  • Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC).
  • Broader imaging potential: Can record not only still images but also 4K/60p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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 (0.76x vs 0.55x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 118k dots).
  • 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 (20 vs 2.5 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (2850 versus 400) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 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.
  • 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.
  • More modern: Reflects 16 years and 4 months of technical progress since the 300D launch.


Reasons to prefer the Canon EOS 300D:

  • More compact: Is smaller (142x99mm vs 158x168mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 791g or 55 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 (86 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in August 2003).

If the count of individual advantages (bullet points above) is taken as a guide, the 1DX Mark III is the clear winner of the match-up (27 : 5 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.

1DX Mark III 27:05 300D

How about other alternatives? Do the specifications of the Canon 1D X Mark III and the Canon 300D 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 specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 1DX Mark III or the 300D. 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 amazon.com
2.
 
Canon 300D......+ +.... Aug 2003 899ebay.com
3.
 
Canon R35/5o4.5/5..5/54.5/5 Sep 2021 5,999 amazon.com
4.
 
Canon 1D X Mark II....4.5/589/1004.5/54.5/5 Feb 2016 5,999ebay.com
5.
 
Canon 1D C............ Apr 2012 14,999ebay.com
6.
 
Canon 5D Mark III..+ +..82/1004.5/54.5/5 Mar 2012 3,499ebay.com
7.
 
Canon 6D5/5+ +..83/1004.5/54.5/5 Sep 2012 2,099ebay.com
8.
 
Canon 650D4/5+ +..77/1004.5/54.5/5 Jun 2012 849ebay.com
9.
 
Canon 1D X5/5......4.5/54.5/5 Oct 2011 6,799ebay.com
10.
 
Canon 5D Mark II4/591/100..79/1004/5.. Sep 2008 3,499ebay.com
11.
 
Canon 1Ds Mark III......+ +4.5/5.. Aug 2007 7,999ebay.com
12.
 
Canon 400D..+ +..+ +o4/5 Aug 2006 799ebay.com
13.
 
Canon 350D..80/100..+ +o.. Feb 2005 899ebay.com
14.
 
Canon 1Ds Mark II......+ +.... Sep 2004 7,999ebay.com
15.
 
Canon 20D......+ +.... Aug 2004 1,499ebay.com
16.
 
Canon 10D......+ +.... Feb 2003 1,999ebay.com
17.
 
Nikon D6....4/5..4.5/54.5/5 Feb 2020 6,499 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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, please note that some of the review sites have changed their methodology and reporting over time.

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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 make your choice using the following search menu. 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: Canon 1D X Mark III vs Canon 300D

    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 Canon 1D X Mark III Canon 300D
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date January 2020 August 2003
    Launch Price USD 6,499 USD 899
    Sensor Specs Canon 1D X Mark III Canon 300D
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor APS-C Sensor
    Sensor Size 36.0 x 24.0 mm 22.7 x 15.1 mm
    Sensor Area 864 mm2 342.77 mm2
    Sensor Diagonal 43.3 mm 27.3 mm
    Crop Factor 1.0x 1.6x
    Sensor Resolution 20 Megapixels 6.3 Megapixels
    Image Resolution 5472 x 3648 pixels 3072 x 2048 pixels
    Pixel Pitch 6.57 μm 7.38 μm
    Pixel Density 2.31 MP/cm2 1.84 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/60p Video no Video
    ISO Setting 100 - 102,400 ISO 100 - 1,600 ISO
    ISO Boost 50 - 819,200 ISO no Enhancement
    Image Processor DIGIC X DIGIC
    DXO Sensor Quality (score) 91 55
    DXO Color Depth (bits) 24.2 21.0
    DXO Dynamic Range (EV) 14.5 10.8
    DXO Low Light (ISO) 3248 544
    Screen Specs Canon 1D X Mark III Canon 300D
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 100% 95%
    Viewfinder Magnification 0.76x 0.55x
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View
    Rear LCD Size 3.2inch 1.8inch
    LCD Resolution 2100k dots 118k dots
    LCD Attachment Fixed screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon 1D X Mark III Canon 300D
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 20 shutter flaps/s 2.5 shutter flaps/s
    Shutter Life Expectancy500 000 actuations50 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium CFexB cards CF cards
    Single or Dual Card Slots Dual card slots Single card slot
    Connectivity Specs Canon 1D X Mark III Canon 300D
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.1 USB 1.1
    HDMI Port mini HDMI no HDMI
    Microphone Port External MIC port no MIC socket
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in no Wifi
    Bluetooth Support Bluetooth built-in no Bluetooth
    Geotagging GPS built-in no internal GPS
    Body Specs Canon 1D X Mark III Canon 300D
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Canon LP-E19 Canon BP-511
    Battery Life (CIPA)2850 shots per charge400 shots per charge
    Body Dimensions 158 x 168 x 83 mm
    (6.2 x 6.6 x 3.3 in)
    142 x 99 x 72 mm
    (5.6 x 3.9 x 2.8 in)
    Camera Weight 1440 g (50.8 oz) 649 g (22.9 oz)
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