Given a minimum focus distance of 0.2m for this lens:
Lens Magnification and Depth of Field Calculator
an 8mm extension tube would give a new minimum focus distance of 0.03m (30mm). This is the distance from the sensor to the object.:
9.2mm = Flange to sensor register for Q mount
8.5mm = focal length of lens
8.0mm = extension tube
total 25.7mm leaving you with 4.3mm (0.17 in) distance from lens to object. Not much working distance for lighting. The filter ring will probably be hitting the object before you get close enough to focus.
I have a glassless Minolta MD to K mount adapter that is 8mm. No infinity focus so it acts like a short extension tube. It probably depends on the design of the latching mechanism for the lens mounts.
Note the above linked calculator is based on the assumption of a thin lens so that the optical center is in the front element. The optical center in a multi-element lens may be elsewhere so the distance from the front element to object could be much less.