22/05/13The Full Well Capacity ndi kuchuluka kwa siginecha yomwe yadziwika yomwe pixel iliyonse imatha kukhala nayo, ndikudziwitsa chizindikiro chowala kwambiri chomwe kamera imatha kuzindikira isanakwaniritsidwe. Ngati pixel yadzaza chifukwa chodzaza pixel bwino, mphamvu ya pixelyo siijambulidwanso molondola. Kuchuluka kwa chitsime chonse ndi mwayi pamapulogalamu omwe amafunikira mitundu yayikulu yosinthira.
Chithunzi 1 chikuwonetsa ubale womwe ulipo pakati pa chitsime chathunthu ndi mawonekedwe osinthika. Chithunzi 1A : Kutsika kwa chitsime chochepa kumapangitsa chithunzicho kutaya chidziwitso cha zizindikiro zowala. Chithunzi 1B : Kuchuluka kwa chitsime chokwanira kumapangitsa chithunzicho kupeza chidziwitso chonse kuchokera ku zofooka mpaka zizindikiro zowala.
Ma photon akazindikiridwa panthawi yomwe chithunzi chikuwonekera, amamasula ma electron mkati mwa silicon, omwe amasungidwa mu pixel bwino mpaka kuwerenga. Pixel ili ndi ma elekitironi ochulukirapo omwe amatha kusungidwa sitolo yakuthupi isanadzale, kapena mtengo wa digito wa greyscale ufika pachimake. Moyenera, nthawi yowonekera ndi milingo ya kuwala iyenera kukhazikitsidwa kotero kuti izi zisaloledwe kuchitika. Komabe, pamene zizindikiro zonse zapamwamba ndi zotsika zimawonekera pachithunzi chofanana, kugwiritsa ntchito nthawi yocheperako kapena kuwala kwa kuwala kungathe kutulutsa zizindikiro zotsika kwambiri kuti zizindikire kapena kuyeza m'madera amdima a chithunzi chifukwa phokoso limasokoneza zizindikiro zofooka. Chitsime chokwera kwambiri chimalola nthawi yowonekera kwambiri kapena kuyatsa kuti muzindikire ma siginecha amdima, osatulutsa ma siginecha apamwamba. Kuti mumve zambiri za Dynamic Range, onani 'Dynamic Range' glossary gawo.
Ngati mumagwira ntchito pamalo opepuka kwambiri, kapena ngati kusinthasintha sikuli vuto lalikulu pamalingaliro anu, kukwanira bwino sikungathandize kwambiri kudziwa magawo anu a kamera. Makamera ena ali ndi njira zingapo zowerengera zowerengera, zomwe zimapereka mawonekedwe osiyanasiyana, mawonekedwe aphokoso, komanso chitsime chonse. Kwa makamera awa, kusinthanitsa nthawi zambiri kumakhala kotheka komwe mitengo yapamwamba yamakamera imatha kupezedwa posinthana ndi kuchepetsa kupezeka kwa chitsime chathunthu, choyenera pa liwiro lalitali, zowonera zochepa.
