Measured in a collimated beam at 4 corner points (dotted curves) and through the center (solid curve). In the f/1.45 beam, the wavelengths will shift to the blue.
Sloan_i-5.txt: Sloan i' transmission table for a collimated beam through the center of the filter: lambda[nm] vs transmission[% * 100]
* Sloan-i' transmission plot:
-- OlgaKuhn - 12 Nov 2007