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Marine Pro Series II
User Instructions and
30 Year Guarantee
Models
7x50 BIF.GA
7x50 BIF.GA/C
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Main Features
Model Illustrated
7x50 BIF.GA/C
C
D
B
A
E
F
A Fitting point for removable objective lens
covers (supplied)
B Integral tripod adapter socket - unscrew to fit
31005 large L mount (optional extra - visit
www.opticron.co.uk for more information)
C Integrated compass and distance scale for use
in the northern hemisphere (Model 7x50
BIF.GA/C only). Compasses for other world
regions can be fitted to order
D Natural rubber armouring with contoured
ribs to maximise comfort and handling with
or without gloves
E Long eyerelief 26mm diameter eyepieces for
viewing comfort
F Fold down rubber eyecups
Models supplied in multi-purpose soft case with
neoprene lanyard, rainguard and integral
objective lens covers.
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Distance Scale (7x50 BIF.GA/C)
The scale allows you to measure either the distance of
an object if the height is known, or the height of an
object if the distance is known.
The unit ‘mil’ is used on the scale. One scale
division is 5 mils and equivalent to an object of height
5m being viewed at a distance of 1000m.
To calculate either the distance or height of an object:
Distance [m] = Height[m] x1000 / No. of mils
Height [m] = Distance[m] x no. of mils / 1000
5 mils
Compass (7x50 BIF.GA/C)
Model 7x50 BIF.GA/C is fitted with a ø30mm graduated
compass in degrees suitable for use in the northern
hemisphere. N =360º, S =180º, E=90º and W=270º.
To use, simply hold the binoculars in the viewing
position [horizontal] and focus on an object.
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