OM System TG-7 vs Sigma fp L

The OM System Tough TG-7 and the Sigma fp L are two digital cameras that were revealed to the public, respectively, in September 2023 and March 2021. The TG-7 is a fixed lens compact, while the fp L is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (TG-7) and a full frame (fp L) sensor. The OM System has a resolution of 12 megapixels, whereas the Sigma provides 60.2 MP.

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

Headline Specifications

OM System TG-7		Sigma fp L
Fixed lens compact camera		Mirrorless system camera
25-100mm f/2.0-4.9		Leica L mount lenses
12 MP – 1/2.3" sensor		60.2 MP – Full Frame sensor
4K/30p Video		4K/30p Video
ISO 100-12,800		ISO 100-25,600 (6 - 102,400)
No viewfinder, LCD framing		Viewfinder optional
3.0" LCD – 1040k dots		3.2" LCD – 2100k dots
Fixed screen (not touch-sensitive)		Fixed touchscreen
20 shutter flaps per second		10 shutter flaps per second
In-body stabilization		Lens stabilization only
Waterproof body (15m)		Weathersealed body
330 shots per battery charge		240 shots per battery charge
114 x 66 x 33 mm, 249 g		113 x 70 x 45 mm, 427 g

Check TG-7 price at
amazon.com
Check fp L price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the OM System Tough TG-7 and the Sigma fp L? 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 OM System TG-7 and the Sigma fp L are illustrated in the side-by-side display below. 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 dimensions are rounded to the nearest millimeter.

The TG-7 can be obtained in two different colors (black, red), while the fp L 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 Sigma fp L is notably larger (5 percent) than the OM System TG-7. 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. More than that, the TG-7 is water-proof up to 15m and can, thus, be used for underwater photography.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TG-7 has a lens built in, whereas the fp L is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the TG-7 gets 330 shots out of its OM System LI-92B battery, while the fp L can take 240 images on a single charge of its Sigma BP-51 power pack. The battery packs of both cameras can be charged via USB, 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 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.		OM System TG-7	114 mm	66 mm	33 mm	249 g	330	Y	Sep 2023	US$ 549	amazon.com
2.		Sigma fp L	113 mm	70 mm	45 mm	427 g	240	Y	Mar 2021	US$ 2 499	amazon.com
3.		Fujifilm XP130	110 mm	71 mm	28 mm	207 g	240	Y	Jan 2018	US$ 229	ebay.com
4.		Fujifilm XP140	110 mm	71 mm	28 mm	207 g	240	Y	Feb 2019	US$ 229	ebay.com
5.		Leica M11	139 mm	80 mm	39 mm	640 g	700	Y	Jan 2022	US$ 8 999	amazon.com
6.		Nikon D780	144 mm	116 mm	76 mm	840 g	2260	Y	Jan 2020	US$ 2 299	amazon.com
7.		Nikon W300	112 mm	66 mm	29 mm	231 g	280	Y	May 2017	US$ 389	ebay.com
8.		Olympus E-PM1	110 mm	64 mm	34 mm	265 g	330	n	Jun 2011	US$ 499	ebay.com
9.		Olympus TG-4	112 mm	66 mm	31 mm	247 g	380	Y	Apr 2015	US$ 379	ebay.com
10.		Olympus TG-5	113 mm	66 mm	32 mm	250 g	340	Y	May 2017	US$ 449	ebay.com
11.		Olympus TG-6	113 mm	66 mm	32 mm	253 g	340	Y	May 2019	US$ 449	ebay.com
12.		Olympus XZ-1	111 mm	65 mm	42 mm	275 g	320	n	Jan 2011	US$ 499	ebay.com
13.		Olympus XZ-2	113 mm	65 mm	48 mm	346 g	340	n	Sep 2012	US$ 599	ebay.com
14.		Panasonic FZ300	132 mm	92 mm	117 mm	691 g	380	Y	Jul 2015	US$ 599	amazon.com
15.		Sigma fp	113 mm	70 mm	45 mm	422 g	280	Y	Jul 2019	US$ 1 899	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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The TG-7 was launched at a lower price than the fp L, despite having a lens built in. 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 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the OM System TG-7 features a 1/2.3-inch sensor and the Sigma fp L a full frame sensor. The sensor area in the fp L is 2986 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.0. The sensor in the TG-7 has a native 4:3 aspect ratio, while the one in the fp L offers a 3:2 aspect.

With 60.2MP, the fp L offers a higher resolution than the TG-7 (12MP), but the fp L nevertheless has larger individual pixels (pixel pitch of 3.79μm versus 1.53μm for the TG-7) due to its larger sensor. However, the TG-7 is a much more recent model (by 2 years and 5 months) than the fp L, 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 Sigma fp L implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the fp L for good quality output (200 dots per inch) amounts to 47.6 x 31.6 inches or 120.9 x 80.4 cm, for very good quality (250 dpi) 38.1 x 25.3 inches or 96.7 x 64.3 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.6 x 53.6 cm. The corresponding values for the OM System TG-7 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The OM System Tough TG-7 has a native sensitivity range from ISO 100 to ISO 12800. The corresponding ISO settings for the Sigma fp L are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.

