はじめに
Had an issue with this lens where it would retract after zooming and there was a rattling from inside the lens so I decided to take it apart.
If possible, try to work in an environment with minimal dust. The goal is to try to avoid dust from getting inside of the lens as much as possible.
必要な工具と部品
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As with all canon EF style lenses, the first step is to remove the two screws holding the terminals to the lens.
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Remove the four screws holding the lens mount to the lens.
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Gently remove the inner plastic ring from the outer metal lens mount to free the terminals.
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Pull up on the plastic outer barrel that covers the back of the lens (there are no screws holding this part on).
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The two ribbon cables plugged into the brown and beige connector are locked in. You must gently lift the locking flap up before you can remove the cables.
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Gently unplug the remaining four ribbon cables from the main PCB board.
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Remove the one screw holding the PCB board to the lens and set it to the side.
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During my disassembly these two tiny screws appeared along with this metal bar. Turns put this was the cause of my issues. I found where it belongs and screwed it back in.
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Assembly is these steps but backwards. Be sure when reassembling the lens housing make sure to line up the black rod with the 2 prong silver fork or your zoom will no longer work.
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To reassemble your device, follow these instructions in reverse order. Be sure to line up the black rod with the 2 prong silver fork when putting the lens back with the housing.
To reassemble your device, follow these instructions in reverse order. Be sure to line up the black rod with the 2 prong silver fork when putting the lens back with the housing.
2 の人々がこのガイドを完成させました。
添付文書
1件のガイドコメント
Hi Alex,
Hope you read this any time soon :)
How long would you say it took you to disassemble and reassemble the whole lens?
Techs from Canon just sent me an estimate for the repair of my Canon 24-70 and they're asking me 633€ for the repair which consists in changing a whole piece (not sure if there's any soldering involved) and the time for it is 4h25... would you say it's reasonable?!
Thanx for your reply.
Cris