Canon 1D Mark III vs 350D

The Canon EOS-1D Mark III and the Canon EOS 350D (labelled Canon XT in some countries) are two digital cameras that were officially introduced, respectively, in February 2007 and February 2005. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark III) and an APS-C (350D) sensor. The 1D Mark III has a resolution of 10.1 megapixels, whereas the 350D provides 8 MP.

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

Headline Specifications

Canon 1D Mark III		Canon 350D
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
10.1 MP – APS-H sensor		8 MP – APS-C sensor
no Video		no Video
ISO 100-3,200 (50 - 6,400)		ISO 100-1,600
Optical viewfinder		Optical viewfinder
3.0" LCD – 230k dots		1.8" LCD – 115k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
10 shutter flaps per second		3 shutter flaps per second
Weathersealed body		not weather sealed
2200 shots per battery charge		400 shots per battery charge
156 x 157 x 80 mm, 1155 g		127 x 94 x 64 mm, 540 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS-1D Mark III and the Canon EOS 350D? 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

The physical size and weight of the Canon 1D Mark III and the Canon 350D are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The 350D can be obtained in two different colors (black, silver), while the 1D Mark III is only available in black.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 350D is considerably smaller (51 percent) than the Canon 1D Mark III. Moreover, the 350D is substantially lighter (53 percent) than the 1D Mark III. It is worth mentioning in this context that the 1D Mark III is splash and dust resistant, while the 350D 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 1D Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (350D). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the 1D Mark III gets 2200 shots out of its Canon LP-E4 battery, while the 350D can take 400 images on a single charge of its Canon NB-2LH power pack. As can be seen in the images above, the 1D 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 350D, Canon provides the BG-E3 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. 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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Canon 1D Mark III	156 mm	157 mm	80 mm	1155 g	2200	Y	Feb 2007	4,499	ebay.com
2.		Canon 350D	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	899	ebay.com
3.		Canon 1D Mark II	156 mm	158 mm	80 mm	1535 g	1200	Y	Jan 2004	4,499	ebay.com
4.		Canon 1D Mark II N	156 mm	158 mm	80 mm	1565 g	1200	Y	Aug 2005	3,999	ebay.com
5.		Canon 1D Mark IV	156 mm	157 mm	80 mm	1230 g	1500	Y	Oct 2009	4,999	ebay.com
6.		Canon 1Ds	156 mm	158 mm	80 mm	1265 g	600	Y	Sep 2002	8,999	ebay.com
7.		Canon 1Ds Mark III	150 mm	160 mm	80 mm	1385 g	1800	Y	Aug 2007	7,999	ebay.com
8.		Canon 5D Mark II	152 mm	114 mm	75 mm	850 g	850	Y	Sep 2008	3,499	ebay.com
9.		Canon 5D Mark III	152 mm	116 mm	76 mm	950 g	950	Y	Mar 2012	3,499	ebay.com
10.		Canon 5DS R	152 mm	116 mm	76 mm	930 g	700	Y	Feb 2015	3,699	ebay.com
11.		Canon 20D	144 mm	106 mm	72 mm	770 g	700	n	Aug 2004	1,499	ebay.com
12.		Canon 30D	144 mm	106 mm	74 mm	785 g	750	n	Feb 2006	1,399	ebay.com
13.		Canon 300D	142 mm	99 mm	72 mm	649 g	400	n	Aug 2003	899	ebay.com
14.		Canon 400D	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
15.		Canon 750D	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
16.		Nikon D2Xs	158 mm	150 mm	86 mm	1252 g	3800	Y	Jun 2006	4,699	ebay.com
17.		Nikon D3	160 mm	157 mm	88 mm	1300 g	4300	Y	Aug 2007	4,999	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

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 350D was launched at a markedly lower price (by 80 percent) than the 1D Mark III, 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.

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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.

Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Canon 350D an APS-C sensor. The sensor area in the 350D is 37 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 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 1D Mark III uses a more advanced image processing engine (DIGIC III) than the 350D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

With 10.1MP, the 1D Mark III offers a higher resolution than the 350D (8MP), but the 1D Mark III nevertheless has larger individual pixels (pixel pitch of 7.21μm versus 6.41μm for the 350D) due to its larger sensor. Moreover, the 1D Mark III is a much more recent model (by 2 years) than the 350D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

The resolution advantage of the Canon 1D Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 1D Mark III for good quality output (200 dots per inch) amounts to 19.4 x 13 inches or 49.4 x 32.9 cm, for very good quality (250 dpi) 15.6 x 10.4 inches or 39.5 x 26.3 cm, and for excellent quality (300 dpi) 13 x 8.6 inches or 32.9 x 21.9 cm. The corresponding values for the Canon 350D are 17.3 x 11.5 inches or 43.9 x 29.3 cm for good quality, 13.8 x 9.2 inches or 35.1 x 23.4 cm for very good quality, and 11.5 x 7.7 inches or 29.3 x 19.5 cm for excellent quality prints.

