.. Lexicon: ******* Lexicon ******* Explanation of terms: ================= =============================================== Term Explantion ================= =============================================== Lenticular filter A flat filter. One of uvw2, uvm2, uvw1, u,b,v,wh V Grism Grism with peak response in the optical (420nm) UV Grism Grism optimised in the UV (260nm) ================= ===============================================