Sony SAL500F80 Service Manual ▷ View online
4-19
SAL500F80 (REFLEX 8/500) (500mm F8 Reflex)
2)
Turn the focusing knob of the flange back tester so that the dial gauge indicates “44.57 mm”.
3)
Turn the helicoid unit of the checking lens until the image is the sharpest.
4)
Mark the scrape line to the focus connect ring at the same position (infinity position) as the index line on the fixed holding tube
marked in step 3) of the preparation.
Fig.4-3-4
5)
Remove the outer barrel assy, gear block, filter and mount block.
6)
Align the infinity position of the focus scale plate with the index line marked in step 4), and affix it to the focus connect ring.
Fig.4-3-5
7)
Affix the two focus scale plate set tapes to both ends of the focus scale plate.
Outer Barrel Assy
Mark the Scrape Line
(infinity position)
(infinity position)
Index Line marked in step 3)
Focus Connect Ring
Focus Scale Plate
Scrape line marked in step 4)
Focus Connect Ring
4-20
SAL500F80 (REFLEX 8/500) (500mm F8 Reflex)
4-4.
INNER GEAR POSITION ADJUSTMENT
Perform this adjustment after completing the “4-2. Optical Axis Check/Adjustment” and “4-3. Flange Back (f’F) Adjustment”.
1. Adjusting Method
1)
Attach the outer barrel assy tentatively.
2)
Turn the G1 lens holder to align the index line on the focus scale window unit with the infinity index line of the focus scale plate.
Fig.4-4-1
3)
Rotate the coupler of the gear block clockwise until it stops.
Fig.4-4-2
G1 Lens Holder
Focus Scale Plate
Index Line on the Focus Scale Window Unit
Movable range of focus stopper pin
(Range of between near end to infinity end)
(Range of between near end to infinity end)
Outer Barrel Assy
Focus Rubber Ring
Coupler of the Gear Block
4-21
SAL500F80 (REFLEX 8/500) (500mm F8 Reflex)
4)
Detach the outer barrel assy in the state of above step 3), and lift the focus connect ring up. Then, fix the inner gear with back
adjustment tape.
Note:
At this time, hold it not to shift the focus rubber ring.
Fig.4-4-3
5)
Rotate the helicoid unit, and check that it rotates smoothly without catching between near distance end and infinity position.
6)
After assembling, mount the lens to the camera and focus it on an infinite object. Check that the infinity position of the focus scale
plate and the index of the focus scale window unit are the same position as shown in the figure.
Inner Gear
Back Adjustment Tape
Focus Connect Ring
4-22
SAL500F80 (REFLEX 8/500) (500mm F8 Reflex)
4-5.
LENS ROM CHECK
Equipment
• Personal Computer
• Finished Inspection JIG (AC 100 V only)
• Lens Adjustment Program (ActuatorChecker.exe)
1. Preparations
1)
Connected to equipment with checking lens. (Refer to Section 4-1-3.)
2)
Start up of “ActuatorChecker.exe”.
3)
Click
[Set up]
, and perform the initial setting. (Refer to Section 4-1-4.)
2. Checking Method
1)
Click
[ROM Data]
.
Fig.4-5-1
2)
The Serial window appears. Input the lens serial number.
Note:
When
[OK]
is clicked without inputting the serial number, the date executed is displayed on the completion window of each
item.
Fig.4-5-2
3)
When “OK” is displayed on the pop-up window, press the ENTER key to return to the initial window.
Fig.4-5-3
Click on the first or last page to see other SAL500F80 service manuals if exist.