Sony A7 vs A77 II
The Sony Alpha A7 and the Sony Alpha SLT-A77 II are two enthusiast cameras that were officially introduced, respectively, in October 2013 and May 2014. The A7 is a mirrorless interchangeable lens camera, while the A77 II is a DSLR. The cameras are based on a full frame (A7) and an APS-C (A77 II) sensor. Both cameras offer a resolution of 24 megapixels. Read on to find out how these two cameras compare with respect to their body size, their sensors, their features, their input-output connections, and their reception by expert reviewers.
|Sony A7||Sony A77 II|
|Mirrorless system camera||Digital single lens reflex|
|Sony E mount lenses||Sony A mount lenses|
|24 MP, Full Frame Sensor||24 MP, APS-C Sensor|
|1080/60p Video||1080/60p Video|
|ISO 100-25600 (50-51200)||ISO 100-25600 (50-51200)|
|Electronic viewfinder (2400k dots)||Electronic viewfinder (2359k dots)|
|3.0" LCD, 1230k dots||3.0" LCD, 1229k dots|
|Tilting screen (no touchscreen)||Fully flexible screen (no touchscreen)|
|5 shutter flaps per second||12 shutter flaps per second|
|Lens stabilization only||In-body stabilization|
|Weathersealed body||Weathersealed body|
|340 shots per battery charge||480 shots per battery charge|
|127 x 94 x 48 mm, 474 g||143 x 104 x 81 mm, 647 g|
Body comparison: Sony A7 vs A77 II
An illustration of the physical size and weight of the Sony A7 and the Sony A77 II is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the A7 – represents 100 percent across all the size and weight measures).
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 notably larger (25 percent) than the Sony A7. Moreover, the A77 II is substantially heavier (36 percent) than the A7. 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.
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, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Sony A7»||5.0 in||3.7 in||1.9 in||16.7 oz||340||Y||Oct 2013||1,699||-||Sony A7|
|Sony A77 II«||5.6 in||4.1 in||3.2 in||22.8 oz||480||Y||May 2014||1,199||Sony A77 II|
|Nikon D7100« »||5.4 in||4.2 in||3.0 in||27.0 oz||950||Y||Feb 2013||1,199||-||Nikon D7100|
|Nikon D610« »||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Oct 2013||1,999||Nikon D610|
|Panasonic GH4« »||5.2 in||3.7 in||3.3 in||19.8 oz||500||Y||Feb 2014||1,499||-||Panasonic GH4|
|Pentax K-3« »||5.2 in||3.9 in||3.0 in||28.2 oz||560||Y||Oct 2013||1,299||-||Pentax K-3|
|Samsung NX1« »||5.5 in||4.0 in||2.6 in||19.4 oz||500||Y||Sep 2014||1,499||-||Samsung NX1|
|Sony A7 III« »||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999||Sony A7 III|
|Sony A6300« »||4.7 in||2.6 in||1.9 in||14.3 oz||400||Y||Feb 2016||999||-||Sony A6300|
|Sony A6500« »||4.7 in||2.6 in||2.1 in||16.0 oz||350||Y||Oct 2016||1,399||Sony A6500|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||-||Sony A7 II|
|Sony A7S« »||5.0 in||3.7 in||1.9 in||17.2 oz||380||Y||Apr 2014||2,499||-||Sony A7S|
|Sony A7R« »||5.0 in||3.7 in||1.9 in||16.4 oz||340||Y||Oct 2013||2,299||-||Sony A7R|
|Sony RX1R« »||4.4 in||2.6 in||2.8 in||17.0 oz||270||n||Jun 2013||2,799||-||Sony RX1R|
|Sony RX1« »||4.4 in||2.6 in||2.8 in||17.0 oz||270||n||Sep 2012||2,799||-||Sony RX1|
|Sony A77« »||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,999||-||Sony A77|
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 A77 II was launched at a markedly lower price (by 29 percent) than the A7, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
Sensor comparison: Sony A7 vs A77 II
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. 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.
Of the two cameras under consideration, the Sony A7 features a full frame sensor and the Sony A77 II an APS-C sensor. The sensor area in the A77 II is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Even though the A7 has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A7 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.97μm versus 3.91μm for the A77 II), which gives it a potential advantage in terms of light gathering capacity. It should, however, be noted that the A77 II is a somewhat more recent model (by 6 months) than the A7, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.
The A7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during video recording.
The Sony Alpha A7 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-51200.. The Sony Alpha SLT-A77 II offers exactly the same ISO settings.
