Zum Hauptinhalt wechseln

Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony

Was du brauchst

  1. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony, Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 1, Bild 1 von 1
    • Put the lens on the table the way you can access the buttom screws.

    • Unscrew the black screws near the contact plate and from the black inner ring (which stands between the optical lens and the top outer ring).

  2. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 2, Bild 1 von 1
    • Remove the inner ring.

    • Unscrew the screw from the top outer ring.

  3. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 3, Bild 1 von 2 Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 3, Bild 2 von 2
    • Remove the top outer ring.

    • Remove the little shaft with the focus gear and the multiple rings that hols the shaft.

  4. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 4, Bild 1 von 1
    • Unscrew the screws that hold the top plastic ring (which is part of the lens body) and remove it.

    • Unscrew the screws that hols microchip plate.

    • Unscrew the screws that attach lens outer body part to the inner optical part.

  5. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 5, Bild 1 von 1
    • Now you should be extra aware and do the next operation very carefully!

    • Remove the inner optical part from the outer body part of the lens.

    • Try to memorize the way the parts were inserted one into another (when assembilng the lens I have lost a lot of time figuring out how the optical part should be fitted into the outer body part).

    • Put the optical part away very carefully without putting it upside down.

    • DO NOT TRY TO DISASSAMBLE THE OPTICAL PART.

  6. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 6, Bild 1 von 1
    • Remove the zoom ring.

  7. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 7, Bild 1 von 1
    • Unscrew the screw which were hiding under the zoom ring (see right part of this picture).

    • Remove the top part from the fosing ring (focusing ring is on the left part of this image).

  8. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 8, Bild 1 von 2 Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 8, Bild 2 von 2
    • Now you can clearly see the reason of the problem.

    • If tou are not sure you can accomplish the further repair steps you order a replacement focus ring and reassemble the lens in the reverse order.

  9. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 9, Bild 1 von 2 Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 9, Bild 2 von 2
    • Take the stapple block and detach some stapples from it (I actually used 2 of them)

    • Cut one stapple leg away from the stapples.

  10. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 10, Bild 1 von 1
    • Use a dremmel tool to remove the broken cog (I have removed 2 of them).

    • Use a small flathead screwdriver to make 2 small grooves on the flat surface of a ring right behind the removed cogs have been placed.

  11. Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 11, Bild 1 von 2 Repairing Focus ring on Sigma 70-300mm F4-5.6 DG Macro for Sony: Schritt 11, Bild 2 von 2
    • Use a soldering iron to solder the previously prapared stapples into the focus ring.

    • Put some super glue over the soldered stapples.

Abschluss

To reassemble your device, follow these instructions in reverse order.

9 weitere Nutzer:innen haben diese Anleitung absolviert.

Pavel

Mitglied seit: 07/03/14

378 Reputation

1 Anleitung geschrieben

6 Kommentare

I dismounted the lens to make the repair and unintentionally I DISASSAMBLE THE OPTICAL PART and now I can not ride back. chaos

Ricardo Morais - Antwort

Video da sökme ve takma kısımları var.

YILMAZ BOZACI -

Thank you so much for posting this.

It helped me to fix my focus ring. In my case the teeth on the ring were not damaged, but a small piece of some broken plastic was blocking the ring from moving smoothly.

Thanks!

Shlomsi - Antwort

I am very thankful to You, as just repaired my Sigma by this method.

Thank You very much!

egidijus1972 - Antwort

I have a Sigma DG 70-300 zoom. Problem: zoom part comes all the way out and will not go back in and lock in place . Can it be fixed? John polley

John Polley - Antwort

Kommentar hinzufügen

Seitenaufrufe:

Letzte 24 Stunden: 2

Letzte 7 Tage: 15

Letzte 30 Tage: 82

Insgesamt: 20,938