Sida Loogu Isticmaalo Flash-kaaga Si Waxtar Leh Sawirada (Qeybta 1 ee 5) - Waxaa qoray MCP Guest Blogger Matthew Kees

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Matthew Kees waa sawir qaade iyo macalin aad u karti badan. Wuxuu ku sameynayaa taxane 5 qaybood ah 'MCP Actions Blog' oo ku saabsan Isticmaalka Flash Casri ah ee Sawirada. Waxaan ku faraxsanahay inaan la wadaago aqoontiisa iyo khibradiisa dhamaan akhristayaashayda. Casharradan ayaa bilaabmi doona hal mar toddobaad kasta. Toddobaadyada is beddelka ah, waqtiga loo oggol yahay, Matthew wuxuu eegi doonaa qaybta FAALLADA wuxuuna ka jawaabi doonaa qaar ka mid ah su'aalahaaga. Marka hubso inaad si toos ah u weydiiso su'aalahaaga qaybta faallooyinka ku saabsan qoraalkan.

Tani waa Qeybta 1 ee 5.

waxaa qoray Matthew L Kees, oo marti ku ah Blog-ka Waxqabadka MCP

Koorsada Sawirka Sawirka Tooska ah ee MLKstudios.com [MOPC]

TTL OTF Flash ("haddii kabaha uu ku habboon yahay…")

Mid ka mid ah horumarkii ugu weynaa ee soo ifbaxaya sawir qaadista ayaa yimid 1974 markii ay Olympus ku dhawaaqday kamaradooda OM-2 iyo Quick Auto 310 TTL OTF flash. Labaduba waxay ku wada shaqeeyeen "flash" mode flash.

Tan macnaheedu waxa weeye, kamaradda iyo tooshku waxay leeyihiin awood ay ku wada xiriiraan midba midka kale. Soo-saarka tooska ah waxaa xukuma "isha" ama dareemayaal, oo ku dhex jira jirka kamaradda oo akhrinaya iftiinka soo maray Lens The (TTL) oo ka booday Off The Film (OTF).

Cabbiraadda TTL OTF waxaa lagu suurta galiyay iyada oo loo marayo “dhibco” dheeri ah oo ku yaal kabaha kulul ee kamaradda oo la jaanqaaday xiriiro dheeri ah oo ku yaal cagaarshadda. Tooshka iyo kamaraddu waxay awoodeen inay "wada hadlaan" midba midka kale iyadoo loo marayo xidhiidhadaas dheeriga ah. Dareemka ku dhexjira kamaradda ayaa u sheegay flash-ka markii iftiin ku filan uu gaaray filimka intii uu socday, isla markaana uu jaray tooshka si aan iftiin dambe loo soo saarin. Natiijadu waxay ahayd soo-gaadhis toosan oo hagaagsan markasta.

Kahor inta aynaan horay u sii socon, waxaan marka hore u baahanahay inaan sharrax ka bixiyo teknoolojiyad casri ah oo duug ah.

Qaabka soo saarista nalka tooska loogu xakameeyo habka gacanta, waa iyadoo koronto sarreysa ay goyso dilaaca biriqda, ama garaaca wadnaha, wuxuu ku sii soconayaa muddo ka dheer sidii uu ku taagay goob hoose oo awood ah. Markay tahay meesha ugu sarreysa garaaca garaaca wadnuhu wuxuu soconayaa qiyaastii 1/1000 oo ilbiriqsi dheer ah - waa "saxaro" weyn oo iftiin ah. Goobta ugu hooseysa ee korantada waxay ku dhowdahay 1 / 40,000 ilbidhiqsi - in yar oo "iftiin" ah oo iftiin ah.

Markii flash casri ah lagu dhejiyo kaamerada filimka loona dejiyo qaabka TTL OTF, dareeraha OTF wuxuu saldhig u yahay muddada garaaca wadnaha ee mitirka kamaradda. Caadi ahaan, ISO ayaa lagu wadaa qiimeynta sanduuqa uu filimku soo galay. Tani waa sababta oo ah filimada hooseeya ee ISO waxay u baahan yihiin laydh ka badan si ay u sameeyaan bandhig wanaagsan marka loo eego filimada sare ee ISO.

