The EXPS series consists of three Porro models with the following parameters: 8x42, 10x42 and 12x50. These instruments come with a solid, rubber-covered casing, equipped with BaK-4 prisms fully multi-coated.
solid; compact and stylish casing; good transmission; good whiteness rendering; excellent correction of chromatic aberration; very low distortion; slight brightness loss on the edge of the field; good quality of prisms and coatings; long guarantee period
narrow field of view; definitely too light areas near exit pupils; a bit too narrow maximum IPD; inner tubes should have been blackened better