Sigma fp vs Sony A7R IV
The Sigma fp and the Sony Alpha A7R IV are two digital cameras that were revealed to the public in July 2019. Both the fp and the A7R IV are mirrorless interchangeable lens cameras that are equipped with a full frame sensor. The Sigma has a resolution of 24 megapixels, whereas the Sony provides 60.2 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 Alpha A7R IV? 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 Sigma fp and the Sony A7R IV 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 size dimensions 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 A7R IV is considerably larger (57 percent) than the Sigma fp. Moreover, the A7R IV is substantially heavier (58 percent) than the 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.
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.
Concerning battery life, the fp gets 280 shots out of its Sigma BP-51 battery, while the A7R IV can take 670 images on a single charge of its Sony NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, 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.
# | 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 A7R IV | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Jul 2019 | 3,499 | ebay.com | |
3. | Fujifilm X-Pro3 | 141 mm | 83 mm | 46 mm | 497 g | 440 | Y | Oct 2019 | 1,799 | amazon.com | |
4. | Leica SL | 147 mm | 104 mm | 39 mm | 847 g | 400 | Y | Oct 2015 | 7,450 | ebay.com | |
5. | Nikon D780 | 144 mm | 116 mm | 76 mm | 840 g | 2260 | Y | Jan 2020 | 2,299 | amazon.com | |
6. | Panasonic S5 | 133 mm | 98 mm | 82 mm | 714 g | 440 | Y | Sep 2020 | 1,999 | amazon.com | |
7. | Panasonic S1 | 149 mm | 110 mm | 97 mm | 1017 g | 400 | Y | Feb 2019 | 2,499 | amazon.com | |
8. | Panasonic S1H | 151 mm | 114 mm | 110 mm | 1052 g | 400 | Y | May 2019 | 3,999 | amazon.com | |
9. | Panasonic TS7 | 117 mm | 76 mm | 37 mm | 319 g | 300 | Y | May 2018 | 449 | ebay.com | |
10. | Sigma fp L | 113 mm | 70 mm | 45 mm | 427 g | 240 | Y | Mar 2021 | 2,499 | amazon.com | |
11. | Sony A7R IVA | 129 mm | 96 mm | 78 mm | 665 g | 670 | Y | Apr 2021 | 3,499 | amazon.com | |
12. | Sony A7S III | 127 mm | 97 mm | 81 mm | 699 g | 600 | Y | Jul 2020 | 3,499 | amazon.com | |
13. | Sony A7C | 124 mm | 71 mm | 60 mm | 509 g | 740 | Y | Sep 2020 | 1,799 | amazon.com | |
14. | Sony A9 II | 129 mm | 96 mm | 76 mm | 678 g | 690 | Y | Oct 2019 | 4,499 | amazon.com | |
15. | Sony A7 III | 127 mm | 96 mm | 74 mm | 650 g | 610 | Y | Feb 2018 | 1,999 | amazon.com | |
16. | Sony A7R III | 127 mm | 96 mm | 74 mm | 650 g | 650 | Y | Oct 2017 | 3,199 | 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. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The fp was launched at a markedly lower price (by 46 percent) than the A7R IV, which puts it into a different market segment. 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and 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 A7R IV 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 A7R IV offers a higher resolution of 60.2 megapixels, compared with 24 MP of the fp. 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 3.76μm versus 5.98μm for the fp). It is noteworthy in this context that 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 neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Sony A7R IV implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R IV for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the Sigma fp are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.
The A7R IV has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
Unlike the fp, the A7R IV has the capacity to capture high quality composite images (241MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
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 Alpha A7R IV are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.
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.
For many cameras, data on sensor performance has been reported by DXO Mark. 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.
# | 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 | 4000 | 4K/30p | 25.2 | 14.2 | 2829 | 94 | |
2. | Sony A7R IV | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
3. | Fujifilm X-Pro3 | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.1 | 13.6 | 1968 | 84 | |
4. | Leica SL | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 13.4 | 1821 | 88 | |
5. | Nikon D780 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 2877 | 95 | |
6. | Panasonic S5 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.1 | 14.5 | 2697 | 94 | |
7. | Panasonic S1 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.2 | 14.5 | 3333 | 95 | |
8. | Panasonic S1H | Full Frame | 24.0 | 6000 | 4000 | 6K/30p | 25.2 | 14.2 | 2805 | 94 | |
9. | Panasonic TS7 | 1/2.3 | 20.2 | 5184 | 3888 | 4K/30p | 20.6 | 12.1 | 1028 | 51 | |
10. | Sigma fp L | Full Frame | 60.2 | 9520 | 6328 | 4K/30p | 25.3 | 14.4 | 3001 | 96 | |
11. | Sony A7R IVA | Full Frame | 60.2 | 9504 | 6336 | 4K/30p | 26.0 | 14.8 | 3344 | 99 | |
12. | Sony A7S III | Full Frame | 12.0 | 4240 | 2832 | 4K/120p | 23.7 | 13.9 | 2520 | 86 | |
13. | Sony A7C | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3407 | 95 | |
14. | Sony A9 II | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.0 | 3434 | 93 | |
15. | Sony A7 III | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 14.7 | 3730 | 96 | |
16. | Sony A7R III | Full Frame | 42.2 | 7952 | 5304 | 4K/30p | 26.0 | 14.7 | 3523 | 100 | |
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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, 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. For example, the A7R IV has an electronic viewfinder (5760k 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 table below summarizes some of the other core capabilities of the Sigma fp and Sony A7R IV in connection with corresponding information for a sample of similar cameras.
