Ko te tirohanga he taputapu whāinga e whakamahia ana hei āwhina i te whakataurite i ngā patu tawhiti, ngā taputapu ruri whenua, ngā taputapu whakamārama whatu rānei ki te ūnga e hiahiatia ana. Ko ngā taputapu whatu e āhei ai te kaiwhakamahi ki te kite i tētahi ahua ūnga kua whakareihia te whatu kua whakaritea ki te arotahi kotahi me tētahi pūwāhi whāinga. Ka whakamahia e ngā tirohanga whatu ngā whatu e hoatu ana ki te kaiwhakamahi he ahua whakarei ake me tētahi pūwāhi whāinga kua whakaritea, he tauira rānei (e kiia ana ko te reticle) kua whakatakotoria ki runga i te ahua ūnga, ko te mea pai ko te papa arotahi kotahi.

Ko te tirohanga rēseri he taputapu e piri ana, e whakaurua ana rānei ki te pū hei āwhina i te hopu i te ūnga. Kāore i rite ki ngā tirohanga whatu me ngā tirohanga rino e titiro ana te kaiwhakamahi mā roto i te taputapu hei arotahi ki te ūnga, ka tukuna e ngā tirohanga rēseri he hihi ki runga i te ūnga, ka whakarato i tētahi pūwāhi tohutoro tirohanga. Ko te whakamahinga o ngā tirohanga rēseri e pā ana ki te pikinga o te tika i te nuinga o te wā, ka piki ake te tūponotanga o te pā ki te ūnga, inā koa i ngā āhuatanga mārama iti. Ko ngā tirohanga rēseri e whakamahia ana e ngā hōia me ngā pirihimana, ahakoa he whakamahinga ā-iwi mō te hopu manu me te tiaki i a ia anō.
I whakawhanakehia e CHANCCTV tētahi arotahi hou 70mm me te M12 mount, ā, e tautoko ana i te taumira tae atu ki te 8MP. He hoahoa karāhe katoa tōna, he roa hoki te roa o te rohe. Ina mahi ana i runga i tētahi pūoko 1/1.8″, ka hopukina e ia te tirohanga whakapae 6.25 nekehanga. Ā, he iti iho i te -1% te hē o te pouaka whakaata. He pai rawa atu tēnei arotahi mō ngā kāmera tirohanga pū, pērā i ngā tirohanga whatu me ngā tirohanga taiaho.