Looks in the dark: With very high light sensitivity and videos in top quality, the Sony Alpha 7S convinced II practice test of ULTIMATE TECH NEWS.
Mith the alpha-7 series has landed a real hit Sony: The combination of full-frame sensor and a small cabinet brought the camera series a lot of fans. Meanwhile the second generation model at the start. The specialist for low-light shooting is the Alpha 7S II. ULTIMATE TECH NEWS has sent them to the practice test.
Super Light sensitive
The image sensor is not a completely new development. He put in a similar form to the previous model Sony Alpha 7S and has a resolution of 12 Megapixels (4240×2832 pixels).This corresponds to the resolution of the Apple iPhone 6S, many Smartphones and most compact cameras have more megapixels. But the low resolution has a tangible advantage: The individual photocells are significantly larger and collect more light. When it gets dark, the photographer must attach no flash, but simply turns on the ISO setting.Even in automatic mode, the Alpha 7S II up to 12,800 ISO, but are larger quality losses.Manual is much more extreme values can be set. Only at ISO 409 600 is closing, but then with visible poorer picture quality. Who holds back a little, gets ISO 25,600 or 51,200 pictures that look really good – without hours of post-processing programs such as Adobe Photoshop CC & Co.
Films for professionals
Who II is filming with the Alpha 7S, can choose between two variants: APS-C or full frame. In full-frame camera uses the entire width of the sensor and crops the image just above and below because of the different aspect ratio (16: 2 when photographing: 9 instead of 3) slightly. The APS-C mode is only available for videos in Full HD. The camera then uses only a portion of the sensor, which leads to an approximately 1.5-fold increase in focal length. This can be exploited to further zoom in on distant subjects or to film with lenses from the E-series, which were developed for the smaller APS-C sensor format.
Memory Card Gourmet
Like the Sony Alpha 7R II is also the Alpha II 7S is very picky on what SD cards it receives video. 4K video it records only on SDXC card, the maximum data rate can only be used when the SD card of the U3 specification. Annoying, because current class-10 or U-1 cards are usually fast enough to accommodate the enormous amounts of data. Infected once the correct memory card in it, convinced the Alpha 7S II 4K videos in top quality: The shots are extremely detailed. Contrasting motifs are the camera with fine gradations again. Main difference from the Alpha 7R II: The higher light sensitivity of the sensor provides in the Alpha 7S SII for less disturbing image noise when you’re shooting in very low light. If you like action films, but should consider whether he does not prefer it receives in Full HD. Because in 4K films the Alpha II 7S like most current cameras with a maximum of 30 frames per second. This makes for fast movements or camera movements for slightly blurred shots. With Full HD on the other hand also 100 or 120 frames per second are possible – ideal for slow motion videos.
Something brisk sharp
The auto focus of the Alpha 7S II operates as its predecessor with 25 focus points and contrast measurement. The auto focus reacts quite fast in single shots, especially with the specially developed for system cameras FE lenses and in good light. With larger distance adjustments you realize that the autofocus goes briefly about the actual point of focus and then to the right attitude goes back – typical of the contrast measurement method. On the faster phase-change procedure as in the Sony Alpha 7 II and the Alpha 7R II one must unfortunately refrain. This is in dim light a drawback: Since the contrast auto focus of the Alpha 7S II slowed noticeably. Then you should to focus with open aperture to give the auto focus as much light. Annoying: The displacement of the measurement point is rather inconvenient: First press the C2 key, then specify the desired point with the two upper dials. Slightly faster it goes, if you put the key in the selection wheel on the back “Select AF” on the menu. But that still takes longer than on the Cross rockers or mini joystick of professional DSLR competition – a disadvantage of action photos.
New camera, old lenses
Older DSLR lenses for A-mount can be personalized with the adapters Sony LA-EA3 andLA-EA4 connect. Who wants to buy a new adapter, you should take the LA-EA4. That’s more expensive, but has for an auto focus sensor module with phase-change measurement. In practice test the camera using the LA-EA4 and the Super-telephoto zoom presented Sony 70-400mm 1: 4.5-5.6 G SSM II pretty fast sharp, but did not reach the pace of a professional DSLR: Da are the top models such as the Nikon D4S, yet noticeably faster, especially when tracking the focus when the subject is moving.
As with the Alpha 7 II and the Alpha 7R II Sony has revised the housing of Alpha 7S II. The Mark II models differ from the first alpha-7 series by a considerably larger handle which provides more grip. Also new: The Image Stabilization in the housing. One advantage, if there is no image stabilization in the lens inserted, such as when high-intensity Sony Zeiss Sonnar T * FE 55mm 1: 1.8 or older DSLR or Leica-M lenses that can be used via an adapter on the Alpha II 7S. Adapters are plentiful, for purely mechanical adapter, such as for the Leica M or Nikon, you have to expect about 90 to 150 euros. Adapter with electronic data transfer between the camera and lens are significantly more expensive.The Canon adapter for example, costs around 450 euros. For this can be used with the adapter also expensive Canon lenses with auto focus. An overly high auto focus speed can not be expected, however, the combination DSLR lens and contrast auto focus works more comfortably
Remote control via WLAN
Like most new cameras comes the Alpha 7S II with Wi-Fi. Furthermore they can be controlled via app. This works with Apple – and Android equipment, with the latter even without typing the password. With a corresponding smartphone is camera phone also can be coupled via the short wireless technology NFC. For the operation in the studio practice: A remote control via WLAN is also possible with the computer. Appropriate software is available for Windows and OS X.
Typical System Camera: The Sony Alpha 7S II image sensor always consumes power. In addition, the electronic viewfinder or the display must be switched on – otherwise the photographer sees nothing. This empties the battery quickly when recording still images. After 200 to 250 images is final. In contrast, series 600 to 800 images are in it.Professional DSLR photographers because only smile: Here are 2,000 individual images with one battery charge not uncommon in our series you like even 3,000 and more photos. Fortunately Sony packs two batteries and two chargers in the box of Alpha 7S II: a conventional model to charge the battery at the socket, and a smaller USB variant which charges the battery in the camera.