{"id":918,"date":"2016-11-26T00:23:45","date_gmt":"2016-11-25T21:23:45","guid":{"rendered":"http:\/\/www.teknolojidergisi.net\/?p=918"},"modified":"2016-11-26T00:23:58","modified_gmt":"2016-11-25T21:23:58","slug":"kayan-yildizi-fotograflamak-imkansiz-degil","status":"publish","type":"post","link":"https:\/\/www.teknolojidergisi.net\/?p=918","title":{"rendered":"Kayan Y\u0131ld\u0131z\u0131 Foto\u011fraflamak \u0130mkans\u0131z De\u011fil"},"content":{"rendered":"

Geceleri g\u00f6ky\u00fcz\u00fcne bakt\u0131\u011f\u0131m\u0131zda bir\u00e7ok y\u0131ld\u0131z g\u00f6r\u00fcr\u00fcz. \u015eehir \u0131\u015f\u0131klar\u0131ndan uzak ve zifiri karanl\u0131k bir yerde, \u00e7\u0131plak g\u00f6zle bile g\u00f6rebilece\u011finiz y\u0131ld\u0131z say\u0131s\u0131 4 bin kadard\u0131r. Oysa galaksimizde yakla\u015f\u0131k olarak 320 milyar tane y\u0131ld\u0131z vard\u0131r. Bunlardan D\u00fcnya\u2019ya en yak\u0131n olan y\u0131ld\u0131z ise 150 milyon km uzakl\u0131kta bulunan ve \u0131\u015f\u0131\u011f\u0131 8 dk\u2019da ula\u015fan G\u00fcne\u015f\u2019tir. G\u00fcne\u015f\u2019ten 2450 kat daha b\u00fcy\u00fck olan Kutup Y\u0131ld\u0131z\u0131 ise 430 \u0131\u015f\u0131k y\u0131l\u0131 uzaktad\u0131r. Ve bu y\u0131ld\u0131zlar devasa teleskoplar ile incelenip foto\u011fraflan\u0131yorken, kolayl\u0131kla kullanabilece\u011finiz DSLR foto\u011fraf makinesi ile foto\u011fraflayabilirsiniz.<\/span><\/p>\n

G\u00f6ky\u00fcz\u00fcndeki y\u0131ld\u0131zlar\u0131 g\u00f6zle g\u00f6r\u00fcnd\u00fc\u011f\u00fc gibi hareketsiz olarak \u00e7ekebilece\u011finiz gibi, uzun s\u00fcre pozlama yaparak D\u00fcnya\u2019n\u0131n kendi ekseni etraf\u0131nda d\u00f6nme hareketi ve G\u00fcne\u015f etraf\u0131nda dolanma hareketi yapmas\u0131 nedeniyle y\u0131ld\u0131zlar\u0131n g\u00f6ky\u00fcz\u00fcnde d\u00f6n\u00fcyormu\u015f gibi g\u00f6r\u00fcnmelerini de \u00e7ekebilirsiniz. Canon tutkunu foto\u011fraf sanat\u00e7\u0131s\u0131 Berkin Tuncar\u2019\u0131n verdi\u011fi bilgilerle y\u0131ld\u0131zlar\u0131 foto\u011fraflamak imkans\u0131z de\u011fil…<\/span><\/p>\n

1 \u2013 Karanl\u0131k mekan yeterli<\/b><\/span><\/p>\n

Y\u0131ld\u0131z foto\u011fraf\u0131 \u00e7ekebilmenin en \u00f6nemli noktas\u0131 iyi bir mekan bulabilmektir. \u00c7ekim yap\u0131lacak mekan ne kadar karanl\u0131ksa, foto\u011fraflanabilecek y\u0131ld\u0131z say\u0131s\u0131 da o kadar fazla olacakt\u0131r. Genellikle \u015fehir \u0131\u015f\u0131klar\u0131ndan uzak, \u0131ss\u0131z ve do\u011fada \u00e7ekim yapmak tercih edildi\u011fi i\u00e7in \u00e7ekim g\u00fcn\u00fc \u00f6ncesinde \u00f6nce mutlaka hava ayd\u0131nl\u0131kken gidilip hem g\u00fcvenlik hem de kadraj i\u00e7in g\u00f6zlem yap\u0131lmal\u0131.
<\/span><\/p>\n

