I had a thought and tested it out. Didn't work out too well.
My object (a person) standing in front of me, perhaps 1.5 to 2 meters away and her background is a beautiful landscape with nothing to bounce my Speedlite
Time : Night.
Objective: to capture both object and the landscape clearly (no bokeh)
So how do I keep everything in clear , since my aperture would have been at least 5.6 or 7.1 or 8.0 depending on my sweet spot lens, and that made my shutter speed will be slower, thus impacting a blur on my object ( I don't think any person will be able to stand still for more than 1 second ).
Increasing ISO will be out of question and I do not want to increase any noise
I used SP-430EXII
Is this achievable?