He ʻōnaehana kānana pololei loa me kahi kiko hau kaomi haʻahaʻa e like me 2-5°C, ka nui o ka aila ≤0.001PPM, a me ka pololei o ke kānana ʻāpana o 0.01µm, e hoʻopau loa ana i ka haumia o ka lens a hoʻopau i ka pilikia o ka pau ʻana o ka lens.
I hoʻolālā kūikawā ʻia no ka ʻoki ʻana i ka laser, hoʻokō ka hopena kaomi kiʻekiʻe 16-20bar i nā pono ʻoki o ke kila kalapona waena a me ka mānoanoa a me nā papa kila kila kila, e hāʻawi ana i ke kaomi ea kūpono, nā ʻoki ʻole slag, a me nā ʻili laumania.