Haddii aad rabto wax ka yar flash-ka filimka runti uu u baahan yahay, sida taabashada iftiinka banaanka, waxaad si fudud u beddeleysaa dejinta ISO ee jirka kamaradda, mid aad uga sarreysa qiimeynta sanduuqa filimka. Qiimaynta dhabta ah ee filimku dhab ahaantii isma beddelay sidaas darteed asal ahaan, waxaad nacas ku tahay dareeraha OTF adoo u maleynaya filimka la raray inuu u baahan yahay iftiin yar oo ka yar sida dhabta ah. Iftiinka iftiinka badan waxaad hoos u dhigi lahayd dejinta ISO.

Kaamirooyinka dijitaalka ah way ka duwan yihiin. Kuma khiyaanayn kartid dareemayaasha adoo beddelaya dejinta ISO. Isku hagaajinta nidaamka ISO ee SLR dijitaalka ah waxay la mid tahay isla markiiba filimka oo loo beddelo mid leh qiimeyn sanduuq cusub. Dareenka cufnaanta ayaa ku sii kordheysa dejinta ISO sare ama wuxuu hoos ugu dhacayaa ISO ka hooseeya, sidaa darteed qaabeyn toos ah oo loo yaqaan 'TTL flash flash' ayaa loo baahan yahay in la ikhtiraaco.

Nalalka casriga ah, iyo inta badan kamaradaha kamaradaha DSLR, waxay ku darsadeen habayn EV ah oo loogu talagalay iftiinka markii loo dejiyo qaabka TTL.

EV waxay u taagan tahay Qiimaha Saameynta. Markaad dejiso ISO, f / stop iyo xawaaraha shutter adigoo isticmaalaya mitirka soo-gaadhista, waxay ku saleysan tahay Qiimaha Exposure ee goobtaas. Waxaad markaa hagaajin kartaa dhalaalka muuqaalka adigoo beddelaya habka EV-ga ee jirka kamaradda. EV lagu daray ayaa goobta ka dhigaya mid iftiimaya oo EV laga jaray ayaa mugdi sii gelinaysa. Si aad u hagaajisid dhalaalka iftiinka, waa inaad beddeshaa habka EV-ga ee tooshka. Tan waxaa badanaa loo yaqaan magdhawga Flash Exposure ama FEC.

Sidaan kor ku soo sheegnay, sidoo kale waa suuragal in lagu hagaajiyo tooshka jirka kamaradda kamaradaha badan ee dhijitaalka ah, taas oo macno samaynaysa, maaddaama dareeraha xakamaynta tooshka halkaas ku yaal.

Canon wuxuu calaamadeeyaa nidaamkooda cusub ee TTL flash, E-TTL II, oo u taagan qiimaynta TTL nooca 2. Nidaamka Laydhka Hal-abuurka ee Nikon waxaa loogu yeeraa i-TTL oo loogu talagalay TTL-ga caqliga badan. Labaduba waxay awood u leeyihiin inay xakameeyaan birta kaamerada ama kudarsadaan seddex meelood meel kordhinta ah (EV = 0.3) si aad ufiican ufiican muujinta flash-ka.

Dabcan, kamaradaha dijitaalka ah ee 'Olympus' waxay leeyihiin TTL sidoo kale, sidoo kale Sony iyo qaar ka mid ah da 'yarta Minoltas, iyo sidoo kale Pentax, Panasonic, Sigma, Ricoh, Fuji iyo qiyaastii kamarad kasta oo casri ah oo la sameeyo. Iyada oo loo marayo xakamaynta tooska ah ee 'Lens flash control' waxay noqotay astaamaha caadiga u ah dhammaan nidaamyada flash / kaamarada casriga ah.

Mid ka mid ah waxyaabaha loo baahan yahay in halkan lagu xuso, ayaa ah inaadan dhigin karin aaladda 'Canon E-TTL flash' jirka Nikon (ama nooc kale) oo aanad ugu adeegsan karin qaabka TTL. Xidhiidhada la adeegsaday waxay ku yaalliin meelo kala duwan kabaha kulul. Sidoo kale si aad u isticmaasho TTL wireless-ka fog waxaad u baahan doontaa toosh ay sameeysay isla soosaaraha kamaraddaadu.

Si kastaba ha noqotee, waxaa suurtagal ah in la helo nal-dhimis dhinac saddexaad ah oo ka shaqeeya qaabka TTL markii lagu dhejiyo kamaraddaada. Metz, Sunpak, Vivitar, Osram iyo wixii la mid ah. Dhamaantood waxay sameeyaan iftiiminta TTL oo leh cagaha kala duwan ee kaamirooyinka kala duwan. Waxay sameyn jireen hal qaab oo flash ah adiguna waxaad iibsatay “cagta” aad si gooni ah ugu baahnayd. Waxaa loogu yeeri jiray adabtarada flash SCA. Hadda waxay samaystaan ​​isla qaab isku dhejis ah oo cagaha kala duwan lagu qaabeeyo. Haddii aad marto dariiqan, hubi in tooshku u calaamadeysan yahay nooca kamaraddaada. Waxaad ka heli kartaa toosh awood u leh TTL qiyaastii $ 100 USD haddii aad mid ka iibsato shirkad sameeysa nal-si gaar ah.

