40 mm Lens Extension Ring EXT-40

MidOpt EXT-40.0 40.0mm Lens Extension Ring Includes the following Extension Ring 40.0mm EXT-40.0 About Lens Extension Rings Extension Rings are used to decrease the Minimum Object Distance (MOD) for C/CS mount lens Increase Magnification for close-up applications Available as a 6 Extension Ring Set, 4 Extension Ring Set, and in individual size ranging from 40.0mm to 100mm Manufactured by Midwest Optical Systems