For many cameras, data on sensor performance has been reported by DXO Mark. 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.
|Sony A7»||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90||Sony A7|
|Sony A77 II«||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Sony A77 II|
|Nikon D7100« »||APS-C||24.0||6000||4000||1080/60p||24.2||13.7||1256||83||Nikon D7100|
|Nikon D610« »||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94||Nikon D610|
|Panasonic GH4« »||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74||Panasonic GH4|
|Pentax K-3« »||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80||Pentax K-3|
|Samsung NX1« »||APS-C||28.0||6480||4320||4K/30p||24.2||13.2||1363||83||Samsung NX1|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A6300« »||APS-C||24.0||6000||4000||4K/30p||24.4||13.7||1437||85||Sony A6300|
|Sony A6500« »||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85||Sony A6500|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7S« »||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87||Sony A7S|
|Sony A7R« »||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95||Sony A7R|
|Sony RX1R« »||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91||Sony RX1R|
|Sony RX1« »||Full Frame||24.0||6000||4000||1080/60p||25.1||14.3||2534||93||Sony RX1|
|Sony A77« »||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. 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 (1080/60p).
Feature comparison: Sony A7 vs A77 II
Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the A7 offers a slightly higher resolution than the one in the A77 II (2400k vs 2359k dots). The table below summarizes some of the other core capabilities of the Sony A7 and Sony A77 II in connection with corresponding information for a sample of similar cameras.
|Sony A7»||2400||n||3.0||1230||tilting||n||8000||5.0||n||n||Sony A7|
|Sony A77 II«||2359||Y||3.0||1229||full-flex||n||8000||12.0||Y||Y||Sony A77 II|
|Nikon D7100« »||optical||Y||3.2||1229||fixed||n||8000||6.0||Y||n||Nikon D7100|
|Nikon D610« »||optical||Y||3.2||921||fixed||n||4000||6.0||Y||n||Nikon D610|
|Panasonic GH4« »||2359||n||3.0||1036||swivel||Y||8000||12.0||Y||n||Panasonic GH4|
|Pentax K-3« »||optical||Y||3.2||1037||fixed||n||8000||8.3||Y||Y||Pentax K-3|
|Samsung NX1« »||2360||Y||3.0||1036||tilting||Y||8000||15.0||Y||n||Samsung NX1|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||8000||10.0||n||Y||Sony A7 III|
|Sony A6300« »||2359||n||3.0||922||tilting||n||4000||11.0||Y||n||Sony A6300|
|Sony A6500« »||2359||n||3.0||922||tilting||Y||4000||11.0||Y||Y||Sony A6500|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||8000||5.0||n||Y||Sony A7 II|
|Sony A7S« »||2400||n||3.0||921||tilting||n||8000||5.0||n||n||Sony A7S|
|Sony A7R« »||2400||n||3.0||1230||tilting||n||8000||4.0||n||n||Sony A7R|
|Sony RX1R« »||-||n||3.0||1229||fixed||n||4000||5.0||Y||n||Sony RX1R|
|Sony RX1« »||-||n||3.0||1229||fixed||n||4000||5.0||Y||n||Sony RX1|
|Sony A77« »||2359||Y||3.0||921||full-flex||n||8000||12.0||Y||Y||Sony A77|
One feature that differentiates the A77 II and the A7 is in-body image stabilization (IBIS). The A77 II reduces the risk of handshake-induced blur with all attached lenses, while the A7 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.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 A7 does not have a selfie-screen.
Concerning the storage of imaging data, both the A7 and the A77 II write their files to SDXC or Memory Stick PRO Duo cards.
Connectivity comparison: Sony A7 vs A77 II
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 Sony Alpha A7 and Sony Alpha SLT-A77 II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Sony A7»||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7|
|Sony A77 II«||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Sony A77 II|
|Nikon D7100« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Nikon D7100|
|Nikon D610« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D610|
|Panasonic GH4« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Panasonic GH4|
|Pentax K-3« »||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3|
|Samsung NX1« »||Y||stereo||mono||Y||Y||micro||3.0||Y||Y||Y||Samsung NX1|
|Sony A7 III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A6300« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6300|
|Sony A6500« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6500|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7S« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S|
|Sony A7R« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R|
|Sony RX1R« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1R|
|Sony RX1« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1|
|Sony A77« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
It is notable that the A7 has a headphone jack, which is not present on the A77 II This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.
The A77 II is a recent model that features in the current product line-up of Sony. In contrast, the A7 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A7 was succeeded by the Sony A7 II.
Review summary: Sony A7 vs A77 II
So what is the bottom line? Which of the two cameras – the Sony A7 or the Sony A77 II – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Sony Alpha A7:
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: Larger pixels generate images with better, more accurate colors.
