Length :250µm to 1000µm, very difficult to take a good photo even with the 16X. Too long or not of the same focal plan and always moving. 40 photos to have 3 correct !
lamphouse 100w
Coolpix 995, 1/250e à 1/1000e
NPL fluotar 16/0,45 et Nikon fluor 40/0,85
DIC


A+
JM