Nikon D5000 vs D40

The Nikon D5000 and the Nikon D40 are two digital cameras that were announced, respectively, in April 2009 and November 2006. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The D5000 has a resolution of 12.2 megapixels, whereas the D40 provides 6 MP.

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

Headline Specifications

Nikon D5000		Nikon D40
Digital single lens reflex		Digital single lens reflex
Nikon F mount lenses		Nikon F mount lenses
12.2 MP – APS-C sensor		6 MP – APS-C sensor
720/24p Video		no Video
ISO 200-3,200 (200 - 6,400)		ISO 200-1,600 (200 - 3,200)
Optical viewfinder		Optical viewfinder
2.7" LCD – 230k dots		2.5" LCD – 230k dots
Fully flexible screen (no touchscreen)		Fixed screen (not touch-sensitive)
4 shutter flaps per second		2.5 shutter flaps per second
510 shots per battery charge		470 shots per battery charge
127 x 104 x 80 mm, 590 g		124 x 94 x 64 mm, 522 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D5000 and the Nikon D40? 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

An illustration of the physical size and weight of the Nikon D5000 and the Nikon D40 is provided in the side-by-side display below. 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Nikon D40 is notably smaller (12 percent) than the Nikon D5000. Moreover, the D40 is markedly lighter (12 percent) than the D5000. In this context, it is worth noting that neither the D5000 nor the D40 are weather-sealed.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can compare the optics available in the Nikon Lens Catalog.

Concerning battery life, the D5000 gets 510 shots out of its Nikon EN-EL9a battery, while the D40 can take 470 images on a single charge of its Nikon EN-EL9 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.		Nikon D5000	127 mm	104 mm	80 mm	590 g	510	n	Apr 2009	749	ebay.com
2.		Nikon D40	124 mm	94 mm	64 mm	522 g	470	n	Nov 2006	499	ebay.com
3.		Canon XSi	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
4.		Nikon D5600	124 mm	97 mm	70 mm	465 g	970	n	Nov 2016	699	ebay.com
5.		Nikon D3400	124 mm	98 mm	76 mm	445 g	1200	n	Aug 2016	499	ebay.com
6.		Nikon D3300	124 mm	98 mm	76 mm	430 g	700	n	Jan 2014	499	ebay.com
7.		Nikon D5200	129 mm	98 mm	78 mm	555 g	500	n	Nov 2012	749	ebay.com
8.		Nikon D5100	128 mm	97 mm	79 mm	560 g	660	n	Apr 2011	749	ebay.com
9.		Nikon D3100	124 mm	96 mm	75 mm	505 g	550	n	Aug 2010	599	ebay.com
10.		Nikon D3000	126 mm	97 mm	64 mm	536 g	500	n	Jul 2009	599	ebay.com
11.		Nikon D60	126 mm	94 mm	64 mm	522 g	500	n	Jan 2008	629	ebay.com
12.		Nikon D90	132 mm	103 mm	77 mm	703 g	850	n	Aug 2008	1,299	ebay.com
13.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	ebay.com
14.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	999	ebay.com
15.		Nikon D50	133 mm	102 mm	76 mm	620 g	400	n	Apr 2005	749	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

The price is, of course, an important factor in any camera decision. 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 D40 was launched at a markedly lower price (by 33 percent) than the D5000, 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. 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the D40 is 1 percent smaller. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 12.2MP, the D5000 offers a higher resolution than the D40 (6MP), but the D5000 has smaller individual pixels (pixel pitch of 5.53μm versus 7.85μm for the D40). However, the D5000 is a much more recent model (by 2 years and 4 months) than the D40, 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 Nikon D5000 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the D5000 for good quality output (200 dots per inch) amounts to 21.4 x 14.2 inches or 54.5 x 36.2 cm, for very good quality (250 dpi) 17.2 x 11.4 inches or 43.6 x 28.9 cm, and for excellent quality (300 dpi) 14.3 x 9.5 inches or 36.3 x 24.1 cm. The corresponding values for the Nikon D40 are 15 x 10 inches or 38.2 x 25.4 cm for good quality, 12 x 8 inches or 30.6 x 20.3 cm for very good quality, and 10 x 6.7 inches or 25.5 x 16.9 cm for excellent quality prints.

