Sony A77 vs Nikon D7000
The Sony Alpha SLT-A77 and the Nikon D7000 are two enthusiast cameras that were announced, respectively, in August 2011 and September 2010. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Sony has a resolution of 24 megapixels, whereas the Nikon provides 16.1 MP. 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 A77||Nikon D7000|
|Digital single lens reflex||Digital single lens reflex|
|Sony A mount lenses||Nikon F mount lenses|
|24 MP, APS-C Sensor||16.1 MP, APS-C Sensor|
|1080/60p Video||10800/24p Video|
|ISO 100-16000 (50-25600)||ISO 100-6400 (100-25600)|
|Electronic viewfinder (2359k dots)||Optical viewfinder|
|3.0" LCD, 921k dots||3.0" LCD, 921k dots|
|Fully flexible screen (no touchscreen)||Fixed screen (not touch-sensitive)|
|12 shutter flaps per second||6 shutter flaps per second|
|In-body stabilization||Lens stabilization only|
|Weathersealed body||Weathersealed body|
|470 shots per battery charge||1050 shots per battery charge|
|143 x 104 x 81 mm, 732 g||132 x 105 x 77 mm, 780 g|
Body comparison: Sony A77 vs Nikon D7000
The physical size and weight of the Sony A77 and the Nikon D7000 are illustrated 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 size dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left – the A77 – 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 Nikon D7000 is notably smaller (7 percent) than the Sony A77. However, the D7000 is markedly heavier (7 percent) than the A77. 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 adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Sony A77»||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,999||-||Sony A77|
|Nikon D7000«||5.2 in||4.1 in||3.0 in||27.5 oz||1050||Y||Sep 2010||1,499||-||Nikon D7000|
|Canon 6D« »||5.7 in||4.4 in||2.8 in||27.2 oz||1090||Y||Sep 2012||2,099||-||Canon 6D|
|Canon 7D« »||5.8 in||4.4 in||2.9 in||30.3 oz||800||Y||Sep 2009||1,699||-||Canon 7D|
|Fujifilm X-H1« »||5.5 in||3.8 in||3.4 in||23.7 oz||310||Y||Feb 2018||1,899||Fujifilm X-H1|
|Nikon D7500« »||5.4 in||4.1 in||2.9 in||25.4 oz||950||Y||Apr 2017||1,299||Nikon D7500|
|Nikon D7100« »||5.4 in||4.2 in||3.0 in||27.0 oz||950||Y||Feb 2013||1,199||-||Nikon D7100|
|Nikon D600« »||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Sep 2012||2,099||-||Nikon D600|
|Nikon D300S« »||5.8 in||4.5 in||3.2 in||33.1 oz||950||Y||Jul 2009||1,799||-||Nikon D300S|
|Nikon D90« »||5.2 in||4.1 in||3.0 in||24.8 oz||850||n||Aug 2008||1,299||-||Nikon D90|
|Panasonic GH5« »||5.5 in||3.9 in||3.4 in||25.6 oz||410||Y||Jan 2017||1,999||Panasonic GH5|
|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 A9« »||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499||Sony A9|
|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 A77 II« »||5.6 in||4.1 in||3.2 in||22.8 oz||480||Y||May 2014||1,199||Sony A77 II|
|Sony A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||-||Sony A99|
|Sony A850« »||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Aug 2009||1,999||-||Sony A850|
Any camera decision will naturally be influenced heavily by the price. 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 D7000 was launched at a somewhat lower price (by 25 percent) than the A77, which makes it more attractive for photographers on a tight budget. 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.
Sensor comparison: Sony A77 vs Nikon D7000
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 more expensive and lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the D7000 is 1 percent bigger. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
In terms of underlying technology, both cameras are build around CMOS sensors.
Despite having a slightly smaller sensor, the Sony A77 offers a higher resolution of 24 megapixels, compared with 16.1 MP of the Nikon D7000. 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 3.91μm versus 4.80μm for the D7000). However, it should be noted that the A77 is a somewhat more recent model (by 11 months) than the D7000, and its sensor might have benefitted from technological advances during this time that partly offset its pixel-size disadvantage.
The Sony Alpha SLT-A77 has a native sensitivity range from ISO 100 to ISO 16000, which can be extended to ISO 50-25600. The corresponding ISO settings for the Nikon D7000 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-25600..
