Sony A99 versus Sony A7
The Sony Alpha SLT-A99 and the Sony Alpha A7 are two digital cameras that were announced, respectively, in September 2012 and October 2013. The A99 is a DSLR, while the A7 is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. Both cameras offer a resolution of 24 megapixel.
An illustration of the physical size and weight of the Sony A99 and the Sony A7 is provided in the side-by-side display below. 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. You can also toggle the display 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 A99 – 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 A7 is notably smaller (27 percent) than the Sony A99. Moreover, the A7 is substantially lighter (42 percent) than the A99. Cameras intended for semi-professional or professional use tend to be a bit bulkier in order to give them the necessary ruggedness. 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 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 want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Sony A99 (⇒ rgt)||5.8 in||4.4 in||3.1 in||28.6 oz||500||YES||2012||2,799||discont.||check|
|Sony A7 (⇒ lft)||5.0 in||3.7 in||1.9 in||16.7 oz||340||YES||2013||1,699||discont.||check|
|Canon 6D Mark II (⇒ lft | rgt)||5.7 in||4.4 in||3.0 in||27.0 oz||1200||YES||2017||1,999||latest||check|
|Nikon D610 (⇒ lft | rgt)||5.6 in||4.4 in||3.2 in||30.0 oz||900||YES||2013||1,999||latest||check|
|Sony A9 (⇒ lft | rgt)||5.0 in||3.8 in||2.5 in||23.7 oz||650||YES||2017||4,499||latest||check|
|Sony A99 II (⇒ lft | rgt)||5.6 in||4.1 in||3.0 in||29.9 oz||490||YES||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||5.0 in||3.8 in||2.4 in||22.0 oz||290||YES||2015||3,199||discont.||check|
|Sony A7S II (⇒ lft | rgt)||5.0 in||3.8 in||2.4 in||22.1 oz||370||YES||2015||2,999||latest||check|
|Sony A7 II (⇒ lft | rgt)||5.0 in||3.8 in||2.4 in||21.1 oz||350||YES||2014||1,999||latest||check|
|Sony A7S (⇒ lft | rgt)||5.0 in||3.7 in||1.9 in||17.2 oz||380||YES||2014||2,499||discont.||check|
|Sony A7R (⇒ lft | rgt)||5.0 in||3.7 in||1.9 in||16.4 oz||340||YES||2013||2,299||discont.||check|
|Sony A77 (⇒ lft | rgt)||5.6 in||4.1 in||3.2 in||25.8 oz||470||YES||2011||1,999||discont.||check|
|Sony A850 (⇒ lft | rgt)||6.1 in||4.6 in||3.2 in||31.6 oz||880||YES||2009||1,999||discont.||check|
|Sony A900 (⇒ lft | rgt)||6.1 in||4.6 in||3.2 in||31.6 oz||880||YES||2008||2,999||discont.||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A7 was launched at a markedly lower price (by 39 percent) than the A99, which puts it into a different market segment. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. 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 are more costly to manufacture and tent to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. 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.
Even though the A7 has a larger sensor, both cameras offer the same resolution of 24 megapixel. This implies that the A7 has a lower pixel density and larger individual pixels (with a pixel pitch of 5.97μm versus 5.97μm for the A99), which gives it a potential advantage in terms of light gathering capacity. In addition, the A7 is a somewhat more recent model (by 1 year and 1 month) than the A99, and its sensor might have benefitted from technological advances during this time.
For most 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Sony A99 (⇒ rgt)||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
|Sony A7 (⇒ lft)||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
|Canon 6D Mark II (⇒ lft | rgt)||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|Nikon D610 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|Sony A9 (⇒ lft | rgt)||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|Sony A99 II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Sony A7S II (⇒ lft | rgt)||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
|Sony A7 II (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7S (⇒ lft | rgt)||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
|Sony A7R (⇒ lft | rgt)||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
|Sony A77 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||24||13.2||801||78|
|Sony A850 (⇒ lft | rgt)||Full Frame||24.4||6048||4032||no||23.8||12.2||1415||79|
|Sony A900 (⇒ lft | rgt)||Full Frame||24.4||6048||4032||no||23.7||12.3||1431||79|
Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture 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. The two cameras under review 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 A99 (2400k vs 2359k dots). The adjacent table lists some of the other core features of the Sony A99 and Sony A7 along with similar information for a selection of comparators. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Sony A99 (⇒ rgt)||2359||YES||3.0||1229||full-flex||no||8000||6.0||no||YES|
|Sony A7 (⇒ lft)||2400||no||3.0||1230||tilting||no||8000||5.0||no||no|
|Canon 6D Mark II (⇒ lft | rgt)||optical||YES||3.0||1040||swivel||YES||4000||6.5||no||no|
|Nikon D610 (⇒ lft | rgt)||optical||YES||3.2||921||fixed||no||4000||6.0||12||no|
|Sony A9 (⇒ lft | rgt)||3686||no||3.0||1440||tilting||YES||8000||20.0||no||YES|
|Sony A99 II (⇒ lft | rgt)||2400||YES||3.0||1229||tilting||no||8000||12.0||no||YES|
|Sony A7R II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7S II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7 II (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||YES|
|Sony A7S (⇒ lft | rgt)||2400||no||3.0||921||tilting||no||8000||5.0||no||no|
|Sony A7R (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||4.0||no||no|
|Sony A77 (⇒ lft | rgt)||2359||YES||3.0||921||full-flex||no||8000||12.0||12||YES|
|Sony A850 (⇒ lft | rgt)||optical||YES||3.0||922||fixed||no||8000||3.0||no||YES|
|Sony A900 (⇒ lft | rgt)||optical||YES||3.0||922||fixed||no||8000||5.0||no||YES|
Both the A99 and the A7 have been discontinued, but can regularly be found used on ebay. The A99 was replaced by the Sony A99 II, while the A7 was followed by the Sony A7 II.