# | 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 fp | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 12.0/s | n | n | |
2. | Sony A7R IV | 5760 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
3. | Fujifilm X-Pro3 | 3690 | n | 3.0 / 1620 | tilting | Y | 1/8000s | 8.0/s | n | n | |
4. | Leica SL | 4400 | Y | 3.0 / 1040 | fixed | Y | 1/8000s | 11.0/s | n | n | |
5. | Nikon D780 | optical | Y | 3.2 / 2359 | tilting | Y | 1/8000s | 12.0/s | n | n | |
6. | Panasonic S5 | 2360 | n | 3.0 / 1840 | swivel | Y | 1/8000s | 7.0/s | n | Y | |
7. | Panasonic S1 | 5760 | Y | 3.2 / 2100 | full-flex | Y | 1/8000s | 9.0/s | n | Y | |
8. | Panasonic S1H | 5760 | Y | 3.2 / 2330 | swivel | Y | 1/8000s | 9.0/s | n | Y | |
9. | Panasonic TS7 | 1170 | n | 3.0 / 1040 | fixed | n | 1/1300s | 10.0/s | Y | Y | |
10. | Sigma fp L | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 10.0/s | n | n | |
11. | Sony A7R IVA | 5760 | n | 3.0 / 2340 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
12. | Sony A7S III | 9440 | n | 3.0 / 1440 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
13. | Sony A7C | 2360 | n | 3.0 / 922 | swivel | Y | 1/4000s | 10.0/s | n | Y | |
14. | Sony A9 II | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 20.0/s | n | Y | |
15. | Sony A7 III | 2359 | n | 3.0 / 922 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
16. | Sony A7R III | 3686 | n | 3.0 / 1440 | tilting | Y | 1/8000s | 10.0/s | n | 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 differentiates the A7R IV and the fp is in-body image stabilization (IBIS). The A7R IV reduces the risk of handshake-induced blur with all attached lenses, while the fp offers no blur reduction with lenses that themselves do not provide optical image stabilization.
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 and the Sony A7R IV 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 fp and the A7R IV write their files to SDXC cards. The A7R IV features dual card slots, which can be very useful in case a memory card fails. In contrast, the fp only has one slot. Moreover, both cameras support UHS-II cards (Ultra High Speed data transfer of up to 312 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 Sigma fp and Sony Alpha A7R IV and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sigma fp | Y | stereo / mono | Y | - | micro | 3.1 | - | - | - | |
2. | Sony A7R IV | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
3. | Fujifilm X-Pro3 | Y | stereo / mono | Y | - | - | 3.1 | Y | - | Y | |
4. | Leica SL | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | - | |
5. | Nikon D780 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
6. | Panasonic S5 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
7. | Panasonic S1 | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
8. | Panasonic S1H | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
9. | Panasonic TS7 | - | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
10. | Sigma fp L | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | - | |
11. | Sony A7R IVA | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
12. | Sony A7S III | Y | stereo / mono | Y | Y | full | 3.2 | Y | - | Y | |
13. | Sony A7C | Y | stereo / mono | Y | Y | micro | 3.2 | Y | Y | Y | |
14. | Sony A9 II | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
15. | Sony A7 III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
16. | Sony A7R III | Y | stereo / mono | Y | Y | micro | 3.1 | Y | Y | Y | |
17. | Sony A7 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the A7R IV offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the fp does not provide wifi capability.
Studio photographers will appreciate that the Sony A7R IV (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 A7R IV has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R IV was succeeded by the Sony A7R V. Further information on the features and operation of the fp and A7R IV can be found, respectively, in the Sigma fp Manual (free pdf) or the online Sony A7R IV Manual.
Review summary
So what conclusions can be drawn? Which of the two cameras – the Sigma fp or the Sony A7R IV – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Advantages of the Sigma fp:
- 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 1440k dots).
- Faster burst: Shoots at higher frequency (12 vs 10 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (113x70mm vs 129x96mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 243g or 37 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
Reasons to prefer the Sony Alpha A7R IV:
- More detail: Has more megapixels (60.2 vs 24MP), which boosts linear resolution by 58%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- 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.
