Olympus SZX7 Anleitung Handbuch - Seite 23

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Using the Aperture Iris Diaphragm

}Adjusting the aperture iris diaphragm makes it possible to improve the contrast of the observation image and increase

the focal depth.

However, the resolution is degraded when the aperture iris diaphragm is stopped down.

· Slide the aperture iris diaphragm lever.

Slide toward the left ¦ to open the aperture iris diaphragm and toward the right

image to confirm the effects on the contrast and focal depth.

# Stopping down the aperture iris diaphragm too much may degrade resolution or cause an insufficiency in the

peripheral brightness. This insufficiency tends to occur particularly at high zoom magnifications.

# When the SZX-ILLC coaxial illuminator is used, stopping down the aperture iris diaphragm to the minimum may

cut off part of image. In this case, open the aperture iris diaphragm to an intermediate position.

9-3 BX Stage Adapter Type 1 SZX-STAD1

Introduction

The SZX-STAD1 is an adapter for use in mounting the U-SRG or U-SRP rotary stage on the SZ2-ST standard stand, SZX-ST

standard stand, large stand or SZX illumination stand. The U-SRP is used in combination with the U-FMP mechanical

stage to enable movement in the X- and Y-directions, which is convenient for framing in photomicrography or TV obser-

vation. To compensate for the height of the stage adapter, it is recommended to use also the SZ2-ET auxiliary slave when

the SZ2-ST is used or the SZH-P400 auxiliary column (and the SZX-R drop prevention ring also) when the SZX-ST or SZX

illumination stand is used.

Applicable Stands and Restrictions

Stands

· Standard stand

SZ2-ST

SZX-ST

· Large stand

SZ-STL

SZX-STL

· Transmitted illumination stand

SZ2-ILA

· Transmitted illumination stand

SZX-ILLK

· High-class transmitted illumination

stand

SZX-ILLB2

· Transmitted brightfield/darkfield illu-

mination stand

SZX-ILLD2

Applicable Objectives

0.5X to 2X

Peripheral part of image is cut off at

low magnifications.

The restrictions are identical whether or not the stage adapter is used.

(Refer to the instruction manual for the SZX illumination stand.)

The transmitted light illumination field may be limited depending on the

diameter of the hole on the stage center plate in use.

# Darkfield observation is not available with the SZX-ILLD2.

# The brightness drops when a frost filter is used.

to close it. Adjust while observing the

Restrictions

None

The SZ2-ST is also required.

SZX7