LCD and Viewfinder
Nikon D3S has a Fixed Type 3" LCD screen with a resolution of 921k dots. Both the screen size and the screen resolution is up to the standards of this class.
D3S has a built-in Optical (pentaprism) viewfinder. The viewfinder has a coverage of 100% and a magnification ratio of 0.7x. 100% coverage ensures that what you see in the viewfinder while shooting matches exactly what you will get later in your image, helping accurate framing your shots and minimizes the need for cropping images later.
Max Shutter speed
Nikon D3S can shoot continuously at max speed of 11 fps
and has max shutter speed of 1/8000 sec
Unfortunately D3S doesn't have a built-in flash but it has a flash shoe for mounting external flashes.
Nikon D3S features both Contrast Detection and Phase Detection autofocus (AF) systems which ensures speed and accuracy of focusing in most situations. The AF system has 51 focus points and 15 of these sensors are of Cross-type. Cross-type sensors locks focus faster and more accurate compared to single type sensors.
With Nikon D3S, you can record your videos at a highest resolution of 1280 x 720 at 24 fps and save in and Motion JPEG formats. 1280 x 720 is a low video resolution by todays standards. If video quality is important for you, we recommend you to look at cameras with Full HD, even better 4K / Ultra-HD resolution
D3S has a built-in Stereo microphone and a None speaker.
Nikon D3S doesn't have any connections for external microphones and headphones. If you need a DSLR camera with external microphone connectivity, consider Nikon D850 or Sony Alpha A99 II in a similar price range.
Connectivity and Storage
You can connect D3S to compatible devices via its HDMI port or USB 2.0 (480 Mbit/sec) port.
Nikon D3S is powered by battery which provides a shooting life of 4200 according to CIPA standards.
Considering that the average battery life of DSLR type cameras is 943 shots, Nikon D3S has a good battery life for its class.
Battery Life Comparison in Pro DSLR Cameras
Nikon D3X with its 4400shots is the model with longest battery life among Pro DSLR cameras. Check the comparison of Nikon D3S vs Nikon D3X or take a look at Longest Battery Life DSLR cameras list.
Nikon D3S Features Compared to Main Competitors
You can download Nikon D3S's User Manual here