This paper describes the latest techniques used in the development and construction of two unique types of low-light level sensors. Both sensors operate in the visible and near I.R. (infrared) spectrum but address divergent design goals, architectures, and construction. The first sensor is based on custom single micro-channel plate intensification of the C.I.D. (charge injection device)6solid-state self scanning array. Design and performance goals emphasize sensitivity (10-6 F.C.), MTF, miniturization (0.0258 cu.ft.), ruggedness, integration and gating. The second sensor is based on custom dual micro-channel plate intensification of a modi-fied silicon array tube. Design and performance goals emphasize sensitivity (10-8 F.C.), intrascene dynamic range (1x108) and blooming. Both sensors are described in terms of architectures, physical structure, performance and design trade offs.