D70 Night Noise

Here a picture I just took out the back.
Now my question, I see lots of night shots here and there seems to be little noise in the pics.Unlike mine
, how is it done??
I was using ISO200 about 6sec at f8 85mm on the old 24-120VR. Any ideas
Does lens type make much difference?
MATT

Now my question, I see lots of night shots here and there seems to be little noise in the pics.Unlike mine

I was using ISO200 about 6sec at f8 85mm on the old 24-120VR. Any ideas
Does lens type make much difference?
MATT