M5 gantry cameras

[maccboy]

Hi
Been lurking for a while and a similar post has prompted me to post. I've searched for this but not found anything appropriate.
Drove along M6 and M5 yesterday (not all the way!) and I've always wondered if the variable speed gantry cameras on the M5 are on when there is no variable speed set. Do they still take your picture - if you're going faster than 70?
Cheers!
maccboy

[maccboy]

Hmm. You are right. It's when you have avoided going onto the M6 toll. So the cameras are on the M6, not the M5. Around junctions 10, 9 and 8?