The Nikon D5000 has a native sensitivity range from ISO 200 to ISO 3200, which can be extended to ISO 200-6400. The corresponding ISO settings for the Nikon D40 are ISO 200 to ISO 1600, with the possibility to increase the ISO range to 200-3200.

In terms of underlying technology, the D5000 is build around a CMOS sensor, while the D40 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.

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 D5000 provides substantially higher image quality than the D40, with an overall score that is 16 points higher. This advantage is based on 1.7 bits higher color depth, 1.5 EV in additional dynamic range, and 0.6 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

#		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon D5000	APS-C	12.2	4288	2848	720/24p	22.7	12.5	868	72
2.		Nikon D40	APS-C	6.0	3008	2000	none	21.0	11.0	561	56
3.		Canon XSi	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
4.		Nikon D5600	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1306	84
5.		Nikon D3400	APS-C	24.0	6000	4000	1080/60p	24.8	13.9	1192	86
6.		Nikon D3300	APS-C	24.0	6000	4000	1080/60p	24.3	12.8	1385	82
7.		Nikon D5200	APS-C	24.0	6000	4000	1080/60i	24.2	13.9	1284	84
8.		Nikon D5100	APS-C	16.1	4928	3264	1080/30p	23.5	13.6	1183	80
9.		Nikon D3100	APS-C	14.2	4608	3072	1080/24p	22.5	11.3	919	67
10.		Nikon D3000	APS-C	10.0	3872	2592	none	22.3	11.1	563	62
11.		Nikon D60	APS-C	10.0	3872	2592	none	22.5	11.4	562	65
12.		Nikon D90	APS-C	12.2	4288	2848	720/24p	22.7	12.5	977	73
13.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63
14.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
15.		Nikon D50	APS-C	6.0	3008	2000	none	20.9	10.8	560	55

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The D5000 indeed provides movie recording capabilities, while the D40 does not. The highest resolution format that the D5000 can use is 720/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The D5000 and the D40 are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The viewfinders of both cameras offer the same field of view (95%), but the viewfinder of the D40 has a higher magnification than the one of the D5000 (0.53x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Nikon D5000 and Nikon D40 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.		Nikon D5000	optical	n	2.7 / 230	full-flex	n	1/4000s	4.0/s	Y	n
2.		Nikon D40	optical	n	2.5 / 230	fixed	n	1/4000s	2.5/s	Y	n
3.		Canon XSi	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
4.		Nikon D5600	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
5.		Nikon D3400	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
6.		Nikon D3300	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
7.		Nikon D5200	optical	n	3.0 / 921	swivel	n	1/4000s	5.0/s	Y	n
8.		Nikon D5100	optical	n	3.0 / 921	swivel	n	1/4000s	4.0/s	Y	n
9.		Nikon D3100	optical	n	3.0 / 230	fixed	n	1/4000s	3.0/s	Y	n
10.		Nikon D3000	optical	n	3.0 / 230	fixed	n	1/4000s	3.0/s	Y	n
11.		Nikon D60	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Nikon D90	optical	Y	3.0 / 920	fixed	n	1/4000s	4.5/s	Y	n
13.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Nikon D80	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
15.		Nikon D50	optical	n	2.0 / 130	fixed	n	1/4000s	2.5/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Nikon D5000 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.

