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Sigma fp vs Sony RX100 III

The Sigma fp and the Sony Cyber-shot DSC-RX100 III are two digital cameras that were announced, respectively, in July 2019 and May 2014. The fp is a mirrorless interchangeable lens camera, while the RX100 III is a fixed lens compact. The cameras are based on a full frame (fp) and an one-inch (RX100 III) sensor. The Sigma has a resolution of 24 megapixels, whereas the Sony provides 20 MP.

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

Headline Specifications
Sigma fp
versus
Sony RX100 III
Sigma fp   Sony RX100 III
Mirrorless system camera Fixed lens compact camera
Leica L mount lenses 24-70mm f/1.8-2.8
24 MP – Full Frame sensor 20 MP – 1" sensor
4K/30p Video 1080/60p Video
ISO 100-25,600 (6 - 102,400) ISO 100-12,800 (80 - 25,600)
Viewfinder optional Electronic viewfinder (1440k dots)
3.2" LCD – 2100k dots 3.0" LCD – 1229k dots
Fixed touchscreen Tilting screen (no touchscreen)
12 shutter flaps per second 10 shutter flaps per second
Weathersealed bodynot weather sealed
280 shots per battery charge320 shots per battery charge
113 x 70 x 45 mm, 422 g 102 x 58 x 41 mm, 290 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Sigma fp and the Sony Cyber-shot DSC-RX100 III? 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Sigma fp and the Sony RX100 III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Sigma fp vs Sony RX100 III
Compare fp versus RX100 III top
Comparison fp or RX100 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX100 III is notably smaller (25 percent) than the Sigma fp. It is worth mentioning in this context that the fp is splash and dust resistant, while the RX100 III does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX100 III has a lens built in, whereas the fp 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 fp gets 280 shots out of its Sigma BP-51 battery, while the RX100 III can take 320 images on a single charge of its Sony NP-BX1 power pack. The battery packs of both cameras can be charged via USB, 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. 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.

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Body Specifications
# image Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sigma fp 113 mm 70 mm 45 mm 422 g 280 Y Jul 2019 1,899 amazon.com
2.
 
Sony RX100 III 102 mm 58 mm 41 mm 290 g 320 n May 2014 799ebay.com
3.
 
Canon G7 X 103 mm 60 mm 40 mm 304 g 210 n Sep 2014 699ebay.com
4.
 
Fujifilm X-Pro3 141 mm 83 mm 46 mm 497 g 440 Y Oct 2019 1,799 amazon.com
5.
 
Leica SL 147 mm 104 mm 39 mm 847 g 400 Y Oct 2015 7,450ebay.com
6.
 
Nikon D780 144 mm 116 mm 76 mm 840 g 2260 Y Jan 2020 2,299 amazon.com
7.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 amazon.com
8.
 
Panasonic S1 149 mm 110 mm 97 mm 1017 g 400 Y Feb 2019 2,499 amazon.com
9.
 
Panasonic S1H 151 mm 114 mm 110 mm 1052 g 400 Y May 2019 3,999 amazon.com
10.
 
Panasonic TS7 117 mm 76 mm 37 mm 319 g 300 Y May 2018 449ebay.com
11.
 
Sigma fp L 113 mm 70 mm 45 mm 427 g 240 Y Mar 2021 2,499 amazon.com
12.
 
Sony A7C 124 mm 71 mm 60 mm 509 g 740 Y Sep 2020 1,799 amazon.com
13.
 
Sony RX100 VII 102 mm 58 mm 43 mm 302 g 260 n Jul 2019 1,199 amazon.com
14.
 
Sony RX100 IV 102 mm 58 mm 41 mm 298 g 280 n Jun 2015 999ebay.com
15.
 
Sony A7 127 mm 94 mm 48 mm 474 g 340 Y Oct 2013 1,699ebay.com
16.
 
