Viking Swallow The all new and improved Viking Swallow binocular range offering excellent optical quality at a great price. The re modelled eyecups and an all new slimmed down chassis enhance the handling and user experience. The Swallow range still offers the excellent optical performance with the great light transmission and contrast that you expect from a quality Viking Product. The Swallow is still fully waterproof and nitrogen filled meaning it won’t let you down even if the weather does. Available in a lightweight 8x32 (475g) when portability matters and full size 8x42 , 10x42 models to make the most of all available light.