Concerning the storage of imaging data, both the D5000 and the D40 write their files to SDHC 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 Nikon D5000 and Nikon D40 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.		Nikon D5000	Y	mono / mono	-	-	mini	2.0	-	-	-
2.		Nikon D40	Y	- / -	-	-	-	2.0	-	-	-
3.		Canon XSi	Y	- / -	-	-	mini	2.0	-	-	-
4.		Nikon D5600	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
5.		Nikon D3400	Y	mono / mono	-	-	mini	2.0	-	-	Y
6.		Nikon D3300	Y	mono / mono	Y	-	mini	2.0	-	-	-
7.		Nikon D5200	Y	stereo / mono	Y	-	mini	2.0	-	-	-
8.		Nikon D5100	Y	mono / mono	Y	-	mini	2.0	-	-	-
9.		Nikon D3100	Y	mono / mono	-	-	mini	2.0	-	-	-
10.		Nikon D3000	Y	- / -	-	-	-	2.0	-	-	-
11.		Nikon D60	Y	- / -	-	-	-	2.0	-	-	-
12.		Nikon D90	Y	mono / mono	-	-	mini	2.0	-	-	-
13.		Nikon D40X	Y	- / -	-	-	-	2.0	-	-	-
14.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
15.		Nikon D50	Y	- / -	-	-	-	2.0	-	-	-

Both the D5000 and the D40 have been discontinued, but can regularly be found used on ebay. The D40 was replaced by the Nikon D40X, while the D5000 was followed by the Nikon D5100. Further information on the features and operation of the D5000 and D40 can be found, respectively, in the Nikon D5000 Manual (free pdf) or the online Nikon D40 Manual.

Review summary

So what conclusions can be drawn? Is the Nikon D5000 better than the Nikon D40 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Nikon D5000:

• More detail: Offers more megapixels (12.2 vs 6MP) with a 43% higher linear resolution.
• Better image quality: Scores substantially higher (16 points) in the DXO overall assessment.
• Richer colors: Generates images with noticeably better colors (1.7 bits more color depth).
• More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
• Better low-light sensitivity: Requires less light for good images (0.6 stops ISO advantage).
• Broader imaging potential: Can record not only still images but also 720/24p movies.
• Larger screen: Has a bigger rear LCD (2.7" vs 2.5") for image review and settings control.
• More flexible LCD: Has a full-flex 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 (4 vs 2.5 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More modern: Reflects 2 years and 4 months of technical progress since the D40 launch.

Advantages of the Nikon D40:

• Larger viewfinder image: Features a viewfinder with a higher magnification (0.53x vs 0.51x).
• More compact: Is smaller (124x94mm vs 127x104mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 68g or 12 percent) and is thus easier to take along.
• More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
• More heavily discounted: Has been around for much longer (launched in November 2006).

If the count of individual advantages (bullet points above) is taken as a guide, the D5000 is the clear winner of the match-up (12 : 5 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Nikon D5000 and the Nikon D40 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 says little about, for example, the shooting experience and imaging performance of the D5000 and the D40 in practical situations. 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 why expert reviews are important. 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.		Nikon D5000	..	+ +	..	75/100	4/5	4.5/5	Apr 2009	749	ebay.com
2.		Nikon D40	..	81/100	..	+ +	o	4.5/5	Nov 2006	499	ebay.com
3.		Canon XSi	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
4.		Nikon D5600	4/5	..	4/5	79/100	4.5/5	4/5	Nov 2016	699	ebay.com
5.		Nikon D3400	4/5	+	4/5	76/100	4/5	4.5/5	Aug 2016	499	ebay.com
6.		Nikon D3300	3/5	+	..	77/100	4.5/5	4.5/5	Jan 2014	499	ebay.com
7.		Nikon D5200	4/5	+ +	..	79/100	4.5/5	4.5/5	Nov 2012	749	ebay.com
8.		Nikon D5100	5/5	+ +	..	76/100	4.5/5	4.5/5	Apr 2011	749	ebay.com
9.		Nikon D3100	5/5	+ +	..	72/100	4.5/5	4.5/5	Aug 2010	599	ebay.com
10.		Nikon D3000	..	+	..	72/100	4/5	4.5/5	Jul 2009	599	ebay.com
11.		Nikon D60	..	80/100	..	+ +	4/5	4.5/5	Jan 2008	629	ebay.com
12.		Nikon D90	..	+ +	..	+ +	4/5	4.5/5	Aug 2008	1,299	ebay.com
13.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
14.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	999	ebay.com
15.		Nikon D50	..	78/100	..	+ +	4/5	4.5/5	Apr 2005	749	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. 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. 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

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