Nidaamyada casriga ee kamarad / TTL casri ah ayaa sidoo kale tixgelinaya dhererka foomka muraayadaha, fogaanta diiradda iyo meelaha la doortay marka la tooganayo qaabka AF. Haddii dherer kala-duwan-focal ah, ama "zoom" lens la dhajiyo, markaa dhererka focal ee zoom ayaa la isticmaalaa.

Iftiimmo badan oo cusub ayaa leh kombuyuutarro yar yar. Nikon SB-900 cusub ayaa si otomaatig ah u hagaajinaya wax soo saarkiisa qaabka dareenka sawirka iyo xitaa wuxuu leeyahay qaab lagu sameeyo qalab casriyeysan. Waxay ka yimaadeen waddo aad u dheer iyagoo si fudud kor ugu eegay filimka isla markaana u xidhaya waqtiga saxda ah. Siyaabo badan ayaa biligleyda cusubi ugu horumarsan yihiin sida kamaradda lafteeda, waana sababta ay waxoogaa uga qiimo yar yihiin kuwii ka horreeyay.

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No Comments

  1. Jennifer on November 12, 2008 at 11: 27 pm

    Ma sugi karaa qaybaha 2-5 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!

  2. Heidi on November 13, 2008 at 12: 30 am

    SOOOOOO ku faraxsan tan! Ma sugi karo wax intaas ka badan. Aad baad ugu mahadsantahay wadaagistaada.

  3. Alanna on November 13, 2008 at 5: 25 am

    Cajiib …… .mahadsanid badan!

  4. Brendan on November 13, 2008 at 8: 27 am

    Jodi, Sida maqaalka oo kale, oo waxaan necbahay in aan noqdo qof qaawan, laakiin waa qaabaynta maqaalkani, xoogaa wuu ka yara duwan yahay habkaagii caadiga ahaa ee aad u soo bandhigi jirtay qoraalka. Way yara adkaatay in la akhriyo iyada oo aan la helin sadarro. Waan ka xumahay

  5. eegid on November 13, 2008 at 9: 11 am

    Waan ku riyaaqay tan mana sugi karo qaybta xigta. Waxaan leeyahay flash oo waxaan helay sanad ka hor laakiin si dhib leh waligey uma isticmaalin. Waxaan rajeynayaa, ka dib markaan akhriyo taxanahan, inaanan ka baqaynin!

  6. Jovana on November 13, 2008 at 1: 17 pm

    Waxaan sidoo kale leeyahay flash, laakiin kaliya waligood ha isticmaalin. Waxaan rajeynayaa maqaalka soo socda.

  7. Erin on November 13, 2008 at 5: 14 pm

    Macluumaad weyn, ma bixin kartaa tixraacyo wanaagsan oo ku saabsan mitirka soo-gaadhista wanaagsan iyo halka laga helo?

  8. Ron on November 13, 2008 at 7: 23 pm

    Ditto to evie iyo Jovana… Marnaba si dhib yar ayaan waligey u adeegsadaa tooshkeyga markii aan sameeyo natiijooyinka waa sidaas. Waad ku mahadsantahay Qaybta I! Waxaan rajeyneyaa Qeybta II.

  9. Brendan on November 14, 2008 at 8: 25 am

    Waad ku mahadsan tahay Jodi dib u habeynta bogga

  10. astaan on November 15, 2008 at 7: 38 am

    Waxaan sugayay cashar sidaan oo kale ah… aad baad iiga farxisay !! sugi karin inta kale!

  11. Maandho on November 15, 2008 at 7: 53 pm

    Waxyaabo waaweyn, oo rajeynaya qaybaha soo socda sidoo kale

  12. Jennifer Urbin on November 19, 2008 at 12: 38 am

    macluumaad badan…. ma sugi karo 2-5.

  13. kiddee on April 3, 2009 at 9: 37 pm

    tan sida loo sameeyo waa mid macluumaad badan leh. Marka aan ku isticmaalo flash-ka tallaalka dheeriga ah, marwalba wey ka ifisaa wajiga. Tilmaamahan ayaa wax badan iga caawiya. mahadsanid

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