FlashGuideNumber
Flash Guide Number Calculator
Flash Guide Number Calculator
Calculate the required aperture for flash photography based on guide number, distance, ISO, and power level.
Etung cahya lampu kilat nggunakake nomer pandhuan kanggo lampu kilat isi lan fotografi lampu kilat sing ora ana kamera.
Key Features
Panjelasan lan petungan nomer panuntun lampu kilat
Hubungan jarak-kanggo-aperture kanggo cahya sing bener
GN = aperture × aplikasi rumus jarak
Pengaruh ISO ing nomer pandhuan efektif
Ngurangi kanggo mumbul lan difusi
Kacepetan sinkronisasi lampu kilat lan pertimbangan kacepetan rana
Nomer Panuntun Lampu kilat
Ngukur Jarak
Nemtokake jarak saka lampu kilat menyang subyek ing meter utawa kaki
Etung Aperture
Dibagi nomer pandhuan kanthi jarak kanggo nemtokake f-stop sing dibutuhake
Akun kanggo ISO
Nyetel kanggo setelan ISO beda; ISO sing luwih dhuwur nambah nomer panuntun efektif
Coba Modifiers
Ngurangi nomer pandhuan nalika nggunakake diffusers utawa bouncing (biasane 1-2 mandeg)
Setel kamera
Setel aperture ing kamera lan gunakake kacepetan rana sing cocog kanggo cahya sekitar
Use Cases
Isi lampu kilat kanggo potret ruangan kanthi lampu latar
Fotografi lampu kilat ing njaba kamera kanthi eksposur manual
Fotografi acara kanthi cahya sekitar minimal
Teknik lampu kilat kreatif kanthi bouncing lan difusi
Frequently Asked Questions
Apa nomer pandhuan?
Nomer sing nuduhake kemampuan lampu kilat ing ISO 100. Angka sing luwih dhuwur tegese lampu kilat luwih kuat.
Kepiye carane ngetung aperture saka nomer pandhuan?
Dibagi GN kanthi jarak. Kanggo jarak GN 50 lan 10 kaki: 50 ÷ 10 = f/5, gunakake aperture f/5.6.
Apa nomer panuntun ganti karo ISO?
Efektif ya. Ing ISO 400, sampeyan bisa nggunakake bukaan cilik (2 mandeg) nalika ing ISO 100.
Pira difusi nyuda nomer pandhuan?
Diffusers biasane nyuda GN kanthi 1-2 mandheg. Mumbul bisa nyuda 2-3 mandheg gumantung saka permukaan.
Apa kacepetan sinkronisasi lampu kilat?
Kacepetan rana maksimal (biasane 1/200 nganti 1/320 detik) ing ngendi tirai sinkronisasi kamera ngidini cahya lampu kilat lengkap.
Tool Information
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