Archived posting to the Leica Users Group, 2004/03/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Eric, If you have a manual flash then the appropriate Fstop for the flash is based on distance of the flash to the subject (based on guide number or power output of the flash). The drill would be set ambient exposure making sure your shutter speed is not higher than the flash synch speed, focus, check distance/Fstop on the flash, reset ambient exposure so the Fstop corresponds to what the flash needs. This is a lot easier if you have a flash with variable power like the old Vivitar 283's or a lot of the Metz units. In the modern age, if you have a TTL flash system, the camera adjusts the flash so you get fill without thinking. Don dorysrus@mindspring.com - -----Original Message----- From: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of eric Sent: Tuesday, March 02, 2004 10:27 PM To: LUG Subject: [Leica] Ambient light + Strobe metering question A photo technique book I was reading has a chapter on using a strobe for fill light. As an example, the author discussing an ambient lit scene which meters f 5.6 at 1/125 sec He then discusses the use of a strobe set to output of 5.6 and varying the shutter speed to add or subtract ambient light. Question: When shooting outdoors and metering a scene (ambient light + strobe), how do I isolate the f stop output of the strobe? Do I meter ambient light, then meter ambient light + strobe and use the difference to figure my flash output? Do I just subtract f stops to figure the flash output? thanks, flash newbie Eric. - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html