
Posted: Tue Oct 23, 2018 8:52 pm
http://camera-wiki.org/wiki/Ciro-flex
Is it loose on both lens?
Sheet felt and yarn are readily available at craft and yard goods stores.
Measure the outside diameter of the lens and the inside diameter of the lens cap then divide the difference by 2 to find the thickness of the material needed to be bonded to the edges of the cap to get it to fit snugly.