So how do things add up? Is the Sony A99 better than the Sony A7 or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Sony Alpha SLT-A99:
- Easier setting verification: Has an LCD display on top to control shooting parameters.
- More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
- Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (500 versus 340) on a single battery charge.
- Sharper images: Has hand-shake reducing image stabilization build-in.
- More heavily discounted: Has been on the market for longer (launched in September 2012).
Arguments in favor of the Sony Alpha A7:
- Better low-light sensitivity: Can shoot in dim conditions (0.5 stops ISO advantage).
- More detailed viewfinder: Has a higher resolution electronic viewfinder (2400k vs 2359k dots).
- More compact: Is smaller (127x94mm vs 147x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 338g or 42 percent) and is thus easier to take along.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- More affordable: Was introduced into a lower priced category (39 percent cheaper at launch).
- More modern: Was introduced somewhat (1 year and 1 month) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the A7 comes out slightly ahead of the A99 (7 : 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.
In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the A99 or the A7 handle or perform in practice. 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. 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. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Sony A99 (⇒ rgt)||-||84/100 Gold||4.5/5||reviewed||4.5/5||2012||2,799||discont.||check|
|Sony A7 (⇒ lft)||HiRec||80/100 Silver||5/5||4.5/5||5/5||2013||1,699||discont.||check|
|Canon 6D Mark II (⇒ lft | rgt)||Rec||80/100||4.5/5||4/5||4/5||2017||1,999||latest||check|
|Nikon D610 (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,999||latest||check|
|Sony A9 (⇒ lft | rgt)||..||89/100 Gold||5/5||5/5||5/5||2017||4,499||latest||check|
|Sony A99 II (⇒ lft | rgt)||-||85/100 Silver||4.5/5||4.5/5||4.5/5||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||HiRec||90/100 Gold||5/5||4.5/5||5/5||2015||3,199||discont.||check|
|Sony A7S II (⇒ lft | rgt)||Rec||-||4.5/5||5/5||5/5||2015||2,999||latest||check|
|Sony A7 II (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||5/5||2014||1,999||latest||check|
|Sony A7S (⇒ lft | rgt)||-||86/100 Gold||4.5/5||4.5/5||5/5||2014||2,499||discont.||check|
|Sony A7R (⇒ lft | rgt)||HiRec||82/100 Gold||4.5/5||5/5||5/5||2013||2,299||discont.||check|
|Sony A77 (⇒ lft | rgt)||91/100||81/100 Silver||-||4.5/5||5/5||2011||1,999||discont.||check|
|Sony A850 (⇒ lft | rgt)||-||75/100||-||4/5||4.5/5||2009||1,999||discont.||check|
|Sony A900 (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||4/5||5/5||2008||2,999||discont.||check|
The review scores listed above should be treated with care, 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, please note that some of the review sites have changed their methodology and reporting over time.
If you would like to see a different side-by-side camera review, 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. If the camera you are interested in is not available, please contact me, and I will try to locate and add the respective data to the application.
- Canon 77D vs Canon 200D
- Canon 77D vs Canon T7i
- Canon 80D vs Canon 70D
- Leica TL2 vs Canon 77D
- Nikon D500 vs Nikon D5500
- Nikon D500 vs Nikon D750
- Nikon D5500 vs Nikon D5300
- Olympus E-M1 II vs Sony A7R II
- Panasonic G9 vs Olympus E-5
- Sony A6500 vs Canon G1 X Mark III
- Sony A9 vs Canon 5D Mark III
- Sony RX100 II vs Canon G7 X