Contax N Digital vs Sigma fp

The Contax N Digital and the Sigma fp are two digital cameras that were officially introduced, respectively, in February 2002 and July 2019. The N Digital is a DSLR, while the fp is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The Contax has a resolution of 6.1 megapixels, whereas the Sigma provides 24 MP.

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

Headline Specifications

Contax N Digital		Sigma fp
Digital single lens reflex		Mirrorless system camera
Contax N mount lenses		Leica L mount lenses
6.1 MP – Full Frame sensor		24 MP – Full Frame sensor
no Video		4K/30p Video
ISO 50-1,600		ISO 100-25,600 (6 - 102,400)
Optical viewfinder		Viewfinder optional
2.0" LCD – 200k dots		3.2" LCD – 2100k dots
Fixed screen (not touch-sensitive)		Fixed touchscreen
4 shutter flaps per second		12 shutter flaps per second
not weather sealed		Weathersealed body
100 shots per battery charge		280 shots per battery charge
152 x 138 x 80 mm, 990 g		113 x 70 x 45 mm, 422 g

Check N Digital offers at
ebay.com
Check fp price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Contax N Digital and the Sigma fp? 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 Contax N Digital and the Sigma fp 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 measures 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 Sigma fp is considerably smaller (62 percent) than the Contax N Digital. Moreover, the fp is substantially lighter (57 percent) than the N Digital. It is noteworthy in this context that the fp is splash and dust-proof, while the N Digital 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. 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.

As can be seen in the images above, the N Digital has a battery grip built in. This facilitates image-taking in portrait orientation and gives it additional battery power. The power pack in the fp can be charged via the USB port, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 (USD)	Street Price
1.		Contax N Digital	152 mm	138 mm	80 mm	990 g	100	n	Feb 2002	7,399	ebay.com
2.		Sigma fp	113 mm	70 mm	45 mm	422 g	280	Y	Jul 2019	1,899	amazon.com
3.		Canon XC10	125 mm	102 mm	122 mm	1040 g	370	n	Apr 2015	2,499	ebay.com
4.		Canon 10D	150 mm	107 mm	75 mm	850 g	500	n	Feb 2003	1,999	ebay.com
5.		Canon 300D	142 mm	99 mm	72 mm	649 g	400	n	Aug 2003	899	ebay.com
6.		Canon D60	150 mm	107 mm	75 mm	855 g	620	n	Feb 2002	2,999	ebay.com
7.		Fujifilm X-Pro2	141 mm	83 mm	46 mm	495 g	350	Y	Jan 2016	1,699	ebay.com
8.		Fujifilm X-T2	133 mm	92 mm	49 mm	507 g	340	Y	Jul 2016	1,599	ebay.com
9.		Leica M10	139 mm	80 mm	39 mm	660 g	210	Y	Jan 2017	6,595	ebay.com
10.		Leica SL	147 mm	104 mm	39 mm	847 g	400	Y	Oct 2015	7,450	ebay.com
11.		Leica M9	139 mm	80 mm	37 mm	585 g	550	n	Sep 2009	7,999	ebay.com
12.		Nikon D100	144 mm	116 mm	81 mm	780 g	370	n	Feb 2002	1,999	ebay.com
13.		Nikon D1X	157 mm	153 mm	85 mm	1100 g	1200	Y	Feb 2001	5,999	ebay.com
14.		Panasonic S1	149 mm	110 mm	97 mm	1017 g	400	Y	Feb 2019	2,499	amazon.com
15.		Panasonic FT7	117 mm	76 mm	37 mm	319 g	300	Y	May 2018	449	ebay.com
16.		Panasonic FZ1000	137 mm	99 mm	131 mm	831 g	360	n	Jun 2014	899	ebay.com
17.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	1,699	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 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 fp was launched at a markedly lower price (by 74 percent) than the N Digital, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the fp is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a slightly smaller sensor, the fp offers a higher resolution of 24 megapixels, compared with 6.1 MP of the N Digital. 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 5.98μm versus 11.90μm for the N Digital). However, it should be noted that the fp is much more recent (by 17 years and 4 months) than the N Digital, 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 fp has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sigma fp implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the fp 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 Contax N Digital are 15.2 x 10 inches or 38.6 x 25.5 cm for good quality, 12.2 x 8 inches or 30.9 x 20.4 cm for very good quality, and 10.1 x 6.7 inches or 25.7 x 17 cm for excellent quality prints.

