Nikon 1 J4 vs D90

The Nikon 1 J4 and the Nikon D90 are two digital cameras that were announced, respectively, in April 2014 and August 2008. The J4 is a mirrorless interchangeable lens camera, while the D90 is a DSLR. The cameras are based on an one-inch (J4) and an APS-C (D90) sensor. The J4 has a resolution of 18.2 megapixels, whereas the D90 provides 12.2 MP.

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

Headline Specifications

Nikon 1 J4		Nikon D90
Mirrorless system camera		Digital single lens reflex
Nikon 1 mount lenses		Nikon F mount lenses
18.2 MP – 1" sensor		12.2 MP – APS-C sensor
1080/60p Video		720/24p Video
ISO 160-12,800		ISO 200-3,200 (200 - 6,400)
No viewfinder, LCD framing		Optical viewfinder
3.0" LCD – 1037k dots		3.0" LCD – 920k dots
no rear screen		Fixed screen (not touch-sensitive)
60 shutter flaps per second		4.5 shutter flaps per second
300 shots per battery charge		850 shots per battery charge
100 x 60 x 29 mm, 232 g		132 x 103 x 77 mm, 703 g

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Check D90 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon 1 J4 and the Nikon D90? 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 Nikon 1 J4 and the Nikon D90 are illustrated 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 size dimensions are rounded to the nearest millimeter.

The J4 can be obtained in four different colors (black, silver, orange, white), while the D90 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 Nikon D90 is considerably larger (127 percent) than the Nikon 1 J4. Moreover, the D90 is substantially heavier (203 percent) than the J4. In this context, it is worth noting that neither the J4 nor the D90 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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	Street Price
1.		Nikon 1 J4	100 mm	60 mm	29 mm	232 g	300	n	Apr 2014	EUR 589	ebay.com
2.		Nikon D90	132 mm	103 mm	77 mm	703 g	850	n	Aug 2008	EUR 1 189	ebay.com
3.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	EUR 1 299	ebay.com
4.		Canon 100D	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	EUR 499	ebay.com
5.		Canon 700D	133 mm	100 mm	79 mm	580 g	440	n	Mar 2013	EUR 599	ebay.com
6.		Canon G9 X	98 mm	58 mm	31 mm	209 g	220	n	Oct 2015	EUR 499	ebay.com
7.		Nikon 1 J5	98 mm	60 mm	32 mm	231 g	250	n	Apr 2015	EUR 449	ebay.com
8.		Nikon 1 V3	111 mm	65 mm	33 mm	381 g	310	n	Mar 2014	EUR 749	ebay.com
9.		Nikon D80	132 mm	103 mm	77 mm	668 g	600	n	Aug 2006	EUR 969	ebay.com
10.		Nikon D3000	126 mm	97 mm	64 mm	536 g	500	n	Jul 2009	EUR 539	ebay.com
11.		Nikon D5000	127 mm	104 mm	80 mm	590 g	510	n	Apr 2009	EUR 699	ebay.com
12.		Nikon D7000	132 mm	105 mm	77 mm	780 g	1050	Y	Sep 2010	EUR 1 399	ebay.com
13.		Nikon P900	140 mm	103 mm	137 mm	899 g	360	n	Mar 2015	EUR 619	ebay.com
14.		Panasonic G6	122 mm	85 mm	71 mm	390 g	340	n	Apr 2013	EUR 549	ebay.com
15.		Panasonic GF6	111 mm	65 mm	38 mm	323 g	340	n	Apr 2013	EUR 499	ebay.com
16.		Panasonic GF7	107 mm	65 mm	33 mm	266 g	230	n	Jan 2015	EUR 499	ebay.com
17.		Sony NEX-3N	110 mm	62 mm	35 mm	269 g	480	n	Feb 2013	EUR 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 naturally be influenced heavily by the price. 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 J4 was launched at a markedly lower price (by 58 percent) than the D90, 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 Nikon 1 J4 features an one-inch sensor and the Nikon D90 an APS-C sensor. The sensor area in the D90 is 222 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.7 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

In terms of chip-set technology, the J4 uses a more advanced image processing engine (EXPEED 4) than the D90 (EXPEED), with benefits for noise reduction, color accuracy, and processing speed.

Despite having a smaller sensor, the Nikon 1 J4 offers a higher resolution of 18.2 megapixels, compared with 12.2 MP of the Nikon D90. 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 2.52μm versus 5.53μm for the D90). However, it should be noted that the J4 is much more recent (by 5 years and 7 months) than the D90, 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 J4 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Nikon 1 J4 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the J4 for good quality output (200 dots per inch) amounts to 26.2 x 17.4 inches or 66.4 x 44.3 cm, for very good quality (250 dpi) 20.9 x 14 inches or 53.2 x 35.4 cm, and for excellent quality (300 dpi) 17.4 x 11.6 inches or 44.3 x 29.5 cm. The corresponding values for the Nikon D90 are 21.4 x 14.2 inches or 54.5 x 36.2 cm for good quality, 17.2 x 11.4 inches or 43.6 x 28.9 cm for very good quality, and 14.3 x 9.5 inches or 36.3 x 24.1 cm for excellent quality prints.

