- Messages
- 6,320
- Name
- Steven
- Edit My Images
- Yes
I'm trying to take a photo with a "fake" black background with just the flash and separation from the back ground.
According to my shiny new flash meter my settings at the subject are F4 1/500 and at the back wall f0.5. My gut says that a ~6 stop difference should render the background black but I thought I'd garner opinions.
The reason asking and not just trying is, I've tried it with my D3100 and I still get some relatively well lit background though I can't remember what my settings are for that, I think this spill from the umbrella rather than ambient. I'm planning to use ISO 25 in my RB67 for the shot so I've got another 2 stops of sync speed on and 2 in the film stock over the DSLR and I wonder if that will do it if not I guess I'll need to look at a backdrop or a modifier of some description.
According to my shiny new flash meter my settings at the subject are F4 1/500 and at the back wall f0.5. My gut says that a ~6 stop difference should render the background black but I thought I'd garner opinions.
The reason asking and not just trying is, I've tried it with my D3100 and I still get some relatively well lit background though I can't remember what my settings are for that, I think this spill from the umbrella rather than ambient. I'm planning to use ISO 25 in my RB67 for the shot so I've got another 2 stops of sync speed on and 2 in the film stock over the DSLR and I wonder if that will do it if not I guess I'll need to look at a backdrop or a modifier of some description.