Dareen ISO. aqoon aasaasi ah

fikradda ah in dareenka ISO waa, waa mid ka mid ah xudunta u ah. Waa lagama maarmaan in xataa sawir laylis, aan, dabcan, wax lacag iyo xirfadeed.

Oo xasaasi ah ISO - waa qiyaas ah oo aragtida ah camera furta helo iftiin ah. heerka ISO High siisaa fursad ay ku qaataan sawiro deeganada leh nalalka saboolka ah. Just dhawr sano ka hor, ISO ma uu caan ku camera ah, iyo laftiisa filimka, oo loo baahan yahay in la beddelo filimka, doorashada ugu haboon image dhowr loox, iyo heerarka kala duwan ee sawir iftiinka. Maanta, sidii camera a professional (SLR iyo mirrorless) iyo hiwaayadda (digital) waxay leeyihiin shaqo ee ay gacanta ku dareen ISO Buugga iyo si toos ah, taas oo ka dhigaysa waxaa suurto gal ah in ay sameeyaan darbo la dareen kala duwan, iyaga diiwaan on kaarka isla xasuusta.

Marka nalalka waa filnayn soo sartay saxda ah ee gaadhista suurtogal ma aha had iyo jeer in ay isticmaalaan flash dibadda (iyo gudaha). Xaaladaha noocaas ah, aad leedahay inay wax ka bedesho dareen ISO ah inuu u dhaqaaqo isla on its goob si toos ah sare ama.

Intaa waxaa dheer, sixitaanka ee heerka dareenka ay kaa caawin kartaa haddii aadan kordhin kartaa xawaaraha iyo iyada oo aan la isticmaalayo Maala-a. Xaaladdan oo kale, isticmaalka qiimaha ISO sare kordhiyo xawaaraha shutter.

Si kastaba ha ahaatee, waxa uu noqon lahaa mid aad u sahlan haddii isticmaalka joogtada ah ee qiimaha ISO sare ma saamayn dhanka ah. Ka dib oo dhan, waayo, kamaradaha furta oo waxaa loogu talagalay in hab in la kordhiyo ISO dareenka kor u sida. Oo haddii ay taasi u fadhiya iftiin ma aha oo kaliya ka badan, laakiin sidoo kale waxa loogu yeero buuq.

Waxaa qeexayaa kala duwan oo ka mid ah qiyamka si mug leh xallinta ISO camera furta. The sare waa, hoose ee heerka qaylada xataa goobaha ISO ugu sareeya. Kamaradaha (iyo "SLR" iyo "Saabuun") furta tani ma aha wax ka yar 2.3 "ayaa lagu wadaa in ugu weyn.

Tani waxay la fahamsan yahay waa in si looga hortago in fikrad khaldan si caddaalad ah wax caadi ah oo mararka qaar dhacaya bilowga ah: Ha u malaynina in megapixels dheeraad ah ee camera ah, si fiican ay tahay. Just tiro xad sare oo megapixels in saarayaasha qaar ka mid ah ayaa isku dayaya in ay ku riday kamaradaha galay furta, si weyn hoos ugu dhigi kartaa tayada images eego dhacdo ee qaylada xad-dhaafka ah. Sidaas daraaddeed ha ka Faydno waxa aan rumaysan advertising ah.

Sidaas darteed, in uu toogto qiyamka ISO ugu badnaan noqon karaa oo kaliya marka ay tahay waa laga caddeeyey:

• Haddii ay jirto doorasho u dhexeeya in loo sameeyo sawir leh ee buuqa ama aadan ku soo gani.
• Haddii xaaladaha toogashada hana u oggolaan in isticmaalka flash.
• Haddii aad debed u daabac photos of format yar, taas oo buuq durba waa ma dareemi.
• Haddii ay suurogal tahay in la yareeyo heerka qaylada by daaweynta.

toogashada A in meel bannaan oo ku filan daarmayaay'e Nuur doorashada si mug leh - dareen ISO ayaa la aasaasay at qiimaha ugu yar. Taasi waxa ay heli doontaa sawirada fiican.