The J4 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon 1 J4 has a native sensitivity range from ISO 160 to ISO 12800. The corresponding ISO settings for the Nikon D90 are ISO 200 to ISO 3200, with the possibility to increase the ISO range to 200-6400.

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 D90 offers substantially better image quality than the J4 (overall score 20 points higher). The advantage is based on 1.9 bits higher color depth, 1.8 EV in additional dynamic range, and 1.2 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.		Nikon 1 J4	1-inch	18.2	5232	3488	1080/60p	20.8	10.7	426	53
2.		Nikon D90	APS-C	12.2	4288	2848	720/24p	22.7	12.5	977	73
3.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
4.		Canon 100D	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
5.		Canon 700D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	681	61
6.		Canon G9 X	1-inch	20.0	5472	3648	1080/60p	21.5	12.3	495	63
7.		Nikon 1 J5	1-inch	20.7	5568	3712	4K/15p	21.1	12.0	479	65
8.		Nikon 1 V3	1-inch	18.2	5232	3488	1080/60p	20.8	10.7	384	52
9.		Nikon D80	APS-C	10.0	3872	2592	none	22.1	11.2	524	61
10.		Nikon D3000	APS-C	10.0	3872	2592	none	22.3	11.1	563	62
11.		Nikon D5000	APS-C	12.2	4288	2848	720/24p	22.7	12.5	868	72
12.		Nikon D7000	APS-C	16.1	4928	3264	1080/24p	23.5	13.9	1167	80
13.		Nikon P900	1/2.3	15.9	4608	3456	1080/60p	20.2	11.6	727	47
14.		Panasonic G6	Four Thirds	15.9	4608	3456	1080/60p	21.3	11.5	639	61
15.		Panasonic GF6	Four Thirds	15.8	4592	3448	1080/60i	20.7	10.6	622	54
16.		Panasonic GF7	Four Thirds	15.8	4592	3448	1080/60p	22.7	12.3	874	70
17.		Sony NEX-3N	APS-C	16.0	4912	3264	1080/60i	22.8	12.5	1067	74
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the J4 provides a higher video resolution than the D90. It can shoot video footage at 1080/60p, while the D90 is limited to 720/24p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the D90 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the J4 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Nikon 1 J4 and Nikon D90 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 1 J4	none	n	3.0 / 1037	Fixed	Y	1/4000s	60.0/s	Y	n
2.		Nikon D90	optical	Y	3.0 / 920	fixed	n	1/4000s	4.5/s	Y	n
3.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
4.		Canon 100D	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
5.		Canon 700D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Canon G9 X	none	n	3.0 / 1040	fixed	Y	1/2000s	6.0/s	Y	Y
7.		Nikon 1 J5	none	n	3.0 / 1037	tilting	Y	1/4000s	60.0/s	Y	n
8.		Nikon 1 V3	optional	n	3.0 / 1037	tilting	Y	1/4000s	60.0/s	Y	n
9.		Nikon D80	optical	n	2.5 / 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 D5000	optical	n	2.7 / 230	full-flex	n	1/4000s	4.0/s	Y	n
12.		Nikon D7000	optical	Y	3.0 / 921	fixed	n	1/8000s	6.0/s	Y	n
13.		Nikon P900	921	n	3.0 / 921	swivel	n	1/4000s	7.0/s	Y	Y
14.		Panasonic G6	1440	n	3.0 / 1036	swivel	Y	1/4000s	7.0/s	Y	n
15.		Panasonic GF6	none	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
16.		Panasonic GF7	none	n	3.0 / 1040	tilting	Y	1/500s	5.8/s	Y	n
17.		Sony NEX-3N	optional	n	3.0 / 460	tilting	n	1/4000s	4.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The J4 has a touchscreen, while the D90 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the J4 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The J4 writes its imaging data to micro SDXC cards, while the D90 uses SDHC cards. The J4 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the D90 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 Nikon 1 J4 and Nikon D90 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 1 J4	-	stereo / mono	-	-	mini	2.0	Y	-	-
2.		Nikon D90	Y	mono / mono	-	-	mini	2.0	-	-	-
3.		Canon 40D	Y	- / -	-	-	-	2.0	-	-	-
4.		Canon 100D	Y	mono / mono	Y	-	mini	2.0	-	-	-
5.		Canon 700D	Y	stereo / mono	Y	-	mini	2.0	-	-	-
6.		Canon G9 X	-	stereo / mono	-	-	micro	2.0	Y	Y	-
7.		Nikon 1 J5	-	stereo / mono	-	-	micro	2.0	Y	Y	-
8.		Nikon 1 V3	-	stereo / mono	Y	-	mini	2.0	Y	-	-
9.		Nikon D80	Y	- / -	-	-	-	2.0	-	-	-
10.		Nikon D3000	Y	- / -	-	-	-	2.0	-	-	-
11.		Nikon D5000	Y	mono / mono	-	-	mini	2.0	-	-	-
12.		Nikon D7000	Y	mono / mono	Y	-	mini	2.0	-	-	-
13.		Nikon P900	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Panasonic G6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
15.		Panasonic GF6	-	stereo / mono	-	-	mini	2.0	Y	Y	-
16.		Panasonic GF7	-	stereo / mono	-	-	micro	2.0	Y	Y	-
17.		Sony NEX-3N	-	stereo / mono	-	-	micro	2.0	-	-	-

