Canon 7d and Inon D2000 problem

Why is this happening. When I set my 7D internal flash output to 1/128 and put the strobe to "full", I get much less power from the strobe than when I set the 7D to ETTL with the strobe set to "full".

internal flash set to 1/128

internal flash set to ETTL

If you have the 7D set to manual flash output, you need to put the magnet in the hole at the bottom right. This tells the strobe that there is no pre-flash. SHould resolve your problem.

If you have the 7D set to manual flash output, you need to put the magnet in the hole at the bottom right. This tells the strobe that there is no pre-flash. SHould resolve your problem.

Thanks Alex, the magnet corrected the problem.