Nikon VBA23001 - Page 212

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R3 ･ D90
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VBA23001-R.3762.A
Items Judgment standard Remarks
Viewfinder
Inner LCD lower panel
window position
Finder eld frame
Field of viewnder
(frame coverage)
Parallax
(Difference of center
from the shot image/
sensor)
Eye point
Up-down position: No outstanding misalignment
Tilt: １° or less
Lens vignetting/distortion: No outstanding vignetting/distortion
Tilt: (based on Bottom cover): 90°± 30’
Relative angle to image sernsor : 0.5° or less
In height and width: "96%" +3% / -2%
Up-down: 0.5 mm or less
Right-left: 0.5 mm or less
Distance to eyepiece protectiv glass:19.5mm±10%
Visual check
AF50/1.4D, F5.6
Looking through
viewfinder, measure
a tilt of indication
line (parallel to the
bottom) from thethe
bottom line of the
frame.
.
Vernier caliper
Eye point tool
Standby (idle) /
consumed current
Main SW / OFF: 250 μA or less
（Do NOT press any operational buttons.）
Main SW / ON (Half-release timer: OFF): 250 μA or less
Main SW / ON (Half-release timer: ON): 200 mA or less
Main SW / ON (Illumination: ON): 250 mA or less
Main SW / ON (TFT ON): 400 mA or less
Main SW / ON : 4A or less
Constant Voltage
Poewr Source
7.8 ＋ 0.3Ω
LV12
Oscilloscope
INC