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User Manual

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In very simple terms, a digital capture unit holds a light sensitive sensor in place at the film plane.<br />

The electronic signals from the sensor are then processed and stored as a digital file.<br />

As an electronic colour image is made up of three components − red, green and blue which combine<br />

to form a so-called RGB image − the sensor’s task is to convert a multi spectrum light image into<br />

three digital files (red, green and blue) for combination later on.<br />

The H3D II uses a CCD (Charged Couple Device) type sensor that has millions of light sensitive areas<br />

on its surface each of which creates a pixel.<br />

Each pixel in the sensor is filtered to create the three separate red, green and blue files. Software then<br />

processes these electronic files as a package into a Hasselblad 3FR file which in turn is processed in<br />

Phocus to produce Hasselblad 3F files or various other formats such as DNG, TIFF, JPEG etc.<br />

The three components of the image file are later recombined on the computer screen to produce the<br />

familiar full colour image.<br />

31<br />

•<br />

The captured image can be temporarily stored internally on a CF card. Externally, captures can be<br />

stored via a FireWire connection onto a Hasselblad ImageBank-II or onto the hard disk of a computer.<br />

When using the camera tethered in a studio you can control all the digital aspects of camera<br />

operation from a computer using Phocus. See the separate Phocus manual for further details.<br />

As the H3D II is a purely electronic device, attention to power supply is vital. When working untethered<br />

it is therefore important to plan either battery loading or battery replacement to ensure continued<br />

workflow. Likewise, image storage is limited, particularly when using flash cards and appropriate<br />

steps should also be taken when planning a shoot.<br />

•<br />

When attaching and removing the digital capture unit, pay particular attention to the image sensor<br />

area. The sensor itself is covered and protected by a glass IR filter but take great care when handling.<br />

If you need to clean the filter, see later section for specific details. When storing separated from the<br />

camera, always ensure you have replaced the protective cover.<br />

If you scratch or mark the filter in any way, it will show up on every shot. Replacements are expensive<br />

so treat the glass surface with at least as much care as you would a lens.<br />

The sensor itself is not accessible for any kind of cleaning or maintenance by a user. Do not attempt<br />

any such action as you will almost certainly damage it irreparably.<br />

As is the case with all electronic devices pay extra care when working in damp en vironments and<br />

avoid damp conditions for storage.<br />

<br />

Take note of the ways of working you can adopt to improve workflow efficiency. Using batches, naming<br />

batches, IAA etc will speed things up when working on image development in both FlexColor<br />

and Phocus (the Hasselblad image processing software included).

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