Nikon D4 vs Fujifilm X-Pro1

The Nikon D4 and the Fujifilm X-Pro1 are two digital cameras that were officially introduced in January 2012. The D4 is a DSLR, while the X-Pro1 is a mirrorless interchangeable lens camera. The cameras are based on a full frame (D4) and an APS-C (X-Pro1) sensor. The Nikon has a resolution of 16.2 megapixels, whereas the Fujifilm provides 16 MP.

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

Headline Specifications

Nikon D4		Fujifilm X-Pro1
Digital single lens reflex		Mirrorless system camera
Nikon F mount lenses		Fujifilm X mount lenses
16.2 MP – Full Frame sensor		16 MP – APS-C sensor
1080/30p Video		1080/24p Video
ISO 100-12,800 (50 - 204,800)		ISO 200-6,400 (100 - 25,600)
Optical viewfinder		Electronic viewfinder (1440k dots)
3.2" LCD – 921k dots		3.0" LCD – 1230k dots
Fixed screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
11 shutter flaps per second		6 shutter flaps per second
Weathersealed body		not weather sealed
2600 shots per battery charge		300 shots per battery charge
160 x 157 x 91 mm, 1340 g		140 x 82 x 43 mm, 450 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D4 and the Fujifilm X-Pro1? 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 Nikon D4 and the Fujifilm X-Pro1. 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 Fujifilm X-Pro1 is considerably smaller (54 percent) than the Nikon D4. Moreover, the X-Pro1 is substantially lighter (66 percent) than the D4. It is worth mentioning in this context that the D4 is splash and dust resistant, while the X-Pro1 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 will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Nikon Lens Catalog (D4) and the Fujinon X Lens Catalog (X-Pro1). Mirrorless cameras, such as the X-Pro1, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the D4 gets 2600 shots out of its Nikon EN-EL18 battery, while the X-Pro1 can take 300 images on a single charge of its Fujifilm NP-W126 power pack. As can be seen in the images above, the D4 has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power.

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	Street Price
1.		Nikon D4	160 mm	157 mm	91 mm	1340 g	2600	Y	Jan 2012	US$ 5 999	ebay.com
2.		Fujifilm X-Pro1	140 mm	82 mm	43 mm	450 g	300	n	Jan 2012	US$ 1 699	ebay.com
3.		Canon 1D X	158 mm	168 mm	83 mm	1551 g	1120	Y	Oct 2011	US$ 6 799	ebay.com
4.		Fujifilm X-E2	129 mm	75 mm	37 mm	350 g	350	n	Oct 2013	US$ 999	ebay.com
5.		Fujifilm X-M1	117 mm	67 mm	39 mm	330 g	350	n	Jun 2013	US$ 699	ebay.com
6.		Fujifilm X-Pro2	141 mm	83 mm	46 mm	495 g	350	Y	Jan 2016	US$ 1 699	ebay.com
7.		Fujifilm X-T1	129 mm	90 mm	47 mm	440 g	350	Y	Jan 2014	US$ 1 299	ebay.com
8.		Fujifilm X100S	127 mm	74 mm	54 mm	445 g	330	n	Jan 2013	US$ 1 299	ebay.com
9.		Nikon D3	160 mm	157 mm	88 mm	1300 g	4300	Y	Aug 2007	US$ 4 999	ebay.com
10.		Nikon D3S	160 mm	157 mm	88 mm	1240 g	4200	Y	Oct 2009	US$ 5 199	ebay.com
11.		Nikon D4S	160 mm	157 mm	91 mm	1350 g	3020	Y	Feb 2014	US$ 6 499	ebay.com
12.		Nikon D5	160 mm	159 mm	92 mm	1415 g	3780	Y	Jan 2016	US$ 6 499	ebay.com
13.		Nikon D600	141 mm	113 mm	82 mm	850 g	900	Y	Sep 2012	US$ 2 099	ebay.com
14.		Nikon D610	141 mm	113 mm	82 mm	850 g	900	Y	Oct 2013	US$ 1 999	ebay.com
15.		Nikon D800	146 mm	123 mm	82 mm	1000 g	900	Y	Feb 2012	US$ 2 999	ebay.com
16.		Nikon D800E	146 mm	123 mm	82 mm	1000 g	900	Y	Feb 2012	US$ 3 299	ebay.com
17.		Nikon Df	144 mm	110 mm	67 mm	760 g	1400	Y	Nov 2013	US$ 2 749	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

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 X-Pro1 was launched at a markedly lower price (by 72 percent) than the D4, 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 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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 D4 features a full frame sensor and the Fujifilm X-Pro1 an APS-C sensor. The sensor area in the X-Pro1 is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 16.2MP, the D4 offers a slightly higher resolution than the X-Pro1 (16MP), but the D4 nevertheless has larger individual pixels (pixel pitch of 7.29μm versus 4.80μm for the X-Pro1) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation. Coming back to sensor resolution, it should be mentioned that the X-Pro1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Nikon D4 has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 50-204800. The corresponding ISO settings for the Fujifilm X-Pro1 are ISO 200 to ISO 6400, with the possibility to increase the ISO range to 100-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Like most digital cameras, the D4 uses a Bayer filter for capturing RGB colors on a square grid of photosensors. In contrast, the X-Pro1 employs a more randomized X-Trans layout of photosites, which according to Fujifilm helps to minimize moiré.

