Canon EOS 1V, Service Manual, Page: 84 / 240

1.16 AF F
OCUS
D
ATA
C
HECK
PURPOSE
To check the AF precision.
TOOLS
EF 50mm f/1.8 tool lens
Light
Tripod
Standard Chart
CHECK PROCEDURE
1) Set up for the focus adjustment.
2) Place the Standard Chart 2.5 m away
from the camera. Set the service lens
to the index manually.
3) On the AF menu, select [F4] Focus
Output Menu.
4) When the Focus Output Menu is
selected, the sensor selection screen
on the right will appear. Select the
sensor to be checked.
Check that each sensor’s output
meets the “focus output” standard
indicated in the table.
5) If the output does not meet the stan-
dard, try the AF sensor self-check.
Table 4-1 Defocus Standards Table
4-30
Part 4: Electrical Adjustments
PINTDATA
F1 Vertical (F2.8)
F2 Horizontal (F5.6) (Top, Bottom, Center)
F3 Horizontal (F5.6) (Center up, down)
Select with Cursor key: press RETURN key.
Press SPACE bar to return to AF menu.
Focusing data output
AFDEF
{Minus value represents back focus,
plus value does front focus.}
Press RETURN key to return to Focusing data output.
T00
000.037
000.067
C00
000.037
000.067
000.087
U00
000.035
000.037
UL1
000.035
000.037
DL1
000.067
UR1
000.087
DR1
000.035
000.037
Focusing Data Output
45° Bar Chart
50 mm f/1.8
tool lens
Standard Chart
Center
±0.070
Periphery
1
±0.077
Periphery
2
±0.091
Center
±0.220
Periphery
1
±0.286
Periphery
2
±0.286