They are the best Barr and Stroud binoculars.

Compact binoculars feature fully multi coated optics with phase corrected prisms for exceptional viewing quality in a pocket sized format. Magnesium alloy housing with waterproof twin hinge design and twist up eyepieces for easy, correct eye relief adjustment. The compact Barr and Stroud binoculars are exceptionally portable and practical. The binoculars are filled with nitrogen gas which keeps water out and also stops the optics suffering from internal fogging in adverse weather conditions, this binocular is truly weatherproof.

Fully multi coated optics is standard features of the Barr and Stroud binoculars range as are phase coated prisms. This degree of sophistication ensures that as much light as possible is transmitted through the optics which results in super bright contrast rich images of high color fidelity for the user even in low light conditions were less expensive optics and coatings result in a dramatic loss of performance.

For the comfort of the user the binoculars are supplied with metal twist up eyecups that are rubber coated which make them equally practical for people to use with or without spectacles. The rapid focus mechanism takes the user from close focus to infinity in Barr and Stroud binoculars less than one turn of the focus control knob, which ensures that you can follow the action however fast it is happening.