Olympus SZ-III 사용 설명서 - 페이지 6

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Olympus SZ-III에 대해서도 마찬가지입니다: 사용 설명서 (12 페이지)

ZOOMING VARIATION

LENS

SYSTEM

This system is composed of 2 sets of lenses placed and

operated

parallel, each

set

consisting of 2 groups

of varifocal lenses. The change of magnifications is performed by zooming these group of lenstr and

changing the focal length of the objective. In case of the magnification change from a low number

to a

higher one, the lower lens group (1st tens group) rises to the middle and then comes down.

The

upper

lens group (2nd lens group) is lo\vered stright down.

The magnification ratio for the zooming system is

5.7

With the use of an objective 1

i t

varies from

0.75

3 x

The following illustration indicates

positions of lenses in different cases of magnifications.