Canon SX70 vs Nikon D40X

The Canon PowerShot SX70 HS and the Nikon D40X are two digital cameras that were revealed to the public, respectively, in September 2018 and March 2007. The SX70 is a fixed lens compact, while the D40X is a DSLR. The cameras are based on a 1/2.3-inch (SX70) and an APS-C (D40X) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Nikon provides 10 MP.

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

Headline Specifications

Canon SX70		Nikon D40X
Fixed lens compact camera		Digital single lens reflex
21-1365mm f/3.4-6.5		Nikon F mount lenses
20.2 MP – 1/2.3" sensor		10 MP – APS-C sensor
4K/30p Video		no Video
ISO 100-3,200		ISO 100-1,600 (100 - 3,200)
Electronic viewfinder (2360k dots)		Optical viewfinder
3.0" LCD – 922k dots		2.5" LCD – 230k dots
Swivel screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
10 shutter flaps per second		3 shutter flaps per second
325 shots per battery charge		520 shots per battery charge
127 x 91 x 117 mm, 608 g		124 x 94 x 64 mm, 522 g

Check SX70 price at
amazon.com
Check D40X offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX70 HS and the Nikon D40X? 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 side-by-side display below illustrates the physical size and weight of the Canon SX70 and the Nikon D40X. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The D40X can be obtained in two different colors (black, silver), while the SX70 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 SX70 and the Nikon D40X are of equal size. In this context, it is worth noting that neither the SX70 nor the D40X are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX70 has a lens built in, whereas the D40X is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the D40X and their specifications in the Nikon Lens Catalog.

Concerning battery life, the SX70 gets 325 shots out of its Canon LP-E12 battery, while the D40X can take 520 images on a single charge of its Nikon EN-EL9 power pack.

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 SX70	127 mm	91 mm	117 mm	608 g	325	n	Sep 2018	549	amazon.com
2.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	ebay.com
3.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399	amazon.com
4.		Canon SX430	104 mm	69 mm	85 mm	323 g	195	n	Jan 2017	299	ebay.com
5.		Canon 77D	131 mm	100 mm	76 mm	540 g	600	n	Feb 2017	899	ebay.com
6.		Canon G9 X Mark II	98 mm	58 mm	31 mm	206 g	235	n	Jan 2017	529	ebay.com
7.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	399	ebay.com
8.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
9.		Canon SX1	128 mm	88 mm	88 mm	615 g	..	n	Sep 2008	599	ebay.com
10.		Nikon B700	125 mm	85 mm	107 mm	565 g	350	n	Feb 2016	499	ebay.com
11.		Nikon D3000	126 mm	97 mm	64 mm	536 g	500	n	Jul 2009	599	ebay.com
12.		Nikon D5000	127 mm	104 mm	80 mm	590 g	510	n	Apr 2009	749	ebay.com
13.		Nikon D60	126 mm	94 mm	64 mm	522 g	500	n	Jan 2008	629	ebay.com
14.		Nikon D40	124 mm	94 mm	64 mm	522 g	470	n	Nov 2006	499	ebay.com
15.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	999	ebay.com
16.		Panasonic FZ80	130 mm	94 mm	119 mm	616 g	330	n	Jan 2017	399	ebay.com
17.		Sony HX400V	130 mm	93 mm	103 mm	660 g	300	n	Feb 2014	499	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 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 SX70 was launched at a lower price than the D40X, despite having a lens built in. 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. 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. 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 SX70 features a 1/2.3-inch sensor and the Nikon D40X an APS-C sensor. The sensor area in the D40X is 1232 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the SX70 has a native 4:3 aspect ratio, while the one in the D40X offers a 3:2 aspect.

Despite having a smaller sensor, the Canon SX70 offers a higher resolution of 20.2 megapixels, compared with 10 MP of the Nikon D40X. 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 1.18μm versus 6.11μm for the D40X). However, it should be noted that the SX70 is much more recent (by 11 years and 6 months) than the D40X, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX70 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon SX70 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX70 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Nikon D40X are 19.4 x 13 inches or 49.2 x 32.9 cm for good quality, 15.5 x 10.4 inches or 39.3 x 26.3 cm for very good quality, and 12.9 x 8.6 inches or 32.8 x 21.9 cm for excellent quality prints.

The Canon PowerShot SX70 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Nikon D40X are ISO 100 to ISO 1600, with the possibility to increase the ISO range to 100-3200.

In terms of underlying technology, the SX70 is build around a BSI-CMOS sensor, while the D40X uses a CCD imager. 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 determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). 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 SX70	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1063	51
2.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63
3.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
4.		Canon SX430	1/2.3	19.9	5152	3864	720/25p	20.5	11.9	900	49
5.		Canon 77D	APS-C	24.0	6000	4000	1080/60p	23.6	13.3	971	78
6.		Canon G9 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.9	12.5	522	65
7.		Canon SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
8.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
9.		Canon SX1	1/2.3	10.0	3648	2736	1080/30p	19.0	10.3	144	35
10.		Nikon B700	1/2.3	20.2	5184	3888	4K/30p	20.4	11.8	818	48
11.		Nikon D3000	APS-C	10.0	3872	2592	none	22.3	11.1	563	62
12.		Nikon D5000	APS-C	12.2	4288	2848	720/24p	22.7	12.5	868	72
13.		Nikon D60	APS-C	10.0	3872	2592	none	22.5	11.4	562	65
14.		Nikon D40	APS-C	6.0	3008	2000	none	21.0	11.0	561	56
15.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
16.		Panasonic FZ80	1/2.3	18.0	4896	3672	4K/30p	20.5	11.9	900	49
17.		Sony HX400V	1/2.3	20.2	5184	3888	1080/60p	20.1	11.4	629	45
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 can also record movies. The SX70 indeed provides movie recording capabilities, while the D40X does not. The highest resolution format that the SX70 can use is 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the SX70 has an electronic viewfinder (2360k dots), while the D40X 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 adjacent table lists some of the other core features of the Canon SX70 and Nikon D40X along with similar information for a selection of comparators.

