Roof Prism Binoculars

BLACKFOOT and INPRO

ABOUT BLACKFOOT and INPRO  Blackfoot AND Inpro binoculars are designed for people who expect extraordinary performance at a very competitive price. The quality of of your binoculars can have a lot to do with the success of your days outdoors. The Blackfoot range is comprehensive enough to satisfy the most demanding of users.
Below you will find a chart explaining the different constructions of the binoculars, the prisms and coatings.
ROOF PRISM BINOCULARS this system comes from the German word  'Dachkant - Prismen' meaning Roof. This optic design enables the eyepiece and objective lens to line straight to allow lighter and more compact design.
This range of roof prism binoculars are supremely compact and lightweight and easily meet the criteria demanded of them. They are the perfect accompaniment to walking, climbing and the observing of wildlife.
 
 
INPRO 8x21DCF

INPRO10x25DCF

INPRO10x25 FH

BF12x25DCFRL
BF 8 x 32 WPRL
magnification

8

10

10

12

8

objective lens (mm)

21

25

25

25

32

Focus system

centre

centre

centre

centre

individual eye

coating 

fully coated

 fully coated

ruby coated

ruby coated

ruby coated

angle of view

7°

5.9°

5.8°

4.8°

7.3°

size(mm)

101 x 30 mm

105 x 33 mm

76 x 120mm

130 x 115 mm

125 x 138 mm

weight

189g

212g

250g

277g

500g

special features

rubber armoured

rubber armoured

metallic

rubber armoured

waterproof

price

£14.50

£17.50

£34.50

 £32.50

 £99.00

Cases and straps included with all binoculars

OPTICAL COATINGS .These improve light transmission to the eye by reducing reflection internally & externally for a bright , crisp image.
FULLY COATED......All air to glass surfaces are coated. Fully coated lenses increase overall clarity and definition.
RUBY COATED......6 layers or more of multi coating consisting of varying colours & composition on the objective lenses. Ruby lenses filter out red light, making them especially good for viewing objects over water, snow or other bright conditions
MULTI COATED.............One or more surfaces of one or more lenses have been coated with multiple films, minimising light loss and improving overall clarity & definition.
A Binocular will usually be marked so that you know what to expect from it. Typical specifications are 8 x 30, 8 x 40 or 10 x 50. The first figure indicates the degree of magnification and the second, the diameter of the objective lenses, in millimetres. For most purposes, magnifications of between 6.5 x and 10 x will be most satisfactory. As magnification increases, the size of what you look at will appear larger, but any slight hand movements will also be exaggerated so that you may not be able to keep the binocular steady enough also, focusing will need to be more precise and the field of view may become narrower. The diameter of the objective lenses will control how much light the binocular can collect. In bright conditions the lens size will not be too important, but larger lenses will be able to maintain the brightness of the image even in poor lighting. Usually the greater the number of times that the magnification can be divided into the objective lens diameter, the brighter the image will be.