Sony SAL50M28 - 50mm f/2.8 Macro Lens Service Manual Download Page 41

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3-6

SAL50M28 (MACRO 2.8/50) (50mm F2.8 Macro)

3-1-6. IRIS (INNER) TUBE BLOCK

DISASSEMBLY

Ref. No.

Part No.

Description

251

2-684-181-01 SCREW M1.6X2.0

252

2-684-180-01 APERTURE LINKAGE FORK

253

2-684-179-01 SUB SPRING

254

2-684-176-01 PIN B

255

A-1189-966-A APERTURE CONNECT BARREL UNIT

256

A-1189-968-A APERTURE OPERATE PLATE UNIT

257

A-1189-967-A APERTURE BLADE UNIT (Note 2)

258

2-684-177-01 APERTURE HOLD RING

Ref. No.

Part No.

Description

259

2-684-178-01 APERTURE UNIT HOLDING SPRING

260

A-1191-031-A BLOCK, LARGE 1 GROUP LENS

261

Selection part

GUIDE ROLLER A to I (Note 1)

262

2-684-129-01 PIN (GUIDE PIN)

263

Selection part

FIRST CAM RING ADJUST WASHER A to I (Note 1)

264

A-1189-970-A BLOCK

265

2-684-182-01 SCREW M1.6X1.8

266

2-684-183-01 1ST CAM RING HOLD RING

(Note 2)

Only one aperture blade unit (Ref. No. 257) is
supplied.
Confirm a necessary number when you order.

(Note 1)

The number or type of these parts need to be selected
according to adjustment etc..
Select the part referring to page 3-7.

ns: not supplied

251

252

253

254

255

256

257

(Note 2)

258

259

264

265

262

266

260

262

263

(Note 1)

261

(Note 1)

261

(Note 1)

261

(Note 1)

Summary of Contents for SAL50M28 - 50mm f/2.8 Macro Lens

Page 1: ...n History How to use Acrobat Reader How to use Acrobat Reader Sony EMCS Co SAL50M28 MACRO 2 8 50 50mm F2 8 Macro Ver 1 1 2007 02 LENS FOR DSLR CAMERA 2007B0800 1 2007 02 Published by Kohda TEC 9 852 101 12 US Model Canadian Model AEP Model Chinese Model SAL50M28 MACRO 2 8 50 50mm F2 8 Macro About the Lens Test Projector ...

Page 2: ...th an APS C sized image sensor Lens groups elements 6 7 Angle of view 1 2 47 Angle of view 2 2 32 2 The value of angle of view 1 is based on 35mm format cameras and that of angle of view 2 is based on Digital Single Lens Reflex Cameras equipped with an APS C sized image sensor Minimum focus m feet 3 0 2 0 65 3 Minimum focus is the shortest distance from the image sensor to the subject Maximum magn...

Page 3: ...ubleshooting 1 3 2 DISASSEMBLY 2 1 Disassembly 2 2 3 REPAIR PARTS LIST 3 1 Exploded Views 3 1 3 2 Supplied Accessories 3 8 4 ADJUSTMENTS 4 1 Preparations 4 1 4 2 Aperture Diameter Check Adjustment 4 4 4 3 Projective Resolving Power Check 4 9 4 4 Flange Back f F Check Adjustment 4 12 4 5 Lens ROM Check 4 16 4 6 Brush Position Check Adjustment and Pattern Check 4 17 4 7 Error Code List 4 20 ...

Page 4: ...n heavy dirt don t use paint thinner ketone nor alcohol Insert the specific screws vertically to the part when installing a exterior part Be careful not to tighten screws too much 1 3 Unleaded Solder This unit uses unleaded solder Boards requiring use of unleaded solder are printed with the lead free mark LF indicating the solder contains no lead Caution Some printed circuit boards may not come pr...

Page 5: ...xible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the conductor when soldering or unsoldering SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINEWITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PA...

Page 6: ... part Check operation of the preset ring and replace the defective part Perform the aperture diameter adjustment See page 4 7 Perform the aperture diameter check See page 4 4 NG Check operation of the aperture control block OK OK OK Function NG F No NG Aperture trouble Replace the defective part NG NG NG END OK Perform the aperture diameter check See page 4 4 ...