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 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 D4	Full Frame	16.2	4928	3280	1080/30p	24.7	13.1	2965	89
2.		Fujifilm X-Pro1	APS-C	16.0	4896	3264	1080/24p	23.1	12.3	1238	74
3.		Canon 1D X	Full Frame	17.9	5184	3456	1080/30p	23.8	11.8	2786	82
4.		Fujifilm X-E2	APS-C	16.0	4896	3264	1080/60p	23.4	12.6	1400	77
5.		Fujifilm X-M1	APS-C	16.0	4896	3264	1080/30p	23.4	12.6	1371	76
6.		Fujifilm X-Pro2	APS-C	24.0	6000	4000	1080/60p	23.7	13.0	1608	80
7.		Fujifilm X-T1	APS-C	16.0	4896	3264	1080/60p	23.5	12.7	1426	77
8.		Fujifilm X100S	APS-C	16.0	4896	3264	1080/60p	23.3	12.5	1329	75
9.		Nikon D3	Full Frame	12.1	4256	2832	none	23.5	12.2	2290	81
10.		Nikon D3S	Full Frame	12.1	4256	2832	720/24p	23.5	12.0	3253	82
11.		Nikon D4S	Full Frame	16.2	4928	3280	1080/60p	24.4	13.3	3074	89
12.		Nikon D5	Full Frame	20.7	5588	3712	4K/30p	25.1	12.3	2343	88
13.		Nikon D600	Full Frame	24.2	6016	4016	1080/30p	25.1	14.2	2980	94
14.		Nikon D610	Full Frame	24.2	6016	4016	1080/30p	25.1	14.4	2925	94
15.		Nikon D800	Full Frame	36.2	7360	4912	1080/30p	25.3	14.4	2853	95
16.		Nikon D800E	Full Frame	36.2	7360	4912	1080/30p	25.6	14.3	2979	96
17.		Nikon Df	Full Frame	16.2	4928	3280	none	24.6	13.1	3279	89
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the D4 provides a higher frame rate than the X-Pro1. It can shoot video footage at 1080/30p, while the Fujifilm is limited to 1080/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the X-Pro1 has an electronic viewfinder (1440k dots), while the D4 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 Nikon D4 and Fujifilm X-Pro1 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 D4	optical	Y	3.2 / 921	fixed	n	1/8000s	11.0/s	n	n
2.		Fujifilm X-Pro1	1440	n	3.0 / 1230	fixed	n	1/4000s	6.0/s	n	n
3.		Canon 1D X	optical	Y	3.2 / 1040	fixed	n	1/8000s	14.0/s	n	n
4.		Fujifilm X-E2	2360	n	3.0 / 1040	fixed	n	1/4000s	7.0/s	Y	n
5.		Fujifilm X-M1	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
6.		Fujifilm X-Pro2	2360	n	3.0 / 1620	fixed	n	1/8000s	8.0/s	n	n
7.		Fujifilm X-T1	2360	n	3.0 / 1040	tilting	n	1/4000s	8.0/s	n	n
8.		Fujifilm X100S	2360	n	2.8 / 460	fixed	n	1/4000s	6.0/s	Y	n
9.		Nikon D3	optical	Y	3.0 / 922	fixed	n	1/8000s	11.0/s	n	n
10.		Nikon D3S	optical	Y	3.0 / 921	fixed	n	1/8000s	11.0/s	n	n
11.		Nikon D4S	optical	Y	3.2 / 921	fixed	n	1/8000s	11.0/s	n	n
12.		Nikon D5	optical	Y	3.2 / 2359	fixed	Y	1/8000s	14.0/s	n	n
13.		Nikon D600	optical	Y	3.0 / 921	fixed	n	1/4000s	5.5/s	Y	n
14.		Nikon D610	optical	Y	3.2 / 921	fixed	n	1/4000s	6.0/s	Y	n
15.		Nikon D800	optical	Y	3.2 / 921	fixed	n	1/8000s	4.0/s	Y	n
16.		Nikon D800E	optical	Y	3.2 / 921	fixed	n	1/8000s	4.0/s	Y	n
17.		Nikon Df	optical	Y	3.2 / 921	fixed	n	1/4000s	5.5/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 D4, but is missing on the X-Pro1 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 Nikon D4 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.

