Canon SL1 vs 1D Mark IV

The Canon EOS Rebel SL1 (called Canon 100D in some regions) and the Canon EOS-1D Mark IV are two digital cameras that were announced, respectively, in March 2013 and October 2009. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (SL1) and an APS-H (1D Mark IV) sensor. The SL1 has a resolution of 17.9 megapixels, whereas the 1D Mark IV provides 16 MP.

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

Headline Specifications

Canon SL1		Canon 1D Mark IV
Digital single lens reflex		Digital single lens reflex
Canon EF mount lenses		Canon EF mount lenses
17.9 MP – APS-C sensor		16 MP – APS-H sensor
1080/30p Video		1080/30p Video
ISO 100-12,800 (100 - 25,600)		ISO 100-12,800 (50 - 102,400)
Optical viewfinder		Optical viewfinder
3.0" LCD – 1040k dots		3.0" LCD – 920k dots
Fixed touchscreen		Fixed screen (not touch-sensitive)
4.9 shutter flaps per second		10 shutter flaps per second
not weather sealed		Weathersealed body
380 shots per battery charge		1500 shots per battery charge
117 x 91 x 69 mm, 407 g		156 x 157 x 80 mm, 1230 g

Check SL1 offers at
ebay.com
Check 1D Mark IV offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel SL1 and the Canon EOS-1D Mark IV? 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 SL1 and the Canon 1D Mark IV 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.

The SL1 can be obtained in two different colors (black, white), while the 1D Mark IV 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 1D Mark IV is considerably larger (130 percent) than the Canon SL1. Moreover, the 1D Mark IV is substantially heavier (202 percent) than the SL1. It is noteworthy in this context that the 1D Mark IV is splash and dust-proof, while the SL1 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 IV) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (SL1). You can compare the optics available in the Canon EF Lens Catalog.

Concerning battery life, the SL1 gets 380 shots out of its Canon LP-E12 battery, while the 1D Mark IV can take 1500 images on a single charge of its Canon LP-E4 power pack. As can be seen in the images above, the 1D Mark IV 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 SL1, there are third party battery grips available as optional accessories (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.

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 SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	ebay.com
2.		Canon 1D Mark IV	156 mm	157 mm	80 mm	1230 g	1500	Y	Oct 2009	4,999	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 III	156 mm	157 mm	80 mm	1155 g	2200	Y	Feb 2007	4,499	ebay.com
5.		Canon 1Ds Mark II	156 mm	158 mm	80 mm	1215 g	1200	Y	Sep 2004	7,999	ebay.com
6.		Canon 1D X Mark II	158 mm	168 mm	83 mm	1530 g	1210	Y	Feb 2016	5,999	ebay.com
7.		Canon 5D Mark II	152 mm	114 mm	75 mm	850 g	850	Y	Sep 2008	3,499	ebay.com
8.		Canon G16	109 mm	76 mm	40 mm	356 g	360	n	Aug 2013	549	ebay.com
9.		Canon M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	599	ebay.com
10.		Canon M10	108 mm	67 mm	35 mm	301 g	255	n	Oct 2015	499	ebay.com
11.		Canon SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	549	ebay.com
12.		Canon T3i	133 mm	100 mm	80 mm	570 g	440	n	Feb 2011	599	ebay.com
13.		Canon T4i	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
14.		Canon T5	130 mm	100 mm	78 mm	480 g	500	n	Feb 2014	449	ebay.com
15.		Canon T5i	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	649	ebay.com
16.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
17.		Canon T100	129 mm	102 mm	77 mm	436 g	500	n	Feb 2018	399	amazon.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 obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The SL1 was launched at a markedly lower price (by 89 percent) than the 1D Mark IV, 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.

Sensor comparison

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon SL1 features an APS-C sensor and the Canon 1D Mark IV an APS-H sensor. The sensor area in the 1D Mark IV is 56 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.3. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the SL1 uses a more advanced image processing engine (DIGIC 5) than the 1D Mark IV (DIGIC IV), with benefits for noise reduction, color accuracy, and processing speed.