Page 7: ...apply the grease Check the coupler and gear block Check the fixed holding tube block and fixed barrel unit NG NG NG NG NG END OK Check the position and deformation at the tip of the A encoder brush Adjust the position or replace the A encoder brush Check pattern of the main flexible block Clean the pattern of the main flexible block Replace the main flexible block Perform the brush position check ...

Page 8: ...rd UNIVERSAL WRENCH In case of the following notches or holes are located in the lens block etc during disassembling assembling the lens Use the universal wrench How to Use Attach the chip A or chip B to the universal wrench For the notches chip A For the holes chip B Match the universal wrench to the holes or notches of the lens block etc When top of tip does not reach holes or notches because th...

Page 9: ...ar Light HELP02 7 Coupler HELP05 5 Mount Riveting Block HELP03 1 Front Light 2 Front Lens Barrel Note Attach the decollation ring after cleaning the attaching surface of the middle barrel FLANGE BACK ADJUSTMENT FLANGE BACK ADJUSTMENT Shield Barrel Shield Barrel Note Remove the front light shield barrel using the name ring wrench A 49mm Name ring wrench A 49mm J 6082 586 A Name ring wrench A 49mm H...

Page 10: ... Friction Spring Select the friction spring and torque ring spring adjust according to the rotation load of the torque ring as follows 1 Use the friction spring B and torque ring spring adjust washer 1 piece as reference 2 Adjust the torque of the torque ring by changing the number of the 3 If the rotation remains light even adjust the torque by torque ring spring adjust washer Friction spring A T...

Page 11: ...ding to the rotation load of the focus range switch knob as follows 1 Install the gap adjust washer B and check the rotation 2 If the rotation is heavy replace with the gap adjust washer A 3 If the rotation remains heavy even with the gap adjust washer A Washer A T 0 05 mm 2 684 218 01 Washer B T 0 1 mm 2 684 219 01 Washer C T 0 2 mm 2 684 220 01 remove the washer and attach the focus range switch...

Page 12: ...B B See Page 2 6 EXPLODED VIEW 1 Gear Cover 8 Fixed Barrel Unit 3 Linear Guide Key 2 Gear Block HELP19 HELP23 HELP24 HELP25 HELP20 6 Focus Guide 7 Focus HELP22 4 Guide Pin 5 Middle Tube Block HELP21 HELP21 Stopper HELP27 HELP28 HELP29 HELP24 HELP29 HELP26 9 Main Flexible Block BRUSH POSITION ADJUSTMENT ...

Page 13: ... Group Lens Block 3 Guide Pin 5 Focus Cam Ring 4 Iris Inner Tube Block 2 Large 3 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 ...

Page 14: ... 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 ...

Page 15: ...lation 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 Apply the adhesive bond B 40 ...

Page 16: ...truction 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 Apply the anti d...

Page 17: ...ter tape onto the solder parts to cover entirely HELP07 Grease G 85 J 6082 626 A Adhesive bond B 40 J 6082 614 A 1 Apply the grease G 85 to the instruction part of the slipping lever block 2 Apply the adhesive bond B 40 to the three screws Apply the adhesive bond B 40 Apply the adhesive bond B 40 MF Operating Ring Slipping Lever Block Apply the grease G 85 Linear Guide Key Flexible Substrate Setti...

Page 18: ...ition the slipping lever block so that the MF operation ring can be installed smoothly 3 After adjustment apply the adhesive bond B 10 to the two screws 4 Apply the adhesive bond B 10 and grease G 15 to the instruction part of the anti slip spring as shown in the figure Clip Lever MF Operation Ring It shifts and adjusts to right and left Slipping Lever Blcck Two screws Apply the adhesive bond B 10...

Page 19: ...djustment screw for adjustment Make sure the float ring does not rotate accordingly when turning the torque ring by any slipping lever block HELP09 Adhesive bond B 40 J 6082 614 A Apply the adhesive bond B 40 to the four screws A adjustment pin is turned and wobbles is adjusted Adjustment Pin Float Ring Torque Ring Slipping Lever Block Apply the adhesive bond B 40 Apply the adhesive bond B 40 Groo...

