Nikon L840 vs Olympus TG-4

The Nikon Coolpix L840 and the Olympus Tough TG-4 are two digital cameras that were announced, respectively, in February 2015 and April 2015. Both the L840 and the TG-4 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. Both cameras offer a resolution of 15.9 megapixels.

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

Headline Specifications

Nikon L840		Olympus TG-4
Fixed lens compact camera		Fixed lens compact camera
22.5-855mm f/3.0-6.5		25-100mm f/2.0-4.9
15.9 MP – 1/2.3" sensor		15.9 MP – 1/2.3" sensor
1080/60i Video		1080/30p Video
ISO 100-6,400		ISO 100-6,400
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 921k dots		3.0" LCD – 460k dots
Tilting screen (no touchscreen)		Fixed screen (not touch-sensitive)
7.4 shutter flaps per second		5 shutter flaps per second
Lens-based stabilization		In-body stabilization
not weather sealed		Waterproof body (15m)
590 shots per battery charge		380 shots per battery charge
113 x 78 x 96 mm, 538 g		112 x 66 x 31 mm, 247 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Nikon Coolpix L840 and the Olympus Tough TG-4? 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 L840 and the Olympus TG-4. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

Both cameras are available in two different colors (black, red).

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus TG-4 is notably smaller (16 percent) than the Nikon L840. Moreover, the TG-4 is substantially lighter (54 percent) than the L840. It is noteworthy in this context that the TG-4 is splash and dust-proof, while the L840 does not feature any corresponding weather-sealing. More than that, the TG-4 is water-proof up to 15m and can, thus, be used for underwater photography.

The power pack in the TG-4 can be charged via the USB port, which can be very convenient when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Nikon L840	113 mm	78 mm	96 mm	538 g	590	n	Feb 2015	US$ 299	ebay.com
2.		Olympus TG-4	112 mm	66 mm	31 mm	247 g	380	Y	Apr 2015	US$ 379	ebay.com
3.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	US$ 549	ebay.com
4.		Canon SX520	120 mm	82 mm	92 mm	441 g	210	n	Jul 2014	US$ 399	ebay.com
5.		Canon SX530	120 mm	82 mm	92 mm	442 g	210	n	Jan 2015	US$ 429	ebay.com
6.		Fujifilm XP130	110 mm	71 mm	28 mm	207 g	240	Y	Jan 2018	US$ 229	ebay.com
7.		Leica X Typ 113	133 mm	73 mm	78 mm	486 g	350	n	Sep 2014	US$ 2 299	ebay.com
8.		Nikon B500	114 mm	78 mm	95 mm	541 g	600	n	Jan 2016	US$ 299	ebay.com
9.		Nikon B600	122 mm	82 mm	99 mm	500 g	280	n	Jan 2019	US$ 349	ebay.com
10.		Nikon B700	125 mm	85 mm	107 mm	565 g	350	n	Feb 2016	US$ 499	ebay.com
11.		Nikon P900	140 mm	103 mm	137 mm	899 g	360	n	Mar 2015	US$ 599	ebay.com
12.		Nikon W300	112 mm	66 mm	29 mm	231 g	280	Y	May 2017	US$ 389	ebay.com
13.		Olympus E-M5 II	124 mm	85 mm	45 mm	469 g	310	Y	Feb 2015	US$ 1 099	ebay.com
14.		Olympus TG-5	113 mm	66 mm	32 mm	250 g	340	Y	May 2017	US$ 449	ebay.com
15.		Olympus TG-6	113 mm	66 mm	32 mm	253 g	340	Y	May 2019	US$ 449	ebay.com
16.		Sony H400	130 mm	95 mm	122 mm	628 g	300	n	Feb 2014	US$ 319	ebay.com
17.		Sony HX80	102 mm	58 mm	36 mm	245 g	390	n	Mar 2016	US$ 349	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 L840 was launched at a somewhat lower price (by 21 percent) than the TG-4, which makes it more attractive for photographers on a tight budget. 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.

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. 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 1/2.3-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 5.6. Within the spectrum of camera sensors, this places the review cameras among the smaller-sensor digicams that favor affordability and compact design. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.9 megapixels. This similarity in sensor specs implies that both the L840 and the TG-4 have the same pixel density, as well as the same pixel size. Moreover, 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 L840 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The Nikon Coolpix L840 has a native sensitivity range from ISO 100 to ISO 6400. The Olympus Tough TG-4 offers exactly the same ISO settings.

In terms of underlying technology, the L840 is build around a CMOS sensor, while the TG-4 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.

