I have a pristine Melles Griot spatial filter/collimator system with one pinhole and objectine for sale. Optics are AR coated for broadband visible. Adding up all the parts would total over $2,500 from MG but that is ridiculous; so I am asking $450 or $500 if you need the HeNe laser mountine adaptor also. Used for one project like new with MG wodden storage boxes. Nice. I accept paypal! Questions? (813) 974-2378