supply and installation of optics and optomechanics supply and installation of optics and optomechanics , main item , translational stages , non-polarizing beam splitter ( 50:50 ) , achromatic lenses [ as per technical specification point 3 ( 2 for each focal length ) ] , post [ as per technical specification point 4 ( 20 for each height ) ] , post holder [ as per technical specification point 5 ( 20 for each height ) ] , right angled post , kinematic mounts , lens mount , lens mount with rings , aluminum mirrors , silver mirrors , premium bandpass filters [ as per technical specification point 12 ( 01 for each wavelenght ) ] , filter wheel , short pass filters [ as per technical specification point 14 ( 01 for each wavelenght ) ] , long pass filters [ as per technical specification point 15 ( 01 for each wavelenght ) ] , ring actuated iris , beam blocker , adapter screw box , m6 set screw box , m6 cap screw box , m4 set screw box , breadboard , rails , rails [ as per technical specification point 23a ] , tube lens , right-angle bracket with clear aperture , rail plate , vacuum pickup pen , mounting adapters , cage plate stopper , cage assembly rod ( 8 inch ) , cage assembly rod ( 12 inch ) , hex key adjuster