4cm DIY Flash Grid Test

My first quick test of my 4cm home-made grid for my Nikon SB26 Speedlight. Very pleased! ~2' dia @ 1.5m. Haven't had a chance to fully test it, or the 2cm grid I made at the same time, but I will and try to record a few variations of distance v diameter for them and stick the info onto each one for quick and easy reference.