- Longer lasting: Gets more shots (670 versus 280) out of a single battery charge.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- 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.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
If the number of relative strengths (bullet points above) is taken as a guide, the A7R IV is the clear winner of the contest (13 : 6 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 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 Sigma fp and the Sony A7R IV place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing 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 A7R IV 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 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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sigma fp | 4/5 | .. | 4/5 | .. | 4/5 | 4.5/5 | Jul 2019 | 1,899 | amazon.com | |
2. | Sony A7R IV | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2019 | 3,499 | ebay.com | |
3. | Fujifilm X-Pro3 | 4/5 | + | 4/5 | 85/100 | 4/5 | .. | Oct 2019 | 1,799 | amazon.com | |
4. | Leica SL | 4/5 | .. | 4/5 | 84/100 | 4.5/5 | 4/5 | Oct 2015 | 7,450 | ebay.com | |
5. | Nikon D780 | 5/5 | .. | 5/5 | 87/100 | 4.5/5 | 4.5/5 | Jan 2020 | 2,299 | amazon.com | |
6. | Panasonic S5 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4.5/5 | Sep 2020 | 1,999 | amazon.com | |
7. | Panasonic S1 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4/5 | Feb 2019 | 2,499 | amazon.com | |
8. | Panasonic S1H | .. | .. | 4/5 | 90/100 | .. | .. | May 2019 | 3,999 | amazon.com | |
9. | Panasonic TS7 | .. | + | .. | .. | .. | 3.5/5 | May 2018 | 449 | ebay.com | |
10. | Sigma fp L | 4/5 | .. | 4/5 | .. | 4/5 | 4/5 | Mar 2021 | 2,499 | amazon.com | |
11. | Sony A7R IVA | 5/5 | + | 4.5/5 | 91/100 | 4.5/5 | 5/5 | Apr 2021 | 3,499 | amazon.com | |
12. | Sony A7S III | 4.5/5 | + + | 5/5 | 91/100 | 4.5/5 | 5/5 | Jul 2020 | 3,499 | amazon.com | |
13. | Sony A7C | 3.5/5 | .. | 3.5/5 | 86/100 | 4/5 | 4/5 | Sep 2020 | 1,799 | amazon.com | |
14. | Sony A9 II | .. | .. | 5/5 | 90/100 | 5/5 | 5/5 | Oct 2019 | 4,499 | amazon.com | |
15. | Sony A7 III | .. | + + | 4.5/5 | 89/100 | 5/5 | 5/5 | Feb 2018 | 1,999 | amazon.com | |
16. | Sony A7R III | .. | + + | 4/5 | 90/100 | 4.5/5 | 5/5 | Oct 2017 | 3,199 | 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. |
Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
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Specifications: Sigma fp vs Sony A7R IV
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 A7R IV |
---|---|---|
Camera Type | Mirrorless system camera | Mirrorless system camera |
Camera Lens | Leica L mount lenses | Sony E mount lenses |
Launch Date | July 2019 | July 2019 |
Launch Price | USD 1,899 | USD 3,499 |
Sensor Specs | Sigma fp | Sony A7R IV |
Sensor Technology | BSI-CMOS | BSI-CMOS |
Sensor Format | Full Frame Sensor | Full Frame Sensor |
Sensor Size | 35.9 x 23.9 mm | 35.7 x 23.8 mm |
Sensor Area | 858.01 mm2 | 849.66 mm2 |
Sensor Diagonal | 43.1 mm | 42.9 mm |
Crop Factor | 1.0x | 1.0x |
Sensor Resolution | 24 Megapixels | 60.2 Megapixels |
Image Resolution | 6000 x 4000 pixels | 9504 x 6336 pixels |
Pixel Pitch | 5.98 μm | 3.76 μm |
Pixel Density | 2.80 MP/cm2 | 7.09 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | 4K/30p Video | 4K/30p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 32,000 ISO |
ISO Boost | 6 - 102,400 ISO | 50 - 102,400 ISO |
DXO Sensor Quality (score) | .. | 99 |
DXO Color Depth (bits) | .. | 26.0 |
DXO Dynamic Range (EV) | .. | 14.8 |
DXO Low Light (ISO) | .. | 3344 |
Screen Specs | Sigma fp | Sony A7R IV |
Viewfinder Type | Viewfinder optional | Electronic viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.78x | |
Viewfinder Resolution | 5760k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.2inch | 3.0inch |
LCD Resolution | 2100k dots | 1440k dots |
LCD Attachment | Fixed screen | Tilting screen |
Touch Input | Touchscreen | Touchscreen |
Shooting Specs | Sigma fp | Sony A7R IV |
Focus System | Contrast-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/8000s | 1/8000s |
Continuous Shooting | 12 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | up to 1/8000s | YES |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Image Stabilization | Lens stabilization only | In-body stabilization |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | UHS-II | Dual UHS-II |
Connectivity Specs | Sigma fp | Sony A7R IV |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 3.1 | USB 3.1 |
HDMI Port | micro HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Near-Field Communication | no NFC | NFC built-in |
Bluetooth Support | no Bluetooth | Bluetooth built-in |
Body Specs | Sigma fp | Sony A7R IV |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Sigma BP-51 | Sony NP-FZ100 |
Battery Life (CIPA) | 280 shots per charge | 670 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) |
129 x 96 x 78 mm (5.1 x 3.8 x 3.1 in) |
Camera Weight | 422 g (14.9 oz) | 665 g (23.5 oz) |
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