It is notable that the J4 offers wifi support, while the D90 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the J4 and the D90 have been discontinued, but can regularly be found used on ebay. The D90 was replaced by the Nikon D7000, while the J4 was followed by the Nikon 1 J5. Further information on the features and operation of the J4 and D90 can be found, respectively, in the Nikon 1 J4 Manual (free pdf) or the online Nikon D90 Manual.

Review summary

So what is the bottom line? Is the Nikon 1 J4 better than the Nikon D90 or vice versa? The listing below highlights the relative strengths of the two models.

Arguments in favor of the Nikon 1 J4:

• More detail: Offers more megapixels (18.2 vs 12.2MP) with a 22% higher linear resolution.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better jpgs: Has a more modern image processing engine (EXPEED 4 vs EXPEED).
• Better video: Provides higher definition movie capture (1080/60p vs 720/24p).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More detailed LCD: Has a higher resolution rear screen (1037k vs 920k dots).
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• Faster burst: Shoots at higher frequency (60 vs 4.5 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• More compact: Is smaller (100x60mm vs 132x103mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 471g or 67 percent) and hence easier to carry around.
• More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More affordable: Was introduced into a lower priced category (58 percent cheaper at launch).
• More modern: Reflects 5 years and 7 months of technical progress since the D90 launch.

Advantages of the Nikon D90:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Scores substantially higher (20 points) in the DXO overall evaluation.
• Richer colors: Generates noticeably more natural colors (1.9 bits more color depth).
• More dynamic range: Captures a broader range of light and dark details (1.8 EV of extra DR).
• Better low-light sensitivity: Can shoot in dim conditions (1.2 stops ISO advantage).
• Easier framing: Has an optical viewfinder for image composition and settings control.
• Easier setting verification: Features a control panel on top to check shooting parameters.
• Longer lasting: Gets more shots (850 versus 300) 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 August 2008).

If the count of relative strengths (bullet points above) is taken as a measure, the J4 is the clear winner of the match-up (16 : 10 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 Nikon 1 J4 and the Nikon D90 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR Camera listings 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 J4 or the D90. 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 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	Street Price
1.		Nikon 1 J4	3/5	..	..	..	4.5/5	4/5	Apr 2014	EUR 589	ebay.com
2.		Nikon D90	..	+ +	..	+ +	4/5	4.5/5	Aug 2008	EUR 1 189	ebay.com
3.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	EUR 1 299	ebay.com
4.		Canon 100D	4/5	+	..	78/100	4/5	4/5	Mar 2013	EUR 499	ebay.com
5.		Canon 700D	..	..	..	76/100	4.5/5	4.5/5	Mar 2013	EUR 599	ebay.com
6.		Canon G9 X	3.5/5	+ +	..	..	4.5/5	4.5/5	Oct 2015	EUR 499	ebay.com
7.		Nikon 1 J5	..	..	..	..	4.5/5	4.5/5	Apr 2015	EUR 449	ebay.com
8.		Nikon 1 V3	3/5	..	..	76/100	4.5/5	4/5	Mar 2014	EUR 749	ebay.com
9.		Nikon D80	..	+	..	+ +	o	4.5/5	Aug 2006	EUR 969	ebay.com
10.		Nikon D3000	..	+	..	72/100	4/5	4.5/5	Jul 2009	EUR 539	ebay.com
11.		Nikon D5000	..	+ +	..	75/100	4/5	4.5/5	Apr 2009	EUR 699	ebay.com
12.		Nikon D7000	4/5	..	..	80/100	4.5/5	4.5/5	Sep 2010	EUR 1 399	ebay.com
13.		Nikon P900	..	..	..	77/100	4/5	4/5	Mar 2015	EUR 619	ebay.com
14.		Panasonic G6	4/5	+ +	..	..	5/5	4.5/5	Apr 2013	EUR 549	ebay.com
15.		Panasonic GF6	..	+ +	..	..	4.5/5	4.5/5	Apr 2013	EUR 499	ebay.com
16.		Panasonic GF7	4/5	+	..	..	4.5/5	4.5/5	Jan 2015	EUR 499	ebay.com
17.		Sony NEX-3N	3/5	..	..	..	4.5/5	4.5/5	Feb 2013	EUR 499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date 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

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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