Pentax Binoculars, UCF X II, Specifications 

8x25 UCF X II

10x25 UCF X II

12x25 UCF X II

16x25 UCF X II

Prism

Porro

Porro

Porro

Porro

Focus

Centre

Centre

Centre

Centre

Magnification

8

10

12

16

Obj. Lens

25

25

25

25

Exit Pupil

3.1

2.5

2.1

1.6

Brightness

9.6

6.3

4.4

2.6

Eye Relief

15.0

15.0

15.0

15.0

Focus  Range

1.9mtr

1.9mtr

1.9mtr

1.9mtr

Field of view @ 1000mtrs

108

87

73

54

Height (mm)

115

115

120

120

Width (mm)

110

110

110

110

Weight

300g

300g

305g

310g