>>3258754Here is the shaft of the stick pin I had the wasp head stuck on. My calipers tell me that the width of the stick pin is 0.025"/0.635mm. I'd estimate that the width of the image is close to 0.8mm.
The working distance for this lens and tube is nearly maxed out. I lost a fair amount of contrast because the lights are a bit too close to the lens. I'll make another snoot next time to prevent that.