2 \u2013 Dolunaya dikkat!<\/b><\/span><\/p>\n

\u00c7ekim mekan\u0131n\u0131 bulduktan sonra \u00e7ekim tarihini \u201cAy\u201d\u0131n durumuna g\u00f6re belirlemeniz sa\u011fl\u0131kl\u0131 olacakt\u0131r. Ay\u2019\u0131n hi\u00e7 do\u011fmad\u0131\u011f\u0131, erken saatlerde batt\u0131\u011f\u0131 ya da ge\u00e7 saatlerde do\u011fdu\u011fu geceleri tercih edebilirsiniz. \u00c7\u00fcnk\u00fc \u00f6zellikle Dolunay zaman\u0131 ay \u0131\u015f\u0131\u011f\u0131 g\u00f6ky\u00fcz\u00fcn\u00fc fazlas\u0131yla ayd\u0131nlatt\u0131\u011f\u0131 i\u00e7in hem y\u0131ld\u0131zlar\u0131n g\u00f6r\u00fcnmesi zorla\u015facak hem de pozlama s\u00fcresi olduk\u00e7a d\u00fc\u015fecektir. Ayr\u0131ca mutlaka bulutsuz havalar tercih edilmelidir.<\/span><\/p>\n

3 \u2013 Geni\u015f a\u00e7\u0131 lens vazge\u00e7ilmezi<\/b><\/span><\/p>\n

Mekan\u0131 belirleyip \u00e7ekim g\u00fcn\u00fcn\u00fc de se\u00e7tikten sonra s\u0131ra ekipman haz\u0131rl\u0131\u011f\u0131na geliyor. Manzara foto\u011fraf\u00e7\u0131l\u0131\u011f\u0131n\u0131n vazge\u00e7ilmezi olan geni\u015f a\u00e7\u0131 lensler y\u0131ld\u0131zlar\u0131 foto\u011fraflamak i\u00e7in de vazge\u00e7ilmez ekipmanlardan biridir. \u00d6zellikle de a\u00e7\u0131k diyaframa sahip olanlar\u2026 Bunun d\u0131\u015f\u0131nda pozlama s\u00fcreleri uzun olaca\u011f\u0131 i\u00e7in makine ve objektifin dakikalarca bask\u0131s\u0131na cevap verecek ve r\u00fczgardan etkilenmeyecek sa\u011flam bir \u00fc\u00e7 aya\u011fa ihtiya\u00e7 duyabilirsiniz. Ve pozlamam\u0131z\u0131 ba\u015flat\u0131p bitirmemiz i\u00e7in de kablo deklan\u015f\u00f6r ve ya uzaktan kumandan\u0131z\u0131 yan\u0131n\u0131za almal\u0131s\u0131n\u0131z.<\/span><\/p>\n

Ek olarak \u00e7antan\u0131z\u0131n \u00e7inde mutlaka bir el feneri ya da kafa feneri bulunmal\u0131. Yedek batarya, yedek haf\u0131za kart\u0131, pusula, hatta harici fla\u015f\u0131n da yan\u0131n\u0131za ald\u0131\u011f\u0131n\u0131z ekipmanlar aras\u0131nda olmas\u0131na dikkat edin, ihtiyac\u0131n\u0131z olabilir.<\/span><\/p>\n

4 – Kutup Y\u0131ld\u0131z\u0131 \u00e7ekimi<\/b><\/span><\/p>\n

Genellikle y\u0131ld\u0131z izi pozlamalar\u0131nda en \u00e7ok tercih edilen Kutup Y\u0131ld\u0131z\u0131 etraf\u0131nda di\u011fer y\u0131ld\u0131zlar\u0131n d\u00f6nme hareketini \u00e7ekmektir. Kutup Y\u0131ld\u0131z\u0131 d\u00fcnyan\u0131n ekseni ile hemen hemen ayn\u0131 do\u011frultuda oldu\u011fundan g\u00fcn boyu yer de\u011fi\u015ftirmez ve hep kuzeyi g\u00f6sterir. Di\u011fer y\u0131ld\u0131zlar\u0131n da g\u00f6ky\u00fcz\u00fcndeki yerleri sabittir. D\u00fcnya\u2019n\u0131n kendi ekseni etraf\u0131nda d\u00f6nme hareketi ve g\u00fcne\u015f etraf\u0131nda dolanma hareketi yapmas\u0131 nedeniyle y\u0131ld\u0131zlar g\u00f6ky\u00fcz\u00fcnde d\u00f6n\u00fcyormu\u015f gibi g\u00f6r\u00fcn\u00fcr. D\u00fcnyan\u0131n d\u00f6nme ekseninin kuzeydeki, yani bulundu\u011fumuz yar\u0131m k\u00fcredeki uzant\u0131s\u0131 Kutup Y\u0131ld\u0131z\u0131\u2019ndan ge\u00e7er; bu nedenle sadece Kutup Y\u0131ld\u0131z\u0131\u2019n\u0131n g\u00f6ky\u00fcz\u00fcndeki yeri sabittir. Bulundu\u011fumuz yar\u0131m k\u00fcreden, di\u011fer y\u0131ld\u0131zlar\u0131n Kutup Y\u0131ld\u0131z\u0131 etraf\u0131nda daireler \u00e7izerek d\u00f6nd\u00fc\u011f\u00fcn\u00fc g\u00f6rebiliyoruz.<\/span><\/p>\n

