Eyecups

Researchers then moved on gradually to two eyecups. ❋ AP/The Huffington Post (2011)

The overall length with eyecups extended is 51 ⁄ 2 inches, the width with bridge open is 43 ⁄ 4 inches, and the exit pupil is 4. 125mm. ❋ Unknown (2009)

The eyecups screw up, stay up, and don't come off. ❋ Unknown (2009)

Tanner, who was previously trained in wearing the opaque latex eyecups, already knew how to imitate other dolphins' behaviors without blindfolds on. ❋ AP/The Huffington Post (2011)

The weigh 20 ounces, are 4.6 inches tall with eyecups extended, and were best summed up by a PH who took a look through them: “They make you want to take your own binoculars and throw them as far as you can.” ❋ Unknown (2008)

Being an eyeglass wearer, you want to make sure that your binoculars -- of whatever type -- have fold-down eyecups. ❋ Unknown (2006)

Porro - or roof prisms have no bearing on this, just the eyecups. ❋ Unknown (2006)

“It blocks out stray lightbeams that leak through those crappy free masks; it has an adjustable velcro strap; and the molded eyecups give your eyeballs freedom to flip around in REM sleep.” ❋ Unknown (2006)

I'd never needed instructions in the past, I just dropped the tea bag in the cup and poured hot water on top of it, but this was a more elaborate procedure involving a pot full of water with a can of Sterno under it to keep it at the boiling point, and a whole system for making the tea in small batches which we were supposed to drink from these tiny china eyecups. ❋ Block, Lawrence (2004)

Other features: Rubber-armored, pop-up eyecups, waterproof. ❋ Unknown (1999)

The most substantive criticism by testers was that the pop-up eyecups pushed down too easily. ❋ Unknown (1999)