Doing a little checking: a used 70-200 F4 L in decent condition can be had for around $600. While it's certainly possible that a repair would be $300, it probably won't be that much. Not sure about your options, but my local shop has some kind of deal with Canon where they ship it to Canon, get an estimate, and I can then decide whether I want to go ahead with it. If I decide not to, all I pay is the shipping (usually around $35). If I do, it's just the cost of the repair. Might be worth looking into.

MANUALS × Manuals. Canon Service & Repair Web Content Viewer Actions. Download Aplikasi Hacker Internet Buat Hp Venera. Broadcast Lens Repair Request Form. Canon Professional Services. Firmware Update List.

– Jun 12 '12 at 18:30. Simple Rmi Program Using Netbeans With Php.

EF 70-200mm 1:2.8L IS USM REF.NO. C21-0111 PARTS CATALOG REF.

C21-0111 1 CANON LENS EF70-200mm 1:2.8L IS USM (See Pg.2) YG2-0528 YA2-0124 (YA2-2082 x4) CY1-2178-000 (See detail) N.S (YA2-0929 x4) CY1-2988-000 (See detail) XA9-1306 x4 YA2-4749 YA2-3463 CA2-4586 x2 CY1-2497-000(280) CA2-4586 x3 A 0.02mm 0.05mm SIZE (002) (005) XA1-7200-706 x4 YA2-2067 CY1-2178-000 detail Service Use Only A CY1-2988-000 detail A A 1.7mm 1.8mm 1.9mm 2.0mm SIZE (170) (180) (190) (200) A 2.1mm 2.2mm 2.3mm 2.4mm SIZE (210) (220) (230) (240) (See Pg.7) PARTS LIST REF.NO. C21-0111 Pg 1 NEW PARTS No. CA2-4586-000 CY1-2178-000(XXX) CY1-2497-000(280) CY1-2988-000(XXX) XA1-7200-706 XA9-1306-000 YA2-0124-000 YA2-0929-000 YA2-2067-000 YA2-2082-000 YA2-3463-000 YA2-4749-000 YG2-0528-000 CLASS QTY E E D C F F D F D E C C B 5 1 1 1 4 4 1 4 1 4 1 1 1 DESCRIPTION SCREW WASHER, MOUNT MOUNT, LENS RING, FOCUS ADJUSTMENT SCREW, CROSS-RECESS, PH SCREW, CROSS-RECESS, PH RUBBER, FRICTION SCREW, CROSS-RECESS, PH COVER, BACK COLLAR RUBBER, MOUNT WASHER, MOUNT BARREL ASS'Y, FIXED Page 1 1 1 1 1 1 1 1 1 1 1 1 1 * * * * REF. C21-0111 2 CANON LENS EF70-200mm 1:2.8L IS USM (See Pg.3) YG2-0522 YA2-4732 XA1-6170-407 x3 (See Pg.5) XA1-1200-609 x5 YA2-3613 x3 (See Pg.6) CY1-2989 XA1-1200-807 x3 XA9-1308 x3 YA2-4702 YG9-2092 N.S XA4-6170-309 x3 (CA2-5435) N.S PARTS LIST REF.NO. C21-0111 Pg 2 NEW * * PARTS No. CA2-5435-000 CY1-2989-000 XA1-1200-609 XA1-1200-807 XA1-6170-407 XA4-6170-309 XA9-1308-000 YA2-3613-000 YA2-4702-000 YA2-4732-000 YG2-0522-000 YG9-2092-000 CLASS QTY D C F F F F F F C C C C 1 1 5 3 3 3 3 3 1 1 1 1 DESCRIPTION CONTACT ASS'Y GYRO SENSOR UNIT SCREW, PH2X6 SCREW, PH2X8 SCREW, CROSS-RECESS, PH SCREW, CROSS-RECESS, PH SCREW, CROSS-RECESS, PH RUBBER, VIBRATION DAMPER SHEET, LIGHT SHIELD SCALE, FOCUSING FOCUSING UNIT PCB ASS'Y, MAIN Page 2 2 2 2 2 2 2 2 2 2 2 2 * * * * * REF.