Page 20: ...rease G 35 J 6082 621 A Apply the grease G 35 to the instruction part as shown in the figure Note If the rotation of MF operation ring is heavy remove the pinch distance adjust washer A HELP12 Anti diffusion agent A 20 J 6082 611 A Apply the anti diffusion agent A 20 to the instruction part of the torque ring holder Torque Ring Focus Operation Ring Guide Nut Apply the adhesive bond LOCTITE 460 App...

Page 21: ...2 A Apply the grease G 85 to the instruction part as shown in the figure and apply the adhesive bond B 10 to the screw Torque Ring Spring Adjust Washer Apply the grease G 85 All double sided circumference Outer Barrel Apply the adhesive bond B 10 Focus Range Switch Knob Focus Range Stopper Apply the grease G 85 Torque Ring Torque Ring Holder Friction Spring Torque Ring Spring Adjust Washer Apply t...

Page 22: ... bond B 60 J 6082 616 A 1 Apply the adhesive bond B 10 to the instruction part as shown in the figure 2 Apply the adhesive bond B 60 to the instruction part of the outer barrel as shown in the figure Apply the grease G 15 Apply the grease G 15 Washer Screw Click Plate Apply the adhesive bond B 10 FH Button Base Apply the adhesive bond B 60 Outer Barrel Outer Barrel FH Button Ver 1 1 2007 02 ...

Page 23: ... drying glue Apply the adhesive bond LOCTITE 460 to the instruction part of the mount index HELP19 Grease G 80 J 6082 625 A Grease G 85 J 6082 626 A Adhesive bond B 40 J 6082 614 A Apply the grease G 80 G 85 to the instruction part of the gear block and apply the adhesive bond B 40 to the two screws Apply the anti diffusion agent A 20 All circumference Apply the anti diffusion agent A 20 Apply the...

Page 24: ...focus cam ring and one of the fixed barrel unit are aligned 3 Align the cam groove of the focus ring one of the fixed barrel unit and the screw hole of the focus cam ring Then apply the adhesive bond B 40 to the guide pin and install the guide roller Apply the adhesive bond B 40 Apply the adhesive bond B 40 Apply the grease G 85 Apply the grease G 85 Guide Roller Guide Roller Guide Roller Middle T...

Page 25: ...5 to the cam groove and the anti diffusion agent A 20 to the instruction parts of the focus ring 2 Apply the grease G 15 to the cam groove and the anti diffusion agent A 20 all round to the shaded area of the fixed barrel as shown in the figure Apply the grease G 35 Apply the adhesive bond B 40 Fixed Barrel Unit Focus Guide Apply the adhesive bond B 40 Apply the grease G 85 Gear portion Apply the ...

Page 26: ...d line A 2 Attach the flexible substrate setting tape D at the designated point HELP25 Attach the friction sheet B to the shaded area from the position A as shown in the figure horizontal tolerance 10mm Fixed Barrel Unit Friction Sheet B A Reference portion Fixed Barrel Unit Flexible Substrate Setting Tape A Flexible Substrate Setting Tape D A ...

Page 27: ...old the main flexible block at the reference lines as shown in the figure 3 Attach the main flexible block to the fixed barrel Outside Align the line A of the main flexible block with the line a of the fixed barrel Inside Align the line B of the main flexible block with the line b of the fixed barrel Fixed Barrel Unit Screw hole a Fixed Barrel Unit b Valley chip box Main Flexible Block Mountain ch...

Page 28: ...diffusion agent A 20 J 6082 611 A 1 Apply the anti diffusion agent A 20 to the shaded area of the focus scale plate 2 Attach so that the scratch line of the focus scale plate and reference line of the focus ring are aligned Reference line It separates from the end of R 1 to 2 mm Fixed Barrel Unit Apply the anti diffusion agent A 20 Reference line Reference line Fixed Barrel Unit Scratch line Focus...

