Nikon D1 vs Sony A7

The Nikon D1 and the Sony Alpha A7 are two digital cameras that were officially introduced, respectively, in June 1999 and October 2013. The D1 is a DSLR, while the A7 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (D1) and a full frame (A7) sensor. The Nikon has a resolution of 2.6 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications

Nikon D1		Sony A7
Digital single lens reflex		Mirrorless system camera
Nikon F mount lenses		Sony E mount lenses
2.6 MP – APS-C sensor		24 MP – Full Frame sensor
no Video		1080/60p Video
ISO 200-1,600 (200 - 6,400)		ISO 100-25,600 (50 - 51,200)
Optical viewfinder		Electronic viewfinder (2400k dots)
2.0" LCD – 120k dots		3.0" LCD – 1230k dots
Fixed screen (not touch-sensitive)		Tilting screen (no touchscreen)
4.5 shutter flaps per second		5 shutter flaps per second
Weathersealed body		Weathersealed body
157 x 153 x 85 mm, 1100 g		127 x 94 x 48 mm, 474 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon D1 and the Sony Alpha A7? 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 D1 and the Sony A7. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size 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 Sony A7 is considerably smaller (50 percent) than the Nikon D1. Moreover, the A7 is substantially lighter (57 percent) than the D1. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 (D1) and the Sony FE Lens Catalog (A7). Mirrorless cameras, such as the A7, 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 D1 gets .. shots out of its Nikon EN-4 battery, while the A7 can take 340 images on a single charge of its Sony NP-FW50 power pack. As can be seen in the images above, the D1 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 A7, Sony provides the VG-C1EM vertical grip as an optional accessory (see here on ebay). The power pack in the A7 can be charged via the USB port, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons 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 D1	157 mm	153 mm	85 mm	1100 g	..	Y	Jun 1999	US$ 5 499	ebay.com
2.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	US$ 1 699	ebay.com
3.		Nikon D1H	157 mm	153 mm	85 mm	1100 g	1200	Y	Feb 2001	US$ 4 499	ebay.com
4.		Nikon D1X	157 mm	153 mm	85 mm	1100 g	1200	Y	Feb 2001	US$ 5 999	ebay.com
5.		Nikon D2X	158 mm	150 mm	86 mm	1252 g	3800	Y	Sep 2004	US$ 4 999	ebay.com
6.		Nikon D2Xs	158 mm	150 mm	86 mm	1252 g	3800	Y	Jun 2006	US$ 4 699	ebay.com
7.		Nikon D3	160 mm	157 mm	88 mm	1300 g	4300	Y	Aug 2007	US$ 4 999	ebay.com
8.		Nikon D3S	160 mm	157 mm	88 mm	1240 g	4200	Y	Oct 2009	US$ 5 199	ebay.com
9.		Nikon D4	160 mm	157 mm	91 mm	1340 g	2600	Y	Jan 2012	US$ 5 999	ebay.com
10.		Nikon D200	147 mm	113 mm	74 mm	920 g	400	Y	Nov 2005	US$ 1 699	ebay.com
11.		Nikon D300	147 mm	114 mm	74 mm	925 g	1000	Y	Aug 2007	US$ 1 799	ebay.com
12.		Nikon D300S	147 mm	115 mm	81 mm	938 g	950	Y	Jul 2009	US$ 1 799	ebay.com
13.		Samsung NX1	139 mm	102 mm	66 mm	550 g	500	Y	Sep 2014	US$ 1 499	ebay.com
14.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	US$ 1 999	ebay.com
15.		Sony A7C	124 mm	71 mm	60 mm	509 g	740	Y	Sep 2020	US$ 1 799	amazon.com
16.		Sony A7R	127 mm	94 mm	48 mm	465 g	340	Y	Oct 2013	US$ 2 299	ebay.com
17.		Sony A7S	127 mm	94 mm	48 mm	489 g	380	Y	Apr 2014	US$ 2 499	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

The price is, of course, an important factor in any camera decision. 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 A7 was launched at a markedly lower price (by 69 percent) than the D1, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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. 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 D1 features an APS-C sensor and the Sony A7 a full frame sensor. The sensor area in the A7 is 131 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 24MP, the A7 offers a higher resolution than the D1 (2.6MP), but the A7 has smaller individual pixels (pixel pitch of 5.97μm versus 11.93μm for the D1). Yet, the A7 is a much more recent model (by 14 years and 4 months) than the D1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Nikon D1 are 10 x 6.6 inches or 25.4 x 16.7 cm for good quality, 8 x 5.2 inches or 20.3 x 13.3 cm for very good quality, and 6.7 x 4.4 inches or 16.9 x 11.1 cm for excellent quality prints.

