Hawke Optics 8x32 Frontier HD X Binoculars (Gray) - Manual (Page 4)

3 English / USA
SPECIFICATION & TERMINOLOGY
01 | Magnification
The binocular magnification specification is the first
number in the binocular description. e.g. a 10x42
binocular has a magnification power of 10x. That is to
say, the viewed image will be 10x larger than with the
naked eye. While a higher magnification will make
the image larger and easier to view it will also reduce
the field of view and make any movement of the
binoculars more exaggerated. Typically an 8 or 10x
magnification power is the preferred choice, but 12x
magnification is also available in some models.
02 | Objective Lens
The objective lenses are at the front end of the
binocular. The width of the objective lens relates to
the second number in the binoculars description. e.g.
a 10x42 binocular has a pair of objective lenses that
each measure 42mm in diameter. Larger objective
lenses give better light transmission and allow for a
brighter picture. A larger objective lens will allow the
binoculars to be used in lower light conditions.
03 | Field of View (FOV)
The width of the binoculars view. A larger FOV allows
for a wider image to be seen. This can be measured in
terms of angle (degrees), or by a set distance. e.g. the
FOV of an 8x42 binocular may be 142m wide when
looking at an image 1000m away. This is equivalent to
426ft wide when looking at an image 1000yds away.