Page 29: ...ncoder brush 2 Install the A encoder brush to the designated position Turn the barrel to infinity so that no flex pattern underlies Temporary installation A encoder brush position adjustment is necessary before fixing 3 After the brush position adjustment is completed apply the adhesive bond B 10 to the two screws Apply the adhesive bond B 40 Apply the adhesive bond B 10 A Encoder Brush FPC Patter...

Page 30: ... 1 Apply the grease G 115 to the instruction part as shown in the figure 2 Turn the focus cam ring until the notches of the focus cam ring and the middle barrel are position as shown in the figure Middle Barrel Notch portion Notch portion Focus Cam Ring Apply the grease G 115 Guide groove and slash portions ...

Page 31: ...l Wrench J 6082 609 1 Chip B for Universal Wrench J 6082 609 2 1 Install the iris joint ring riveting block into the middle barrel 2 Hold up the iris joint ring block by 5mm above 3 Install the steel ball and retainer between the middle barrel and the iris joint ring riveting block 4 Use the universal wrench tighten the aperture operating ring holder almost to the end then loosen it back by 5 to 1...

Page 32: ...ply the anti diffusion agent A 20 to the instruction part of the middle barrel as shown in the figure 2 Apply the grease G 115 to the guide groove of the middle barrel at three points 3 Apply the grease G 15 to the groove of the cam plate apply the Adhesive bond B 40 to the two screws and install the cam plate A A A A Apply the anti diffusion agent A 20 Apply the anti diffusion agent A 20 All circ...

Page 33: ...82 611 A Adhesive bond B 40 J 6082 614 A 1 Apply the oil O 20 to the sub spring 2 Apply the grease G 35 to the instruction part of the aperture linkage fork 3 Apply the anti diffusion agent A 20 entirely to the aperture linkage fork 4 Apply the adhesive bond B 40 to the two screws and install the aperture linkage fork Apply the anti diffusion agent A 20 All circumference Apply the oil O 20 Apply t...

Page 34: ... the aperture blades one by one and put the first blade on the 7th one finally 2 Apply the adhesive bond B 10 to three points for 5 to 10mm of width after completing aperture diameter adjustment Apply the adhesive bond B 10 Three points for 5 10 mm Aperture Blade Unit 7 Aperture Hold Ring 7 1 ...

Page 35: ... the post of the first cam ring linkage plate block fits into groove A of the inner barrel Then install it with the first cam ring adjust washer HELP38 Adhesive bond B 40 J 6082 614 A Attach the front lens barrel and apply the adhesive bond B 40 to the three screws and tighten them as shown in the figure Apply the adhesive bond B 40 Chamfered edge Wide Chamfered edge Narrow First Cam Ring First Ca...

Page 36: ...ption 1 2 684 066 01 TAPPING SCREW 1 7X4 0 2 2 684 064 01 SCREW M1 4X2 2 3 2 684 063 01 REAR LIGHT SHIELD BARREL 4 2 684 065 01 GROUND SPRING 5 A 1191 138 A BLOCK MOUNT RIVETING 6 2 684 244 01 STOPPER SCREW 7 2 684 128 01 TAPPING SCREW PHI 2 M2 0X4 5 8 A 1191 017 A PRESET RING BLOCK 9 2 684 233 01 MAIN SPRING NOTE XX and X mean standardized parts so they may have some difference from the original ...

Page 37: ... 01 TORQUE RING HOLDER 63 2 684 070 01 MF OPERATION RING GUIDE PIN 64 2 684 069 01 MF OPERATION RING 65 2 684 273 01 FOCUS OPERATION RING GUIDE NUT 66 2 684 071 01 FLEXIBLE SUBSTRATE SETTING TAPE C Note 3 67 2 684 072 01 FOCUS RUBBER RING Note 1 The number or type of these parts need to be selected according to adjustment etc Select the part referring to page 3 7 Note 2 See page 2 3 Select the num...

Page 38: ...EW M1 6X4 0 112 2 684 221 02 FOCUS RANGE SWITCH KNOB 113 Selection part GAP ADJUST WASHER A to C Note 1 114 2 683 692 01 CHIP MOUNT INDEX 115 2 684 210 01 WASHER 116 2 684 209 01 SCREW M1 4X1 5 117 2 684 213 01 FH BUTTON BASE 118 2 684 212 01 FH BUTTON 119 2 684 211 01 DUST PROOFING TAPE 120 2 684 208 01 CLICK PLATE 121 2 684 228 01 SW FLEXIBLE 122 2 684 207 01 FHB ADHESIVE TAPE 123 A 1191 041 A U...

