Quote:
Originally Posted by anfo
Thanks for the replies gents. Keep em coming.
Quick noobular question. What do you mean by 'roof' ?
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Binocs come in two "shapes". There's the type that most have where the eyepieces are offset in relation to the objective lenses. The distance between the eyepieces is a lot less than the distance between the lenses at the business end. The prisms used in this style of binocs are called porro prisms.
Then there are the binocs where the eyepieces and the objective lenses are arranged like a pair of the cardboard tubes from the centres of dunny rolls stuck together side by side. The prisms used in this type are called 'roof' prisms. That's what he means
