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Sony Alpha DSLR- A850 Focusing Screen Replacement

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  1. Sony Alpha DSLR- A850 Focusing Screen Replacement, Focusing Screen: step 1, image 1 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement, Focusing Screen: step 1, image 2 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement, Focusing Screen: step 1, image 3 of 3

    • Push in the button next to the lens.

    • While holding the button twist the lens counter-clockwise.

    • Pull up and remove lens from camera.

    Edit

  2. Sony Alpha DSLR- A850 Focusing Screen Replacement: step 2, image 1 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 2, image 2 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 2, image 3 of 3

    • Inside toward the top you will find a small slit in the plastic piece.

    • Insert a flat head screw driver into the slit and pull down to access the focusing screen.

    Edit

  4. Sony Alpha DSLR- A850 Focusing Screen Replacement: step 3, image 1 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 3, image 2 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 3, image 3 of 3
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Using tweezers grab the focusing screen on the side by the two tabs that are on it.

    • Do not grab the focusing screen in the middle as this will damage it.

    • Pull out and remove focusing screen from camera.

    Edit

  5. Sony Alpha DSLR- A850 Focusing Screen Replacement: step 4, image 1 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 4, image 2 of 3 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 4, image 3 of 3

    • When inserting new screen make sure to orient it where the two tabs are facing towards you with the smaller tab facing up.

    • Angle the focusing screen to make installation easier.

    • Lay the new focusing screen into the plastic tray.

    • It does not snap into place.

    Edit

  6. Sony Alpha DSLR- A850 Focusing Screen Replacement: step 5, image 1 of 2 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 5, image 2 of 2

    • Insert screw driver into the slit and push up to close.

    • You can also use your thumb, if you are careful not to touch the screen as this could leave a smudge on it.

    • You will hear a click when the plastic tray is back in place.

    Edit

  7. Sony Alpha DSLR- A850 Focusing Screen Replacement: step 6, image 1 of 2 Sony Alpha DSLR- A850 Focusing Screen Replacement: step 6, image 2 of 2

    • When re-installing the lens line up the orange dots that are one both lens and camera.

    • Fit lens into place and turn clockwise to secure it back to camera.

    Edit
Conclusion

You have now completed a focusing screen replacement.

One other person completed this guide.

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