Despite having a smaller sensor, the Canon SL1 offers a higher resolution of 17.9 megapixels, compared with 16 MP of the Canon 1D Mark IV. 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 4.31μm versus 5.70μm for the 1D Mark IV). However, it should be noted that the SL1 is much more recent (by 3 years and 5 months) than the 1D Mark IV, 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 SL1 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SL1 for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Canon 1D Mark IV are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The SL1 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Rebel SL1 has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Canon EOS-1D Mark IV are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 50-102400.

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.

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"). Of the two cameras under consideration, the 1D Mark IV offers substantially better image quality than the SL1 (overall score 11 points higher). The advantage is based on 1 bits higher color depth, 0.7 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
2.		Canon 1D Mark IV	APS-H	16.0	4896	3264	1080/30p	22.8	12.0	1320	74
3.		Canon 1D Mark II	APS-H	8.2	3504	2336	none	22.3	11.1	1003	66
4.		Canon 1D Mark III	APS-H	10.1	3888	2592	none	22.7	11.7	1078	71
5.		Canon 1Ds Mark II	Full Frame	16.6	4992	3328	none	23.3	11.3	1480	74
6.		Canon 1D X Mark II	Full Frame	20.0	5472	3648	4K/60p	24.1	13.5	3207	88
7.		Canon 5D Mark II	Full Frame	21.0	5616	3744	1080/30p	23.7	11.9	1815	79
8.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
9.		Canon M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
10.		Canon M10	APS-C	17.9	5184	3456	1080/30p	22.2	11.4	753	65
11.		Canon SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
12.		Canon T3i	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	793	65
13.		Canon T4i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
14.		Canon T5	APS-C	17.9	5184	3456	1080/30p	21.9	11.3	724	63
15.		Canon T5i	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
16.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
17.		Canon T100	APS-C	17.9	5184	3456	1080/30p	21.9	11.4	695	63

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/30p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The SL1 and the 1D Mark IV 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 IV offers a wider field of view (100%) than the one in the SL1 (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 1D Mark IV has a higher magnification (0.58x 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 Canon SL1 and Canon 1D Mark IV 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 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 SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
2.		Canon 1D Mark IV	optical	Y	3.0 / 920	fixed	n	1/8000s	10.0/s	n	n
3.		Canon 1D Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	8.3/s	n	n
4.		Canon 1D Mark III	optical	Y	3.0 / 230	fixed	n	1/8000s	10.0/s	n	n
5.		Canon 1Ds Mark II	optical	Y	2.0 / 230	fixed	n	1/8000s	4.0/s	n	n
6.		Canon 1D X Mark II	optical	Y	3.2 / 1620	fixed	Y	1/8000s	16.0/s	n	n
7.		Canon 5D Mark II	optical	Y	3.0 / 920	fixed	n	1/8000s	3.9/s	n	n
8.		Canon G16	optical	n	3.0 / 922	fixed	n	1/4000s	2.2/s	Y	Y
9.		Canon M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
10.		Canon M10	none	n	3.0 / 1040	tilting	Y	1/4000s	4.6/s	Y	n
11.		Canon SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
12.		Canon T3i	optical	n	3.0 / 1040	swivel	n	1/4000s	3.7/s	Y	n
13.		Canon T4i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
14.		Canon T5	optical	n	3.0 / 460	fixed	n	1/4000s	3.0/s	Y	n
15.		Canon T5i	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
16.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
17.		Canon T100	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The SL1 has one, while the 1D Mark IV does not. While the built-in flash of the SL1 is not very powerful, it can at times be useful as a fill-in light.

The SL1 writes its imaging data to SDXC cards, while the 1D Mark IV uses Compact Flash or SDHC cards. The 1D Mark IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the SL1 only has one slot. The SL1 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the 1D Mark IV cannot take advantage of Ultra High Speed SD cards.

