f/72 2.5 sec background for rear end blended in but most of the image is at f/36, a bit sharper with less diffraction. Converted in RSE from raw with adjustments and sharpening and reduced 62% because it was a bit at coarse original size.
Model - NIKON D200
ExposureTime - 1/1.5 seconds
FNumber - 36.00
ISO Setting - 100
Color Mode - COLOR
White Balance - FLASH (oops!)
ExposureBiasValue - 3.00
Shot on the 105 VR macro with VR off, mirror lockup, stable on a table in bright window light with 2x teleconverter and +2 diopter Canon closeup lens at closest focus, about 5.5mm vertical on the frame (15.7 mm on sensor makes it about 3:1 magnification).