Sony Alpha A9 Review - The Best DSLR Camera?!


 Sony's Alpha A9 is a new flagship mirrorless camera with a 24 Megapixel full-frame stacked CMOS sensor and fully electronic shutter featuring 20fps shooting, silent vibration-free operation, anti-distortion shutter, 1/32000 shutter, 4k video, dual SD slots, bigger battery, touchscreen and AF joystick.




 The Sony Alpha A9 employs a fully electronic shutter to allow fast, silent and vibration-free shooting, shutter speeds up to 1/32000, and electronic composition with no blackout. Meanwhile faster speeds allow the Alpha A9 to deploy an anti-distortion shutter which claims to eliminate rolling shutter artefacts which have previously plagued electronic shutters.

 The embedded phase-detect AF system features 693 AF points spread across 93% of the frame, and operates at 60fps; Sony describes the AF speed as 25% faster than the A7r II.

That's right, a mirrorless camera targeted at professional and sports photographers - a strike at the DSLR's area of greatest strength. Olympus has pushed in this direction with its E-M1 Mark II, but Sony is promising both super-fast readout and full frame image quality, backed up with an expansion of its Pro Support scheme that will be needed to break into the pro market.

Sony Alpha A9

 This is ambitious stuff. All this capability stems from a stacked CMOS image sensor, which includes processing circuitry nearer the pixels and features built-in memory to deliver all this data to the off-board processors at a rate they can cope with. It's this structure that enables the camera to shoot at 20 frames per second and do so with an electronic shutter that's fast enough to minimize the rolling shutter effect.

 The fast readout also allows 60 AF/AE calculations per second, promising better subject tracking and prediction.

Sony Alpha A9 Camera Specs:

Alpha A9 features:

  • 24MP Full Frame Stacked CMOS
  • 20 fps continuous shooting with full AF (electronic shutter, 12-bit files)
  • Continuous shooting buffer of up to 241 compressed Raw files (362 JPEG)
  • 10 fps continuous shooting with AF when adapting lenses
  • 5.0-step 5-axis image stabilization
  • 3.7m dot OLED viewfinder (1280 x 960 pixels) with up to 120 fps update
  • 1.44m dot rear touchscreen LCD
  • Oversampled UHD 4K/24p video from full sensor width (1.24x crop for 30p)

Sony Alpha A9 Review - The Best DSLR Camera?!

 Sony Alpha A9 Design and controls:
 The Alpha A9 is unmistakably recognizable as a Sony mirrorless camera, sharing many design characteristics with the earlier A7 Mark II series bodies. But thankfully Sony has responded to criticisms and feedback over those models, enhancing a number of physical aspects from controls to storage and power to connectivity.
 Measuring 127x96x63mm and weighing 673g including battery, it’s extremely close in size and weight to the A7r Mark II – indeed the same width and height, less than 50g heavier, and only a few millimeters deeper. The additional weight and depth is almost entirely down to the new battery and the grip which accommodates it, more about which later.


 In your hands it unsurprisingly feels a lot like the A7r Mark II: compact but solid with enough of a grip and thumb rest to hold it securely and sufficient use of rubber surfaces to prevent slippage. Sony’s upgraded the build quality a little with greater use of magnesium alloy (now also in the grip), as well as employing six rather than four screws on the lens mount to better-handle large lenses. In terms of weather-proofing, Sony describes the A9 as being dust and moisture resistant, although wouldn’t be drawn over specifics or whether it was superior to the A7 Mark II series in this regard. Judging from the body and in particular the port doors, I’d say it’s essentially the same as the A7 Mark II bodies in terms of sealing; the flimsy port doors remain a potential weak spot with fiddly plastic flaps that clip into place, although at least the new memory card door seems fairly substantial.
Sony Alpha A9 Review - The Best DSLR Camera?!
 Compared to other mirrorless bodies, I’d say Olympus still comes across as most confident against the elements with the OMD EM1 Mark II, and the company is happy to demonstrate it receiving significant splashes of dirt and water. But of course Sony isn’t pitching the A9 against the EM1 Mark II; with an asking price of over twice the Olympus and professional aspirations to boot, it sees the Canon EOS 1Dx Mark II and Nikon D5 as its peer group.
One look at the 1Dx Mark II or the D5 shows they’re physically completely different beasts. With their built-in portrait grips and giant batteries, both bodies are considerably larger, presenting an almost square front, and weigh over double the A9. For the record, the EOS 1Dx Mark II measures 158x168x83mm and weighs 1340g, while the D5 measures 160x159x92mm and weighs 1405g, making them both wider, deeper, much taller and considerably heavier.
So the Alpha A9 is smaller, lighter, more portable and certainly easier to squirrel-away in a bag or even a large coat pocket. But while the pro Canon and Nikon bodies are considerably heftier, they also feel more physically confident in your hands. I would have to leave each out in a shower to really see for sure, but I’m pretty sure the 1Dx Mark II and D5 are better sealed and more likely to survive a fall or hard knock too. Some photographers will also appreciate their larger grips and find their heft reassuring, especially when coupled with larger lenses. You can boost the A9’s heft by fitting the optional battery grip, but it remains a much smaller camera.
 Round the back there’s been more significant changes. The sloping surface between the vertical rear side and the flat top is now steeper, making it easier to access the buttons. More importantly the C3 custom button now joins the Menu button on the left side to make room for a repositioned movie record button and the very welcome addition of an AF-ON back focus button. While it takes some getting used to the new position for the movie button, I much prefer its new home, and I know pro sports photographers will love having an AF-ON button.
 For me though, the real excitement starts just underneath: a new joystick for positioning the AF area. It’s not quite as pronounced as that on, say, the Fujifilm XT2, but I’m delighted to find it here as it makes positioning the AF area so much easier than clicking through the menus of previous models – and there’s more I’ll describe in a moment.

