Sony SAL50M28 Service Manual ▷ View online
2-6
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1-5. FOCUS CAM RING AND IRIS JOINT RING RIVETING BLOCK
(See Page 2-7.)
B
C
A
A
B
C
EXPLODED VIEW
1
Large 3 Group Lens Block
3
Guide Pin
5
Focus Cam Ring
4
Iris (Inner) Tube Block
2
Large 2 Group Lens Block
6
Aperture Operating Ring Holding
7
Retainer and Steel Ball
8
Iris Joint Ring Riveting Block
HELP30
HELP30
HELP33
HELP31
HELP32
Note:
Do not remove the aperture
operating ring holding, retainer,
steel ball and iris joint ring riveting
block as possible.
operating ring holding, retainer,
steel ball and iris joint ring riveting
block as possible.
Ver. 1.4 2009.05
The changed portions from
Ver. 1.3 are shown in blue
Ver. 1.3 are shown in blue
2-7
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
2-1-6. IRIS (INNER) TUBE BLOCK
5
Aperture Connect
Barrel Unit
EXPLODED VIEW
1
Guide Pin
2
Large 1 Group Lens
Block
6
Aperture Linkage Fork
3
1st Cam Ring Hold Ring
4
First Cam Ring Adjust Washer
7
Aperture Operation Block
HELP37
HELP34
HELP35
HELP36
APERTURE
DIAMETER
ADJUSTMENT
DIAMETER
ADJUSTMENT
HELP
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
HELP
Note for assembling and grease applying positions are shown.
HELP01
1.
Install the front lens barrel to the aperture inner barrel (Temporary installation).
2.
Attach the friction sheet C to the shaded area of the front lens barrel.
HELP02
Adhesive bond (B-40): J-6082-614-A
Apply the adhesive bond (B-40) to the three screws and tighten them as shown in the figure.
Front Lens Barrel
Aperture Inner Barrel
Aperture Inner Barrel
Projection part
Reference line
Front Lens Barrel
Friction Sheet C
Apply the
adhesive
bond (B-40)
adhesive
bond (B-40)
Apply the
adhesive
bond (B-40)
adhesive
bond (B-40)
HELP
SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)
HELP03
Grease (G-85):
J-6082-626-A
Anti-diffusion agent (A-20): J-6082-611-A
Adhesive bond (LOCTITE 460) (Note)
Note:
Use adhesive bond (LOCTITE 460) or an equivalent article.
Don’t use what becomes white after drying like a quick-drying glue.
1.
Apply the grease (G-85) and anti-diffusion agent (A-20) to the instruction part of the mount riveting block.
2.
Apply the adhesive bond (LOCTITE 460) to the screw and tighten it as shown in the figure.
HELP04
Oil (O-20): J-6082-610-A
Apply the oil (O-20) to the instruction part of the main SP and attach it.
HELP05
Grease (G-85): J-6082-626-A
Apply the grease (G-85) to the instruction part of the coupler as shown in the figure.
Apply the adhesive
bond (LOCTITE 460)
bond (LOCTITE 460)
Apply the anti-diffusion agent
(A-20) (All circumferences)
(A-20) (All circumferences)
Apply the grease
(G-85) (Claw portion)
(G-85) (Claw portion)
Apply the oil (O-20)
Apply the
grease
(G-85) (Shaft and gear portion)
grease
(G-85) (Shaft and gear portion)
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