Sigma fp vs Sony RX0
The Sigma fp and the Sony Cyber-shot DSC-RX0 are two digital cameras that were announced, respectively, in July 2019 and August 2017. The fp is a mirrorless interchangeable lens camera, while the RX0 is a fixed lens compact. The cameras are based on a full frame (fp) and an one-inch (RX0) sensor. The Sigma has a resolution of 24 megapixels, whereas the Sony provides 15.4 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Sigma fp and the Sony Cyber-shot DSC-RX0? 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.
The physical size and weight of the Sigma fp and the Sony RX0 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 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 Sony RX0 is considerably smaller (69 percent) than the Sigma fp. 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 RX0 is water-proof up to 10m and can, thus, be used for underwater photography.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX0 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.
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 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.
|1.||Sigma fp||113 mm||70 mm||45 mm||422 g||280||Y||Jul 2019||1,899|
|2.||Sony RX0||59 mm||41 mm||30 mm||110 g||240||Y||Aug 2017||699|
|3.||Fujifilm X100V||128 mm||75 mm||53 mm||478 g||420||Y||Feb 2020||1,399|
|4.||Fujifilm X-Pro3||141 mm||83 mm||46 mm||497 g||440||Y||Oct 2019||1,799|
|5.||Fujifilm X70||113 mm||64 mm||44 mm||340 g||330||n||Jan 2016||799|
|6.||Fujifilm X-Pro2||141 mm||83 mm||46 mm||495 g||350||Y||Jan 2016||1,699|
|7.||Fujifilm X-T2||133 mm||92 mm||49 mm||507 g||340||Y||Jul 2016||1,599|
|8.||Nikon D780||144 mm||116 mm||76 mm||840 g||2260||Y||Jan 2020||2,299|
|9.||Nikon Z50||127 mm||94 mm||60 mm||450 g||320||Y||Oct 2019||859|
|10.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|11.||Panasonic S1H||151 mm||114 mm||110 mm||1052 g||400||Y||May 2019||3,999|
|12.||Panasonic FT7||117 mm||76 mm||37 mm||319 g||300||Y||May 2018||449|
|13.||Sony RX0 II||59 mm||41 mm||35 mm||132 g||240||Y||Mar 2019||699|
|14.||Sony RX10 IV||133 mm||94 mm||145 mm||1095 g||400||Y||Sep 2017||1,699|
|15.||Sony RX10 III||133 mm||94 mm||127 mm||1051 g||420||Y||Mar 2016||1,499|
|16.||Sony RX100 V||102 mm||58 mm||41 mm||299 g||220||n||Oct 2016||999|
|17.||Sony A7||127 mm||94 mm||48 mm||474 g||340||Y||Oct 2013||1,699|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The RX0 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.
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 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 RX0 an one-inch sensor. The sensor area in the RX0 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.
With 24MP, the fp offers a higher resolution than the RX0 (15.4MP), but the fp nevertheless has larger individual pixels (pixel pitch of 5.98μm versus 2.74μm for the RX0) due to its larger sensor. Moreover, the fp is a somewhat more recent model (by 1 year and 10 months) than the RX0, and its sensor might 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 RX0 are 24 x 16 inches or 61 x 40.6 cm for good quality, 19.2 x 12.8 inches or 48.8 x 32.5 cm for very good quality, and 16 x 10.7 inches or 40.6 x 27.1 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-RX0 are ISO 125 to ISO 12800 (no boost).
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|1.||Sigma fp||Full Frame||24.0||6000||4000||4K/30p||..||..||..||..|
|8.||Nikon D780||Full Frame||24.3||6048||4024||4K/30p||..||..||..||..|
|10.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|11.||Panasonic S1H||Full Frame||24.0||6000||4000||6K/30p||..||..||..||..|
|13.||Sony RX0 II||1-inch||15.4||4800||3200||4K/30p||..||..||..||..|
|14.||Sony RX10 IV||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|15.||Sony RX10 III||1-inch||20.0||5472||3648||4K/30p||23.1||12.6||472||70|
|16.||Sony RX100 V||1-inch||20.0||5472||3648||4K/30p||22.8||12.4||586||70|
|17.||Sony A7||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the fp provides a higher video resolution than the RX0. It can shoot video footage at 4K/30p, while the Sony is limited to 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. The fp and the RX0 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 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 RX0, and comparable cameras.
|13.||Sony RX0 II||none||n||1.5||230||tilting||n||..||5.5||n||n|
|14.||Sony RX10 IV||2359||Y||3.0||1440||tilting||Y||1/2000s||24.0||Y||Y|
|15.||Sony RX10 III||2359||Y||3.0||1229||tilting||n||1/2000s||14.0||Y||Y|
|16.||Sony RX100 V||2359||n||3.0||1229||tilting||n||1/2000s||24.0||Y||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The fp has a touchscreen, while the RX0 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
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, both cameras under consideration feature an 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 RX0 uses micro SDXC or Memory Stick Micro cards. The fp supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the RX0 can use UHS-I cards (up to 104 MB/s).
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-RX0 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|13.||Sony RX0 II||-||stereo||mono||Y||-||micro||2.0||Y||-||Y|
|14.||Sony RX10 IV||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|15.||Sony RX10 III||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
|16.||Sony RX100 V||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the fp has a hotshoe, while the RX0 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 RX0 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the RX0 was succeeded by the Sony RX0 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sigma and Sony websites.
