CAMERAS Sony SLT A99II

Sony SLT A99II

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Sony SLT A99II

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Sony SLT A99II: 12 frames per second with 42 megapixels – New SLT flagship Sony Alpha 99 II unveiled

Fans of Sony’s SLT technology had to wait a long time for a successor model to the Alpha 99. Now the time has come with the Sony Alpha 99 II. As expected, the back-illuminated full format CMOS sensor with 42 megapixel resolution is used, which also delivers 4K video. In addition, the Alpha 99 II gets the autofocus of the Alpha 77 II, a somewhat unusual innovation from the bottom up. Impressive are the twelve continuous shots per second at full resolution including AF and AE tracking, which is only possible thanks to SLT technology and a newly developed shutter.

The new Sony Alpha 99 II uses the back-illuminated full-frame CMOS sensor with 42.4 megapixels resolution and copper wires familiar from the Alpha 7R II. [Photo: Sony]

The rear screen of the Sony Alpha 99 II can be moved flexibly. The 0.78x magnification viewfinder provides a resolution of 2.36 million pixels. [Photo: Sony]

The Sony Alpha 99 II has a classic information display on the upper side. [Photo: Sony]

In the Alpha 99 II, Sony combines the best technologies from the SLT-A77 II and the Alpha-7-II family and even puts one on top. The CMOS image sensor with 42 megapixels in full format is already familiar from the Alpha 7R II. It not only uses back-illuminated technology for better light yield, but also uses copper wires instead of conventional aluminum wires, which is what makes the high speed possible in the first place. For image stabilization on five axes, this sensor is movably mounted so that each attached lens benefits from exposure times that are up to 4.5 f-stops longer than without image stabilizer. By the way, the stabilizer is also fully functional during video recording. These are carried out in maximum 4K resolution with 30 frames per second, a premiere in the A-mount cameras.

The Sony Alpha 99 II has a 79-point and a 399-point autofocus and, thanks to SLT technology, can track the autofocus at 12 continuous frames per second. [Photo: Sony]

Thanks to the SLT technology with its semi-transparent mirror, the beam path is split. Much of the light falls on the image sensor through the fixed, semi-transparent mirror, but a small amount of light is deflected to the phased autofocus module, which operates with 79 autofocus points and can operate at up to -4 EV. In addition, there are 399 phase AF points integrated on the image sensor, which cover a much wider image area, and of course contrast-type AF. Thanks to SLT technology, fast phase AF is also available during continuous shooting, allowing the camera to follow the subject and keep it in focus at all times. Despite the 42.4 megapixel high resolution, twelve continuous images per second are possible. Sony has developed a new mechanical shutter especially for this purpose, which is also extremely durable with 300,000 releases. The fastest shutter speed is 1/8,000 second and the flash sync speed is 1/250 second. By the way, the high continuous shooting rate allows the camera to hold out for 54 raw shots.

The robust housing is made of a magnesium alloy and protected against dust and splash water. Sony was also able to shrink the case of the Alpha 99 II to the dimensions of the Alpha 77 II, which increases portability. The handle should nevertheless be very ergonomic. The rear screen has very flexible joints and can therefore be used from all conceivable perspectives. The 7.5-centimeter display has a resolution of 1.23 million pixels, but it is not a touch screen. If desired, the screen can be folded upside down to the camera for protection. The electronic viewfinder resolves 2.36 million pixels and offers 0.78x magnification. The Alpha 99 II also has an info display on the top of the camera.

The Sony Alpha 99 II has numerous interfaces, such as a microphone input, a headphone output, USB or 4K-HDMI. Wireless communication is possible thanks to NFC, WLAN and Bluetooth. [Photo: Sony]

The Sony Alpha 99 II’s housing is more compact than that of the previous model and has an ergonomic handle. The card slot on the side of the unit accepts two SD or Memory Stick cards. [Photo: Sony]

The memory card slot holds two memory cards of either SD or Memory Stick type. The user can, for example, save raw and JPEG images separately if desired. The newly developed user interface should offer a much improved, clearer menu. The new front multi-controller can also be assigned various functions, for example to control the aperture or ISO sensitivity. Sony also wants to have improved the PC remote control (tethered shooting).