Page 39: ... 158 A 1189 941 A FIXED BARREL UNIT 159 2 684 201 01 BRUSH BASE 160 2 684 378 01 FOCUS SCALE PLATE 161 9 913 210 03 POLYESTER TAPE BLACK 10mm Note 2 Ref No Part No Description 162 2 684 084 01 TAPE D FLEXIBLE SUBSTRATE SETTING TAPE D 163 A 1189 942 A MAIN FLEXIBLE BLOCK 164 2 684 104 01 PLATE LINEAR GUIDE KEY A 165 2 684 105 01 SCREW M1 6X3 5 166 2 684 093 01 FOCUS STOPPER 167 A 1189 971 A BLOCK G...

Page 40: ... 01 SEMIOVAL SCREW M1 6X3 0 207 2 684 169 01 CAM PLATE 208 2 684 168 01 MIDDLE BARREL 209 2 684 155 02 FOCUS CAM RING 210 2 684 129 01 PIN GUIDE PIN 211 Selection part 1ST 2ND LENS GUIDE ROLLER A to I Note 1 212 A 1191 030 A BLOCK LARGE 3 GROUP LENS Ref No Part No Description 211 Note 1 211 Note 1 211 Note 1 See Page 3 6 206 204 204 204 204 205 203 203 203 204 203 203 202 201 207 208 210 212 210 2...

Page 41: ...IT HOLDING SPRING 260 A 1191 031 A BLOCK LARGE 1 GROUP LENS 261 Selection part GUIDE ROLLER A to I Note 1 262 2 684 129 01 PIN GUIDE PIN 263 Selection part FIRST CAM RING ADJUST WASHER A to I Note 1 264 A 1189 970 A BLOCK 265 2 684 182 01 SCREW M1 6X1 8 266 2 684 183 01 1ST CAM RING HOLD RING Note 2 Only one aperture blade unit Ref No 257 is supplied Confirm a necessary number when you order Note ...

Page 42: ...03 mm 2 684 140 01 GUIDE ROLLER H D1 4 51 mm D2 4 02 mm 2 684 141 01 GUIDE ROLLER I D1 4 51 mm D2 4 01 mm Ref No 263 Select the type of part according to the operation load of the associated parts Part No Description 2 684 184 01 FIRST CAM RING ADJUST WASHER A T 0 05 mm 2 684 185 01 FIRST CAM RING ADJUST WASHER B T 0 1 mm 2 684 186 01 FIRST CAM RING ADJUST WASHER C T 0 2 mm D1 D2 3 1 7 SELECTION P...

Page 43: ...INSTRUCTION JAPANESE ENGLISH FRENCH SPANISH 2 685 162 11 MANUAL INSTRUCTION GERMAN DUTCH SWEDISH ITALIAN AEP 2 685 162 21 MANUAL INSTRUCTION PORTUGUESE RUSSIAN TRADITIONAL CHINESE KOREAN AEP 2 685 162 31 MANUAL INSTRUCTION SIMPLIFIED CHINESE ARABIC AEP CH Abbreviation CH Chinese model FrontLensCap 2 683 616 01 RearLensCap 2 683 615 01 ...

Page 44: ... Calculator 2 is downloadable from the ESI homepage Fig 4 1 1 Ver 1 1 2007 02 Personal computer Note 1 AE master lens J 6082 597 A Flange back gauge 43 50mm J 6082 608 A Flange back tester J 6082 606 A A mount attachment J 6082 607 A Lens test projector J 6082 605 A Note 3 1000 mm Collimator 110V J 6082 604 A 240V J 6082 604 B Note 2 USB cord with connector 1 833 062 11 Luminance box J 6082 581 A ...

