SomeKindaLove said:^ could easily be legit LSD. Visuals are not a prerequisite for an acid trip, in fact, they only occur strongly at higher doses.
I know this is probably a virtually unanswerable question, but how many micrograms do you reckon it takes for relatively strong (yet not completely overwhelming) open-eyed visuals to occur. I'm something of a nerd about this; I'm just curious if there's any way to figure out or at least get a good estimate of how many micrograms I took. It was a really good, moderate trip, seemed like... one geltab I know was of great quality. I would guess 100-200 micrograms but then again I don't really know. Not a low-dose but definitely not a total mindfuck.