สถานที่กำเนิด
Henan, China
หมายเลขรุ่น
JL-Lens holder
focal length
fit for M12 lens with 0.5mm to 25mm long
Hole distance
18mm 20mm 22mm etc
Hole diameter
2x 1.5mm screw or 2x1.6mm or others
Out diameter
13.1x13.1mm as as the details drawing
Bottom height
3.6(2.75) as drawing