Page 45: ...B terminal Standard equipment Graphics 32 000 colors or more recommended VGA monitor Note 2 Attach the chart to the 1000 mm collimator as shown in Fig 4 1 2 Fig 4 1 2 Note 3 Connect the variable transformer Output voltage AC 100 V to the lens test projector Note 4 Modify the outer barrel as follows to make the outer ring jig Required Part Outer barrel 2 684 206 01 Making Method 1 Chop off the oute...

Page 46: ...ustment program described on the top cover of the camera DSLR A100 service manual 9 852 130 5 Note Store the lens adjustment program LensAdjustment exe and related file AlphaLensAdjust txt in the folder that contains the DSLR A100 adjustment program DSLRadj_cs exe 2 Start the Lens Adjustment Program 1 Connect the camera and PC with the USB cord with connector 2 Set the mode dial of camera to M 3 T...

Page 47: ...owing conditions and save them Note Shoot the center of the luminance surface three times with the master lens and checking lens Setting of Luminance box Luminance EV12 Setting of Lens Focus Infinity end Setting of Camera ISO 100 Exposure Mode M shutter Speed 1 125 Aperture F5 6 Focus Mode MF Metering Center weighted Preset white balance Tungsten D R OFF Luminance box Luminance EV12 Camera ISO 100...

Page 48: ... Start the Color Calculator 2 Fig 4 2 2 2 Read the image from the file menu Fig 4 2 3 3 Set the Color Calculator 2 as follows Measured value display Display menu RGB L a b Measuring method Display menu Center Single Area Fig 4 2 4 Color space Edit menu sRGB Fig 4 2 5 Area size for calculate Edit menu Option 256 256 Pixels Fig 4 2 6 ...

Page 49: ...mages shoot with checking lens b Fig 4 2 7 3 Checking Method 1 Calculate aperture error using the following formula and check that the aperture error is within the specification Aperture error Average G value of master lens a Average G value of checking lens b Specification Aperture error 0 12 2 When the aperture error is out of specification perform 4 2 2 Aperture Diameter Adjustment Calculate bu...

Page 50: ...or Calculator 2 installed Adhesive bond B 10 1 Adjusting Method 1 Separate all lens elements in front of the aperture blades 2 Remove the adhesive bond fixing the aperture unit holding spring Fig 4 2 8 3 Move the preset lever to set the preset ring at the open aperture position Fig 4 2 9 Aperture Unit Holding Spring Adhesive Bond Adhesive Bond Set the preset ring at the open aperture position Pres...

Page 51: ...ompletely 7 Perform 4 2 1 Aperture Diameter Check and repeat 4 2 1 Aperture Diameter Check and 4 2 2 Aperture Diameter Adjust ment until the aperture error is within the specification Aperture Hold Ring To increase the diameter turn clockwise To decrease the diameter turn counterclockwise Aperture blades are hidden into the edge completely Apply the adhesive bond B 10 5 to 10 mm long 3 areas Apert...

Page 52: ...nce m 50 2 15 Table 4 3 1 1 Perform the following steps 1 to 3 and incorporate the internal lenses of the lens test projector according to the checking focal length 1 Open the lid of the lens test projector 2 Pull up and turn the fixed levers on the right and left sides of the lens test projector 3 Remove or insert the lens Note Be sure to have the right position and direction of the lens Fig 4 3 ...

Page 53: ...itch to ON Fig 4 3 2 4 Turn the focus ring of the checking lens until the chart image projected on the screen is the sharpest at the center y 0 5 Set the plane mirror to the center of the projected image y 0 and adjust the projector position so that the mirror reflects the light to the center of the lens Distance Lens test projector Chart Fan switch Lamp switch Plane mirror Screen A mount attachme...

Page 54: ... careful of the spurious resolution Spurious resolution is the reversed image of 2 or 4 lines which appears on screen when focus is beyond maximum revolving power Do not confuse spurious resolution for the smallest pitched lines Fig 4 3 4 4 Check that the all readings y 0 saggital S and meridional M at y 15 or 18 is within the specification of the Table 4 3 2 Specification Focal length distance m ...