Pusula yard\u0131m\u0131 ile kutup y\u0131ld\u0131z\u0131n\u0131 bulduktan sonra \u00fc\u00e7 aya\u011f\u0131 al\u00e7ak seviyede a\u00e7\u0131p, \u00fczerine koydu\u011funuz makinenizin objektifini o y\u00f6ne \u00e7evirin, objektifi manuel olarak sonsuz netlemeye alabilirsiniz.<\/span><\/p>\n

Uzun pozlama \u00e7ekime ba\u015flamadan \u00f6nce hem netlik hem de kadraj kontrol\u00fc i\u00e7in ISO de\u011ferini olduk\u00e7a y\u00fckseltip 20-30 saniyelik k\u0131sa bir \u00e7ekim yapabilirsiniz. LCD ekran \u00fczerinden g\u00f6r\u00fcnt\u00fcy\u00fc detayl\u0131ca inceleyip uzun pozlamaya ondan sonra ge\u00e7ebilirsiniz.<\/span><\/p>\n

Yapt\u0131\u011f\u0131n\u0131z bu k\u0131sa pozlaman\u0131n kadraj kontrol\u00fc d\u0131\u015f\u0131nda ba\u015fka bir \u00f6zelli\u011fi daha bulunuyor. 20 saniye pozlama ve pozlama bitiminde LCD ekranda g\u00f6r\u00fcnt\u00fcy\u00fc hemen g\u00f6remiyorsan\u0131z makinenizin \u201cNoise Reduction\u201d (NR) \u00f6zelli\u011fi a\u00e7\u0131kt\u0131r. NR \u00f6zelli\u011fi foto\u011fraftaki g\u00fcr\u00fclt\u00fcy\u00fc azalt\u0131p haf\u0131za kart\u0131na o \u015fekilde yaz\u0131yor. Dolay\u0131s\u0131yla neredeyse \u00e7ekim s\u00fcresi kadar temizlik yap\u0131ld\u0131\u011f\u0131ndan vakit kayb\u0131 oluyor. O y\u00fczden y\u0131ld\u0131z pozlamalar\u0131nda \u201cHigh ISo Speed Noise Reduction\u201d, \u201cLong Exposure Noise Reduction\u201d ve \u201cActive D-Lightning\u201d gibi t\u00fcm \u00f6zellikleri devre d\u0131\u015f\u0131 b\u0131rakmal\u0131s\u0131n\u0131z.<\/span><\/p>\n

5 – Makinede son kontroller<\/b><\/span><\/p>\n

Kadraj\u0131n\u0131z\u0131n d\u00fczg\u00fcn ve net, makinenizin t\u00fcm \u00f6zellikleri kapal\u0131, \u00fc\u00e7ayak yere sa\u011flam bas\u0131yorsa makineyi son kez kontrol edip fenerlerinizi s\u00f6nd\u00fcrerek \u00e7ekime ba\u015flayabilirsiniz. \u00d6ncelikle y\u00fckseltti\u011finiz ISO\u2019yu tekrar d\u00fc\u015f\u00fcrmek gerekir. Perde h\u0131z\u0131 ayar\u0131 \u201cB\u201d-Bulb modunda, diyafram ayar\u0131m\u0131zda objektifin elverdi\u011fi en a\u00e7\u0131k F de\u011ferinde olmal\u0131. F:2.8, F:3.5 ve F:4 yeterli olacakt\u0131r. Foto\u011fraflar\u0131 mutlaka RAW format\u0131nda \u00e7ekecek olman\u0131za ra\u011fmen ben yinede beyaz ayar\u0131n\u0131 \u201cTungsten\u201d olarak ayarlaman\u0131z tavsiye edilir. AUTO beyaz ayar\u0131 g\u00fcn \u0131\u015f\u0131\u011f\u0131na yak\u0131n Kelvin de\u011ferleri vererek g\u00f6ky\u00fcz\u00fcn\u00fcn turuncuya yak\u0131n bir renkte g\u00f6r\u00fcnmesine sebep oluyor. Uzaktan kumanda \u00e7ekim ayar\u0131na ald\u0131ktan sonra da tek yapmam\u0131z gereken t\u00fcm \u0131\u015f\u0131k kaynaklar\u0131n\u0131z\u0131 kapatarak kumandan\u0131n d\u00fc\u011fmesine basmak\u2026<\/span><\/p>\n