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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Sony A77»||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
|Nikon D7000«||APS-C||16.1||4928||3264||10800/24p||23.5||13.9||1167||80||Nikon D7000|
|Canon 6D« »||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82||Canon 6D|
|Canon 7D« »||APS-C||17.9||5184||3456||1080/30p||22.0||11.7||854||66||Canon 7D|
|Fujifilm X-H1« »||APS-C||24.0||6000||4000||4K/30p||-||-||-||-||Fujifilm X-H1|
|Nikon D7500« »||APS-C||20.7||5568||3712||4K/30p||24.3||14.0||1483||86||Nikon D7500|
|Nikon D7100« »||APS-C||24.0||6000||4000||1080/60p||24.2||13.7||1256||83||Nikon D7100|
|Nikon D600« »||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94||Nikon D600|
|Nikon D300S« »||APS-C||12.2||4288||2848||720/24p||22.5||12.2||787||70||Nikon D300S|
|Nikon D90« »||APS-C||12.2||4288||2848||720/24p||22.7||12.5||977||73||Nikon D90|
|Panasonic GH5« »||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77||Panasonic GH5|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Sony A9« »||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92||Sony A9|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A77 II« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Sony A77 II|
|Sony A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
|Sony A850« »||Full Frame||24.4||6048||4032||-||23.8||12.2||1415||79||Sony A850|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the A77 provides a higher frame rate than the D7000. It can shoot video footage at 1080/60p, while the Nikon is limited to 10800/24p.
Feature comparison: Sony A77 vs Nikon D7000
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the A77 has an electronic viewfinder (2359k dots), while the D7000 has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Sony A77 and Nikon D7000 in connection with corresponding information for a sample of similar cameras.
|Sony A77»||2359||Y||3.0||921||full-flex||n||8000||12.0||Y||Y||Sony A77|
|Nikon D7000«||optical||Y||3.0||921||fixed||n||8000||6.0||Y||n||Nikon D7000|
|Canon 6D« »||optical||Y||3.0||1040||fixed||n||4000||4.5||n||n||Canon 6D|
|Canon 7D« »||optical||Y||3.0||920||fixed||n||8000||8.0||Y||n||Canon 7D|
|Fujifilm X-H1« »||3690||Y||3.0||1040||full-flex||Y||8000||14.0||n||Y||Fujifilm X-H1|
|Nikon D7500« »||optical||Y||3.2||922||tilting||Y||8000||8.0||Y||n||Nikon D7500|
|Nikon D7100« »||optical||Y||3.2||1229||fixed||n||8000||6.0||Y||n||Nikon D7100|
|Nikon D600« »||optical||Y||3.0||921||fixed||n||4000||5.5||Y||n||Nikon D600|
|Nikon D300S« »||optical||Y||3.0||920||fixed||n||8000||7.0||Y||n||Nikon D300S|
|Nikon D90« »||optical||Y||3.0||920||fixed||n||4000||4.5||Y||n||Nikon D90|
|Panasonic GH5« »||3680||n||3.2||1620||swivel||Y||8000||12.0||n||Y||Panasonic GH5|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||8000||10.0||n||Y||Sony A7 III|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||8000||20.0||n||Y||Sony A9|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||8000||5.0||n||Y||Sony A7 II|
|Sony A77 II« »||2359||Y||3.0||1229||full-flex||n||8000||12.0||Y||Y||Sony A77 II|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||8000||6.0||n||Y||Sony A99|
|Sony A850« »||optical||Y||3.0||922||fixed||n||8000||3.0||n||Y||Sony A850|
One feature that differentiates the A77 and the D7000 is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the D7000 has to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.The A77 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the D7000 does not have a selfie-screen.
The A77 writes its imaging data to SDXC or Memory Stick PRO Duo cards, while the D7000 uses SDXC cards. The D7000 features dual card slots, which can be very useful in case a memory card fails. In contrast, the A77 only has one slot.
Connectivity comparison: Sony A77 vs Nikon D7000
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 SLT-A77 and Nikon D7000 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Sony A77»||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
|Nikon D7000«||Y||mono||mono||Y||-||mini||2.0||-||-||-||Nikon D7000|
|Canon 6D« »||Y||mono||mono||Y||-||mini||2.0||Y||-||-||Canon 6D|
|Canon 7D« »||Y||mono||-||Y||-||mini||2.0||-||-||-||Canon 7D|
|Fujifilm X-H1« »||Y||stereo||mono||Y||-||micro||3.0||Y||-||-||Fujifilm X-H1|
|Nikon D7500« »||Y||stereo||mono||Y||Y||mini||2.0||Y||-||Y||Nikon D7500|
|Nikon D7100« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Nikon D7100|
|Nikon D600« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D600|
|Nikon D300S« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Nikon D300S|
|Nikon D90« »||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D90|
|Panasonic GH5« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic GH5|
|Sony A7 III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Sony A9« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A9|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A77 II« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Sony A77 II|
|Sony A99« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
|Sony A850« »||Y||-||-||-||-||mini||2.0||-||-||-||Sony A850|
Both the A77 and the D7000 have been discontinued, but can regularly be found used on eBay. The D7000 was replaced by the Nikon D7100, while the A77 was followed by the Sony A77 II.
