S8056-2 astronomical telescope ultra-thin filter frame 11mm ultra-thin filter drawer

S8056-2 astronomical telescope ultra-thin filter slot ultra-thin filter drawer
Filter drawer frame only: 11MM (M42 external thread length not included)
M48 * 0.75 internal thread, thread length: 3.5mm
M42 * 0.75 external thread, thread length: 3mm, size: 76 * 76 * 11mm
Net weight: 120g
Maximum filter diameter: 47.5mmX2 minimum diameter, 45mm × 2