Steve Ringwood takes a good look through Vixen’s SLV range of eyepieces, offered in ten focal lengths from 2.5mm to 25mm. Each is designed to offer exceptional clarity and contrast across a 45°—50° field by employing rare earth Lanthanum glass. He also notes that each eyepiece’s polygonal rubber grip acts as an ‘anti-roll’ feature, hopefully protecting them from a fall!
Microscopists enjoyed the advantages of binocular vision long before someone thought to apply this principle to telescopes. Using both eyes, the brain is able to interpolate both fields, resulting in a gain in contrast and a consequently improved perception of detail. Steve Ringwood appraises a very stylish model from Venonscope aimed at the top end of the twin eyepiece market.