AFTE Store - Creating a Temporary Liquid lens for Amplification of ToolMarks

In some cases the examination of firing pin mark can be difficult because of various conditions including depth of field, reflectance and contrast. This problem brings us to look for a additional new methods. Placing liquids on the base of cartridge cases has the possibility of enhancing the visualization of individual characteristics of the toolmarks found in the firing pin impressions. The liquid forms a hemi-spherical lens temporarily and increases the illumination and resolution for comparisons.

Full Journal: AFTE Journal Vol 37 No 4 (2005)