Sony A7III or Sony A9? One costs almost twice as much as the other. But is it twice as good? Here is a short comparison of two cameras.
The Sony A7III debuting today is one of those cameras that can be said to be a hit when released. The Sony A7II changes in relation to the one were really big, and the ones we see in the top three seem to be even bigger. It's a camera that has virtually everything. That is why the question arises as to how it falls on the background of the Sony A9 – the top manufacturer's camera, which costs almost twice as much.
Full frame matrix, same AF
Both models have a full frame matrix made by the manufacturer in the latest technology. The resolution in ou cases is the same, that is 24 megapixels. We can find a higher resolution only in the A7RIII model. However, the producer boasts that the BSI CMOS Exmor R matrix with a dynamic range of 15 EV is used in the new model. If we really get such a wide tonal range, we can expect really great quality images. Does the matrix in A9 offer a similar range? It is difficult to judge me on the basis of the test – in A9 the tonal dynamics is really great, but it's possible that in A7III it will be even better.So let's look at another important issue from the photographer's point of view – the sharpening system. The Sony A9 features an excellent 693-point AF system with phase detection . Exactly the same system can be found in the Sony A7III. As for the matrix, it is similar to its stabilization – in both cases we get an efficient, 5-axis 5-volt system. So here also we will not find major differences between the two models.
In serial mode, A9 wins
The Sony A9 is a typical event engine whose fastest side is speed. The model also uses, among others, a silent shutter, the solution is still innovative. In addition, the viewfinder in this model has been designed in such a way that virtually eliminates the phenomenon of "blackouts" that may occur in serial mode. In terms of speed, the camera is still unbeatable.We can take up to 20 photos per second in full resolution. It is worth noting that the buffer will hold up to 241 RAWs or 362 JPGs in one series. The Sony A7III will take half as few pictures in a second, hence 10, and in one series the buffer will save 117 JPEG and 89 RAW files. This is a significantly smaller result, so A9 definitely wins from this angle.
Movie mode on the A7III side
One of the problems with Sony A9 is the movie mode, although it may be a big word. The fact is that the manufacturer gives only the necessary basics and nothing more than that. So we will find 4K mode at 30fps and Full HD slow-motion mode of 120fps. A big surprise for everyone was depriving the camera of film profiles , including logarithmic ones.for A7III, the frame is similar – 30 frames per second in 4K mode and 120 in Full HD. For more we have to wait until the Sony A7SIII premiere. For now, however, this is enough for us, because the lack of more frames in 4K does not hurt so much, at least not me. However, it should be noted that in this model we can find all movie modes, including S-Log. The HLG (Hybrid Log-Gamma) profile profile is a completely new feature that will allow you to create HDR movies . This solution can also be found in the latest Panasonic GH5S. Microphone or headphone inputs are obvious in both cases, and the movie mode itself looks the same. However, for the presence of cinema profiles, the point for A7III.
The external appearance and battery issue
Both models differ significantly in terms of construction. The similarity is that in both cases we get a focus joystick – a solution useful when using the viewfinder but also from the screen in A9. Because here we find another difference. The Sony A7III display has a very useful touch function that you can not find in A9 in vain. Again a plus for sevens. There are definitely more buttons and knobs on the A9 body – after the model you can see that it is typically professional. And probably more of them have an impact on better work comfort. However, in A7III we still get the most important knobs for setting key functions, and the touch screen can often affect the comfort of work more than a few extra buttons. However, in both cameras we find such a useful second input to the memory card.Let's lean over the battery. The Sony A9 was the first model in which the manufacturer fought against this topic, which is an unmistakable series. The new A7III took care of placing the most efficient battery on the market, as guaranteed by the manufacturer. It is to ensure over 700 photos on a single charge . If it really does, then we have another important feature in favor of the new model.
More expensive is better?
Looking at the specifications of both models, I really do not notice such a big difference between them as the price would suggest. On the contrary, many features from my point of view speak for the Sony A7III – a better movie mode, a more efficient battery, a touch screen, possibly a wider dynamic range. At almost half of the price, the A9 offers practically similar possibilities . We will pay less than 10,000 for A7III, while Sony A9 currently costs almost 20.Taking this into account, I think I would rather buy a cheaper A7III and for the rest of the money complete the greenhouse – just 3 good lenses are enough. So it looks like Sony today presented a camera that can "plow" competition and even competition from … Sony. If the manufacturer can release such a successful model, I'm afraid of what we'll get in the A7SIII, which is the most-anticipated. But most people are afraid of Panasonika. In any case, the camera market is getting more and more interesting, and SLR cameras get stronger and stronger competitors.