The Model 305 Fixed Focus Non-Browning Lens from Resolve Optics Ltd. (Chesham, Buckinghamshire, UK) has been designed for large image format cameras and sensors used in environments subject to radiation. Measuring 30mm in diameter, the compact f2 lens delivers high image resolution and minimum geometric distortion from 400 - 750nm. Manufactured from cerium doped glass or synthetic silica, the Model 305 lens is able to withstand radiation exposure of up to 53 kGy (108 rads) and temperatures up to 55 degrees C without discoloration. Designed to give a 40° field of view in both the vertical and horizontal planes and 25 Cycles/mm the Model 305 lens is able to provide uncompromised optical performance for images up to 18mm in diameter.
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