Ko te nuinga o te wā, ka taea te hanga i te reti o te pokepokea kirihou ki te maitai 45#, ka tineia, ka whakamahanahia kia nui ake te ātete ki te kakahu. Ko te tūranga o te pou arataki piko ka taea te tū ki mua, ki muri rānei, ka taea te whakatau ngāwari i runga i te rahi o te pokepokea. Heoi, me whakatau te koki me te roa o te pou arataki piko i runga i te tawhiti neke o te reti; ko te nuinga o te wā, ko te koki o te pou arataki piko he 20°, 25° rānei. Mā te whakatau i tētahi koki pumau ka taea te whakahaere i te hanga rino papa piko, kia kore ai e hiahiatia i ia wā. Hei hanga i ngā haona piko o ngā koki rerekē. Whakamahia te ture cosine o ngā mahi trigonometric hei tatau i te roa o te pou arataki piko.

He maha ngā momo maimoatanga mata o te pokepokea ai, ko ngā mea noa ko te mata maeneene me te mata pokapoka, arā, ko ngā pānga mata me hanga kia rite ki te hiahia o te kiritaki.
Ka taea te whakamahi i ngā taumata katoa o te whakaotinga mata i roto i tā mātou wheketere.

Ko te tikanga o te turanga pokepokea paerewa he mea hanga te turanga pokepokea ki te rauemi P20, ā, ko te pokepokea he mea hanga ki te hangarau anga whakaata. E whakamahia whānuitia ana mō ngā pokepokea kaweake. Ko te painga o tēnei whakamahinga, mēnā he raruraru kei te pokepokea, ka taea te whakatika mā te whakakapi noa i ngā wāhanga, he pai ake tēnā.