THE INTERCHANGEABLE LENSES
The Hasselblad cameras, except the Super Wide models, have an interchangeable lens and a range of alternative focal lengths is
available. The field of view covered by the standard 80-mm. lens is most suitable for the majority of subjects. For specialized purposes
a greater or reduced field of view has distinct advantages.
Wide-angle Lens
A wide-angle lens is a lens of shorter focal length, it sees and reproduces more of the subject in front of the camera than does the
standard lens.
Such a wide-angle lens has definite advantages in cases where the practicable distance between camera and subject is limited and
insufficient for the standard lens to record the subject in is entirety. The wide-angle lens is, therefore, primarily used for architectural
photography and interiors.
In view of the short focal length, the depth of field covers a particularly wide zone even at full aperture. It can, therefore, be employed
with advantage as a quick-shooting lens for general purposes where accurate focusing or distance-setting would be inconvenient (e.g.
insufficient time).
To get a large image, even of a near object, you have to go really close to it. Near objects then tend to dwarf more distant ones, and
the resulting picture shows pronounced perspective effects. In this way. the wide-angle lens can be used to emphasize perspective.
Telephotography
A tele lens on the other hand has a smaller angle of view than the standard lens. It is of longer focal length, and reproduces less of
the subject in front of the camera than the standard lens does, but on a larger scale.
Such a lens is particularly suitable for subjects that are difficult to approach closely, such as animals, children, architectural detail,
sports events, etc. In photographing distant views without near foreground, it brings the subject nearer. It also permits a greater
camera-to-subject distance in portraiture, producing a more pleasing and subdued perspective. At the same time, its lesser depth of
field concentrates definition on the portrait, avoiding a sharp background which would detract from the main object.
Focusing and Viewing
Focusing with the wide-angle or telephoto is much the same as with the standard lens. The Hasselblad reflex screen enables the image
to be focused accurately; at the same time the screen shows the exact field of view of the particular lens used. There is no parallax
error.
THE HASSELBLAD LENSES
www.mr-alvandi.com
Содержание 1000 F
Страница 18: ...WILD LIFE www mr alvandi com ...
Страница 52: ...THE CUT FILM ADAPTOR www mr alvandi com ...
Страница 54: ...Daylight Exposure Values www mr alvandi com ...
Страница 55: ...Filters for Black and White Film www mr alvandi com ...
Страница 57: ...Colour Temperatures and Light Sources Light Balancing Filter Data Filter Equivalents www mr alvandi com ...
Страница 59: ...Close Ranges with 50 60 mm Distagon and Planar 80 mm www mr alvandi com ...
Страница 60: ...Close Ranges with 120mm S PLANAR 150 200 mm SONNAR www mr alvandi com ...
Страница 61: ...Focusing Ranges with the Extension Bellows Shutter Speeds to Arrest Movement www mr alvandi com ...
Страница 62: ...Conversion of Film Speed Systems Colour Films www mr alvandi com ...
Страница 63: ...Black and White Films www mr alvandi com ...
Страница 64: ...www mr alvandi com ...