Read Sony SAL135F28 Service Manual online
4-36
SAL135F28 (STF 2.8(T4.5)/135) (135mm F2.8 [T4.5] STF)
4. In case of error display in the Focus Pattern (near position or infinity position (second try))
1)
When the error display and the NG display appear to the pop-up window, perform the work with caution so that setting the focus to
the near position or infinity position can be done in more than 5 seconds and no more than 20 seconds.
• When the focus pattern error
Fig.4-6-10
Fig.4-6-11
• When the focus does not reach the near position or infinity position seconds.
Fig.4-6-12
2)
Although the focus is positioned at the infinity position or near position, if “NG” appears, confirm or perform the following.
• Cleaning of flexible pattern or the brush.
• Replacing the brush.
• Rotating operation error of the focus ring (rotation speed is not suitable at a regulated speed.).
3)
Perform “2. Checking Method”again, repeat the inspection until “OK” appears on the pop-up window.
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