Sony RX100 II 102 mm 58 mm 38 mm 281 g 350 n Jun 2013 749ebay.com
17.
 
Sony RX100 102 mm 58 mm 36 mm 240 g 330 n Jun 2012 649ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
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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 RX100 III was launched at a lower price than the fp, 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. 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. 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Sigma fp features a full frame sensor and the Sony RX100 III an one-inch sensor. The sensor area in the RX100 III is 86 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Sigma fp and Sony RX100 III sensor measures

With 24MP, the fp offers a higher resolution than the RX100 III (20MP), but the fp nevertheless has larger individual pixels (pixel pitch of 5.98μm versus 2.41μm for the RX100 III) due to its larger sensor. Moreover, the fp is a much more recent model (by 5 years and 1 month) than the RX100 III, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. 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 Sony RX100 III are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The Sigma fp has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 6-102400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX100 III are ISO 100 to ISO 12800, with the possibility to increase the ISO range to 80-25600.

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.

fp versus RX100 III MP

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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
# image Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sigma fp Full Frame 24.0 6000 40004K/30p25.214.2282994
2.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
3.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
4.
 
Fujifilm X-Pro3 APS-C 26.0 6240 41604K/30p24.113.6196884
5.
 
Leica SL Full Frame 24.0 6000 40004K/30p25.013.4182188
6.
 
Nikon D780 Full Frame 24.3 6048 40244K/30p25.314.3287795
7.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
8.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
9.
 
Panasonic S1H Full Frame 24.0 6000 40006K/30p25.214.2280594
10.
 
Panasonic TS7 1/2.3 20.2 5184 38884K/30p20.612.1102851
11.
 
Sigma fp L Full Frame 60.2 9520 63284K/30p25.314.4300196
12.
 
Sony A7C Full Frame 24.0 6000 40004K/30p25.014.7340795
13.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
14.
 
Sony RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
15.
 
Sony A7 Full Frame 24.0 6000 40001080/60p24.814.2224890
16.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
17.
 
Sony RX100 1-inch 20.0 5472 36481080/60p22.612.439066
Note: DXO values in italics represent estimates based on sensor size and age.
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Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the fp provides a higher video resolution than the RX100 III. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the RX100 III has an electronic viewfinder (1440k dots), which can be very helpful 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 following table reports on some other key feature differences and similarities of the Sigma fp, the Sony RX100 III, and comparable cameras.

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Core Features
# image 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.
 
Sigma fpoptional n3.2 / 2100 fixed Y 1/8000s 12.0/s n n
2.
 
Sony RX100 III1440 n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
3.
 
Canon G7 Xnone n3.0 / 1040 tilting Y 1/2000s 6.5/s Y Y
4.
 
Fujifilm X-Pro33690 n3.0 / 1620 tilting Y 1/8000s 8.0/s n n
5.
 
Leica SL4400 Y3.0 / 1040 fixed Y 1/8000s 11.0/s n n
6.
 
Nikon D780optical Y3.2 / 2359 tilting Y 1/8000s 12.0/s n n
7.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0/s n Y
8.
 
Panasonic S15760 Y3.2 / 2100 full-flex Y 1/8000s 9.0/s n Y
9.
 
Panasonic S1H5760 Y3.2 / 2330 swivel Y 1/8000s 9.0/s n Y
10.
 
Panasonic TS71170 n3.0 / 1040 fixed n 1/1300s 10.0/s Y Y
11.
 
Sigma fp Loptional n3.2 / 2100 fixed Y 1/8000s 10.0/s n n
12.
 
Sony A7C2360 n3.0 / 922 swivel Y 1/4000s 10.0/s n Y
13.
 
Sony RX100 VII2359 n3.0 / 921 tilting Y 1/2000s 90.0/s Y Y
14.
 
Sony RX100 IV2359 n3.0 / 1228 tilting n 1/2000s 16.0/s Y Y
15.
 
