M19 19x0.75mm Female to M42 42x1mm Male Thread All Mount Adapter Ring M19-M42

Features:
Name: M19-M42 adapter ring
Material: aluminum alloy
Internal thread (Female) : 19mmx0.75mm
External thread (Male) : 42mm x 1mm

Package:
1* M19-M42 adapter
Note: This product is used to change the lens mount, and cannot be used directly.