φ55.9mm, compatible φ 2-inch lenses
φ2 Inch Adjustable Lens Sleeve
1. Adjusting the position of optical components along the optical axis in the SM2 lens sleeve system;
2. SM2 (2.035 "-40) internal and external threads;
3. Three adjustment ranges: 5mm, 13mm, 21mm;
4. Long external thread section, used for adjustable positioning of installed optical components;
5. Optical components with a thickness not exceeding 10mm can be installed.
The adjustable lens sleeve allows an optical element to be adjusted along the optical axis within the lens sleeve system. Our length adjustable sleeve is designed to accommodate a φ2-inch optical element with a maximum thickness of 10mm. For operation, the optics are installed in the inner thread section via the included SM2 clasp. Then screw the adjustable sleeve into the SM2-threaded compatible sleeve or lens mount until the optics reach the desired position, using the included locking ring to hold the sleeve in place. (Comes with 1 clasp, if you need more clasp, you need to buy additional clasp separately).
These SM2 threaded (2.035 "-40) adjustable lens sleeves have an ultra long external thread section that can φ The 2-inch optical element is positioned along the optical axis of the lens sleeve system. Different specifications of sleeves can provide different strokes for rotating optical components.
It can be installed between two fixed lens sleeves. These adjustable lens sleeves are very suitable for fine tuning the first and last lenses in a lens sleeve system. Although the lens sleeve can be connected to the front end of the adjustable lens sleeve, this operation can only be carried out after the position of the optical element is fixed. This is because if the position of the optical element changes, the length adjustable lens sleeve needs to rotate and translate freely.
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