Ricoh GR III vs Sony A77 II
The Ricoh GR III and the Sony Alpha SLT-A77 II are two digital cameras that were officially introduced, respectively, in February 2019 and May 2014. The GR III is a fixed lens compact, while the A77 II is a DSLR. Both cameras are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.
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 Ricoh GR III and the Sony Alpha SLT-A77 II? 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 side-by-side display below illustrates the physical size and weight of the Ricoh GR III and the Sony A77 II. 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 A77 II is considerably larger (120 percent) than the Ricoh GR III. It is noteworthy in this context that the A77 II is splash and dust-proof, while the GR III does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR III has a lens built in, whereas the A77 II is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
The power pack in the GR III can be charged via the USB port, so that it is not always necessary to take the battery charger along 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.
|1.||Ricoh GR III||109 mm||62 mm||33 mm||257 g||200||n||Feb 2019||899|
|2.||Sony A77 II||143 mm||104 mm||81 mm||647 g||480||Y||May 2014||1,199|
|3.||Canon G7 X Mark III||105 mm||61 mm||41 mm||304 g||235||n||Jul 2019||749|
|4.||Fujifilm X-S10||126 mm||85 mm||65 mm||465 g||325||n||Oct 2020||999|
|5.||Fujifilm XF10||113 mm||64 mm||41 mm||279 g||330||n||Jul 2018||499|
|6.||Leica C-LUX||113 mm||67 mm||46 mm||340 g||370||n||Jun 2018||1,049|
|7.||Nikon D7200||136 mm||107 mm||76 mm||765 g||1110||Y||Mar 2015||1,199|
|8.||Nikon D7100||136 mm||107 mm||76 mm||765 g||950||Y||Feb 2013||1,199|
|9.||Panasonic GX9||124 mm||72 mm||47 mm||407 g||260||n||Feb 2018||849|
|10.||Panasonic ZS200||111 mm||65 mm||45 mm||340 g||370||n||Feb 2018||799|
|11.||Ricoh GR II||117 mm||63 mm||35 mm||251 g||320||n||Jun 2015||699|
|12.||Ricoh GR||117 mm||61 mm||35 mm||245 g||290||n||Apr 2013||799|
|13.||Sony ZV-1||105 mm||60 mm||44 mm||294 g||260||n||May 2020||799|
|14.||Sony RX100 VI||102 mm||58 mm||43 mm||301 g||240||n||Jun 2018||1,199|
|15.||Sony A68||143 mm||104 mm||81 mm||610 g||540||n||Nov 2015||699|
|16.||Sony A7 II||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999|
|17.||Sony A77||143 mm||104 mm||81 mm||732 g||470||Y||Aug 2011||1,399|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 GR III was launched at a lower price than the A77 II, 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 sensor inside a digital camera is one of the key determinants 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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.5. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.
The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the GR III and the A77 II have the same pixel density, as well as the same pixel size. It should, however, be noted that the GR III is much more recent (by 4 years and 9 months) than the A77 II, and its sensor will have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the GR III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The GR III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Ricoh GR III has a native sensitivity range from ISO 100 to ISO 102400. The corresponding ISO settings for the Sony Alpha SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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.||Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|2.||Sony A77 II||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|3.||Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|9.||Panasonic GX9||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|11.||Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80|
|14.||Sony RX100 VI||1-inch||20.0||5472||3648||4K/30p||..||..||..||..|
|16.||Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 II has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the GR III relies on live view and the rear LCD for framing. That said, the GR III can be equipped with an optional viewfinder – the GV-1. The adjacent table lists some of the other core features of the Ricoh GR III and Sony A77 II along with similar information for a selection of comparators.
|1.||Ricoh GR III||optional||n||3.0||1037||fixed||Y||1/4000s||4.0||n||Y|
|2.||Sony A77 II||2359||Y||3.0||1229||full-flex||n||1/8000s||12.0||Y||Y|
|3.||Canon G7 X Mark III||none||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y|
|11.||Ricoh GR II||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n|
|14.||Sony RX100 VI||2359||n||3.0||1229||tilting||Y||1/2000s||24.0||Y||Y|
|16.||Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GR III has a touchscreen, while the A77 II has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The A77 II 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 GR III does not have a selfie-screen.
The Ricoh GR III 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 GR III writes its imaging data to SDXC cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of 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 Ricoh GR III and Sony Alpha SLT-A77 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Ricoh GR III||Y||stereo||mono||-||-||-||3.0||Y||-||Y|
|2.||Sony A77 II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-|
|3.||Canon G7 X Mark III||-||stereo||mono||Y||-||micro||3.1||Y||-||Y|
|11.||Ricoh GR II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-|
|14.||Sony RX100 VI||-||stereo||mono||-||-||micro||2.0||Y||Y||Y|
|16.||Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-|
It is notable that the A77 II has a microphone port, which can help to improve the quality of audio recordings by attaching an external microphone. The GR III does not feature such a mic input.