Muhtemelen en g\u00fczeli, y\u0131ld\u0131zlar\u0131 kutup y\u0131ld\u0131z\u0131 etraf\u0131nda d\u00f6nd\u00fcrmek olsa da, farkl\u0131 kadrajlar ile farkl\u0131 g\u00f6r\u00fcnt\u00fcler elde etmek de m\u00fcmk\u00fcn. \u00d6rne\u011fin, Kutup Y\u0131ld\u0131z\u0131\u2019n\u0131 \u00e7ekti\u011finiz kadraj\u0131 180 derece ters tarafa \u00e7evrilmesi durumunda \u00e7ok farkl\u0131 bir g\u00f6r\u00fcnt\u00fc elde edebilirsiniz. \u00c7\u00fcnk\u00fc bir g\u00fcney y\u0131ld\u0131z\u0131 olmad\u0131\u011f\u0131 i\u00e7in , Kutup Y\u0131ld\u0131z\u0131 etraf\u0131nda sa\u011fa d\u00f6nen y\u0131ld\u0131zlar ile sola d\u00f6nen y\u0131ld\u0131zlar g\u00fcney de kesi\u015ferek birbirlerine z\u0131t izler b\u0131rak\u0131rlar.<\/span><\/p>\n

Uzun s\u00fcre pozlama ile y\u0131ld\u0131z izlerini g\u00f6r\u00fcnt\u00fcledikten sonra, g\u00f6rd\u00fc\u011f\u00fcn\u00fcz g\u00f6r\u00fcnt\u00fcy\u00fc hatta Samanyolu\u2019nu da foto\u011fraflamak isterseniz ne yapman\u0131z gerekir? Bunun i\u00e7in kullanabilece\u011finiz ekipman da olduk\u00e7a uygundur. ve 2.8 diyafram a\u00e7\u0131kl\u0131\u011f\u0131nda lensler Samanyolu\u2019nu g\u00f6r\u00fcnt\u00fclemek i\u00e7in olduk\u00e7a idealdir. 4 diyafram a\u00e7\u0131kl\u0131\u011f\u0131nda lens kullan\u0131yorsan\u0131z pozlamay\u0131 biraz daha uzun tutmal\u0131s\u0131n\u0131z. Uzun tutman\u0131n da dezavantaj\u0131 y\u0131ld\u0131zlar\u0131n noktadan ziyade hareketlenip virg\u00fcl g\u00f6r\u00fcn\u00fcm\u00fcne d\u00f6n\u00fc\u015fm\u00fc\u015f olmas\u0131d\u0131r. Bu y\u00fczden 500 say\u0131s\u0131n\u0131 \u00e7ekim yapt\u0131\u011f\u0131n\u0131z objektifin mm\u2019sine b\u00f6l\u00fcp, \u00e7\u0131kan saniye kadar \u00e7ekim yapmak y\u0131ld\u0131zlar\u0131 nokta gibi foto\u011fraflamak i\u00e7in idealdir. Y\u0131ld\u0131z izleri i\u00e7in kullanabilece\u011finiz d\u00fc\u015f\u00fck iso yerine, bu sefer y\u00fcksek bir iso kullanmal\u0131s\u0131n\u0131z. Civar \u0131\u015f\u0131k kirlili\u011fine g\u00f6re 800 ve \u00fczeri iso tercih edebilirsiniz.<\/span><\/p>\n

6 – Tost tekni\u011fi nedir?<\/b><\/span><\/p>\n

Her zaman diledi\u011finiz zifiri karanl\u0131\u011f\u0131 bulamayabilir, y\u0131ld\u0131z izlerini uzatamayabilirsiniz. Bu gibi durumlarda ise Tost Tekni\u011fini kullanabilirsiniz. Bu teknik ard\u0131 ard\u0131na \u00e7ekilmi\u015f foto\u011fraflar\u0131n edit program\u0131 ile birlikte \u00fcst \u00fcste konmas\u0131 ile olu\u015fuyor. Time lapse kumanda kullanarak Samanyolu foto\u011fraf\u0131 \u00e7eker gibi, a\u00e7\u0131k diyafram ve y\u00fcksek iso ile (genelde 400 ve 800) hi\u00e7 ara vermeden 30\u2019ar saniyelik foto\u011fraflar \u00e7ekilir. Birle\u015ftirmek i\u00e7in internetten kolayca bulabilece\u011fimiz \u00fccretsiz edit programlar\u0131n\u0131 kullanabilirsiniz.<\/span><\/p>\n