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"). 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 L840	1/2.3	15.9	4608	3456	1080/60i	20.2	11.6	721	47
2.		Olympus TG-4	1/2.3	15.9	4608	3456	1080/30p	20.2	11.6	737	47
3.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
4.		Canon SX520	1/2.3	15.9	4608	3456	1080/30p	20.1	11.5	672	46
5.		Canon SX530	1/2.3	15.9	4608	3456	1080/30p	20.2	11.6	712	47
6.		Fujifilm XP130	1/2.3	15.9	4608	3456	1080/60p	20.6	12.1	1000	51
7.		Leica X Typ 113	APS-C	16.1	4928	3264	1080/30p	23.6	12.8	1491	78
8.		Nikon B500	1/2.3	15.9	4608	3456	1080/60i	20.3	11.7	810	48
9.		Nikon B600	1/2.3	15.9	4608	3456	1080/30p	20.7	12.2	1095	52
10.		Nikon B700	1/2.3	20.2	5184	3888	4K/30p	20.4	11.8	818	48
11.		Nikon P900	1/2.3	15.9	4608	3456	1080/60p	20.2	11.6	727	47
12.		Nikon W300	1/2.3	15.9	4608	3456	4K/30p	20.5	12.0	938	50
13.		Olympus E-M5 II	Four Thirds	15.9	4608	3456	1080/60p	23.0	12.5	842	73
14.		Olympus TG-5	1/2.3	12.0	4000	3000	4K/30p	20.5	11.9	934	50
15.		Olympus TG-6	1/2.3	12.0	4000	3000	4K/30p	20.7	12.2	1127	52
16.		Sony H400	1/2.3	19.9	5152	3864	720/30p	20.1	11.4	630	45
17.		Sony HX80	1/2.3	18.0	4896	3672	1080/60p	20.4	11.8	822	48
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 L840 provides a higher frame rate than the TG-4. It can shoot video footage at 1080/60i, while the Olympus is limited to 1080/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The L840 and the TG-4 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The table below summarizes some of the other core capabilities of the Nikon L840 and Olympus TG-4 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 L840	none	n	3.0 / 921	tilting	n	1/4000s	7.4/s	Y	Y
2.		Olympus TG-4	none	n	3.0 / 460	fixed	n	1/2000s	5.0/s	Y	Y
3.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
4.		Canon SX520	none	n	3.0 / 461	fixed	n	1/2000s	1.6/s	Y	Y
5.		Canon SX530	none	n	3.0 / 461	fixed	n	1/2000s	1.6/s	Y	Y
6.		Fujifilm XP130	none	n	3.0 / 920	fixed	n	1/2000s	10.0/s	Y	Y
7.		Leica X Typ 113	optional	n	3.0 / 920	fixed	n	1/2000s	5.0/s	Y	n
8.		Nikon B500	none	n	3.0 / 921	tilting	n	1/4000s	7.4/s	Y	Y
9.		Nikon B600	none	n	3.0 / 921	fixed	n	1/4000s	7.4/s	Y	Y
10.		Nikon B700	921	n	3.0 / 921	swivel	n	1/4000s	5.0/s	Y	Y
11.		Nikon P900	921	n	3.0 / 921	swivel	n	1/4000s	7.0/s	Y	Y
12.		Nikon W300	none	n	3.0 / 921	fixed	n	1/4000s	7.0/s	Y	Y
13.		Olympus E-M5 II	2360	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
14.		Olympus TG-5	none	n	3.0 / 460	fixed	n	1/2000s	20.0/s	Y	Y
15.		Olympus TG-6	none	n	3.0 / 1040	fixed	n	1/2000s	20.0/s	Y	Y
16.		Sony H400	210	n	3.0 / 460	fixed	n	1/2000s	0.7/s	Y	Y
17.		Sony HX80	638	n	3.0 / 922	tilting	n	1/2000s	10.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The Olympus TG-4 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.

Both the L840 and the TG-4 have zoom lenses built in. The L840 has a 22.5-855mm f/3.0-6.5 optic and the TG-4 offers a 25-100mm f/2.0-4.9 (focal lengths in full frame equivalent terms). Hence, the Nikon provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the Olympus. The TG-4 offers the faster maximum aperture.

