Njengoko kusaziwa, wethu 57x 850mm ubude-uluhlu lokusondeza ikhamera incinci ngobukhulu (kuphela i-32cm ubude, ngelixa iimveliso ezifanayo ngokubanzi zingaphezulu kwe-40cm), zikhaphukhaphu ngobunzima (6.1kg kwiimveliso ezifanayo, ngelixa imveliso yethu iyi-3.1kg), kwaye iphezulu ngokucaca (malunga ne-10% ephezulu kumgca wokuvavanya ukucaca ) xa kuthelekiswa nohlobo olufanayo 775mm lens zoom motorized. Ngaphandle kobuninzi - itekhnoloji yonxibelelaniso lwamaqela kunye noyilo oludibeneyo, enye into ebaluleke kakhulu kukusetyenziswa koyilo lwelensi ye-aspherical.

Ziziphi iingenelo zokusebenzisa iilensi ze-aspherical kwiilensi ze-telephoto?

Ukuphelisa ukuphambuka okungqukuva

Iilensi ezingqukuva zinokubangela ukujika kwe-spherical, okuthetha ukuba umgangatho womfanekiso ongahambelaniyo phakathi kombindi kunye neencam zelensi. Iilensi ze-aspherical zinokulungisa oku kuphambuka kungqukuva, okukhokelela kumfanekiso ocacileyo nofana ngakumbi.

Ukuphucula umgangatho wokukhanya

Iilensi ze-aspherical zinokuphucula umgangatho we-optical system, okwenza umfanekiso uchaneke ngakumbi. Banokunciphisa i-aberration efana ne-coma, i-curvature yentsimi, kunye ne-chromatic aberration, ngaloo ndlela iphucula ukuchaneka kwe-imaging kunye nokuhambelana.

Ukwandisa isisombululo

Ukusetyenziswa kweelensi ze-ofpherical kwandisa isisombululo, ukuvumela umboniso othe kratya weenkcukacha. Banokunciphisa ukusasazeka kokukhanya kunye ne-chromatic aberration, ngaloo ndlela baphucula ukucaca komfanekiso kunye nokubukhali.

Ukunciphisa ubunzima be-lens kunye nobukhulu

Xa kuthelekiswa neelensi zesiqhelo ezingqukuva, iilensi ze-aspherical zinokuba mncinci, ngaloo ndlela zinciphisa ubunzima kunye nobukhulu be-lens, zenze izixhobo zekhamera zibe lula kwaye zithwale ngakumbi.

Ukwandisa ukuguquguquka kuyilo lwelensi

Ukusetyenziswa kweelensi ze-aspherical kunika abaqulunqi beelensi inkululeko engakumbi kunye nokuguquguquka. Ziyakwazi ukuyilwa ngokweemfuno ze-imaging ezithile ukufezekisa iziphumo ezingcono zomfanekiso.

Isishwankathelo, ukusetyenziswa kweelensi ze-aspherical kunokuphucula umgangatho womfanekiso, ukwandisa isisombululo, ukunciphisa ubunzima kunye nobukhulu, kwaye unikeze ukuguquguquka okukhulu kwi-design lens. Ezi mpawu zibenza babe yinxalenye eyimfuneko kwiilensi ze-telephoto.

Ngexesha elifanayo, iilensi ze-aspherical zibiza kakhulu, ngoko ke namhlanje iilensi ezininzi zombane zombane azisebenzisi iilensi ze-aspherical ukwenzela ukunciphisa iindleko.