The Contax N Digital has a native sensitivity range from ISO 50 to ISO 1600. The corresponding ISO settings for the Sigma fp are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.

In terms of underlying technology, the N Digital is build around a CCD sensor, while the fp uses a BSI-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.

For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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.		Contax N Digital	Full Frame	6.1	3040	2008	none	21.5	10.5	1283	59
2.		Sigma fp	Full Frame	24.0	6000	4000	4K/30p	25.2	14.2	2829	94
3.		Canon XC10	1-inch	12.0	4000	3000	4K/30p	21.7	11.8	197	61
4.		Canon 10D	APS-C	6.3	3072	2048	none	21.1	10.9	571	57
5.		Canon 300D	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
6.		Canon D60	APS-C	6.3	3072	2048	none	20.3	9.8	301	47
7.		Fujifilm X-Pro2	APS-C	24.0	6000	4000	1080/60p	23.7	13.0	1608	80
8.		Fujifilm X-T2	APS-C	24.0	6000	4000	4K/30p	23.8	13.1	1653	81
9.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
10.		Leica SL	Full Frame	24.0	6000	4000	4K/30p	25.0	13.4	1821	88
11.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
12.		Nikon D100	APS-C	6.0	3008	2000	none	20.4	9.9	394	48
13.		Nikon D1X	APS-C	5.9	3008	1960	none	..	..	..	..
14.		Panasonic S1	Full Frame	24.0	6000	4000	4K/60p	25.2	14.5	3333	95
15.		Panasonic FT7	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1028	51
16.		Panasonic FZ1000	1-inch	20.0	5472	3648	4K/30p	22.1	11.7	517	64
17.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
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 fp indeed provides for movie recording, while the N Digital does not. The highest resolution format that the fp 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 N Digital has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the fp relies on live view and the rear LCD for framing. That said, the fp can be equipped with an optional viewfinder – the EVF-11. The table below summarizes some of the other core capabilities of the Contax N Digital and Sigma fp 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.		Contax N Digital	optical	Y	2.0 / 200	fixed	n	1/8000s	4.0/s	n	n
2.		Sigma fp	optional	n	3.2 / 2100	fixed	Y	1/8000s	12.0/s	n	n
3.		Canon XC10	none	n	3.0 / 1030	tilting	Y	1/2000s	3.8/s	n	Y
4.		Canon 10D	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
5.		Canon 300D	optical	n	1.8 / 118	fixed	n	1/4000s	2.5/s	Y	n
6.		Canon D60	optical	Y	1.8 / 114	fixed	n	1/4000s	3.0/s	Y	n
7.		Fujifilm X-Pro2	2360	n	3.0 / 1620	fixed	n	1/8000s	8.0/s	n	n
8.		Fujifilm X-T2	2360	n	3.0 / 1040	full-flex	n	1/8000s	8.0/s	n	n
9.		Leica M10	optical	n	3.0 / 1037	fixed	n	1/4000s	5.0/s	n	n
10.		Leica SL	4400	Y	3.0 / 1040	fixed	Y	1/8000s	11.0/s	n	n
11.		Leica M9	optical	n	2.5 / 230	fixed	n	1/4000s	2.0/s	n	n
12.		Nikon D100	optical	Y	1.8 / 118	fixed	n	1/4000s	3.0/s	Y	n
13.		Nikon D1X	optical	Y	2.0 / 120	fixed	n	1/16000s	3.0/s	n	n
14.		Panasonic S1	5760	Y	3.2 / 2100	full-flex	Y	1/8000s	9.0/s	n	Y
15.		Panasonic FT7	1170	n	3.0 / 1040	fixed	n	1/1300s	10.0/s	Y	Y
16.		Panasonic FZ1000	2359	n	3.0 / 921	swivel	n	1/4000s	12.0/s	Y	Y
17.		Sony A7	2400	n	3.0 / 1230	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 N Digital, but is missing on the fp 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 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 fp 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 Sigma fp 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 N Digital writes its imaging data to Compact Flash cards, while the fp uses SDXC 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 Contax N Digital and Sigma fp 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.		Contax N Digital	Y	- / -	-	-	-	FW	-	-	-
2.		Sigma fp	Y	stereo / mono	Y	-	micro	3.1	-	-	-
3.		Canon XC10	Y	stereo / mono	Y	Y	mini	2.0	Y	Y	-
4.		Canon 10D	Y	- / -	-	-	-	1.1	-	-	-
5.		Canon 300D	Y	- / -	-	-	-	1.1	-	-	-
6.		Canon D60	Y	- / -	-	-	-	1.1	-	-	-
7.		Fujifilm X-Pro2	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X-T2	Y	stereo / mono	Y	-	micro	3.0	Y	-	-
9.		Leica M10	Y	- / -	-	-	-	-	Y	-	-
10.		Leica SL	Y	stereo / mono	Y	Y	full	3.0	Y	-	-
11.		Leica M9	Y	- / -	-	-	-	2.0	-	-	-
12.		Nikon D100	Y	- / -	-	-	-	1.1	-	-	-
13.		Nikon D1X	Y	- / -	-	-	-	FW	-	-	-
14.		Panasonic S1	Y	stereo / mono	Y	Y	full	3.1	Y	-	Y
15.		Panasonic FT7	-	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Panasonic FZ1000	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-
17.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-

