Sony A7s Ultimate tool for the amateur astronomer?

Looking for low noise camera without the hidious looking cooling blocks behind it? than the sony A7s is the camera you have been waiting for..

FEATURES

Picture of α7S E-mount Camera with Full-Frame Sensor

12.2 MP 35 mm full-frame sensor gives top image quality

A huge 35 mm full-frame sensor offers 50 times more surface area than in conventional compact camera sensors. The larger surface area means vastly better sensitivity for low-light shooting as well as fine control over depth of field. Paired with great optics, Sony’s full-frame sensor is ideal for creative, commercial, and landscape photography.

Ultra-high sensitivity up to ISO 409600

Expand your still and movie capabilities with ultra-high sensitivity from ISO 50 to 409,600 for still images and 100 to 409,600 for movies. High ISO lets you shoot without unnatural flash illumination and use faster shutter speeds (to freeze motion) even in low light—ideal for sports on overcast days.

Picture of α7S E-mount Camera with Full-Frame Sensor

BIONZ® X for superior detail and texture

Everything a digital camera needs to convert light captured by its sensor into a beautiful digital photograph. The engine that powers this conversion is just as important as the lens and high-resolution sensor—so Sony developed the remarkable BIONZ®(tm) X processor. It gives you more natural detail, more realistic images, richer tonal gradations, and lower noise when shooting either photos or movies.

Picture of α7S E-mount Camera with Full-Frame Sensor

High-quality video with the XAVC S format

The high-bitrate XAVC S format is for videographers ready to take their work to the next level. Delivering incredible quality, XAVC S is built from the XAVC format used by professional moviemakers and broadcasters and uses intelligent data compression to offer consumer-friendly editing and file sizes.

Multiple recording formats provide video versatility

Shoot to suit, with a range of video formats available. Capture using the high-bitrate AVCHD or XAVC S codec for editing and playback on big screens; or choose MP4 mode for quick uploading and sharing. Capture motion at up to 24p frame rates for dramatic slow motion effects.

Picture of α7S E-mount Camera with Full-Frame Sensor

Full-frame moviemaking capability

Professional-quality moviemaking in the palm of your hand. Capture stunning images, even in low light thanks to the premium Exmor® CMOS sensor. Then enjoy the flexibility to add external audio capture plus off-board video monitoring and recording, all designed to put professional creation within the reach of all.

Clean HDMI output

Monitor and capture uncompressed video using the clean HDMI output. Simultaneously record video to onboard memory cards in playback-friendly compressed formats, as well as to an external recorder in your choice of formats and bitrates, for ultimate professional production flexibility.

Professional gamma setting

S-Log2 is a proprietary Sony gamma setting featured in commercial video equipment and incorporated here. Invaluable to professionals seeking postproduction flexibility, this preset Picture Profile offers up to 14 stops of dynamic range—enough latitude to capture all the detail in both deep shadow and bright sunlight.

Pro-level time code and user bit video functions

An essential tool on multi-camera shoots, timecode dramatically speeds up editing when several cameras need to be synchronized. Record Run, which advances timecode only while recording, and Free Run, with continuous timecode advancement, are supported. In addition, the User Bit feature lets you add identifying information (such as scene and take numbers) alongside the timecode.

Picture Profile for preshoot settings

Fine-tune the look of your movies before shooting by adjusting gradation (black level, gamma, and black gamma), color (color mode, intensity, color tone, and depth), basic color (gamma and color mode), and more. Save adjusted parameters along with other settings as a profile. Store up to seven profiles for later use.

120 fps at HD resolution for super slo-mo video

When shooting movies in Super-35 mm equivalent (APS-C) crop mode, this camera supports 120 fps high-frame-rate shooting at HD resolution (1280 x 720 pixels). This remarkable capability broadens your expressive options because movie shots at this frame rate can be played back at 24p to create stunning 5x slow-motion effects.

Enhanced Fast Hybrid Autofocus captures action

Enhanced Fast Hybrid Autofocus (AF) consists of a number of features: Phase-detection AF (bringing the subject into focus), contrast-detection AF (fine-tuning focus points), and Spatial Object Detection (which estimates subject movement). They all work together seamlessly to let you capture a fast-moving subject with perfect sharpness.

Picture of α7S E-mount Camera with Full-Frame Sensor

See settings with the XGA OLED Tru-Finder

Preview your camera settings and effects in real time even when using the viewfinder. Unlike optical viewfinders, you can compose black-and-white photos or preview exposure adjustments before pressing the shutter. Plus, features like 100% frame coverage, wide viewing angle, information display modes, peaking function, and focus magnification significantly enhance how you shoot.

Complete antidust system

To keep your photos blemish free, an antidust mechanism vibrates ultrasonically whenever you switch off the camera, removing any particles adhering to the image sensor. Also, an antistatic coating helps prevent dust from settling on the sensor during lens changes.

Picture of α7S E-mount Camera with Full-Frame Sensor

Tilting LCD screen for flexible composition

High-resolution screen that tilts to allow perfect framing of otherwise impossible overhead or low-angle shots.

Audio recording and monitoring functions

During movie recording and playback, you can directly monitor sound using the built-in headphone jack. On-screen audio level monitoring is also available, or connect to professional microphones and audio mixers with the optional XLR terminal adapter kit.

High dust and moisture resistance3

Durability-enhancing methods are engineered into the design, including sealing around the buttons and dials and a protective double-layered body structure that tightly interlocks panels and components.

Substantial, ergonomic grip

The α7s is 25% less bulky than leading DSLRs, but still features a full-size grip for all-day shooting comfort.

Picture of α7S E-mount Camera with Full-Frame Sensor

Strong and light magnesium alloy body

Thanks to magnesium alloy, the world’s lightest structural metal, the α7s weighs 17.25 oz with battery—far lighter that other high-performance cameras—but has the durability for years of performance.

Picture of α7S E-mount Camera with Full-Frame Sensor

See your options: Quick Navi Pro and custom buttons

Quick Navi Pro displays all major shooting options on the LCD screen so you can rapidly confirm settings and make adjustments as desired without searching through dedicated menus. Button customization lets you shoot just the way you like, with frequently used functions assigned to the customizable buttons of your choice.

Picture of α7S E-mount Camera with Full-Frame Sensor

One-touch remote and one-touch sharing

One-touch remote lets you use your smartphone or tablet as a viewfinder and remote control for a digital camera, and one-touch sharing lets you transfer your photos and videos from your camera. Either way, by installing PlayMemories Mobile app to your NFC enable Android smartphone or tablet, you can avoid complex set-up sequences and establish wireless connection simply by touching your device to the camera. You are now ready to control your camera from your smartphone to take a photo from a previously out-of-reach spot, or simply be in your own group shot, as well as transfer them instantly to your smartphone for sharing on SNS. No NFC? No problem. You can also pair the devices manually.

Find compatible devices

Picture of α7S E-mount Camera with Full-Frame Sensor

Supported in Capture One Express (for Sony)

Capture One Express (for Sony) is one of the world’s best RAW converters, rendering precise colors and incredible detail. It contains flexible digital asset management, all the essential adjustment tools, and fast, responsive performance in one customizable and integrated solution. * Please direct all inquiries on purchase, usage, and support on Capture One solutions to Phase One.

Telescope connection

Connection to your telescope is done through “normal” adapters. For the Sony A7s for example you need : T2-NEX

T2 Adapter Sony Nex / E-mount

It will exept all T2 pieces on top.

Software

Looking for software to connect? no problem. The sony software is capable of handling all your request through their own software delivered with the camera.

Here is a screenshot: 

connection to other astronomy software : PHD max from this author (bottom of page is english)