Among the numerous connections are the microphone input, a headphone output, a 4K HDMI interface, the flash sync connector, the DC power input and of course USB. A portrait handle can also be connected. In addition, the Alpha 99 II is equipped with NFC, WLAN and Bluetooth 4.2 LE for wireless communication and can be operated remotely via app or transfer the images to a smartphone or tablet. The camera functionality can also be expanded with PlayMemories apps, some of which are available free of charge, others for a fee.

Sony Alpha 99 II (SLT-A99 II) Datasheet

Electronics

Sensor CMOS sensor 36.0 x 24.0 mm (crop factor 1.0
)43.6 megapixels (physical) and 42.2 megapixels (effective)
Pixelpitch 4,5 µm
Photo resolution
7.952 x 5.304 pixels (3:2)
7.952 x 4.472 pixels (16:9)
5.168 x 3.448 pixels (3:2)
5.168 x 2.912 pixels (16:9)
3.984 x 2.656 pixels (3:2)
3.984 x 2.240 pixels (16:9)
Panorama Sweeping panorama
12.416 x 1.856 pixels
5.536 x 2.160 pixels
8.192 x 1.856 pixels
3.872 x 2.160 pixels
Image formats JPG, RAW
Color depth 42 bits (14 bits per color channel)
Metadata Exif (version 2.3), DCF standard (version 2)
Video resolution
3.840 x 2.160 (16:9) 30 p
3.840 x 2.160 (16:9) 25 p
3.840 x 2.160 (16:9) 24 p
3.840 x 2.160 (16:9) 24 p
3.840 x 2.160 (16:9) 24 p
1.920 x 1.080 (16:9) 120 p
1.920 x 1.080 (16:9) 120 p
1.920 x 1.080 (16:9) 100 p
1.920 x 1.080 (16:9) 60 p
1.920 x 1.080 (16:9) 60 i
1.920 x 1.080 (16:9) 50 p
1.920 x 1.080 (16:9) 50 i
1.920 x 1.080 (16:9) 30 p
1.920 x 1.080 (16:9) 25 p
1.920 x 1.080 (16:9) 24 p
1.920 x 720 30 p
1.280 x 720 (16:9) 25 p
Video format
XAVC S [codec MPEG-4]
AVCHD (Codec H.264)
MP4 (Codec H.264)
Audio format (video) AAC Stereo, LPCM

Lens

Lens mount
Sony AF

Focus

Autofocus mode Phase comparison autofocus with 79 sensors, 15 cross sensors and 64 line sensors, autofocus operating range from -4 EV to 18 EV, contrast autofocus with 399 spot sizes
Autofocus functions Single AF, Continuous AF, Tracking AF, Manual, AFL function, Focus magnifier
Sharpness control Depth-of-field control, depth-of-field button

Viewfinder and monitor

Monitor 3.0″ (7.5 cm) TFT LCD monitor with 1,228,800 pixels, anti-reflective, brightness adjustable, tilts 134° up and 180° down, rotatable 270
Info display additional info display (top) with lighting
Video finder Video viewfinder (100 % field coverage) with 2,359,296 pixels, 0.78x magnification factor, dioptre compensation (-4.0 to 3.0 dpt)

