AMOUNT_LENS - Sony Digital Camera Service Manual (repair manual). Page 25

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LENS GENERAL ADJUSTMENT GUIDE

Shoot images with the lens to be tested and the AE master lens under the following conditions (Note 1), and compare the images to check the
error amount (Note 2).

• Shooting magnification (60, 40, 20 times)

• Chart for checking the depth area of image-formation (tilting chart 2 types)

• Defocus value “0 

± 10 µm”

The higher the magnification, the focusing error amount becomes the bigger. Therefore, it is easy to judge of result.

If the error amount is outside the acceptable range, perform “Focusing Error Amount Adjustment” described in each service

manual.

For old models that do not have focusing error amount specification, perform “

∆SB Check/Writing” or “Focus-Shift Adjust-

ment (Aperture (Amount of Spherical Aberration))” described in each service manual to adjust the error amount.

• Chart for checking the depth area of image-formation (40, 60 times)

Search “Chart for checking image formation_40x_60x” in the TISS homepage.

Obtain the “Chart_for_checking_image_formation_40x_60x_(E).zip”.

• Chart for checking the depth area of image-formation (20 times)

Search “Chart for checking image formation_20x” in the TISS homepage.

Obtain the “Chart_for_checking_image_formation_20x_(E).zip”.

• Software

Obtain the following either software from TISS homepage.

Software

Camera

DSLR-A700 Defocus checker

DSLR-A700

Defocus Checker 2

SLT-A37/A57/A58/A65/A77/A99

• Camera

SLT-A37/A57/A58/A65/A77/A99 or DSLR-A700

• HASP key

• Personal computer (supporting Seus-EX)

• AE Master Lens

J-6082-597-A: 50mm/F1.7

• Illumination

J-6082-642-A: Fluorescent Lamp (specified color rendering)

J-6082-643-A: Fluorescent Light Stand (high-frequency lighting type)

• Recording media

• Tripod

1)

Insert the recording media to the camera.

2)

Set the camera and chart for checking the depth area of image-formation as shown in Table 6-1-2, Fig. 6-1-1 and Fig. 6-1-2.

Shooting distance is obtained by shooting magnification and focal length as following.
[Shooting distance] = [shooting magnification] 

× [focal length]

Select the combination according to the Table 6-1-2 Guidelines table.

If the shooting distance using a 60 times chart cannot be ensured indoors, temporarily use a combination of 40 times chart or
20 times chart.

3)

Connect the camera and personal computer (when using HASP Key) with USB cable and activate Defocus Checker 2 or DSLR-A700

Defocus checker. In case Defocus Checker 2 is used, click [Connect] to set connection mode.

If an abnormal phenomenon appears during installation of the teleconverter used by the user, install the user’s

teleconverter.