HDR Soft Pro - 5.0 - Windows Instrukcja Użytkownika Pobierz pdf (Strona 4)

Photomatix Pro 5.0 User Manual 2

1 Taking Photos for HDR

The shooting phase is essential for getting good results

with Photomatix� To photograph a high contrast scene,

you need to take several exposures in order to capture

information in both the highlights and the shadows of

the scene� The exposures taken must properly cover the

dynamic range of the scene, especially the shadows�

The number of photos you need depends on the scene�

It also depends on the Exposure Value (EV) spacing

separating the photos� If you take them in one-EV steps

(e�g�, -1, 0, +1 EV), you will need more photos than

if you take them in two-EV steps (e�g�, -2, 0, +2 EV)�

We recommend shooting in two-EV steps whenever

possible�

High contrast scenes can be grouped into roughly two

types depending on their dynamic range:

• Medium dynamic range scene: Most landscapes

and other types of outdoor scenes fall into this

category� Three exposures taken in two-EV steps (i�e�

–2, 0 +2 EV), or ve exposures taken in one-EV steps,

are usually sucient for this type of scene�

• High dynamic range scene: A typical example is the

interior of a room with a view outside the window on

a sunny day� You need to take at least ve exposures

in two-EV steps (or nine exposures in one-EV steps) to

capture this type of scene, but you may need more�

Taking the exposures manually is recommended in

these cases�

Three exposures of a medium dynamic

range scene, taken in two-EV steps

The source photographs for HDR processing can be taken with digital or lm-based cameras� The only

requirement is that the exposure can be adjusted when taking pictures� If you use a lm-based camera, you

will need to scan the photographs into your computer before processing them (refer to Section 1.3)�

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HDR Soft Pro - 5.0 - Windows Instrukcja Użytkownika Strona 4