Hasselblad H1D - Manual (Page 42)

42 43 Hasselblad H1D Hasselblad H1D
The H1D can be used untethered or tethered. ‘Untethered’ means that the camera is con-
nected only to its Image Bank which acts as an image storage facility and power supplier to
the sensor unit ( the camera body, viewfinder and lenses take their power requirements from
the batteries in the grip). ‘Tethered’ means that the combined camera and Image Bank are
connected to a computer.
The Image Bank then controls the communication between the sensor unit and the computer
as well. The Image Bank can store up to 850 shots at full resolution on its hard disk to be trans-
ferred to a computer later. The link cable connects the sensor unit on the camera to the Image
Bank. The fire wire cable connects the Image Bank to the computer.
The sensor unit houses a light-sensitive element called an area array CCD (charge coupled
device), which acts as computer-readable electronic ‘film’. The surface of the CCD has 22 mil-
lion light- sensitive areas, each of which creates a pixel in your final digital image. In a colour
digital image each pixel has three colour components: red, green and blue (abbreviated RGB).
The pixels in the sensor unit’s CCD are filtered to create three images – one of each colour
– which are later combined by the software to create a single full colour image.
When using the camera untethered, the built-in digital light meter, with full histogram display
and audio exposure warnings, helps to ensure a perfect exposure.
When using the camera tethered in a studio you can control all the digital aspects of cam-
era operation from your computer using the FlexColor image capturing software. See the
“FlexColor Software Reference” manual for details.