Technical Photography represents a collection of broadband spectral images realized with a modified full spectrum digital camera and different lighting sources and filters. These useful images for art diagnostics are: Visible (VIS), Raking Light (RAK), Ultraviolet Fluorescence (UVF), Ultraviolet Reflected (UVR), Infrared (IR), Infrared False Color (IRFC), Infrared Fluorescence (IRF).
We just tested Coastal Optical 60 mm lens on our Nikon D800 for technical photography (visible, ultraviolet fluorescence, ultraviolet reflected, infrared) and infrared reflectography. This is an apochromatic lens in the range 310-110 nm. Indeed, the lens didn't need any refocusing while shooting technical photos in the UV, VIS and IR region. It really resulted [...]