Pentax / Cosmicar Lens Accessories 
Pentax / Cosmicar C90100 Extension Tube Kit C90100

Cosmicar Extension Tube Kit

Contains six different lengths of tube, which are placed between a camera and a lens for close-up applications.

Lengths: 0.5mm,1.0mm,5.0mm,10.0mm,20.0mm,40.0mm

"C" Mount