Sony A9
 Below this is a tilting thumb wheel, but it’s a new design that provides much better clickable feedback than before. No, it’s still not as nice as the more substantial wheels on the back of Canon’s larger EOS bodies, but it’s still a big improvement over the A7 bodies. Indeed the buttons all-round feel better than before, although I feel they could be even larger still and as always I’ll also put in a request for backlit buttons – something that should be standard on any higher-end body in my view.
So, what exactly has changed with the Alpha A9?
The buttons and dials all come with better haptic feedback1. The AF joystick replaces an eternity of clicks when moving the AF point. When you flip the screen out, the eye sensor is disabled, which resulted in fewer missed shots when working at odd angles. Boot-up time is shorter. Battery life is way better.
 The interface is more responsive. I don't get lost in the menus at all anymore. All of these changes add up to a camera that is more transparent, in the sense that it just 'gets out of the way' more than any previous Sony camera I've used, and lets me get on with taking pictures.
Sony Alpha A9 Review - The Best DSLR Camera?!
Even if you don't use the full 20 fps (electronic shutter) burst speed, shooting anything you could want without any intrusive shutter noise (important for delicate moments during, say a wedding reception) without any blackout whatsoever is a revelation.
 Sure, the RX100 V and Olympus E-M1 II both also offer fully electronic shutters and silent operation, but neither has a full-frame image sensor, neither can show you a live view during bursts (only slideshows of images being taken), and the a9 suppresses rolling shutter so ably that it's one more thing that I almost never have to worry about.

Alpha A9 Camera
 I had a big hand in the reviews of Nikon's D5 and Canon's EOS-1D X Mark II, and while the optical viewfinder blackout on both of those cameras is incredibly short, I have to stress that the Sony a9 goes one step further in that it shows no blackout whatsoever. None. This camera makes it easier than ever to simply follow the action, and catch exactly the moment you want.
 An additional plus - this camera has taken the preliminary crown (review units are forthcoming) for the best mirrorless autofocus system I've ever used. We were given the opportunity to photograph hockey, figure skating and a full-on track meet, and the a9 rarely let me down. Watch our site next week, when we'll be able to post actual photos and videos from these events for you to examine for yourself.
Sony Alpha A9 Video Review:
 The Alpha a9's fast readout sensor has huge benefits for video shooting, as well as stills. It allows the a9 to capture UHD 4K video using the full width of its sensor, still with reduced rolling shutter. This means its 24p footage is made up from 6000 x 3376 pixels: oversampling the scene by 1.56x in each direction, for more detailed footage with less risk of moire. 30p footage is oversampled 1.26x in each direction, and comes with a 1.2x crop, but shows less rolling shutter. The camera also has the headphone and mic sockets, and option to fit an adapter for twin XLR mic input.


Sony calls the video footage from the a9 the 'highest 4K movie image quality of any full-frame ILC', which makes it all the more odd that Sony has not included its Picture Profile system of video-targeted tone and color responses, such as S-Log2 and 3, and ITU 709.

Conclusion:

 The A9 is unequivocally a professional camera, with a $4,500 price to match. It’s overkill for consumers, but that doesn’t mean they should dismiss it. The breakthrough technologies of the A9 could trickle down to the A7-series or even less expensive cameras.

 We wouldn’t be surprised if an APS-C stacked sensor is in the works (we know Sony is already working on a stacked sensor for smartphones), bringing more speed to Sony’s A6000-series. As an analyst alluded to us, the A9 may be impressive, but Sony isn’t done yet. And that’s a good thing for photographers of all stripes




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