Studio photographers will appreciate that the Contax N Digital (unlike the fp) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The fp is a recent model that features in the current product line-up of Sigma. In contrast, the N Digital has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the N Digital from Contax. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Contax and Sigma websites.

Review summary

So what conclusions can be drawn? Is the Contax N Digital better than the Sigma fp or vice versa? The listing below highlights the relative strengths of the two models.

Advantages of the Contax N Digital:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Easier framing: Has an optical viewfinder for image composition and settings control.
• Easier setting verification: Features an LCD display on top to control shooting parameters.
• 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 February 2002).

Reasons to prefer the Sigma fp:

• More detail: Has more megapixels (24 vs 6.1MP), which boosts linear resolution by 98%.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Broader imaging potential: Can capture not only stills but also 4K/30p video.
• Larger screen: Has a bigger rear LCD (3.2" vs 2.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (2100k vs 200k dots).
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• Faster burst: Shoots at higher frequency (12 vs 4 flaps/sec) to capture the decisive moment.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (113x70mm vs 152x138mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 568g or 57 percent) and is thus easier to take along.
• Longer lasting: Gets more shots (280 versus 100) out of a single battery charge.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• More affordable: Was introduced into a lower priced category (74 percent cheaper at launch).
• More modern: Reflects 17 years and 4 months of technical progress since the N Digital launch.

If the number of relative strengths (bullet points above) is taken as a guide, the fp is the clear winner of the contest (17 : 6 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 Contax N Digital and the Sigma fp 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the N Digital or the fp perform in practice. 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 following table reports the overall ratings of the cameras as published by some of the major 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.		Contax N Digital	..	..	..	..	..	..	Feb 2002	7,399	ebay.com
2.		Sigma fp	4/5	..	4/5	..	4/5	4.5/5	Jul 2019	1,899	amazon.com
3.		Canon XC10	..	..	..	80/100	..	..	Apr 2015	2,499	ebay.com
4.		Canon 10D	..	..	..	+ +	..	..	Feb 2003	1,999	ebay.com
5.		Canon 300D	..	..	..	+ +	..	..	Aug 2003	899	ebay.com
6.		Canon D60	..	..	..	+ +	o	..	Feb 2002	2,999	ebay.com
7.		Fujifilm X-Pro2	..	+	..	83/100	4.5/5	4.5/5	Jan 2016	1,699	ebay.com
8.		Fujifilm X-T2	5/5	+ +	..	86/100	4.5/5	5/5	Jul 2016	1,599	ebay.com
9.		Leica M10	4.5/5	..	..	..	4/5	4.5/5	Jan 2017	6,595	ebay.com
10.		Leica SL	4/5	..	4/5	84/100	4.5/5	4/5	Oct 2015	7,450	ebay.com
11.		Leica M9	..	..	..	..	4.5/5	..	Sep 2009	7,999	ebay.com
12.		Nikon D100	..	..	..	+ +	o	..	Feb 2002	1,999	ebay.com
13.		Nikon D1X	..	..	..	+ +	..	..	Feb 2001	5,999	ebay.com
14.		Panasonic S1	4.5/5	+ +	4.5/5	88/100	4.5/5	4/5	Feb 2019	2,499	amazon.com
15.		Panasonic FT7	..	+	..	..	3.5/5	3.5/5	May 2018	449	ebay.com
16.		Panasonic FZ1000	4/5	+ +	..	82/100	4.5/5	4.5/5	Jun 2014	899	ebay.com
17.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	1,699	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Check N Digital offers at
ebay.com
Check fp price at
amazon.com

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 use the search menu 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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