The D4 writes its imaging data to Compact Flash or XQD cards, while the X-Pro1 uses SDXC cards. The D4 features dual card slots, which can be very useful in case a memory card fails. In contrast, the X-Pro1 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 Nikon D4 and Fujifilm X-Pro1 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 D4	Y	mono / mono	Y	Y	micro	2.0	-	-	-
2.		Fujifilm X-Pro1	Y	stereo / mono	-	-	mini	2.0	-	-	-
3.		Canon 1D X	Y	mono / -	Y	-	mini	2.0	-	-	-
4.		Fujifilm X-E2	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
5.		Fujifilm X-M1	Y	stereo / mono	-	-	mini	2.0	Y	-	-
6.		Fujifilm X-Pro2	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
7.		Fujifilm X-T1	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
8.		Fujifilm X100S	Y	stereo / mono	-	-	micro	2.0	-	-	-
9.		Nikon D3	Y	- / -	-	-	mini	2.0	-	-	-
10.		Nikon D3S	Y	stereo / -	-	-	mini	2.0	-	-	-
11.		Nikon D4S	Y	mono / mono	Y	Y	mini	2.0	-	-	-
12.		Nikon D5	Y	stereo / mono	Y	Y	mini	3.0	-	-	-
13.		Nikon D600	Y	mono / mono	Y	Y	mini	2.0	-	-	-
14.		Nikon D610	Y	mono / mono	Y	Y	mini	2.0	-	-	-
15.		Nikon D800	Y	mono / mono	Y	Y	mini	3.0	-	-	-
16.		Nikon D800E	Y	mono / mono	Y	Y	mini	3.0	-	-	-
17.		Nikon Df	Y	- / -	-	-	mini	2.0	-	-	-

It is notable that the D4 has a microphone port, which is missing on the X-Pro1. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Both the D4 and the X-Pro1 have been discontinued, but can regularly be found used on ebay. The D4 was replaced by the Nikon D4S, while the X-Pro1 was followed by the Fujifilm X-Pro2. Further information on the features and operation of the D4 and X-Pro1 can be found, respectively, in the Nikon D4 Manual (free pdf) or the online Fujifilm X-Pro1 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Nikon D4 and the Fujifilm X-Pro1? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Nikon D4:

• 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.
• Better video: Provides higher movie framerates (1080/30p versus 1080/24p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (11 vs 6 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Longer lasting: Can take more shots (2600 versus 300) on a single battery charge.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• Greater peace of mind: Features a second card slot as a backup in case of memory card failure.

Arguments in favor of the Fujifilm X-Pro1:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• More framing info: Has an electronic viewfinder that displays shooting data.
• More detailed LCD: Has a higher resolution rear screen (1230k vs 921k dots).
• More compact: Is smaller (140x82mm vs 160x157mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 890g or 66 percent) and is thus easier to take along.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• More affordable: Was introduced into a lower priced category (72 percent cheaper at launch).

If the count of relative strengths (bullet points above) is taken as a measure, the D4 is the clear winner of the match-up (18 : 7 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 Nikon D4 and the Fujifilm X-Pro1 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 D4 or the X-Pro1. 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 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	Street Price
1.		Nikon D4	..	..	..	..	4.5/5	4.5/5	Jan 2012	US$ 5 999	ebay.com
2.		Fujifilm X-Pro1	5/5	+ +	..	79/100	4.5/5	4.5/5	Jan 2012	US$ 1 699	ebay.com
3.		Canon 1D X	5/5	..	..	..	4.5/5	4.5/5	Oct 2011	US$ 6 799	ebay.com
4.		Fujifilm X-E2	4/5	..	..	80/100	4.5/5	5/5	Oct 2013	US$ 999	ebay.com
5.		Fujifilm X-M1	3/5	+	..	77/100	4.5/5	4.5/5	Jun 2013	US$ 699	ebay.com
6.		Fujifilm X-Pro2	..	+	..	83/100	4.5/5	4.5/5	Jan 2016	US$ 1 699	ebay.com
7.		Fujifilm X-T1	5/5	+ +	..	84/100	5/5	5/5	Jan 2014	US$ 1 299	ebay.com
8.		Fujifilm X100S	5/5	+ +	..	81/100	4.5/5	5/5	Jan 2013	US$ 1 299	ebay.com
9.		Nikon D3	..	..	..	+ +	5/5	4.5/5	Aug 2007	US$ 4 999	ebay.com
10.		Nikon D3S	5/5	..	..	89/100	4.5/5	5/5	Oct 2009	US$ 5 199	ebay.com
11.		Nikon D4S	5/5	..	..	..	4.5/5	4.5/5	Feb 2014	US$ 6 499	ebay.com
12.		Nikon D5	..	..	4/5	89/100	4.5/5	5/5	Jan 2016	US$ 6 499	ebay.com
13.		Nikon D600	4/5	+ +	..	87/100	5/5	4.5/5	Sep 2012	US$ 2 099	ebay.com
14.		Nikon D610	4/5	+ +	..	87/100	4.5/5	4.5/5	Oct 2013	US$ 1 999	ebay.com
15.		Nikon D800	5/5	+ +	..	82/100	5/5	5/5	Feb 2012	US$ 2 999	ebay.com
16.		Nikon D800E	..	..	..	84/100	5/5	5/5	Feb 2012	US$ 3 299	ebay.com
17.		Nikon Df	4/5	..	..	81/100	4/5	4/5	Nov 2013	US$ 2 749	ebay.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. 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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