Lens Cap for Pentax 15mm f/3.5 Ultra-Wide Angle

This is a lens cap designed specifically for the SMC Pentax 15mm f/3.5 Ultra-Wide Angle. Since original metal caps are rare and expensive, and standard "snap-on" caps can easily scratch the finish of the metal flower hood, this model was developed to provide a secure "suction fit" using a soft neoprene lining. Key Features: Precision Suction Fit: Designed with an internal diameter of 82.2mm, perfectly calculated to host a 1mm thick neoprene strip. This creates a soft, scratch-free, yet incredibly firm grip on the 80mm lens hood. Integrated Neoprene Recess: The interior features a 14mm wide recessed track. This prevents the adhesive neoprene tape from peeling or shifting when sliding the cap on and off. More grip: The exterior boasts a classic diamond pyramid relief. Heavy-Duty Protection: With a 4mm thick bottom and a 2.5mm base wall, this cap offers serious protection for the protruding, bulbous front element of the 15mm lens. NOTE: You´ll need 1mm thick and 10mm wide Neoprene Tape (or something simmilar) for the main model. UPDATE: Without Neoprene - I have also uploaded an alternative print file (Lenscap Pentax 15mm f3-5 NO NEOPRENE recess 80-2mm dia v1-0) with a smaller inner diameter (80.2 mm) and without the recess for the neoprene. This should also work when printed with TPU (or possibly PLA). However, I would like to explicitly point out that I have not tested this version and am simply making it available in case anyone does not want to or cannot use neoprene tape.