Concerning the storage of imaging data, both the L840 and the TG-4 write their files to SDXC cards. The TG-4 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the L840 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 Coolpix L840 and Olympus Tough TG-4 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 L840	-	stereo / mono	-	-	micro	2.0	Y	Y	-
2.		Olympus TG-4	-	stereo / mono	-	-	micro	2.0	Y	-	-
3.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
4.		Canon SX520	-	stereo / mono	-	-	mini	2.0	-	-	-
5.		Canon SX530	-	stereo / mono	-	-	mini	2.0	Y	Y	-
6.		Fujifilm XP130	-	mono / mono	-	-	micro	2.0	Y	-	Y
7.		Leica X Typ 113	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Nikon B500	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
9.		Nikon B600	-	stereo / mono	-	-	micro	2.0	Y	-	Y
10.		Nikon B700	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
11.		Nikon P900	-	stereo / mono	-	-	micro	2.0	Y	Y	-
12.		Nikon W300	-	stereo / mono	-	-	micro	2.0	Y	-	Y
13.		Olympus E-M5 II	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
14.		Olympus TG-5	-	stereo / mono	-	-	micro	2.0	Y	-	-
15.		Olympus TG-6	-	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Sony H400	-	mono / mono	-	-	micro	2.0	Y	-	-
17.		Sony HX80	-	stereo / mono	-	-	micro	2.0	Y	Y	-

Travel and landscape photographers will find it useful that the TG-4 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the L840 and the TG-4 have been discontinued, but can regularly be found used on ebay. The L840 was replaced by the Nikon B500, while the TG-4 was followed by the Olympus TG-5. Further information on the features and operation of the L840 and TG-4 can be found, respectively, in the Nikon L840 Manual (free pdf) or the online Olympus TG-4 Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Nikon L840 and the Olympus TG-4? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Nikon Coolpix L840:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better video: Provides higher movie framerates (1080/60i versus 1080/30p).
• More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• Faster burst: Shoots at higher frequency (7.4 vs 5 flaps/sec) to capture the decisive moment.
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Longer lasting: Can take more shots (590 versus 380) on a single battery charge.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced segment (21 percent cheaper at launch).

Reasons to prefer the Olympus Tough TG-4:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Better light gathering: Has a lens with a wider maximum aperture (f/2.0 vs f/3.0).
• More compact: Is smaller (112x66mm vs 113x78mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 291g or 54 percent) and is thus easier to take along.
• Easier travel charging: Can be conveniently charged via its USB port.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
• Easier geotagging: Features an internal GPS sensor to log localization data.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.

If the count of relative strengths (bullet points above) is taken as a measure, the L840 comes out slightly ahead of the TG-4 (11 : 10 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 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 L840 and the Olympus TG-4 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Travel-Zoom Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the L840 or the TG-4 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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 L840	..	+ +	..	..	3.5/5	4/5	Feb 2015	US$ 299	ebay.com
2.		Olympus TG-4	..	+	..	79/100	4/5	4/5	Apr 2015	US$ 379	ebay.com
3.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	US$ 549	ebay.com
4.		Canon SX520	..	+	..	..	3.5/5	3.5/5	Jul 2014	US$ 399	ebay.com
5.		Canon SX530	..	+ +	..	..	4/5	4/5	Jan 2015	US$ 429	ebay.com
6.		Fujifilm XP130	..	o	..	..	3.5/5	4/5	Jan 2018	US$ 229	ebay.com
7.		Leica X Typ 113	3.5/5	..	..	..	3.5/5	4/5	Sep 2014	US$ 2 299	ebay.com
8.		Nikon B500	..	+	..	..	4/5	3.5/5	Jan 2016	US$ 299	ebay.com
9.		Nikon B600	..	+	..	..	3.5/5	3/5	Jan 2019	US$ 349	ebay.com
10.		Nikon B700	..	+	..	..	4/5	4/5	Feb 2016	US$ 499	ebay.com
11.		Nikon P900	..	..	..	77/100	4/5	4/5	Mar 2015	US$ 599	ebay.com
12.		Nikon W300	..	+	..	..	4/5	4/5	May 2017	US$ 389	ebay.com
13.		Olympus E-M5 II	5/5	+ +	4.5/5	81/100	5/5	5/5	Feb 2015	US$ 1 099	ebay.com
14.		Olympus TG-5	..	+ +	4.5/5	..	4/5	4/5	May 2017	US$ 449	ebay.com
15.		Olympus TG-6	4/5	+ +	4.5/5	76/100	4/5	4/5	May 2019	US$ 449	ebay.com
16.		Sony H400	..	o	..	..	3.5/5	3.5/5	Feb 2014	US$ 319	ebay.com
17.		Sony HX80	..	..	..	..	..	..	Mar 2016	US$ 349	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. A score, therefore, has to be seen in close connection to the price and market introduction time 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. 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

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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