Peca Filter Kit contains nine forensic filters and three step rings and includes the most common yet hard to find set of filters that most forensic specialists use during investigations. The filters are high quality glass and are sized for 77mm filter threaded lenses. Most common investigative macro lenses have thread mounts between 55mm and 67mm. This special kit contains step rings that can be used to accommodate lens filter thread mounts of 55mm, 58mm (Fujifilm IS-1), 62mm, and 67mm (Zeiss 50mm Macro).
Other forensic filters are often required but are vastly more common and available on the market such as the Yellow 2 (8), Red 25, Orange 16, Orange 21, and IR hot mirror. These filters are often used as barrier filters during UV fluorescing techniques. IR light starts to pass around 655nm just inside the high end of the red light area of the spectrum. UV light exists below 400nm, which means visible is between 400 and 700nm. Filters are often stacked together to isolate specific wave lengths or to view fluoresced light from a target and often in combination with Alternative Light Sources (ALS).
The Forensic Filter Kit contains the following nine (9) specialized filters:
#916 (IR & UV blocking filter for visible light)