Exposure

Exposure metering Center-weighted integral measurement, matrix/multi-field measurement over 1,200 fields, spot measurement
Exposure times 1/8,000 to 30 s (Automatic
)1/8,000 to 30 s (Manual)
Bulb function
Exposure control Fully automatic, Program automatic (with program shift), Shutter automatic, Aperture automatic, Manual
Exposure bracketing function Exposure bracketing function with a maximum of 5 shots, step size from 0.3 to 3 EV, HDR function
Exposure Compensation -5.0 to +5.0 EV with step size from 1/3 to 1/2 EV
Photosensitivity ISO 100 to ISO 25.600 (automatic
)ISO 50 to ISO 102.400 (manual)
Remote access Remote release, remote control via smartphone/tablet
Scene modes Landscape, Macro, Night Portrait, Portrait, Sunset, Sports/Action, 0 additional scene modes
Picture effects High Key, Miniature effect, Retro, Black and white, Selective colour, Sepia, Monochrome high contrast, Pop colour, Retro photo, Rich monochrome, Game camera, Partial colour (red, yellow, blue, green), Tone separation/posterisation (colour, b/w), Soft focus, 2 additional picture effects
White balance Auto, Cloudy, Sunny, White balance bracket, Fine tuning, Shade, Flash, Fluorescent lamp with 4 presets, from 2,500 to 9,900 K, Manual
Color space Adobe RGB, sRGB
Continuous shooting Continuous shooting function max. 12.0 fps at highest resolution and max. 60 stored photos, up to 54 images RAW or RAW+JPG,
Self-timer Self-timer with 2 s interval, special features: or 10 s (optional)
Recording functions AEL function, AFL function, live histogram

Flashgun

Flash no built-in flash availableShoe
: Sony Multi Interface, standard center contact
Flash range Flash sync speed 1/250 s
Flash functions Flash exposure compensation from -3.0 EV to +3.0 EV

Equipment

Image stabilizer Sensor shift (optical)
Memory
Memory Stick (Duo Pro)
second memory card slot
SD (SDHC, SDXC)
Microphone Stereo
Power supply unit Power supply connection
Power supply 1 x Sony NP-FM500H (Lithium Ion (Li-Ion), 1,650 mAh
)390 pictures
Playback functions Image rotation, Protect image, Highlight / Shadow warning, Playback histogram, Playback magnifier, Image index, Zoom out
Voice memo Voice Memo (AAC Stereo, LPCM format)
Face recognition Face recognition, face recognition (8 faces)
Image parameters Sharpness, contrast, color saturation, noise reduction
Special functions Electronic spirit level, Grid fade-in, Orientation sensor, Live View, User profiles with 3 user profiles
Connections Data interfaces: Bluetooth, USBUSB type
:USB 2.0 High SpeedWLAN
: available (Type: B, G, N)
NFC: available
AV Connections AV output: HDMI output Micro (Type D
)Audio input: yes (3.5 mm stereo microphone jack)
Audio output: yes (3.5 mm jack (stereo, 3-pin)
Supported direct printing methods DPOF, Exif Print, PIM
Tripod thread 1/4″ in optical axis
Housing Splash water protection
Special features and miscellaneous Sensor cleaning function and antistatic coating5 axis image stabilizerFlicker reductionDynamic range optimization

(1-5 steps)
Audio level meterAudio recording levelAuto

Slow ShutterVideo parameters
:

Black level, gamma (film, photo, Cine1-4, ITU709, ITU709 [800 %], S-Log2, S-Log3)
Video color range xvYCC StandardPAL/NTSC selection assistantDouble

recording functionTC/UB
(TC Preset/UB Preset/TC Format/TC Run/TC Make/UB Time Rec)
Autofocus tracking durationAuto
Slow ShutterGamma
Display AssistHDMI output
with maximum 2160p25, 1080p50, 1080i50HDMI Clean outputHybrid AF SystemEye-Fi

compatible

Size and weight

Dimensions W x H x D 143 x 104 x 76 mm
Weight 849 g (ready for operation)

Miscellaneous

standard accessory Sony BC-VM10A Charger for special batteriesSony
NP-FM500H Special Battery Charger for special
batteries
additional accessories Sony AC-PW10 Power SupplySony
HVL-F20M Plug-on Flash with Swivel ReflectorSony
NP-FM500H Special Battery
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Peter Dench
Peter Dench
I am Peter Dench. Digital Photographer, born in London 1972, currently living in Deerfield, near Chicago. I have numerous photography expositions and also working in model photography. In this website, PhotoPoint, I usually review cameras provided by local dealers in Illinois and by the manufacturers. Sometimes I, Peter Dench, review lenses too, but only when I have a suitable camera for them. Please let me know in the comments if I can improve any of these articles.

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