Achieving Perfect Exposures in Digital and
Film Photography
DETERMINING EXPOSURE IN DIGITAL IMAGING
The lens settings that provide correct exposure in digital imaging are determined in the same
way as in fi lm photography by using the same metering methods, modes, and approaches sug-
gested in this chapter. You must especially beware of overexposing digital images as this is
diffi cult to improve in the computer. When you work with lighted and shaded subject areas,
where the exposure must be based on one or the other, you are usually more successful
exposing for the lighted areas like you would for transparencies.
Digital imaging with Hasselblad cameras, however, offers valuable advantages over fi lm
photography. You have the opportunity to evaluate the exposure in various ways immediately
after a picture is made and then you have the opportunity to make exposure adjustments
before you take the fi nal picture. While the same possibility of checking exposure is offered
on any Hasselblad camera with instant fi lm, the process is time-consuming and involves
changing the magazine and waiting for the instant fi lm to be processed. With Hasselblad dig-
ital cameras or digital sensor units, you have various, simple ways to check exposure.
First you have the image that you can see on the preview screen immediately after the
exposure is made.This image, however, should only be used as a rough guide, never for evalu-
ating the accuracy of the exposure. The image is too small for this purpose and it is often dif-
fi cult to see a good image in the surrounding light situations. The histogram that also appears
immediately after the exposure is more helpful and accurately shows how the different tones
and brightness values are recorded in the camera and how the values change when exposure
adjustments are made. Being able to see a histogram immediately after every exposure is a
major advantage of digital imaging over fi lm photography. The camera operations necessary
to see the histograms on the display screen and the evaluation of the histogram are described
in detail in Chapter 5 and also later in this chapter.
Hasselblad, H3D, H3DII cameras, and CF and CFV digital sensor units also offer the Instant
Approval Architecture (IAA). This analyzes the shot to see whether it is over- or underexposed
and gives a green signal when the exposure looks satisfactory, a yellow signal when images
need a closer examination, and red for images that are unsatisfactory. These values are stored
15
Содержание Digital Camera
Страница 1: ......
Страница 2: ...The Hasselblad Manual ...
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Страница 165: ...Heidi Niemala Editorial photograph made with a 50mm lens in the basement of a pre Civil War building ...
Страница 166: ...Heidi Niemala Photographed for clothing designer with a 150mm lens ...
Страница 167: ...Heidi Niemala Editorial portrait with a 150mm lens ...
Страница 168: ...Heidi Niemala Photographed with a 50mm lens during a sand storm at White Sands ...
Страница 198: ...Jonathan Exley An attention creating image of mult time Indianapolis 500 winner Helio Castroneves ...
Страница 200: ...Jonathan Exley Lifestyle Designer Kathy Ireland Courtesy of kathyireland com ...
Страница 243: ...Marco Grob Singer Alvin Chea from theTake 6 band photographed with an HC 2 8 80mm lens on an H camera ...
Страница 244: ...Marco Grob A make up test shot made with an HC Macro 4 120mm lens on an H camera ...
Страница 247: ...Marco Grob The Stairs photographed in CapeTown for Glamour magazine with an HC 3 5 50mm lens on an H camera ...
Страница 312: ...Raya High jewlery photograph produced with an HC 3 2 150mm lens on an H camera Raya Photographer ...
Страница 381: ...366 THE HASSELBLAD MANUAL Chart A2 Area coverage in inches with single extension tubes for the 6 4 5 film format ...
Страница 383: ...368 THE HASSELBLAD MANUAL Chart A4 Area coverage in inches with single extension tables for the 33 1 44 2 sensor ...
Страница 385: ...370 THE HASSELBLAD MANUAL Chart A6 Area coverage in inches with combinations of tubes for the 6 4 5 film format ...
Страница 387: ...372 THE HASSELBLAD MANUAL Chart A8 Area coverage in inches with combinations of tables for the 33 1 44 2 sensor ...
Страница 397: ...Chart D Close up charts for 80 to 250mm Hasselblad lenses an 503 and other V system SLR cameras based on the film format ...
Страница 398: ...Close Up Photography on Film or Digital 383 ...
Страница 400: ...Jonathan Singer ...
Страница 401: ...Jonathan Singer ...
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