Aberration Compensation Data Writing Adjustment - Nikon ED 17-55mm f/2.8G IF Repair Manual

Aberration compensation data writing adjustment

・ This adjustment uses the software which calculates the aberration compensation data according to the feature
of lens aberration and writes in EEPROM of the lens, in order to improve the accuracy of autofocus.
Note: This adjustment is necessary when the main PCB and/or each lens part (glass, lens chamber) is
replaced or when each lens part is disassembled. Be sure to make this adjustment after completing
inspecting and adjusting the main PCB.
(1) Preparation
・ Test chart (Self-made tool: ref. Procedure for how to create it.)
・ Tripod
・ D100
・ Personal computer
・ USB cable（UC-E4）
・ Adjustment software (LWM.exe：used for the lens optical alignment.)
(2) Procedure for how to create Test chart
・ Photocopy the next page and cut out 1 target chart and 5 resolution charts.
（Target chart）
・ As shown below, put each chart in position at the specified spacings.
Note: Only about the center, put the target chart on the central resolution chart.
Additional page
（+100μm）
（+50μm）
（0μm）
（-50μm）
（-100μm）
300mm
- L54-1･ AF-S DX17-55/2.8G -
INC
JAA78851-R.3617.A
（Resolution chart）
45mm
45mm
45mm
November. 4. 2004
45mm