Phase One 240 mm Lens Focus Lock Guide

Phase One Industrial
240 mm Lens
Focus Lock Guide
STRICTLY PRIVATE & CONFIDENTIAL
2016
1
Overview
The Schneider-Kreuznach 240 mm F4.5 lens is integrated with a unique focus lock mechanism.
By default the focus is calibrated and locked to infinity.
In order to re-calibrate the focus, follow this procedure.
The following tools are required:
3
• 2 mm hex key
• 5 mm hex key
1
1.
2.
3.
Locking screw
Pressure screw
Focus ring
2
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Adjusting the Focus Lock
1. Unscrew the locking screw with the
2 mm hex key.
*Do not remove the screw completely.
2. Repeat this action for all remaining
locking screws in a sequential manner
(either clockwise or counter-clockwise.)
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3
Adjusting the Focus Lock
3. Unscrew the pressure screw with the
5 mm hex key.
*Do not remove the screw completely.
4. Repeat this action for all remaining
pressure screws in a sequential manner
(either clockwise or counterclockwise.)
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4
Adjusting the Focus Lock
5. Change the focus mode from auto
focus to manual by sliding the focus
ring towards the camera body.
6. Set the desired focus by rotating the
focus ring.
7. Set the focus ring to "Auto Focus"
mode by sliding it away from the
camera body.
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5
Adjusting the Focus Lock
1
8. Tighten the pressure screws with a 5 mm hex
key using a torque of 20 cNm.
Follow the order shown in the photo on the
right.
6
3
4
5
2
9. Take a picture to make sure the correct focus
is set.
10. Tighten the locking screws with a 2 mm hex
tool using a torque of 20 cNm.
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