What stage is this?

I am in week 9 of this grow of northern lights autos and am wondering where im at in my grow. As a first grow am trying to see when is the time to start prepping for harvest as im not too sure the difference in person of clear to opaque tricomes. These are the best I could do for pictures as it is hard to get a steady hand of my microscope and snap the pic at same time on tablet. Would these indicate clear tricomes in your opinion? Thanks for the help.

you have any pix of the entire plants? kinda hard to judge by those pictures.

I don't have of entire plant but here is one of part of the plant. Not at the plants myself right now but can get better ones tomorrow.

That's a pretty young bud...you need way more time. Forget the trichomes till your pistils are all brown.
J