Studio photographers will appreciate that the Sony A77 II (unlike the GR III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the GR III and the A77 II are recent models that are part of the current product line-up. The A77 II replaced the earlier Sony A77, while the GR III followed on from the Ricoh GR II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Ricoh and Sony websites.
So what conclusions can be drawn? Is there a clear favorite between the Ricoh GR III and the Sony A77 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Ricoh GR III:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with a built-in lens, while the A77 II requires a separate lens.
- More compact: Is smaller (109x62mm vs 143x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the A77 II).
- Easier travel charging: Can be conveniently charged via its USB port.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- 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 modern: Reflects 4 years and 9 months of technical progress since the A77 II launch.
Arguments in favor of the Sony Alpha SLT-A77 II:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Easier framing: Has an electronic viewfinder for image composition and settings control.
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More detailed LCD: Has a higher resolution rear screen (1229k vs 1037k dots).
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 4 flaps/sec) to capture the decisive moment.
- More flexible: Makes it possible to change lenses and thus to use specialty optics.
- Longer lasting: Gets more shots (480 versus 200) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been around for much longer (launched in May 2014).
If the number of relative strengths (bullet points above) is taken as a guide, the A77 II is the clear winner of the contest (16 : 12 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 Ricoh GR III and the Sony A77 II place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best DSLR 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 GR III or the A77 II. 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.
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.||Ricoh GR III||4/5||..||81/100||4/5||..||Feb 2019||899|
|2.||Sony A77 II||4/5||..||80/100||4.5/5||5/5||May 2014||1,199|
|3.||Canon G7 X Mark III||..||+ +||81/100||4/5||..||Jul 2019||749|
|4.||Fujifilm X-S10||5/5||..||86/100||4.5/5||4.5/5||Oct 2020||999|
|5.||Fujifilm XF10||..||..||75/100||4/5||4.5/5||Jul 2018||499|
|6.||Leica C-LUX||..||..||..||4.5/5||4/5||Jun 2018||1,049|
|7.||Nikon D7200||4/5||+ +||84/100||4.5/5||4.5/5||Mar 2015||1,199|
|8.||Nikon D7100||5/5||+ +||85/100||4.5/5||4.5/5||Feb 2013||1,199|
|9.||Panasonic GX9||4/5||+||84/100||4.5/5||4.5/5||Feb 2018||849|
|10.||Panasonic ZS200||..||+ +||81/100||4.5/5||4.5/5||Feb 2018||799|
|11.||Ricoh GR II||..||..||..||4.5/5||4.5/5||Jun 2015||699|
|12.||Ricoh GR||5/5||..||79/100||4.5/5||4.5/5||Apr 2013||799|
|13.||Sony ZV-1||4/5||..||85/100||4/5||4.5/5||May 2020||799|
|14.||Sony RX100 VI||4.5/5||+ +||83/100||4/5||4.5/5||Jun 2018||1,199|
|15.||Sony A68||3/5||..||..||4/5||4/5||Nov 2015||699|
|16.||Sony A7 II||5/5||+||82/100||4.5/5||5/5||Nov 2014||1,999|
|17.||Sony A77||5/5||91/100||81/100||..||5/5||Aug 2011||1,399|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price 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.
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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Ricoh GR III vs Sony A77 II
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||Ricoh GR III||Sony A77 II|
|Camera Type||Fixed lens compact camera||Digital single lens reflex|
|Camera Lens||28mm f/2.8||Sony A mount lenses|
|Launch Date||February 2019||May 2014|
|Launch Price||USD 899||USD 1,199|
|Sensor Specs||Ricoh GR III||Sony A77 II|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.5 x 15.6 mm||23.5 x 15.6 mm|
|Sensor Area||366.6 mm2||366.6 mm2|
|Sensor Diagonal||28.2 mm||28.2 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.91 μm||3.91 μm|
|Pixel Density||6.55 MP/cm2||6.55 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||100 - 102,400 ISO||100 - 25,600 ISO|
|ISO Boost||no Enhancement||50 - 51,200 ISO|
|Image Processor||GR Engine VI||BIONZ X|
|Screen Specs||Ricoh GR III||Sony A77 II|
|Viewfinder Type||Viewfinder optional||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||3.0inch|
|LCD Resolution||1037k dots||1229k dots|
|LCD Attachment||Fixed screen||Fully flexible screen|
|Touch Input||Touchscreen||no Touchscreen|
|Shooting Specs||Ricoh GR III||Sony A77 II|
|Focus System||On-Sensor Phase-detect||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||4 shutter flaps/s||12 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Ricoh GR III||Sony A77 II|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 3.0||USB 2.0|
|HDMI Port||no HDMI||mini HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||Bluetooth built-in||no Bluetooth|
|Body Specs||Ricoh GR III||Sony A77 II|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||200 shots per charge||480 shots per charge|
|In-Camera Charging||USB charging||no USB charging|
109 x 62 x 33 mm
(4.3 x 2.4 x 1.3 in)
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
|Camera Weight||257 g (9.1 oz)||647 g (22.8 oz)|
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