52 days flowering how much longer?

Thanks..............

It is hard to say with the pictures you have.

There is a lot of information regarding the harvest here:

https://www.rollitup.org/harvesting-curing/

Get a microscope 30-60X to look at the buds. They sell them at Radio shack for $13.

We cant really see your trics. But going from the look id say maby a week left id start flushing but then again id highly recommend you buy a 30 or 60x microscope