- More dynamic range: Capable of capturing a wider spectrum of light and dark details.
- Better low-light sensitivity: Can be used in poorly lit environments and still produce good images.
- Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More compact: Is smaller (127x94mm vs 143x104mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 173g or 27 percent) and hence easier to carry around.
- More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
- More heavily discounted: Has been on the market for longer (launched in October 2013).
Advantages of the Sony Alpha SLT-A77 II:
- Easier setting verification: Features a control panel on top to check shooting parameters.
- More flexible LCD: Has 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 burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (480 versus 340) 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.
- More affordable: Was introduced into a lower priced category (29 percent cheaper at launch).
- More modern: Was introduced somewhat (6 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the A7 comes out slightly ahead of the A77 II (10 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the A7 and the A77 II in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
Expert reviews: Sony A7 vs A77 II
This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.
|Sony A7»||HiRec||80/100||5/5||4.5/5||5/5||Oct 2013||1,699||-||Sony A7|
|Sony A77 II«||-||80/100||4.5/5||4/5||5/5||May 2014||1,199||Sony A77 II|
|Nikon D7100« »||HiRec||85/100||4.5/5||5/5||4.5/5||Feb 2013||1,199||-||Nikon D7100|
|Nikon D610« »||HiRec||87/100||4.5/5||4.5/5||4.5/5||Oct 2013||1,999||Nikon D610|
|Panasonic GH4« »||HiRec||85/100||5/5||5/5||5/5||Feb 2014||1,499||-||Panasonic GH4|
|Pentax K-3« »||-||83/100||5/5||4.5/5||5/5||Oct 2013||1,299||-||Pentax K-3|
|Samsung NX1« »||-||87/100||5/5||4.5/5||5/5||Sep 2014||1,499||-||Samsung NX1|
|Sony A7 III« »||HiRec||89/100||5/5||5/5||5/5||Feb 2018||1,999||Sony A7 III|
|Sony A6300« »||Rec||85/100||5/5||5/5||5/5||Feb 2016||999||-||Sony A6300|
|Sony A6500« »||HiRec||85/100||4.5/5||5/5||4.5/5||Oct 2016||1,399||Sony A6500|
|Sony A7 II« »||Rec||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A7S« »||-||86/100||4.5/5||4.5/5||5/5||Apr 2014||2,499||-||Sony A7S|
|Sony A7R« »||HiRec||82/100||4.5/5||5/5||5/5||Oct 2013||2,299||-||Sony A7R|
|Sony RX1R« »||-||-||4/5||rev||4.5/5||Jun 2013||2,799||-||Sony RX1R|
|Sony RX1« »||-||79/100||4/5||4.5/5||4.5/5||Sep 2012||2,799||-||Sony RX1|
|Sony A77« »||91/100||81/100||-||4.5/5||5/5||Aug 2011||1,999||-||Sony A77|
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. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
Specifications: Sony A7 vs Sony A77 II
|Camera Model||Sony A7||Sony A77 II|
|Camera Type||Mirrorless system camera||Digital single lens reflex|
|Camera Lens||Sony E mount lenses||Sony A mount lenses|
|Launch Date||October 2013||May 2014|
|Launch Price||USD 1699||USD 1199|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.8 x 23.9 mm||23.5 x 23.9 mm|
|Sensor Area||855.62 mm2||366.6 mm2|
|Sensor Diagonal||43 mm||28.2 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.97 μm||3.91 μm|
|Pixel Density||2.80 MP/cm2||6.55 MP/cm2|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||100-25600 ISO||100-25600 ISO|
|ISO Boost||50-51200 ISO||50-51200 ISO|
|Image Processor||BIONZ X||BIONZ X|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Resolution||2400k dots||2359k dots|
|Top-Level Screen||no Top Display||Control Panel|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1230k dots||1229k dots|
|LCD Attachment||Tilting screen||Fully flexible screen|
|Maximum Shutter Speed||1/8000s||1/8000s|
|Continuous Shooting||5 shutter flaps/s||12 shutter flaps/s|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||no On-Board Flash||Build-in Flash|
|Storage Medium||MS or SDXC cards||MS or SDXC cards|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||micro HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Headphone Socket||Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||NFC built-in||NFC built-in|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Type||NP-FW50 power pack||NP-FM500H power pack|
|Battery Life (CIPA)||340 shots per charge||480 shots per charge|
127 x 94 x 48 mm
(5.0 x 3.7 x 1.9 in)
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
|Camera Weight||474 g (16.7 oz)||647 g (22.8 oz)|
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