Ukuba udidekile ngu-"IS" onokuthi uhlawulelwe ekupheleni kwegama lekhamera yedijithali ocingayo, awuyedwa. INGXELO, xa isetyenziswe ngekhamera yedijithali, ifutshane ne "ubuchwepheshe bokuzinza imifanekiso," evumela ikhamera ukuba ikuncede ukunciphisa iifoto eziphazamisayo ukusuka kwintetho yekhamera.
Nangona ukuxiliswa komfanekiso wekhamera akusiyo entsha, iikhamera zedijithali zamanqaku aphezulu ngoku zibandakanya ubuchwepheshe be-IS. Njengoko i-IS iba yanda kakhulu, kubalulekile ukwazi ukuba uyithengani, njengoko ukuzinza komfanekiso kufumaneka kwiinkqubo ezimbalwa ezahlukeneyo.
Ukuqulunqwa kwezinto eziphambili zekhamera yekhamera yedijithali kuku:
- Optical IS
- Digital IS
- I-Dual YES
I siseko
I-teknoloji ye-stabilization technology isebenzisa i-hardware okanye isofthiwe ngaphakathi kwekhamera yedijithali ukunciphisa imiphumo yokugungqiswa kwekhamera okanye ukunyakaza. Ukugqithiswa kwekhamera kubonakala xa usebenzisa i-lens ende yokulonda okanye xa udubula kwiimeko eziphantsi, apho i- speed shutter yekhamera kufuneka ihambe ngokukhawuleza ukuvumela ukukhanya okungakumbi ukuba kufinyelele kwisixhobo somfanekiso wekhamera. Ngokukhawuleza ukuvala isivinini, naluphi na ukugubha okanye ukugubha okwenzeka ngekhamera kuphakanyiswa, ngezinye izikhathi kubangela iifoto ezintle. Nokuba ukuhamba kancane kwesandla sakho okanye ingalo kungabangela ukugqithisa okuncane.
I-IS ayikwazi ukukhusela yonke ifoto ephazamisayo-njengokuba isifundo sihamba ngokukhawuleza kwisantya se-shutter esisebenzisayo-kodwa isebenza kakuhle ngokulungisa ukugqithisa okubangelwa ukunyakaza okufutshane komfaki-zithombe (ungazivumi; le ngxaki ngezinye iinkhathi). Abaqikeleli be-IS banokukuvumela ukuba ujikelele izicwangciso zesantya ezithintekayo kwizitshixo ezithe gqithanga kunokuba ungenayo ngaphandle kwe-IS.
Ukuba awunayo ikhamera enika isistim esihle sokuzinza umfanekiso, kufuneka uzame ukudubula ngesivinini esivinini sokuvala, esinokuba nzima kwiimeko eziphantsi zokukhanya. Zama ukwandisa i-ISO setting yakho yekhamera ukuze ukwazi ukudubula ngesivinini esivinini sokuvalela ekukhanyeni okuphantsi ukuba ukulungiswa kwekhamera ayiyikunika iziphumo ozifunayo.
Optical IS
Iimakhamera zedijithali zedijithali ezijoliswe kubalingisi bezithombe eziqalayo kunye nabangaphakathi, ukuqina komfanekiso wecala (ngezinye iinkcukacha ukufutshane kwi-OIS) yi-technologies ekhethiweyo ye-IS.
I-Optical IS isebenzisa izilungiso ze-hardware ukunyanzela ukugubha kwekhamera. Omnye umenzi unomlinganiselo othile wokuphumeza i-OP, kodwa ezininzi iinkhamera zedijithali eziqulethe ukuzinzisa imifanekiso zisebenzisa i-gyro sensor eyakhelwe kwikhamera enokulinganisa nayiphi na intshukumo evela kumfaki-zithombe. Inzwa ye-gyro ithumela imilinganiselo yayo ngokusebenzisa ukuzinzisa i-microchip ukuya kwiCCD, ehamba kancane ukuba ihlawule. I-CCD, okanye ifowuni edibeneyo, urekhoda umfanekiso.
Ukulungiswa kwehardware efumaneka nge-optical IS yindlela echanekileyo yokuzinza imifanekiso. Akufuneki ukwandisa ubuzwe be-ISO, obuya kunciphisa umgangatho wesithombe.
Digital IS
Ukuqiniswa komfanekiso wokudibanisa kubandakanya ukusetyenziswa kwesoftware kunye nezicwangciso zekhamera zedijithali ukwenzela ukunciphisa imiphumo yokuxhamla kwekhamera. Okubalulekileyo, idijithali iyandisa ukwanda kwe-ISO, oko kukulinganisa ubuzwe bekhamera ekukhanyeni. Ngekhamera ikwazi ukudala umfanekiso ukusuka ekukhanyeni okungaphantsi, ikhamera iyakudla ngokukhawuleza ukuvala isivinini, okunciphisa ukugqithisa kwi-camera shake.