The A7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Nikon D1 has a native sensitivity range from ISO 200 to ISO 1600, which can be extended to ISO 200-6400. The corresponding ISO settings for the Sony Alpha A7 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

In terms of underlying technology, the D1 is build around a CCD sensor, while the A7 uses a CMOS 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 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 D1	APS-C	2.6	2000	1312	none	..	..	..	..
2.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
3.		Nikon D1H	APS-C	2.6	2000	1312	none	..	..	..	..
4.		Nikon D1X	APS-C	5.9	3008	1960	none	..	..	..	..
5.		Nikon D2X	APS-C	12.2	4288	2848	none	22.1	10.9	476	59
6.		Nikon D2Xs	APS-C	12.2	4288	2848	none	22.2	10.9	489	59
7.		Nikon D3	Full Frame	12.1	4256	2832	none	23.5	12.2	2290	81
8.		Nikon D3S	Full Frame	12.1	4256	2832	720/24p	23.5	12.0	3253	82
9.		Nikon D4	Full Frame	16.2	4928	3280	1080/30p	24.7	13.1	2965	89
10.		Nikon D200	APS-C	10.0	3872	2592	none	22.3	11.5	583	64
11.		Nikon D300	APS-C	12.2	4288	2848	none	22.1	12.0	679	67
12.		Nikon D300S	APS-C	12.2	4288	2848	720/24p	22.5	12.2	787	70
13.		Samsung NX1	APS-C	28.0	6480	4320	4K/30p	24.2	13.2	1363	83
14.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
15.		Sony A7C	Full Frame	24.0	6000	4000	4K/30p	25.0	14.7	3407	95
16.		Sony A7R	Full Frame	36.2	7360	4912	1080/60p	25.6	14.1	2746	95
17.		Sony A7S	Full Frame	12.0	4240	2832	1080/60p	23.9	13.2	3702	87

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A7 indeed provides for movie recording, while the D1 does not. The highest resolution format that the A7 can use is 1080/60p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A7 has an electronic viewfinder (2400k dots), while the D1 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 viewfinder in the A7 offers a wider field of view (100%) than the one in the D1 (96%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the A7 has a higher magnification (0.71x vs 0.53x), 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 Nikon D1 and Sony A7 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.		Nikon D1	optical	Y	2.0 / 120	fixed	n	1/16000s	4.5/s	n	n
2.		Sony A7	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	n
3.		Nikon D1H	optical	Y	2.0 / 120	fixed	n	1/16000s	5.0/s	n	n
4.		Nikon D1X	optical	Y	2.0 / 120	fixed	n	1/16000s	3.0/s	n	n
5.		Nikon D2X	optical	Y	2.5 / 235	fixed	n	1/8000s	5.0/s	n	n
6.		Nikon D2Xs	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	n	n
7.		Nikon D3	optical	Y	3.0 / 922	fixed	n	1/8000s	11.0/s	n	n
8.		Nikon D3S	optical	Y	3.0 / 921	fixed	n	1/8000s	11.0/s	n	n
9.		Nikon D4	optical	Y	3.2 / 921	fixed	n	1/8000s	11.0/s	n	n
10.		Nikon D200	optical	Y	2.5 / 230	fixed	n	1/8000s	5.0/s	Y	n
11.		Nikon D300	optical	Y	3.0 / 922	fixed	n	1/8000s	6.0/s	Y	n
12.		Nikon D300S	optical	Y	3.0 / 920	fixed	n	1/8000s	7.0/s	Y	n
13.		Samsung NX1	2360	Y	3.0 / 1036	tilting	Y	1/8000s	15.0/s	Y	n
14.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
15.		Sony A7C	2360	n	3.0 / 922	swivel	Y	1/4000s	10.0/s	n	Y
16.		Sony A7R	2400	n	3.0 / 1230	tilting	n	1/8000s	4.0/s	n	n
17.		Sony A7S	2400	n	3.0 / 921	tilting	n	1/8000s	5.0/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 D1, but is missing on the A7 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 D1 writes its imaging data to Compact Flash cards, while the A7 uses SDXC or Memory Stick PRO Duo 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 D1 and Sony Alpha A7 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 D1	Y	- / -	-	-	-	FW	-	-	-
2.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
3.		Nikon D1H	Y	- / -	-	-	-	FW	-	-	-
4.		Nikon D1X	Y	- / -	-	-	-	FW	-	-	-
5.		Nikon D2X	Y	- / -	-	-	-	2.0	-	-	-
6.		Nikon D2Xs	Y	- / -	-	-	-	2.0	-	-	-
7.		Nikon D3	Y	- / -	-	-	mini	2.0	-	-	-
8.		Nikon D3S	Y	stereo / -	-	-	mini	2.0	-	-	-
9.		Nikon D4	Y	mono / mono	Y	Y	micro	2.0	-	-	-
10.		Nikon D200	Y	- / -	-	-	-	2.0	-	-	-
11.		Nikon D300	Y	- / -	-	-	mini	2.0	-	-	-
12.		Nikon D300S	Y	stereo / mono	Y	-	mini	2.0	-	-	-
13.		Samsung NX1	Y	stereo / mono	Y	Y	micro	3.0	Y	Y	Y
14.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony A7C	Y	stereo / mono	Y	Y	micro	3.2	Y	Y	Y
16.		Sony A7R	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
17.		Sony A7S	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-