Technology-wise, both cameras are equipped with BSI-CMOS (Backside Illuminated 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.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		OM System TG-7	1/2.3	12.0	4000	3000	4K/30p	20.9	12.7	1553	54
2.		Sigma fp L	Full Frame	60.2	9520	6328	4K/30p	25.3	14.4	3001	96
3.		Fujifilm XP130	1/2.3	15.9	4608	3456	1080/60p	20.6	12.1	1000	51
4.		Fujifilm XP140	1/2.3	15.9	4608	3456	4K/15p	20.7	12.2	1102	52
5.		Leica M11	Full Frame	60.3	9528	6328	none	26.3	14.8	3376	100
6.		Nikon D780	Full Frame	24.3	6048	4024	4K/30p	25.3	14.3	2877	95
7.		Nikon W300	1/2.3	15.9	4608	3456	4K/30p	20.5	12.0	938	50
8.		Olympus E-PM1	Four Thirds	12.2	4032	3024	1080/60i	21.0	10.3	499	52
9.		Olympus TG-4	1/2.3	15.9	4608	3456	1080/30p	20.2	11.6	737	47
10.		Olympus TG-5	1/2.3	12.0	4000	3000	4K/30p	20.5	11.9	934	50
11.		Olympus TG-6	1/2.3	12.0	4000	3000	4K/30p	20.7	12.2	1127	52
12.		Olympus XZ-1	1/1.7	10.1	3664	2752	720/30p	18.8	10.4	117	34
13.		Olympus XZ-2	1/1.7	11.8	3968	2976	1080/30p	20.4	11.3	216	49
14.		Panasonic FZ300	1/2.3	12.0	4000	3000	4K/30p	19.3	11.0	97	38
15.		Sigma fp	Full Frame	24.0	6000	4000	4K/30p	25.2	14.2	2829	94
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
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, and both provide the same movie specifications (4K/30p).

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. The TG-7 and the fp L 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. That said, the fp L can be equipped with an optional viewfinder – the EVF-11. The adjacent table lists some of the other core features of the OM System TG-7 and Sigma fp L 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.		OM System TG-7	none	n	3.0 / 1040	fixed	n	1/2000s	20.0/s	Y	Y
2.		Sigma fp L	optional	n	3.2 / 2100	fixed	Y	1/8000s	10.0/s	n	n
3.		Fujifilm XP130	none	n	3.0 / 920	fixed	n	1/2000s	10.0/s	Y	Y
4.		Fujifilm XP140	none	n	3.0 / 920	fixed	n	1/2000s	10.0/s	Y	Y
5.		Leica M11	optical	n	3.0 / 2333	fixed	Y	1/4000s	4.5/s	n	n
6.		Nikon D780	optical	Y	3.2 / 2359	tilting	Y	1/8000s	12.0/s	n	n
7.		Nikon W300	none	n	3.0 / 921	fixed	n	1/4000s	7.0/s	Y	Y
8.		Olympus E-PM1	optional	n	3.0 / 460	fixed	n	1/4000s	5.5/s	n	Y
9.		Olympus TG-4	none	n	3.0 / 460	fixed	n	1/2000s	5.0/s	Y	Y
10.		Olympus TG-5	none	n	3.0 / 460	fixed	n	1/2000s	20.0/s	Y	Y
11.		Olympus TG-6	none	n	3.0 / 1040	fixed	n	1/2000s	20.0/s	Y	Y
12.		Olympus XZ-1	optional	n	3.0 / 614	fixed	n	1/2000s	2.0/s	Y	Y
13.		Olympus XZ-2	optional	n	3.0 / 920	tilting	Y	1/2000s	5.0/s	Y	Y
14.		Panasonic FZ300	1440	n	3.0 / 1040	swivel	Y	1/4000s	12.0/s	Y	Y
15.		Sigma fp	optional	n	3.2 / 2100	fixed	Y	1/8000s	12.0/s	n	n
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 difference between the cameras concerns the presence of an on-board flash. The TG-7 has one, while the fp L does not. While the built-in flash of the TG-7 is not very powerful, it can at times be useful as a fill-in light.

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 L 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 OM System TG-7 and the Sigma fp L both have 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.

Concerning the storage of imaging data, both the TG-7 and the fp L write their files to SDXC cards. The fp L supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the TG-7 can use UHS-I cards (up to 104 MB/s).

