binoculars

[beanyboy1982]

hi all was looking around the house and found these binoculars took them outside to look at the stars what a difference they make, they have (10x50 field 6 105m/1000m ) on them what does this mean ?

[beanyboy1982]

also would this be any good ?

Tasco 302911 D = 114mm F = 500mm | eBay

[cantab]

10x50 means 10 times magnification and 50mm objective lenses. 10x50 are the most common for astronomy.

105m/1000m is the "field of view" - how far across the image you see is. In this case it's 105m wide at a distance of a kilometre. In astronomy angular measurements are preferred, and yours give a view 6 degrees across, which is pretty good.

(I think the 6 is also the field of view, expressed in degrees.)

[beanyboy1982]

yeah it had a small o after the 6