LV5 won't trigger my EOS7D
Well, that's not strictly true...
To test, I set up a dart on a thread, falling through the laser beam.
If I lower the dart through the beam the trigger operates, and a wireless V5 on the camera triggers the shutter. So far so good...
If I DROP the dart (from any height, t doesn't mater) I can see the sensor LED flash to red and back to green, but the camera shutter doesn't fire.
I tried increasing freeze - right up to 90ms - and at 90ms it seems to fire.
Is this behaviour expected (due to shutter delay)? I have read in detailed reviews that the shutter lag on the 7D is classed as fast so it seems odd that I have to go so far on the freeze in order to get the shutter to fire, but I can see the V5 receiver is being triggered by the sensor at all freeze values (including NIL) as the V5 LED flashes every time.
It does mean that for high-speed shots one needs to trigger well in advance and know where the object is going, which could make it useless as a setup for wildlife (insects etc)?
Thanks for any pointers.