Archived posting to the Leica Users Group, 2002/12/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Greg, GUIDE NUMBER divided by CAMERA TO SUBJECT DISTANCE = F-STOP for a 100 ASA film: 125/15 feets= 8. So for a 400 ASA would be 16 Good Luck, Rafael - ----- Original Message ----- From: "Greg J. Lorenzo" <gregj.lorenzo@shaw.ca> To: <leica-users@mejac.palo-alto.ca.us> Sent: Sunday, December 29, 2002 7:14 AM Subject: Re: [Leica] Using Electronic Flash With a IIIF > Hi Rafael, > > For 100 iso Guide No. 125, 50 iso is 89, 25 iso is 62. In all cases > about 1/3 less for "wide angle". > > Regards, > > Greg > > Rafael Alday wrote: > > >What is the guide number of the flash ? > >Rafael > >----- Original Message ----- > >From: "Greg J. Lorenzo" <gregj.lorenzo@shaw.ca> > >To: <leica-users@mejac.palo-alto.ca.us>; <leica@topica.com> > >Sent: Sunday, December 29, 2002 1:41 AM > >Subject: [Leica] Using Electronic Flash With a IIIF > > > > > >>I rarely use flash but I want to try it out with my IIIF Red Dial. Can > >>someone confirm whether I have figured out the flash sync correctly? > >>Shooting will be indoors with Tri-x, flash is electronic and there is > >>some ambient lighting. Distance is between 10 - 15 feet (2 to 3 meters). > >> > >>I should use a shutter speed of 1/50th and set the sync dial to #20. I > >>suspect I will need to use f11 or f16 at this distance with 400 iso film? > >> > >>TIA. > >> > >>Regards, > >> > >>Greg > >> > >> > >>-- > >>To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > >> > > > >___________________________________________________ > >Yahoo! Postales > >Felicita las Navidades con las postales más > >divertidas desde http://postales.yahoo.es > > > >-- > >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 ___________________________________________________ Yahoo! Postales Felicita las Navidades con las postales más divertidas desde http://postales.yahoo.es - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html