Hasselblad 1000 F, Руководство пользователя

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The automatic depth of field indicator fitted to the Hasselblad 500C and Super Wide C consists of two red markers next to the
distance scale. These markers indicate the extent of the depth of field available as shown on the distance scale. The field
automatically becomes narrower on opening the lens aperture, and gets wider on stopping down. The larger the paerture, therefore,
the shallower the zone of sharp focus. Thus with the camera focussed on 25 feet, the depth at f8 will extend from about 15 to 50
ft. (top right); at f16 it will cover a range from 12½ ft. to infinity (bottom). The depth also depends on the actual distance focused
(it is less with closer subjects) and on the focal lenght of the lens. Longer focus lenses yield reduced depth of field. Every lens
however carries its own depth of field indicator which automatically allows for that.
The Hasselblad 1600F, 1000F, and the original Super Wide have a depth of field scale engraved on the lens mount next to the
distance scale. This indicates the depth by means of index lines numbered to correspond to the lens apertures (top left).
WORKING IN HOT CLIMATES
High and widely varying temperatures with low humidity, as occur in desert regions and dry seasons, and very high humidity in rainy
seasons, call for special precautions to protect the life and continued good performance of the camera. These conditions also cause the
growth of moulds on organic matter. Sand, dust and insects may present problems.
The camera should be kept dry and clean. Leather parts should he wax polished, metal parts lightly greased. Never leave the camera
unnecessarily exposed to heat. Always keep it in its case, The lens should be covered with a lens cap when not in use; additionally, it
should be protected by a colourless filter. Outer lens surfaces have to be kept clean, dirt and grit removed with an air-blower and by
tapping. Wipe the lens surface with cotton wool or open mesh fabric (butter muslin), when required.
Store photographic equipment in an airtight metal box or a tin which should be scaled with adhesive (e. g. medical) tape. In a humid
atmosphere, add some desiccating agent, e.g. silica gel.
Condensation on the lens may occur when the camera is moved from a cool place into humid heat; this has to be removed before use
and the whole camera carefully wiped before re-storing.
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