Light Output test for Neewer Vision 4, Dynalite Uni 400 and the Canon EX RT 600 speedlight
- At November 24, 2018
- By Johnny Stevens
- In fstop
0
Light Output test for Neewer Vision 4, Dynalite Uni 400 and the Canon EX RT 600 speedlight to see which lights give the the lowest output and which give me the highest output. The Dyna and Vision 4 are both rated at 400 w/s. The Canon 600 was the lowest output. The Dyna barely beat out the Vision 4 on the high side but the Vision 4 had the greatest output range – right at 6 stops.
Camera and Light meter are set at 100 ISO and 125 second shutter speed.
Light is metered exactly 10 feet away from the light source.
Dyna Uni Low (1/8 power) = f5.6 Hi (full power) = f16.3
Neewer Vision 4 Low (1/64 power) = f1.4 Hi (full power) = f16.0
Canon 600 ex rt Low (1/128 power) = f1.0 Hi (full power) = f8.0
Light output test for Dyna Ultra 400, Neewer Vision 4 and Canon 600 ex rt speedlight