Review summary: Sony A77 vs Nikon D7000
So what is the bottom line? Which of the two cameras – the Sony A77 or the Nikon D7000 – has the upper hand? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Sony Alpha SLT-A77:
- More detail: Offers more megapixels (24 vs 16.1MP) with a 22% higher linear resolution.
- Better video: Provides higher movie framerates (1080/60p versus 10800/24p).
- More framing info: Has an electronic viewfinder that displays shooting data.
- 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 6 flaps/sec) to capture the decisive moment.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- More modern: Is somewhat more recent (announced 11 months after the D7000).
Reasons to prefer the Nikon D7000:
- More dynamic range: Captures a broader range of light and dark details (0.7 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Longer lasting: Gets more shots (1050 versus 470) out of a single battery charge.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More affordable: Was released into a lower priced segment (25 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in September 2010).
If the count of individual advantages (bullet points above) is taken as a guide, the A77 comes out slightly ahead of the D7000 (8 : 7 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.
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 handling experience and imaging performance when actually working with the A77 or the D7000. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.
Expert reviews: Sony A77 vs Nikon D7000
This is why expert reviews are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.
|Sony A77»||91/100||81/100||-||4.5/5||5/5||Aug 2011||1,999||-||Sony A77|
|Nikon D7000«||-||80/100||4.5/5||5/5||4.5/5||Sep 2010||1,499||-||Nikon D7000|
|Canon 6D« »||HiRec||83/100||4.5/5||4.5/5||4.5/5||Sep 2012||2,099||-||Canon 6D|
|Canon 7D« »||HiRec||84/100||4.5/5||5/5||4.5/5||Sep 2009||1,699||-||Canon 7D|
|Fujifilm X-H1« »||Rec||86/100||4.5/5||-||4.5/5||Feb 2018||1,899||Fujifilm X-H1|
|Nikon D7500« »||HiRec||86/100||5/5||4.5/5||4.5/5||Apr 2017||1,299||Nikon D7500|
|Nikon D7100« »||HiRec||85/100||4.5/5||5/5||4.5/5||Feb 2013||1,199||-||Nikon D7100|
|Nikon D600« »||HiRec||87/100||5/5||4.5/5||4.5/5||Sep 2012||2,099||-||Nikon D600|
|Nikon D300S« »||HiRec||82/100||4/5||5/5||4.5/5||Jul 2009||1,799||-||Nikon D300S|
|Nikon D90« »||HiRec||HiRec||4/5||5/5||4.5/5||Aug 2008||1,299||-||Nikon D90|
|Panasonic GH5« »||HiRec||85/100||4.5/5||5/5||5/5||Jan 2017||1,999||Panasonic GH5|
|Sony A7 III« »||HiRec||89/100||5/5||5/5||5/5||Feb 2018||1,999||Sony A7 III|
|Sony A9« »||HiRec||89/100||5/5||5/5||5/5||Apr 2017||4,499||Sony A9|
|Sony A7 II« »||Rec||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A77 II« »||-||80/100||4.5/5||4/5||5/5||May 2014||1,199||Sony A77 II|
|Sony A99« »||-||84/100||4.5/5||rev||4.5/5||Sep 2012||2,799||-||Sony A99|
|Sony A850« »||-||75/100||-||4/5||4.5/5||Aug 2009||1,999||-||Sony A850|
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
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Specifications: Sony A77 vs Nikon D7000
|Camera Model||Sony A77||Nikon D7000|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Sony A mount lenses||Nikon F mount lenses|
|Launch Date||August 2011||September 2010|
|Launch Price||USD 1999||USD 1499|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||23.5 x 15.6 mm||23.6 x 15.6 mm|
|MP Resolution||24 Megapixels||16.1 Megapixels|
|Image Resolution||6000 x 4000 pixels||4928 x 3264 pixels|
|Pixel Size||3.91 μm||4.80 μm|
|Movie Capability||1080/60p Video||10800/24p Video|
|ISO Setting||100-16000 ISO||100-6400 ISO|
|ISO Boost||50-25600 ISO||100-25600 ISO|
|Viewfinder Type||Electronic viewfinder||Optical viewfinder|
|Viewfinder Resolution||2359k dots||n/a|
|Top-Level Screen||Control Panel||Control Panel|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||921k dots||921k dots|
|LCD Attachment||Fully flexible screen||Fixed screen|
|Maximum Shutter Speed||1/8000s||1/8000s|
|Continuous Shooting||12 shutter flaps/s||6 shutter flaps/s|
|Image Stabilization||In-body stabilization||Lens stabilization only|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||MS or SDXC cards||SDXC cards|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Wifi Support||no Wifi||no Wifi|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Type||NP-FM500H power pack||EN-EL15 power pack|
|Battery Life||470 shots per charge||1050 shots per charge|
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
132 x 105 x 77 mm
(5.2 x 4.1 x 3.0 in)
|Camera Weight||732 g (25.8 oz)||780 g (27.5 oz)|
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