RingPark — JLF-09

Collect step-up and step-down rings between lens changes. Tapered post and wide dish keep loose rings together without threading them. MEASURE FIRST: Rings with clear inner diameter at least 44 mm and outer diameter no more than 90 mm. USE: Slide loose metal rings down the post; do not tighten threads against the print. Includes one printed part in matte black PLA. Accessories are not included. Dry indoor bench use only. No physical tests of fit, stability or durability. Images are CAD renders. Design: João Lutz / JoaoLutzFilm, developed with AI assistance. Original CAD.