Chain questions...Parts Update

I just had a fiddle with the chain tension. It needed doing as there was 50mm of slackness...a bit beyond the service limit of 45mm
I notice now there is some definate tightness through the chain. Is this anything to be concerned about? As in immediately? Or should I just ensure it is in spec and worry about it in the future?

I notice now there is some definate tightness through the chain. Is this anything to be concerned about? As in immediately? Or should I just ensure it is in spec and worry about it in the future?