----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, March 22, 2004 3:40 AM Subject: Will adjusting the iso on the af280t give me fill flash
> If i use manual exposure(PZ-1 and SP being used) and set the 280t to manual and if using > iso 100 > film,set the back of the flash to either iso 200 or 400,will this lessen the out put to > just add a bit of fill to > the face shadows. > Or is there another method you like. Found this on a back up CD from 4 years ago. Once in a while I am organized.... William Robb The following is an excerpt from: "MANUAL FILL FLASH FOR DUMMIES" Copyright 1993, 1999, 2000 By Suda Mafud FILL FLASH FOR DUMMIES Copyright 1993 By Matt Greene [MANUAL] FILL FLASH FOR DUMMIES [finding correct flash to subject distance] & [finding correct apertures] MANUAL FILL FLASH [when needing to determine the correct aperture] *Set flash sync *Take ambient reading *Divide ambient reading f/stop into flash GN to establish correct flash to subject distance. The results = "bright" [1 to 1] fill. *Moving the flash back exactly HALF the "bright" fill distance gives [2 to 1] "normal" fill. *Moving the flash back exactly TWICE the "bright" distance gives [3 to 1] fill. *Example: Ambient f/stop = f/16 Guide Number = 130 / = 8.125 \ Example: Ambient f/stop = f/11 Guide Number = 180 / = 16.363 FEET. Example: Ambient f/stop = f/5.6 Guide Number = 120 / = 21.42 / MANUAL FILL FLASH [when needing to establish a correct shooting aperture] *When you know the precise flash to subject distance, use this: *Set flash sync Divide the flash Guide Number by the known flash to subject distance to find the proper aperture. *Example: Guide Number = 140/flash to subject distance = 15 *140 divided by 15 = 9.33 or f/9.5 *Example: Guide Number = 175/flash to subject distance = 20 *175 divided by 20 = 8.75 or f/8 or f/9.5 Copyright 1993-1997 by Matt Greene Zawadi Imaging & Media All rights reserved