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 SX70	2360	n	3.0 / 922	swivel	n	1/2000s	10.0/s	Y	Y
2.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
3.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
4.		Canon SX430	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
5.		Canon 77D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
6.		Canon G9 X Mark II	none	n	3.0 / 1040	fixed	Y	1/2000s	8.2/s	Y	Y
7.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
8.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
9.		Canon SX1	202	n	2.8 / 230	swivel	n	1/3200s	4.0/s	Y	Y
10.		Nikon B700	921	n	3.0 / 921	swivel	n	1/4000s	5.0/s	Y	Y
11.		Nikon D3000	optical	n	3.0 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Nikon D5000	optical	n	2.7 / 230	full-flex	n	1/4000s	4.0/s	Y	n
13.		Nikon D60	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Nikon D40	optical	n	2.5 / 230	fixed	n	1/4000s	2.5/s	Y	n
15.		Nikon D80	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
16.		Panasonic FZ80	1166	n	3.0 / 1040	fixed	Y	1/2000s	10.0/s	Y	Y
17.		Sony HX400V	210	n	3.0 / 921	tilting	n	1/4000s	10.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The SX70 writes its imaging data to SDXC cards, while the D40X uses SDHC cards. The SX70 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D40X 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 PowerShot SX70 HS and Nikon D40X 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 SX70	-	stereo / mono	Y	-	micro	2.0	Y	-	Y
2.		Nikon D40X	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
4.		Canon SX430	-	mono / mono	-	-	-	2.0	Y	Y	-
5.		Canon 77D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
6.		Canon G9 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
7.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
8.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon SX1	Y	stereo / mono	-	-	YES	2.0	-	-	-
10.		Nikon B700	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
11.		Nikon D3000	Y	- / -	-	-	-	2.0	-	-	-
12.		Nikon D5000	Y	mono / mono	-	-	mini	2.0	-	-	-
13.		Nikon D60	Y	- / -	-	-	-	2.0	-	-	-
14.		Nikon D40	Y	- / -	-	-	-	2.0	-	-	-
15.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
16.		Panasonic FZ80	Y	stereo / mono	-	-	micro	2.0	Y	-	-
17.		Sony HX400V	Y	stereo / mono	-	-	micro	2.0	Y	Y	-

It is notable that the SX70 offers wifi support, while the D40X does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

The SX70 is a recent model that features in the current product line-up of Canon. In contrast, the D40X has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the D40X was succeeded by the Nikon D60 . Further information on the features and operation of the SX70 and D40X can be found, respectively, in the Canon SX70 Manual (free pdf) or the online Nikon D40X Manual.

Review summary

So what conclusions can be drawn? Is the Canon SX70 better than the Nikon D40X or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon PowerShot SX70 HS:

• More detail: Offers more megapixels (20.2 vs 10MP) with a 39% higher linear resolution.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Broader imaging potential: Can record not only still images but also 4K/30p movies.
• More framing info: Has an electronic viewfinder that displays shooting data.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
• Ready to shoot: Comes with a built-in lens, while the D40X requires a separate lens.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• 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.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 11 years and 6 months of technical progress since the D40X launch.

Advantages of the Nikon D40X:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
• Richer colors: The pixel size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Longer lasting: Gets more shots (520 versus 325) out of a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been around for much longer (launched in March 2007).

If the number of relative strengths (bullet points above) is taken as a guide, the SX70 is the clear winner of the match-up (16 : 11 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 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 SX70 and the Nikon D40X place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings 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 SX70 or the D40X. 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 SX70	..	+ +	3.5/5	..	3.5/5	3.5/5	Sep 2018	549	amazon.com
2.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
3.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	399	amazon.com
4.		Canon SX430	..	..	..	..	3.5/5	3.5/5	Jan 2017	299	ebay.com
5.		Canon 77D	4.5/5	..	4/5	82/100	4.5/5	4/5	Feb 2017	899	ebay.com
6.		Canon G9 X Mark II	4/5	..	4/5	75/100	4.5/5	4.5/5	Jan 2017	529	ebay.com
7.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	399	ebay.com
8.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
9.		Canon SX1	..	+ +	..	+	..	3.5/5	Sep 2008	599	ebay.com
10.		Nikon B700	..	+	..	..	4/5	4/5	Feb 2016	499	ebay.com
11.		Nikon D3000	..	+	..	72/100	4/5	4.5/5	Jul 2009	599	ebay.com
12.		Nikon D5000	..	+ +	..	75/100	4/5	4.5/5	Apr 2009	749	ebay.com
13.		Nikon D60	..	80/100	..	+ +	4/5	4.5/5	Jan 2008	629	ebay.com
14.		Nikon D40	..	81/100	..	+ +	o	4.5/5	Nov 2006	499	ebay.com
15.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	999	ebay.com
16.		Panasonic FZ80	..	+ +	..	..	4.5/5	4.5/5	Jan 2017	399	ebay.com
17.		Sony HX400V	4/5	+ +	..	..	4/5	4/5	Feb 2014	499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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 a corresponding selection in the search boxes below. 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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