PDF] Transmittance measurements for filters of optical density between one and ten. | Semantic Scholar
SOLVED: Consider the ozone filter at a wavelength of 255 nm. Calculate the optical density (OD) for a path length of 0.3 [cm]. Calculate the reduction of intensity over the path. Verify
ND Filters – In Depth Guide For Beginners — The School of Photography - Courses, Tutorials & Books