Checking Procedure - Sony SEL1635GM Service Manual

Fe 2.8/16-35 gm) (fe 16-35mm f2.8 gm)
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5-3-2. Projective Resolving Power Check
Reference value:
Focal length f
Distance (m)
(mm)
16
0.64
20
24
0.96
28
1.12
35

Checking Procedure

1. Set the projection distance of the lens projector. (Refer to "Reference value")
2. Set the focus.
3. Bring the projector into focus so that fine lines of the center projected image (y' = 0) on the screen can be clearly seen as much as possible
by operating the program screen.
Number of projective resolving power lines (lines/mm)
Center (y' = 0)
0.8
More than
80 lines
1.4
The number of projective
resolving power lines
Peripheral (y' = 15)
S
M
More than
More than
40 lines
40 lines
Use the small projected image.
(for High frequency)
Saggital (S)
Meridional (M)
5-18
SEL1635GM
Peripheral (y' = 18)
S
M
More than
More than
25 lines
25 lines
– Continued on next page –

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