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 Rebel SL1 and Canon EOS-1D Mark IV 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 SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-
2.		Canon 1D Mark IV	Y	stereo / -	Y	-	mini	2.0	-	-	-
3.		Canon 1D Mark II	Y	- / -	-	-	-	1.1	-	-	-
4.		Canon 1D Mark III	Y	- / -	-	-	-	2.0	-	-	-
5.		Canon 1Ds Mark II	Y	- / -	-	-	-	2.0	-	-	-
6.		Canon 1D X Mark II	Y	mono / mono	Y	Y	mini	3.0	-	-	-
7.		Canon 5D Mark II	Y	mono / mono	Y	-	mini	2.0	-	-	-
8.		Canon G16	Y	stereo / mono	-	-	mini	2.0	Y	-	-
9.		Canon M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
10.		Canon M10	-	stereo / mono	-	-	mini	2.0	Y	Y	-
11.		Canon SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
12.		Canon T3i	Y	mono / mono	Y	-	mini	2.0	-	-	-
13.		Canon T4i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
14.		Canon T5	Y	mono / mono	-	-	mini	2.0	-	-	-
15.		Canon T5i	Y	stereo / mono	Y	-	mini	2.0	-	-	-
16.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
17.		Canon T100	Y	mono / mono	-	-	mini	2.0	Y	Y	-

Studio photographers will appreciate that the Canon 1D Mark IV (unlike the SL1) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the SL1 and the 1D Mark IV have been discontinued, but can regularly be found used on ebay. The SL1 was replaced by the Canon SL2, while the 1D Mark IV does not have a direct successor. Further information on the features and operation of the SL1 and 1D Mark IV can be found, respectively, in the Canon SL1 Manual (free pdf) or the online Canon 1D Mark IV Manual.

Review summary

So what is the bottom line? Which of the two cameras – the Canon SL1 or the Canon 1D Mark IV – 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 Rebel SL1:

• More detail: Offers more megapixels (17.9 vs 16MP) with a 6% higher linear resolution.
• Better jpgs: Has a more modern image processing engine (DIGIC 5 vs DIGIC IV).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More detailed LCD: Has a higher resolution rear screen (1040k vs 920k dots).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More compact: Is smaller (117x91mm vs 156x157mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 823g or 67 percent) and hence easier to carry around.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced into a lower priced category (89 percent cheaper at launch).
• More modern: Reflects 3 years and 5 months of technical progress since the 1D Mark IV launch.

Advantages of the Canon EOS-1D Mark IV:

• Better image quality: Scores substantially higher (11 points) in the DXO overall evaluation.
• More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
• Better low-light sensitivity: Can shoot in dim conditions (0.6 stops ISO advantage).
• 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 0.54x).
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 4.9 flaps/sec) to capture the decisive moment.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Gets more shots (1500 versus 380) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• 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 heavily discounted: Has been around for much longer (launched in October 2009).

If the count of relative strengths (bullet points above) is taken as a measure, the 1D Mark IV emerges as the winner of the match-up (14 : 11 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 SL1 and the Canon 1D Mark IV 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 incomplete and does no justice, for example, to the way the SL1 or the 1D Mark IV perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

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.

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 SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
2.		Canon 1D Mark IV	5/5	..	..	89/100	..	..	Oct 2009	4,999	ebay.com
3.		Canon 1D Mark II	..	..	..	+ +	..	..	Jan 2004	4,499	ebay.com
4.		Canon 1D Mark III	..	..	..	..	..	..	Feb 2007	4,499	ebay.com
5.		Canon 1Ds Mark II	..	..	..	+ +	..	..	Sep 2004	7,999	ebay.com
6.		Canon 1D X Mark II	..	..	4.5/5	89/100	4.5/5	4.5/5	Feb 2016	5,999	ebay.com
7.		Canon 5D Mark II	4/5	91/100	..	79/100	4/5	..	Sep 2008	3,499	ebay.com
8.		Canon G16	4/5	+	..	..	4.5/5	4.5/5	Aug 2013	549	ebay.com
9.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	599	ebay.com
10.		Canon M10	..	..	..	..	..	4/5	Oct 2015	499	ebay.com
11.		Canon SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	549	ebay.com
12.		Canon T3i	3/5	o	..	77/100	4.5/5	4.5/5	Feb 2011	599	ebay.com
13.		Canon T4i	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
14.		Canon T5	3/5	+	..	..	4/5	4.5/5	Feb 2014	449	ebay.com
15.		Canon T5i	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	649	ebay.com
16.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
17.		Canon T100	..	o	3/5	..	3.5/5	3.5/5	Feb 2018	399	amazon.com
Note: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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

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