It is notable that the A7 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the D1 does not provide wifi capability.

Studio photographers will appreciate that the Nikon D1 (unlike the A7) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the D1 and the A7 have been discontinued, but can regularly be found used on ebay. The D1 was replaced by the Nikon D1X, while the A7 was followed by the Sony A7 II. Further information on the features and operation of the D1 and A7 can be found, respectively, in the Nikon D1 Manual (free pdf) or the online Sony A7 Manual.

Review summary

So how do things add up? Is the Nikon D1 better than the Sony A7 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Nikon D1:

• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• Faster shutter: Has higher mechanical shutter speed (1/16000s vs 1/8000s) to freeze action.
• More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• More heavily discounted: Has been available for much longer (launched in June 1999).

Reasons to prefer the Sony Alpha A7:

• More detail: Has more megapixels (24 vs 2.6MP), which boosts linear resolution by 201%.
• Better image quality: Is equipped with a larger and more technologically advanced sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Broader imaging potential: Can capture not only stills but also 1080/60p video.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More framing info: Has an electronic viewfinder that displays shooting data.
• More complete view: Has a viewfinder with a larger field of view (100% vs 96%).
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.71x vs 0.53x).
• Larger screen: Has a bigger rear LCD (3.0" vs 2.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (1230k vs 120k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• More compact: Is smaller (127x94mm vs 157x153mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 626g or 57 percent) and is thus easier to take along.
• Easier travel charging: Can be conveniently charged via its USB port.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced category (69 percent cheaper at launch).
• More modern: Reflects 14 years and 4 months of technical progress since the D1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7 is the clear winner of the contest (21 : 6 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 D1 and the Sony A7 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 D1 or the A7. 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 why hands-on reviews by experts 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	Street Price
1.		Nikon D1	..	..	..	+ +	..	..	Jun 1999	US$ 5 499	ebay.com
2.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	US$ 1 699	ebay.com
3.		Nikon D1H	..	..	..	+ +	..	..	Feb 2001	US$ 4 499	ebay.com
4.		Nikon D1X	..	..	..	+ +	..	..	Feb 2001	US$ 5 999	ebay.com
5.		Nikon D2X	..	..	..	+ +	..	..	Sep 2004	US$ 4 999	ebay.com
6.		Nikon D2Xs	..	..	..	..	..	..	Jun 2006	US$ 4 699	ebay.com
7.		Nikon D3	..	..	..	+ +	5/5	4.5/5	Aug 2007	US$ 4 999	ebay.com
8.		Nikon D3S	5/5	..	..	89/100	4.5/5	5/5	Oct 2009	US$ 5 199	ebay.com
9.		Nikon D4	..	..	..	..	4.5/5	4.5/5	Jan 2012	US$ 5 999	ebay.com
10.		Nikon D200	..	+ +	..	+ +	o	..	Nov 2005	US$ 1 699	ebay.com
11.		Nikon D300	..	+ +	..	+ +	5/5	4.5/5	Aug 2007	US$ 1 799	ebay.com
12.		Nikon D300S	5/5	+ +	..	82/100	4/5	4.5/5	Jul 2009	US$ 1 799	ebay.com
13.		Samsung NX1	5/5	..	..	87/100	5/5	5/5	Sep 2014	US$ 1 499	ebay.com
14.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	US$ 1 999	ebay.com
15.		Sony A7C	3.5/5	..	3.5/5	86/100	4/5	4/5	Sep 2020	US$ 1 799	amazon.com
16.		Sony A7R	5/5	+ +	..	82/100	4.5/5	5/5	Oct 2013	US$ 2 299	ebay.com
17.		Sony A7S	4/5	..	..	86/100	4.5/5	5/5	Apr 2014	US$ 2 499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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 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

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