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 OM System Tough TG-7 and Sigma fp L 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.		OM System TG-7	-	stereo / mono	-	-	micro	2.0	Y	-	-
2.		Sigma fp L	Y	stereo / mono	Y	Y	micro	3.2	Y	-	-
3.		Fujifilm XP130	-	mono / mono	-	-	micro	2.0	Y	-	Y
4.		Fujifilm XP140	-	mono / mono	-	-	micro	2.0	Y	-	Y
5.		Leica M11	Y	- / -	-	-	-	3.2	Y	-	Y
6.		Nikon D780	Y	stereo / mono	Y	Y	mini	3.1	Y	-	Y
7.		Nikon W300	-	stereo / mono	-	-	micro	2.0	Y	-	Y
8.		Olympus E-PM1	Y	stereo / mono	-	-	mini	2.0	-	-	-
9.		Olympus TG-4	-	stereo / mono	-	-	micro	2.0	Y	-	-
10.		Olympus TG-5	-	stereo / mono	-	-	micro	2.0	Y	-	-
11.		Olympus TG-6	-	stereo / mono	-	-	micro	2.0	Y	-	-
12.		Olympus XZ-1	Y	mono / -	-	-	mini	2.0	-	-	-
13.		Olympus XZ-2	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Panasonic FZ300	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
15.		Sigma fp	Y	stereo / mono	Y	-	micro	3.1	-	-	-
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 fp L has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The TG-7 does not feature such a mic input.

Travel and landscape photographers will find it useful that the TG-7 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the TG-7 and the fp L are recent models that are part of the current product line-up. The TG-7 replaced the earlier Olympus TG-6, while the fp L does not have a direct predecessor. Further information on the features and operation of the TG-7 and fp L can be found, respectively, in the OM System TG-7 Manual (free pdf) or the online Sigma fp L Manual.

Review summary

So how do things add up? Is there a clear favorite between the OM System TG-7 and the Sigma fp L? Which camera is better? The listing below highlights the relative strengths of the two models.

Arguments in favor of the OM System Tough TG-7:

• Faster burst: Shoots at higher frequency (20 vs 10 flaps/sec) to capture the decisive moment.
• Ready to shoot: Has a lens built-in, whereas the fp L requires a separate lens.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the fp L).
• Longer lasting: Can take more shots (330 versus 240) on a single battery charge.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 15m).
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Easier geotagging: Features an internal GPS sensor to log localization data.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 2 years and 5 months of technical progress since the fp L launch.

Advantages of the Sigma fp L:

• More detail: Has more megapixels (60.2 vs 12MP), which boosts linear resolution by 129%.
• 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 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.
• More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
• Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (2100k vs 1040k dots).
• Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
• More heavily discounted: Has been around for much longer (launched in March 2021).

If the number of relative strengths (bullet points above) is taken as a guide, the fp L is the clear winner of the contest (18 : 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 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 OM System TG-7 and the Sigma fp L place the cameras among the top in their class? Find out in the latest Best Travel-Zoom 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the TG-7 or the fp L. 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.		OM System TG-7	4/5	..	4.5/5	..	4/5	4/5	Sep 2023	US$ 549	amazon.com
2.		Sigma fp L	4/5	..	4/5	..	4/5	4/5	Mar 2021	US$ 2 499	amazon.com
3.		Fujifilm XP130	..	o	..	..	3.5/5	4/5	Jan 2018	US$ 229	ebay.com
4.		Fujifilm XP140	..	+	..	..	3.5/5	4/5	Feb 2019	US$ 229	ebay.com
5.		Leica M11	4.5/5	..	4.5/5	..	4.5/5	4.5/5	Jan 2022	US$ 8 999	amazon.com
6.		Nikon D780	5/5	..	5/5	87/100	4.5/5	4.5/5	Jan 2020	US$ 2 299	amazon.com
7.		Nikon W300	..	+	..	..	4/5	4/5	May 2017	US$ 389	ebay.com
8.		Olympus E-PM1	..	86/100	..	71/100	4.5/5	4.5/5	Jun 2011	US$ 499	ebay.com
9.		Olympus TG-4	..	+	..	79/100	4/5	4/5	Apr 2015	US$ 379	ebay.com
10.		Olympus TG-5	..	+ +	4.5/5	..	4/5	4/5	May 2017	US$ 449	ebay.com
11.		Olympus TG-6	4/5	+ +	4.5/5	76/100	4/5	4/5	May 2019	US$ 449	ebay.com
12.		Olympus XZ-1	4/5	..	..	74/100	4.5/5	4.5/5	Jan 2011	US$ 499	ebay.com
13.		Olympus XZ-2	4/5	+	..	..	4.5/5	4.5/5	Sep 2012	US$ 599	ebay.com
14.		Panasonic FZ300	..	+ +	..	..	4.5/5	4.5/5	Jul 2015	US$ 599	amazon.com
15.		Sigma fp	4/5	..	4/5	..	4/5	4.5/5	Jul 2019	US$ 1 899	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.

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 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.

Check TG-7 price at
amazon.com
Check fp L price at
amazon.com

Other camera comparisons

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