Dear forum members,
I often do portraits outside and sometimes use monologhts outside to light my subjects. (I use Profoto B1X)
Now I have been using HSS, which means I can use any shutter speed with the strobe.
However, as we know HSS reduces flash power and also taxes the flash more.
Ok that's fine, I can go around this by using an ND filter, work within cameras native synch speed and make my flash work like a champ.
So I go and buy 6-stop ND filter to use wide apertures in bright outdoor conditions and be in cameras native synch speed.
Everything seems fine in theory.
However, my camera was really struggling to focus, to the point of being un-usable. (I use 5D3).
Is anyone also struggling with their cameras focusing with 6-stop ND filter?
Maybe I should use a 3-stop ND filter instead? But that wouldn't put me in my desired shutter speed when sunny.
I have read that the higher shutter speed you use in HSS the weaker the flash gets, so maybe I use 3-stop ND filter for a happy middle ground? (having my camera able to focus, still being in HSS mode but say at 1/800 shutter instead of 1/6400, making my flash work less intense?).
I am curious if anyone is successful focusing for portraits with 6-stop ND filters!