Since　microlenses　have　to　date　been　fabricated　primarily　by　surface　manufacturing,　they　are　highly　susceptible　to　surface　damage,　and　their　microscale　size　makes　it　cumbersome　to　handle.　Thus,　cavity　lenses　are　preferred,　as　they　alleviate　these　difficulties　associated　with　the　surface-manufactured　microlenses.　Here,　it　is　shown　that　a　high　repetition　femtosecond　laser　can　effectively　fabricate　cavity　microball　lenses　(CMBLs)　inside　a　polymethyl　methacrylate　slice.　Optimal　CMBL　fabrication　conditions　are　determined　by　examining　the　pertinent　parameters,　including　the　laser　processing　time,　the　average　irradiation　power,　and　the　pulse　repetition　rates.　In　addition,　a　heat　diffusion　modeling　is　developed　to　better　understand　the　formation　of　the　spherical　cavity　and　the　slightly　compressed　affected　zone　surrounding　the　cavity.　A　micro-telescope　consisting　of　a　microscope　objective　and　a　CMBL　demonstrates　a　super-wide　field-of-view　imaging　capability.　Finally,　detailed　optical　characterizations　of　CMBLs　are　elaborated　to　account　for　the　refractive　index　variations　of　the　affected　zone.　The　results　presented　in　the　current　study　demonstrate　that　a　femtosecond　laser-fabricated　CMBL　can　be　used　for　robust　and　super-wide　viewing　micro　imaging　applications.