I think it may be even more complex than that... In order to do TTL, surely the controller also needs to tell the flash when to quench.
In order to do P-TTL (does it do this in wireless? I cant remember offhand) it also needs to fire a preflash and meter the results. Could it be as complex as: RTF tells 360 to do a pre-flash 360 (and RTF if being used) does the preflash Camera meters the results RTF tells 360 to flash at a certain power Shutter fires 360 (and RTF if being used) flashes RTF tells 360 to quench Shutter closes wow this must have been real fun to engineer! > -----Original Message----- > From: Bill Owens [mailto:[EMAIL PROTECTED]] > Sent: 26 June 2002 01:28 > To: [EMAIL PROTECTED] > Subject: Re: Off-camera use of 360 FGZ (was Drawback of lack of zoom > reflector) > > > > But the RTF still needs to shoot at the exact time of exposure, no? > > > > R > > That depends. If you're using just to control the AF360, it > fires prior to > the exposure. If you're using it as a secondary flash, then > it fires just > prior to exposure to signal information to the AF360, then it > and the 360 > fire for the exposure. Pretty complicated piece of engineering, IMHO. > Also, there's no discernable delay between the control > flahs(es) and the > exposure flash, just one long flash, and the control flash is > visible in the > viewfinder just prior to the mirror going up. > > Bill > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