Page 55: ... A mount attachment and hold them together 4 Turn the focusing knob of the flange back tester so that fine scratches on the flange back gauge 43 50mm is the sharpest Note Turn the knob in the direction of the arrow of Fig 4 4 2 for correct reading Fig 4 4 2 5 Turn the scale ring of the dial gauge until the long pointer indicates 0 Note This position is the flange back f F 43 5 mm Memorize the posi...

Page 56: ...which the color of collimator chart changes from green into red and come into focus Also check the optical axis aligns with the chart center Refer to Fig 4 4 4 Note Figure shows example The cause depends on individual lens Fig 4 4 4 5 Check that the infinity index of the focus scale plate is within the distance index width of the distance scale window as shown in the Fig 4 4 5 If not perform 4 4 2...

Page 57: ... scale window as shown in the Fig 4 4 6 Fig 4 4 6 3 Turn the focusing knob of the flange back tester until the chart image is the sharpest while looking through the microscope 4 Calculate the flange back f F Flange back f F of the checking lens Flange back gauge Number of short pointer revolution Reading of long pointer 5 Calculate focus error amount using the following formula Focus error amount ...

Page 58: ...k 7 Calculate the coupler adjustment washer thickness using the following formula and replace the adjustment washer Refer to Table 4 4 1 and Fig 4 4 7 Coupler djustment washer thickness Back adjustment washer thickness 0 05 mm Back adjustment washer Parts No t mm A 2 684 123 01 0 05 B 2 684 124 01 0 07 C 2 684 125 01 0 1 D 2 684 126 01 0 2 E 2 683 127 01 0 5 Coupler adjustment washer Parts No t mm...

Page 59: ...Connect the checking lens to the camera 2 Start the lens adjustment program LensAdjustment exe referring to 4 1 2 Lens Adjustment Program Fig 4 5 1 2 Checking Method 1 Click the Connect button on the lens adjustment program Note Click the End button to disconnect the USB connection then lens adjustment program will terminate 2 Check that the display of Lens Code and Model Name is correct Note Focu...

Page 60: ... 4 1 2 Lens Adjustment Program Fig 4 6 1 2 Checking Method 1 Check that the Type is set to 1 and click the Connect button on the lens adjustment program Note Click the End button to disconnect the USB connection then lens adjustment program will terminate Fig 4 6 2 2 Check that the Type is set to 1 and click the Focus button on the lens adjustment program 3 Set the focus position to infinity end t...

Page 61: ... refer to 4 1 1 List of Service Tools and Equipments 1 Preparations 1 Remove the fixed holding tube from the checking lens 2 Attach the outer ring jig to the checking lens and assemble the lens 3 Set the focus position to infinity end 2 Brush Position Adjustment 1 Loosen the two screws as shown in the Fig 4 6 5 Fig 4 6 5 2 Perform the 4 6 1 Brush Position Check and adjust the A encoder brush posit...

Page 62: ...Focus Pattern change from 1 to 51 continuously 2 Turn the focus ring slowly from the infinity end Focus Pattern 51 to the near end Focus Pattern 1 and check that the value of Focus Pattern change from 51 to 1 continuously Fig 4 6 7 3 Click the Exit button 4 Click the End button to terminate the lens adjustment program 5 Turn the POWER switch of the camera to OFF 6 After the pattern check is comple...

Page 63: ...t of sync with the number of check pattern Error No Lens Lens is not connected correctly Error Unknown Lens Unidentified lens is connected Communication Error Code E600 Communication error with the camera Code F000 Input data error to DLL file Code F100 Setting error of USB port Code 2531 Communication error of main signal on the camera ...

Page 64: ...pplied to the Service Manual depending on the date of issue Switching a page To move to the first page click the To move to the last page click the To move to the previous page click the To move to the next page click the Reversing the screens displayed once To reverse the previous screens operation one by one click the To advance the reversed screens operation one by one click the Application to ...

Page 65: ...8 Macro Ver 1 0 1 1 Date 2006 06 2007 02 History Official Release Revised 1 Contents Change of Repair Parts Section 1 5 Section 2 Section 3 Section 4 Change of HELP15 Addition of guide of About the Lens Test Projector Cover S M Rev issued Yes 985210112 pdf ...

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Summary of Contents for SAL50M28 - 50mm f/2.8 Macro Lens

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