* Shrewd Long Sunshades * Optum, Nomad, Mini Mag Scope Models - 29 35 40 42 Size
For the Optum models it will fit BOTH to the Optum Ring System and the Optum Lens Housing. The Optum 29, Optum 35, Mini Mag 29 & Nomad 35 extends about 1". The Optum 40 & Nomad 42 extends about 1 3/16".