Originally posted by JohnMc Add more light to the background relative to subject either through modifiers, reducing the main (flash) light, or putting more light to the BG
I've thought about how to have the main subject lit by the flash and the back lit by natural light , by means of a double exposure: first exposure with flash , second exposure without flash, but haven't found any way to do it automatically with the cameras.
Now, to achieve a balanced subject / background exposure in a single capture with flash, for instance nature subject, the background is too large to be lit with artificial light. However, if the subject is back lit, then it becomes possible to have the subject mostly illuminated by the flash , with the background illuminated by natural light.
---------- Post added 22-11-21 at 18:47 ----------
Originally posted by Paul the Sunman Do you have SR turned on?
Yes it was turned on. Can SR cause issues when using a flash?
---------- Post added 22-11-21 at 18:49 ----------
Originally posted by pschlute Meter for, and set your camera to expose the background as you want....then use a flash output that lights your subject and not the background.
Yes, thanks for the recommendation.
---------- Post added 22-11-21 at 18:51 ----------
Originally posted by stevebrot As noted above, the ambient light exposure (shutter speed + aperture) you meter to your intent. The flash augments the ambient and you control by how much.
I've played with manual flash and exposure compensation on the camera (camera exposing for the ambient light). It was more trial & error, I could achieve proper exposure after a few test shots.
---------- Post added 22-11-21 at 18:55 ----------
Originally posted by Bob 256 For a given exposure, increasing ISO will increase all areas of the subject as will opening the aperture (which will also affect depth of field). However, slowing the shutter will only increase the background since the flash duration is fixed.
Thanks for the summary. I get that. I was initially trying to make a double exposures in burst mode with the flash firing at the first exposure and no firing at the second exposure so that I would blend the two exposures to create one picture. But that didn't work because the camera exposed the same way with and without flash.