S Suran K New member Sep 11, 2010 #1 I have an external flash and using it as slave. I need to know when my camera aperture is set to F2.8 what do i set my flash F stop to? How do i work this out.
I have an external flash and using it as slave. I need to know when my camera aperture is set to F2.8 what do i set my flash F stop to? How do i work this out.