The Canon EOS-1D Mark III has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 50-6400. The corresponding ISO settings for the Canon EOS 350D 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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 review, the 1D Mark III provides substantially higher image quality than the 350D, with an overall score that is 11 points higher. This advantage is based on 0.9 bits higher color depth, 0.9 EV in additional dynamic range, and 0.8 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
1.		Canon 1D Mark III	APS-H	10.1	3888	2592	none	22.7	11.7	1078	71
2.		Canon 350D	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
3.		Canon 1D Mark II	APS-H	8.2	3504	2336	none	22.3	11.1	1003	66
4.		Canon 1D Mark II N	APS-H	8.2	3504	2336	none	22.3	11.2	975	66
5.		Canon 1D Mark IV	APS-H	16.0	4896	3264	1080/30p	22.8	12.0	1320	74
6.		Canon 1Ds	Full Frame	11.0	4064	2704	none	21.8	11.0	954	63
7.		Canon 1Ds Mark III	Full Frame	21.0	5616	3744	none	24.0	12.0	1663	80
8.		Canon 5D Mark II	Full Frame	21.0	5616	3744	1080/30p	23.7	11.9	1815	79
9.		Canon 5D Mark III	Full Frame	22.1	5760	3840	1080/30p	24.0	11.7	2293	81
10.		Canon 5DS R	Full Frame	50.3	8688	5792	1080/30p	24.6	12.4	2308	86
11.		Canon 20D	APS-C	8.2	3504	2336	none	21.9	11.0	721	62
12.		Canon 30D	APS-C	8.2	3504	2336	none	21.5	10.8	736	59
13.		Canon 300D	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
14.		Canon 400D	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
15.		Canon 750D	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
16.		Nikon D2Xs	APS-C	12.2	4288	2848	none	22.2	10.9	489	59
17.		Nikon D3	Full Frame	12.1	4256	2832	none	23.5	12.2	2290	81

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 1D Mark III and the 350D 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 1D Mark III offers a wider field of view (100%) than the one in the 350D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1D Mark III has a higher magnification (0.58x vs 0.49x), 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 Mark III, the Canon 350D, and comparable cameras.

Core Features

		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 Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	10.0/s	n	n
2.		Canon 350D	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
3.		Canon 1D Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	8.3/s	n	n
4.		Canon 1D Mark II N	optical	Y	2.5 / 230	fixed	n	1/8000s	8.5/s	n	n
5.		Canon 1D Mark IV	optical	Y	3.0 / 920	fixed	n	1/8000s	10.0/s	n	n
6.		Canon 1Ds	optical	Y	2.0 / 120	fixed	n	1/8000s	3.0/s	n	n
7.		Canon 1Ds Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	5.0/s	n	n
8.		Canon 5D Mark II	optical	Y	3.0 / 920	fixed	n	1/8000s	3.9/s	n	n
9.		Canon 5D Mark III	optical	Y	3.2 / 1040	fixed	n	1/8000s	6.0/s	n	n
10.		Canon 5DS R	optical	Y	3.2 / 1040	fixed	n	1/8000s	5.0/s	n	n
11.		Canon 20D	optical	Y	1.8 / 118	fixed	n	1/8000s	5.0/s	Y	n
12.		Canon 30D	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	Y	n
13.		Canon 300D	optical	n	1.8 / 118	fixed	n	1/4000s	2.5/s	Y	n
14.		Canon 400D	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
15.		Canon 750D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
16.		Nikon D2Xs	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	n	n
17.		Nikon D3	optical	Y	3.0 / 922	fixed	n	1/8000s	11.0/s	n	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the 1D Mark III, but is missing on the 350D 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 1D Mark III writes its imaging data to Compact Flash or SDHC cards, while the 350D uses Compact Flash cards. The 1D Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the 350D only has one slot.

