René Damkot wrote in post #5491845
IMO that CFn is quite useless.
If you want a fixed shutterspeed, manual is more flexible (you can set any shutterspeed then).
If the CFn is set, the shutterspeed is 1/300s for every exposure taken on Av, where the flash was charged AFAIK.
This will probably result in a lot 'amateurish, deer in the headlights / bat in a cave' type flashed images.
Flash duration is shorter at lower power output.
You'd need some pretty fast motion to show blur in a flash image.
If you use a slower shutterspeed to let more ambient in, the ambient lighting may cause blur...
2nd curtain is useful for light trials (since they appear to go the right way then), but can screw up your timing, and make for a lot of images (depending on shutterspeed) with the subjects eyes closed or turned away, since the subject blinks because of the ETTL preflash, or think the preflash was the actual picture being taken.
Search POTN for "club photography" or something like that, quite a few threads.
IMO that CFn is quite useless.
If you want a fixed shutterspeed, manual is more flexible (you can set any shutterspeed then).
If the CFn is set, the shutterspeed is 1/300s for every exposure taken on Av, where the flash was charged AFAIK.
This will probably result in a lot 'amateurish, deer in the headlights / bat in a cave' type flashed images.
Flash duration is shorter at lower power output.
You'd need some pretty fast motion to show blur in a flash image.
If you use a slower shutterspeed to let more ambient in, the ambient lighting may cause blur...
2nd curtain is useful for light trials (since they appear to go the right way then), but can screw up your timing, and make for a lot of images (depending on shutterspeed) with the subjects eyes closed or turned away, since the subject blinks because of the ETTL preflash, or think the preflash was the actual picture being taken.
Search POTN for "club photography" or something like that, quite a few threads.
Thanks Rene for your advice. So ETTL works fine even if you set your camera in manual mode? But do you need to compensate flash strength after you set camera in manual?
One more question. I do not want insist my question, but under what circumstances do you set your flash in manual mode?
Henry
