Opteka 6.5mm f/3.5 on Nikon d3200?

Can I control this lens' aperture from the thumb dial on my Nikon d3200? Or is it a full manual lens? I know the focus is manual, which I don't mind, but if I won't be able to change the aperture from my cameras thumb dial, I would like to know.

An educated guess is that you can adjust the lens aperture using the thumb wheel, but since I do not have this lens, I can't tell you for sure.

All you can do is contact the importer of this lens and ask.

Their web site doesn't say if it's full maunal. Do like the pros do, use it as a manual lens!
The lens is glass, and the frame aluminum, so it seems well made.

No, you have to use the aperture ring.

You'll have to use Manual exposure as well and memorise the, 'Sunny 16 rule,' because your light meter won't work either.