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 Mark III and Canon EOS 350D 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 Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Canon 1D Mark III	Y	- / -	-	-	-	2.0	-	-	-
2.		Canon 350D	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon 1D Mark II	Y	- / -	-	-	-	1.1	-	-	-
4.		Canon 1D Mark II N	Y	- / -	-	-	-	1.1	-	-	-
5.		Canon 1D Mark IV	Y	stereo / -	Y	-	mini	2.0	-	-	-
6.		Canon 1Ds	Y	- / -	-	-	-	FW	-	-	-
7.		Canon 1Ds Mark III	Y	mono / -	-	-	-	2.0	-	-	-
8.		Canon 5D Mark II	Y	mono / mono	Y	-	mini	2.0	-	-	-
9.		Canon 5D Mark III	Y	mono / mono	Y	Y	mini	2.0	-	-	-
10.		Canon 5DS R	Y	mono / mono	Y	-	mini	3.0	-	-	-
11.		Canon 20D	Y	- / -	-	-	-	1.1	-	-	-
12.		Canon 30D	Y	- / -	-	-	-	2.0	-	-	-
13.		Canon 300D	Y	- / -	-	-	-	1.1	-	-	-
14.		Canon 400D	Y	- / -	-	-	-	2.0	-	-	-
15.		Canon 750D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
16.		Nikon D2Xs	Y	- / -	-	-	-	2.0	-	-	-
17.		Nikon D3	Y	- / -	-	-	mini	2.0	-	-	-

Studio photographers will appreciate that the Canon 1D Mark III (unlike the 350D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the 1D Mark III and the 350D have been discontinued, but can regularly be found used on ebay. The 350D was replaced by the Canon 400D, while the 1D Mark III was followed by the Canon 1D Mark IV. Further information on the features and operation of the 1D Mark III and 350D can be found, respectively, in the Canon 1D Mark III Manual (free pdf) or the online Canon 350D Manual.

Review summary

So how do things add up? Is the Canon 1D Mark III better than the Canon 350D or vice versa? Below is a summary of the relative strengths of each of the two contestants.

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

• More detail: Offers more megapixels (10.1 vs 8MP) with a 12% higher linear resolution.
• Better image quality: Scores substantially higher (11 points) in the DXO overall assessment.
• More dynamic range: Captures a larger spectrum of light and dark details (0.9 EV of extra DR).
• Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
• Better jpgs: Has a more modern image processing engine (DIGIC III vs DIGIC II).
• 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 (0.58x vs 0.49x).
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• 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 (230k vs 115k dots).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Can take more shots (2200 versus 400) on a single battery charge.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• 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 2 years of technical progress since the 350D launch.

Reasons to prefer the Canon EOS 350D:

• More compact: Is smaller (127x94mm vs 156x157mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 615g or 53 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 (80 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in February 2005).

If the count of relative strengths (bullet points above) is taken as a measure, the 1D Mark III is the clear winner of the match-up (18 : 5 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. 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 1D Mark III and the Canon 350D 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 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 1D Mark III or the 350D. 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

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], 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price (USD)	Street Price
1.		Canon 1D Mark III	..	..	..	..	..	..	Feb 2007	4,499	ebay.com
2.		Canon 350D	..	80/100	..	+ +	o	..	Feb 2005	899	ebay.com
3.		Canon 1D Mark II	..	..	..	+ +	..	..	Jan 2004	4,499	ebay.com
4.		Canon 1D Mark II N	..	..	..	..	..	..	Aug 2005	3,999	ebay.com
5.		Canon 1D Mark IV	5/5	..	..	89/100	..	..	Oct 2009	4,999	ebay.com
6.		Canon 1Ds	..	..	..	+ +	..	..	Sep 2002	8,999	ebay.com
7.		Canon 1Ds Mark III	..	..	..	+ +	4.5/5	..	Aug 2007	7,999	ebay.com
8.		Canon 5D Mark II	4/5	91/100	..	79/100	4/5	..	Sep 2008	3,499	ebay.com
9.		Canon 5D Mark III	..	+ +	..	82/100	4.5/5	4.5/5	Mar 2012	3,499	ebay.com
10.		Canon 5DS R	5/5	+	..	83/100	5/5	4.5/5	Feb 2015	3,699	ebay.com
11.		Canon 20D	..	..	..	+ +	..	..	Aug 2004	1,499	ebay.com
12.		Canon 30D	..	+ +	..	+ +	o	..	Feb 2006	1,399	ebay.com
13.		Canon 300D	..	..	..	+ +	..	..	Aug 2003	899	ebay.com
14.		Canon 400D	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
15.		Canon 750D	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
16.		Nikon D2Xs	..	..	..	..	..	..	Jun 2006	4,699	ebay.com
17.		Nikon D3	..	..	..	+ +	5/5	4.5/5	Aug 2007	4,999	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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 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.

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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.

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