M52x0.75 male to M19x0.75 female thread adapter (52mm to 19mm step-down ring)

• Front side - M19x0.75 female thread
• Rear side - M52x0.75 male thread
• Max. diameter - 57 mm
• Distance between flanges - 4 mm
• Weight - 20 g

This adapter allows using microscope objectives with M19x0.75 thread in front of lenses with M52x0.75 filter thread (for macrophotography purposes).

Made of high quality aluminium alloy.