7 – Kayan y\u0131ld\u0131zlar\u0131 foto\u011fraflama<\/b><\/span><\/p>\n

Bir \u00e7o\u011fumuzun g\u00f6r\u00fcp dilek tuttu\u011fu, y\u0131ld\u0131z kaymas\u0131; asl\u0131nda boylar asl\u0131nda boylar\u0131 1 mm civar\u0131nda olan kuyruklu y\u0131ld\u0131z tozlar\u0131n\u0131n yerden 80 km yukar\u0131da hava ile temas etmesi ile yan\u0131p parlamas\u0131d\u0131r. \u00c7ok nadir olsa da baz\u0131 tarihlerde kuyruklu y\u0131ld\u0131z kal\u0131nt\u0131lar\u0131 D\u00fcnya\u2019nun \u00e7ok yak\u0131n\u0131ndan ge\u00e7er. Perseid, Leonid, Geminid meteor ya\u011fmurlar\u0131 en bilinenler aras\u0131nda yer al\u0131r. \u00d6zellikle 12-13 A\u011fustos en yo\u011fun olan Perseid meteor ya\u011fmurunda saatte 100\u2019e yak\u0131n meteor izlemek m\u00fcmk\u00fcn. Bunlar\u0131n \u0131\u015f\u0131klar\u0131 \u00e7ok az oldu\u011fu i\u00e7in hepsinin foto\u011frafta \u00e7\u0131kmas\u0131 m\u00fcmk\u00fcn olmuyor.<\/span><\/p>\n

Meteor \u00e7ekimleri i\u00e7in, meteorlar\u0131n daha fazla olaca\u011f\u0131 y\u00f6n\u00fc \u00f6\u011frenip kadraj\u0131 o y\u00f6ne \u00e7evirerek tost tekni\u011fi kullanabilirsiniz. Hem y\u00fcksek iso sayesinde daha az \u0131\u015f\u0131kl\u0131 olan meteorlar\u0131 yakalamak daha kolay olacak hem de sonras\u0131nda t\u00fcm foto\u011fraflar\u0131 birle\u015ftirerek y\u0131ld\u0131z izi olu\u015fturma imkan\u0131n\u0131 yakalayabilirsiniz.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Geceleri g\u00f6ky\u00fcz\u00fcne bakt\u0131\u011f\u0131m\u0131zda bir\u00e7ok y\u0131ld\u0131z g\u00f6r\u00fcr\u00fcz. \u015eehir \u0131\u015f\u0131klar\u0131ndan uzak ve zifiri karanl\u0131k bir yerde, \u00e7\u0131plak g\u00f6zle bile g\u00f6rebilece\u011finiz y\u0131ld\u0131z say\u0131s\u0131 4 bin kadard\u0131r. Oysa galaksimizde yakla\u015f\u0131k olarak 320 milyar tane y\u0131ld\u0131z vard\u0131r. Bunlardan D\u00fcnya\u2019ya en yak\u0131n olan y\u0131ld\u0131z ise 150 milyon km uzakl\u0131kta bulunan ve \u0131\u015f\u0131\u011f\u0131 8 dk\u2019da ula\u015fan G\u00fcne\u015f\u2019tir. G\u00fcne\u015f\u2019ten 2450 kat daha b\u00fcy\u00fck olan Kutup Y\u0131ld\u0131z\u0131 ise 430 \u0131\u015f\u0131k y\u0131l\u0131 uzaktad\u0131r. Ve bu y\u0131ld\u0131zlar devasa teleskoplar ile incelenip foto\u011fraflan\u0131yorken, kolayl\u0131kla kullanabilece\u011finiz DSLR foto\u011fraf makinesi ile foto\u011fraflayabilirsiniz. G\u00f6ky\u00fcz\u00fcndeki y\u0131ld\u0131zlar\u0131 g\u00f6zle g\u00f6r\u00fcnd\u00fc\u011f\u00fc gibi hareketsiz olarak \u00e7ekebilece\u011finiz gibi, uzun s\u00fcre pozlama yaparak D\u00fcnya\u2019n\u0131n kendi ekseni etraf\u0131nda d\u00f6nme hareketi ve G\u00fcne\u015f etraf\u0131nda<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-918","post","type-post","status-publish","format-standard","hentry","category-fotograf"],"_links":{"self":[{"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/posts\/918"}],"collection":[{"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=918"}],"version-history":[{"count":2,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/posts\/918\/revisions"}],"predecessor-version":[{"id":920,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=\/wp\/v2\/posts\/918\/revisions\/920"}],"wp:attachment":[{"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.teknolojidergisi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}