What are you feeding? That does not look like Calcium. That looks like pH & or Salt toxicity causing minor lockout. If you're using salt based nutes that could be the issue. I would highly recommend flushing though, regardless of what the issue is. If you're in soil, could be hotspots. All in all, doesnt look like deficiency to me, looks more like toxicity or pH area.
I’ve been away and left the tent door shut for two days with two different leds on ones a Mars hydrots600 the other a phat slim one,I had them about 18 inches away,I think that was the problem Thanks for your reply