New answers tagged softbox
It is impossible to give you an exact answer because there are too many variables involved: 1) power of your flash 2) size and shape of your umbrella 3) type of cover being used 4) the working distance from the subject 5) etc. Using the cover would mean less light would reach the subject. A rough guess would be about 1 stop of light, (f/5.6 instead of ...
Top 50 recent answers are included