Nangona kunjalo, idijithali ihlala iphezulu ngaphezu kobukhulu be-ISO ngaphaya kwento yokuzenzekelayo kwikhamera ithi kufanele ibe yimiqathango yokukhanyisa kwesohlwayo esithile. Ukwandisa ububele be-ISO ngaloo ndlela kunokunciphisa umgangatho womfanekiso, okwenza ingxolo engaphezulu kwisandi somfanekiso naliphi inani leepekseli ezilahlekileyo ezingabhalwanga kakuhle. Ngamanye amagama, ukucela ikhamera ukuba izame ukudala umfanekiso kwiisethingi ezingaphantsi kwe-ISO zinganciphisa izinga lomfanekiso, kwaye yiyiphi idijithali.
Ezinye iikhamera zibhekisela kwi-digital image stabilization ukuchaza isicatshulwa esakhelwe kwikhamera yedijithali ezama ukunciphisa i-blur emva kokuba uthathe isithombe, esifana nento ongayenza ngayo isofthiwe yokuhlela umfanekiso kwikhompyutha yakho. Olu hlobo lwenkcazelo yedijithali lusetyenziswa kancinci phakathi kwazo zonke iintlobo zesimo sokuzinza, nangona kunjalo.
I-Dual YES
I-Dual IS ayilona kulula ukuyifaka, njengoko abavelisi bachaza ngokuhlukileyo. Inkcazo eqhelekileyo yokuzinzisa imifanekiso emibini iquka ukudibanisa kwezinto ze-hardware ukuzinza (njengoko kufumaneka kwi-IS ebonakalayo) kunye nokwanda kwe-ISO (njengokuba kufumaneka nge-digital IS).
Ngamanye amaxesha, ukuzinza komfanekiso kusetshenziselwa ukuchaza ukuba i-SLR yedijithali (i-lens reflex eyodwa) ikhamera iqukethe iteknoloji yokuzinza imifanekiso kwimizimba yekhamera kunye nakwii- lens zayo eziguquguqukayo
Ukusebenza ngaphandle kwe-IS
Ezinye iikhamera zedijithali ezindala aziboneli naluphi uhlobo lwe-IS. Ukuthintela ikhamera yedijithali engabonisi ukuzinza komfanekiso, zama ezi ngcebiso:
- Yenza intaba yakho ikhamera kwi-tripod.
- Sebenzisa i-viewfinder yekhamera, kunokuba i-LCD, ukuyibeka ifowuni.
- Zigcine njengoko udubula ngokuxhomekeka eludongeni okanye kwisango.
- Gubungela iingqamlezo zakho kwicala lomzimba wakho kwaye ubambe ikhamera ngezandla ezimbini.
- Ukudubula ngesivinini sokuvala ngokukhawuleza lonke ixesha, okusoloko kusenokwenzeka.
I-Don & # 39; t Yenza i-Fooled
Ekugqibeleni, qiniseka ukuba uyayiqonda kakuhle into oyithengayo xa kuziwa ekuzinzeni umfanekiso kwikhamera yakho yedijithali. Abanye abakhiqizi, ingakumbi abo abanamathotho aphantsi, baya kusebenzisa imigaqo ephosakeleyo, njengendlela ye-anti-blur okanye iteknoloji ye-anti-shake, ukuzama ukufihla into yokuba ikhamera yabo yedijithali ayinikezeli. Iikhamera ezinjalo zivame ukwandisa isivinini se-shutter ukukhawulela imifanekiso ephosakeleyo, ngezinye izihlandlo ebangela ezinye iingxaki zokungcola, ngaleyo ndlela ziphazamise umgangatho womfanekiso.
Njengengcaciso eyongeziweyo, abanye abenzi bekhamera zedijithali banegama elithile lenkcazelo ye-image ebonakalayo yokuqiniswa komfanekiso, okuqhubekayo izinto ezinzima kwi-shopper (ngokungathi sidinga ukudideka okungakumbi). Ngokomzekelo, ngezinye izikhathi i-Nikon isebenzisa "Ukunciphisa iVibration," kunye ne-Sony ngezinye izikhathi isebenzisa "Super Steady Shot" ukubhekisela kwi-IS ebonakalayo. I-Canon idale uhlobo lozinzo lwesimo esoloko lubhekisela kwi-Intelligent IS.
Ngaphambi kokuthenga imodeli ethile, qinisekisa ukuba igama lalo libizo libhekisela kwi-IS ebonakalayo kwaye ayikho uhlobo lwe-digital IS. Ufanele ukwazi ukufumana olu lwazi kwiwebhusayithi yomenzi okanye kumthengisi othembekileyo kwivenkile yekhamera.
Iimakhamera ezininzi zedijithali zanamhlanje ziquka kuphela i-OP ebonakalayo okanye ziquka uhlobo oluthile lwe-IS elibili, ngoko ukufumana ikhamera efanelekileyo ukuhlangabezana neemfuno zakho zokuzinzisa imifanekiso akuyona into ebalulekileyo yenkxalabo njengoko kwakunokwenzeka iminyaka emininzi edlulileyo. Sekunjalo, ukuba nesistim esihle sokuzinza imifanekiso kubaluleke kakhulu kwimpumelelo yakho yekhamera yedijithali ukuba ibalulekile ukubheka ngokuphindwe kabini ikhamera inomxholo ophezulu. Ungakulibali ukujonga uluhlu lweenkhamera zeenkcukacha zolu hlobo lwesimo sokuzinza esifumaneka!