Sony A72400 n3.0 / 1230 tilting n 1/8000s 5.0/s n n
16.
 
Sony RX100 IIoptional n3.0 / 1229 tilting n 1/2000s 10.0/s Y Y
17.
 
Sony RX100none n3.0 / 1229 fixed n 1/2000s 10.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
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One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The fp has a touchscreen, while the RX100 III has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The RX100 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the fp does not have a selfie-screen.

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 fp writes its imaging data to SDXC cards, while the RX100 III uses SDXC or Memory Stick PRO Duo cards. The fp supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the RX100 III can use UHS-I cards (up to 104 MB/s).

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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 Sigma fp and Sony Cyber-shot DSC-RX100 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
# image Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Sigma fpYstereo / monoY-micro3.1---
2.
 
Sony RX100 III-stereo / mono--micro2.0YY-
3.
 
Canon G7 X-stereo / mono--micro2.0YY-
4.
 
Fujifilm X-Pro3Ystereo / monoY--3.1Y-Y
5.
 
Leica SLYstereo / monoYYfull3.0Y--
6.
 
Nikon D780Ystereo / monoYYmini3.1Y-Y
7.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
8.
 
Panasonic S1Ystereo / monoYYfull3.1Y-Y
9.
 
Panasonic S1HYstereo / monoYYfull3.1Y-Y
10.
 
Panasonic TS7-stereo / mono--micro2.0Y--
11.
 
Sigma fp LYstereo / monoYYmicro3.2Y--
12.
 
Sony A7CYstereo / monoYYmicro3.2YYY
13.
 
Sony RX100 VII-stereo / monoY-micro2.0YYY
14.
 
Sony RX100 IV-stereo / mono--micro2.0YY-
15.
 
Sony A7Ystereo / monoYYmicro2.0YY-
16.
 
Sony RX100 IIYstereo / mono--micro2.0YY-
17.
 
Sony RX100-stereo / mono--micro2.0---
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It is notable that the fp has a hotshoe, while the RX100 III does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

The fp is a recent model that features in the current product line-up of Sigma. In contrast, the RX100 III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the RX100 III was succeeded by the Sony RX100 IV. Further information on the features and operation of the fp and RX100 III can be found, respectively, in the Sigma fp Manual (free pdf) or the online Sony RX100 III Manual.

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Review summary

So how do things add up? Is the Sigma fp better than the Sony RX100 III or vice versa? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Sigma fp:

  • More detail: Offers more megapixels (24 vs 20MP) with a 10% higher linear resolution.
  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • Better image quality: Features a larger and more technologically advanced imaging 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.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • 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 1229k dots).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/2000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 10 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 flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 5 years and 1 month of technical progress since the RX100 III launch.

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Reasons to prefer the Sony Cyber-shot DSC-RX100 III:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Easier framing: Has an electronic viewfinder for image composition and settings control.
  • More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Ready to shoot: Has an integrated lens, whereas the fp necessitates an extra lens.
  • More compact: Is smaller (102x58mm vs 113x70mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the fp).
  • Longer lasting: Gets more shots (320 versus 280) out of a single battery charge.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • 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 at a lower price, despite coming with a built-in lens.
  • More heavily discounted: Has been around for much longer (launched in May 2014).

If the count of individual advantages (bullet points above) is taken as a guide, the fp is the clear winner of the match-up (21 : 14 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 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.

fp 21:14 RX100 III

How about other alternatives? Do the specifications of the Sigma fp and the Sony RX100 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Travel-Zoom 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 says little about, for example, the shooting experience and imaging performance of the fp and the RX100 III in practical situations. 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 expert reviews 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.

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Expert Camera Reviews
# image  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Sigma fp4/5..4/5..4/54.5/5 Jul 2019 1,899 amazon.com
2.
 
Sony RX100 III5/5+ +..82/1004.5/55/5 May 2014 799ebay.com
3.
 