So what conclusions can be drawn? Is there a clear favorite between the Sigma fp and the Sony RX0? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Sigma fp:
- More detail: Offers more megapixels (24 vs 15.4MP) with a 25% 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).
- More framing options: Can be equipped with a hotshoe-mounted accessory-viewfinder.
- Larger screen: Has a bigger rear LCD (3.2" vs 1.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (2100k vs 230k dots).
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Faster burst: Shoots at higher frequency (12 vs 5.5 flaps/sec) to capture the decisive moment.
- 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.
- Longer lasting: Can take more shots (280 versus 240) on a single battery charge.
- 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: Is somewhat more recent (announced 1 year and 10 months after the RX0).
Arguments in favor of the Sony Cyber-shot DSC-RX0:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Ready to shoot: Has an integrated lens, whereas the fp necessitates an extra lens.
- More compact: Is smaller (59x41mm 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).
- Water-proof: Is rugged and sealed and can thus be used for underwater photography (up to 10m).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been on the market for longer (launched in August 2017).
If the count of individual advantages (bullet points above) is taken as a guide, the fp is the clear winner of the match-up (19 : 9 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.
How about other alternatives? Do the specifications of the Sigma fp and the Sony RX0 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact 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 fp or the RX0. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
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], 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.
|1.||Sigma fp||4/5||..||..||4/5||4.5/5||Jul 2019||1,899|
|2.||Sony RX0||..||..||..||3.5/5||4/5||Aug 2017||699|
|3.||Fujifilm X100V||5/5||+ +||86/100||5/5||4.5/5||Feb 2020||1,399|
|4.||Fujifilm X-Pro3||4/5||+||85/100||4/5||..||Oct 2019||1,799|
|5.||Fujifilm X70||4.5/5||..||76/100||4.5/5||4.5/5||Jan 2016||799|
|6.||Fujifilm X-Pro2||..||+||83/100||4.5/5||4.5/5||Jan 2016||1,699|
|7.||Fujifilm X-T2||5/5||+ +||86/100||4.5/5||5/5||Jul 2016||1,599|
|8.||Nikon D780||5/5||..||87/100||4.5/5||4.5/5||Jan 2020||2,299|
|9.||Nikon Z50||5/5||..||85/100||4.5/5||4.5/5||Oct 2019||859|
|10.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|11.||Panasonic S1H||..||..||90/100||..||..||May 2019||3,999|
|12.||Panasonic FT7||..||+||..||3.5/5||3.5/5||May 2018||449|
|13.||Sony RX0 II||..||..||..||3.5/5||4/5||Mar 2019||699|
|14.||Sony RX10 IV||5/5||+||84/100||4.5/5||5/5||Sep 2017||1,699|
|15.||Sony RX10 III||5/5||+||84/100||4.5/5||4.5/5||Mar 2016||1,499|
|16.||Sony RX100 V||4.5/5||+ +||83/100||4/5||4.5/5||Oct 2016||999|
|17.||Sony A7||5/5||+ +||80/100||5/5||5/5||Oct 2013||1,699|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Sigma fp vs Sony RX0
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 Model||Sigma fp||Sony RX0|
|Camera Type||Mirrorless system camera||Fixed lens compact camera|
|Camera Lens||Leica L mount lenses||24mm f/4.0|
|Launch Date||July 2019||August 2017|
|Launch Price||USD 1,899||USD 699|
|Sensor Specs||Sigma fp||Sony RX0|
|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|
|Sensor Resolution||24 Megapixels||15.4 Megapixels|
|Image Resolution||6000 x 4000 pixels||4800 x 3200 pixels|
|Pixel Pitch||5.98 μm||2.74 μm|
|Pixel Density||2.80 MP/cm2||13.22 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||4K/30p Video||1080/60p Video|
|ISO Setting||100 - 25,600 ISO||125 - 12,800 ISO|
|ISO Boost||6 - 102,400 ISO||no Enhancement|
|DXO Sensor Quality (score)||..||68|
|DXO Color Depth (bits)||..||22.4|
|DXO Dynamic Range (EV)||..||12.4|
|DXO Low Light (ISO)||..||548|
|Screen Specs||Sigma fp||Sony RX0|
|Viewfinder Type||Viewfinder optional||no viewfinder|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.2inch||1.5inch|
|LCD Resolution||2100k dots||230k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Sigma fp||Sony RX0|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000s||..|
|Continuous Shooting||12 shutter flaps/s||5.5 shutter flaps/s|
|Electronic Shutter||up to 1/8000s||up to 1/32000s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||mMS or mSDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-II||UHS-I|
|Connectivity Specs||Sigma fp||Sony RX0|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 3.1||USB 2.0|
|HDMI Port||micro HDMI||micro HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Sigma fp||Sony RX0|
|Environmental Sealing||Weathersealed body||Waterproof body (10m)|
|Battery Life (CIPA)||280 shots per charge||240 shots per charge|
|In-Camera Charging||USB charging||USB charging|
113 x 70 x 45 mm
(4.4 x 2.8 x 1.8 in)
59 x 41 x 30 mm
(2.3 x 1.6 x 1.2 in)
|Camera Weight||422 g (14.9 oz)||110 g (3.9 oz)|
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