Metal Step Down Ring Adapter Set - 82-77mm to 43-46mm - Lens Filter Mount

ADPLO M58 to M58 Mount Lens Adjustable Focusing Helicoid Macro Tube Adapter - 36mm to 90mm

C-mount Extension Tubes,0.5mm-50mm optional thickness

Macro Extension Tube Set - Manual Focus for Sony NEX E-Mount Cameras A7 A5100

Lens Adapter Ring M25 to M42 Screw Mount - For M25 25mm x 0.5 Lenses

C Mount (25mm 0.75mm) to M42 (42mm 1mm) Lens Mount Adapter - Male to Female Coupling Ring

Autofocus Macro Extension Tube for Sony NEX E-Mount Cameras - Pixco

Macro Extension Tube M65 to M65 - 36mm-90mm Helikoid Ring Adapter - Focus Helikoid Mount

Macro Extension Tube Kit - 10mm 16mm Auto-Focus Metal Set - for Sony NEX E-Mount Cameras