The Close Focus Adaptors (CF1, 2 & 3) allows the extension of the flange distance between the lenses and camera, which creates a very short depth of field and magnified image much like a Macro lens.
When CF1 is used with the TLS CSP 100mm lens the adapter achieves a 1:1 macro ratio.
CF1 - CL-001
CF2 - CL-002
CF3 - CL-003