Gano Length Multiplier na Kamara Ƙira

Sake tsawon mita 35mm zuwa kyamarori na APS-C

Wasu kyamarori na dijital suna buƙatar mai da hankali don ƙara tabbatar da cewa mai daukar hoto yana samun kusurwar ra'ayi da ake tsammani. Wannan kawai ya zama factor lokacin da daukar hoto ya sauya daga fim zuwa dijital, kuma an yi canje-canje zuwa kyamarori masu yawa na DSLR wanda ya shafi yawan tsinkayen ruwan tabarau.

Idan aka haɗa kyamarar dijital tare da ruwan tabarau, yana da muhimmanci mu san ko mahimmanci mai zurfi ya kamata a yi la'akari da shi - zai iya tasiri sosai a cikin ruwan tabarau da ka saya domin kuna iya sayen ruwan tabarau wanda bai dace da bukatun ku ba.

Mene ne Maganin Length Multiplier?

Yawancin kyamarori na DSLR sune APS-C, wanda ake kira fannin kyamara na dabba . Wannan yana nufin cewa suna da ƙaramin firikwensin (15mm x 22.5mm) fiye da yankin 35mm (36mm x 24mm). Wannan bambanci ya zo a cikin wasa lokacin da yake magana akan ƙaddarar ruwan tabarau mai zurfi .

An yi amfani da nau'in fim na 35mm a matsayin ma'auni a daukar hoto don sanin ƙayyadadden ruwan tabarau wanda yawancin masu daukan hoto suka saba. Alal misali, an yi amfani da 50mm a matsayin al'ada, 24mm ne mai faɗi-kusurwa, kuma 200mm shi ne telephoto.

Tun da kyamarar APS-C yana da ƙananan hoton firikwensin, mai da hankali na tsawon wadannan ruwan tabarau dole ne a canza ta amfani da mahimmanci mai yawa.

Ana ƙayyade Maɗaukaki Length Magnifier

A mai da hankali tsawon multiplier ya bambanta tsakanin masana'antun. Wannan zai iya bambanta ta hanyar kamara, kodayake yawancin masana'antun kamar Canon yana buƙatar ka ninka ruwan tabarau 'mai zurfi ta x1.6. Nikon da Fuji suna amfani da x1.5 kuma Olympus yayi amfani da x2.

Wannan yana nufin cewa hoton zai kama wata alama wadda ta fi sau 1.6 a karami fiye da abin da za'a kama tare da fim 35mm.

Tsinkayar da yawa mai yawa ba shi da wani tasiri akan tsinkayen ruwan tabarau da aka yi amfani dashi tare da DSLR mai cikakke saboda wadannan kyamarori suna amfani da wannan tsari azaman fim 35mm.

Duk wannan ba dole ba ne ya nufin cewa kuna ninka goshin ruwan tabarau ta hanyar girman girman mai da hankali; a gaskiya, da daidaituwa ya dubi wani abu kamar haka:

Tsarin Maɗaukaki Tsarin ÷ ÷ Maɗaukaki Mai Girma Mai Girma = APS-C Tsarin Laka

A cikin yanayin Canon APS-C tare da x1.6 zai yi kama da wannan:

50mm ÷ 1.6 = 31.25mm

Hakanan, idan kuna saka idanu na APS-C a kan jikin kyamara mai cikakken tsari (ba a shawarce shi ba saboda za ku sami vignetting ), to, za ku ninka ruwan tabarau ta hanyar girman mai da hankali. Wannan zai ba ka cikakken-frame mai da hankali tsawon.

Ka yi tunani game da kallo

Ya fi game da kusurwar ra'ayi dangane da kama kama da ainihin tsinkaye na ruwan tabarau, don haka 50mm ruwan tabarau ne ainihin ƙananan ruwan tabarau a kan APS-C.

Wannan shi ne kalubale ga masu daukan hoto wanda ke amfani da fim 35mm na tsawon shekaru kuma yana daukan lokaci don kunyi tunanin wannan sabon hanyar tunani. Yi damuwa tare da kusurwar kallo na ruwan tabarau maimakon tsayin daka.

Ga wasu nau'o'in ruwan tabarau na yau da kullum don ganin taimako tare da fassarar:

Fitar da Maɓallin Intanit

Don kauce wa wannan matsala, yawancin kamfanonin kyamara yanzu suna samar da ruwan tabarau na "dijital" wanda kawai ke aiki tare da kyamarorin APS-C.

Wadannan ruwan tabarau suna nuni da tsayin daka na yau da kullum, kuma har yanzu suna buƙatar maida hankali don yawan amfani da su, amma an tsara su ne kawai don rufe sassa na firikwensin da ake amfani dashi daga kyamarori masu siffofi.

Yawancin lokaci suna da kyau sosai kuma sun fi dacewa fiye da kamaran kamara na al'ada.