Canon G7 X4/5+ +..77/1004.5/54.5/5 Sep 2014 699ebay.com
4.
 
Fujifilm X-Pro34/5+4/585/1004/5.. Oct 2019 1,799 amazon.com
5.
 
Leica SL4/5..4/584/1004.5/54/5 Oct 2015 7,450ebay.com
6.
 
Nikon D7805/5..5/587/1004.5/54.5/5 Jan 2020 2,299 amazon.com
7.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 amazon.com
8.
 
Panasonic S14.5/5+ +4.5/588/1004.5/54/5 Feb 2019 2,499 amazon.com
9.
 
Panasonic S1H....4/590/100.... May 2019 3,999 amazon.com
10.
 
Panasonic TS7..+......3.5/5 May 2018 449ebay.com
11.
 
Sigma fp L4/5..4/5..4/54/5 Mar 2021 2,499 amazon.com
12.
 
Sony A7C3.5/5..3.5/586/1004/54/5 Sep 2020 1,799 amazon.com
13.
 
Sony RX100 VII4.5/5..4/5..4/55/5 Jul 2019 1,199 amazon.com
14.
 
Sony RX100 IV4.5/5+ +..85/1004/54.5/5 Jun 2015 999ebay.com
15.
 
Sony A75/5+ +..80/1005/55/5 Oct 2013 1,699ebay.com
16.
 
Sony RX100 II5/5+ +..79/1004.5/54.5/5 Jun 2013 749ebay.com
17.
 
Sony RX1005/5+ +..78/1004/55/5 Jun 2012 649ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.
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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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Sigma fp vs Sony RX100 III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Sigma fp Sony RX100 III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Leica L mount lenses 24-70mm f/1.8-2.8
    Launch Date July 2019 May 2014
    Launch Price USD 1,899 USD 799
    Sensor Specs Sigma fp Sony RX100 III
    Sensor Technology BSI-CMOS BSI-CMOS
    Sensor Format Full Frame Sensor 1" Sensor
    Sensor Size 35.9 x 23.9 mm 13.2 x 8.8 mm
    Sensor Area 858.01 mm2 116.16 mm2
    Sensor Diagonal 43.1 mm 15.9 mm
    Crop Factor 1.0x 2.7x
    Sensor Resolution 24 Megapixels 20 Megapixels
    Image Resolution 6000 x 4000 pixels 5472 x 3648 pixels
    Pixel Pitch 5.98 μm 2.41 μm
    Pixel Density 2.80 MP/cm2 17.18 MP/cm2
    Moiré control no AA filter Anti-Alias filter
    Movie Capability 4K/30p Video 1080/60p Video
    ISO Setting 100 - 25,600 ISO 100 - 12,800 ISO
    ISO Boost 6 - 102,400 ISO 80 - 25,600 ISO
    DXO Sensor Quality (score) .. 67
    DXO Color Depth (bits) .. 22.4
    DXO Dynamic Range (EV) .. 12.3
    DXO Low Light (ISO) .. 495
    Screen Specs Sigma fp Sony RX100 III
    Viewfinder Type Viewfinder optional Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.59x
    Viewfinder Resolution 1440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 1229k dots
    LCD Attachment Fixed screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Sigma fp Sony RX100 III
    Focus System Contrast-detect AF Contrast-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/2000s
    Continuous Shooting 12 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/8000sno E-Shutter
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    Fill Flash no On-Board Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-II UHS-I
    Connectivity Specs Sigma fp Sony RX100 III
    External Flash Hotshoe no Hotshoe
    USB Connector USB 3.1 USB 2.0
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Sigma fp Sony RX100 III
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type Sigma BP-51 Sony NP-BX1
    Battery Life (CIPA)280 shots per charge320 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 113 x 70 x 45 mm
    (4.4 x 2.8 x 1.8 in)
    102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 422 g (14.9 oz) 290 g (10.2 oz)
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