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| Code | 667390 | Type | Zoom Sleeve | |
| Material | 304 stainless steel and 6061-T6 aluminum alloy | Maximum optical component thickness | 11.7mm | |
| Applicable optical component diameter | Ø25.4mm | Included retaining ring | SM1R / 1 piece | |
| Travel distance | 5mm | Thread | SM1 internal thread and SM1 external thread | |
| Adjustment precision | 0.25mm/turn |
Applicable optical component diameter: 25.4 mm
Maximum optical component thickness: 11.7 mm
Travel distance: 5 mm
Adjustment precision: 0.25 mm/turn
With SM1 internal and external threads
The LBTEK high-precision SM1 Zoom Sleeve features an SM1 internal thread in the center hole, allowing optical components to be mounted using the included SM1R retaining ring. It is typically used to mount optical components with a diameter of Ø25.4 mm and a maximum thickness of 11.7 mm. The sleeve offers a 5 mm travel distance, with an adjustment precision of 0.25 mm/turn. The sleeve also has SM1 external threads, enabling it to be directly screwed into optical mechanical components with SM1 internal threads, such as SM1 lens tubes.
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