Disassembling Sigma 24-70mm F2.8 EX DG Macro Lens Zoom bearing

Written By: Rimvydas

Comments: 2

Disassembling Sigma 24-70mm F2.8 EX DG Macro Lens Zoom bearing

Difficulty

Moderate

Steps

Time Required

2 hours

Introduction

Autofocus bearings were stuck, I could only focus between 0 to 0.5m.
This guide will roughly show you how to reach a part which moves the lens and makes it to zoom and focus.

Tools

Phillips Screwdriver

Step 1

Camera lens are delicate and intricate. Be careful with the disassembly and work slowly.
Take the lens away from camera
DO NOT FORGET: THAT YOU ARE DOING ALL ON YOUR OWN RESPONSIBILITY

Step 2

Unscrew the top part and detach it.
Unjoin cables. Be careful; they're delicate, and easily torn.
Try to avoid touching sensitive electronic components.
Unfasten the screws that hold the circuit board in place, and separate it from the rest of the lens assembly.

Step 3

Take away zoom rubber and you will find srews

Step 4

Keep unscrewing and removing the parts until you reach what you need to fix.
Zoom bearing can be taken away by unscrewing its srews.

Step 5

Here is one of the parts which was broken, so I go to camera repair shop, and bought that parts. As this was not the only part broken, I had to leave for additional repair.
When you finish you can put all back together

Bonjour
Ou peut on trouver les vis pour réparer ce zoom ?
Merci

Bob -

Hi, I would try going to your closest camera repair shop and ask if they have something like this.
Otherwise use calipers and try searching online, but thats going to take forever.

Rimvydas -