What are monoculars: In principle monoculars are field glasses with only one optical path. SPECWELL monoculars are optimum optical instruments in a compact housing. Whether as reading aids for private use or in industrial applications for installation in equipment. The various magnification factors and working distances in the close-up as well as far field ensure a wide range of applications. Please note that the depth of field is limited in the close-up range, so that careful focussing is required.

The image is not reversed. Both lens systems (ocular and objective lenses) are achromatic and have an anti-reflex coating as a standard feature. The compact design is a significant advantage for recreational use, because monoculars are considerably smaller than binocular field glasses.

Three models are available (8 x 20, 8 x 30 and 10 x 30) for demanding outdoor use - all with sturdy rubber protective coating. In addition to the versions listed here, other models with auxiliary close-up lens are also available.

Monocular M-0208 (2 x 8)

Magnification 2x (monocular)
Distance 100 mm = 7x
Focusable Yes
Working distance (min.) 100 mm (monocular)
Field of view monocular Distance 100 mm = 12 mm
Distance 1000 metres = 192 metres
Dimensions 50 x 23 mm (monocular single)
Weight 90 grams (monocular)
115 grams (binocular)
Leather case included
Lateral view
Objective aperture 8 mm
Angle of view 11
Relative brightness 16
Pupil diameter 4 mm

Monocular M-2758 (2.75 x 8)

Magnification 2.75x (monocular)
Distance 150 mm = 6x
Focusable Yes
Working distance (min.) 150 mm (monocular)
Field of view monocular distance 150 mm = 22 mm
Distance 1000 metres = 219 metres
Dimensions 45 x 23 mm (monocular single)
Weight 90 grams (monocular)
115 grams (binocular)
Leather case included
View sideways
Objective aperture 8 mm
Angle of view 12.5
Relative brightness 8.4
Pupil diameter 2.9 mm

Monocular M-0309 (3 x 9)

Magnification 3x (monocular)
Distance 220 mm = 4.5x
Focusable Yes
Working distance (min.) 220 mm (monocular)
Field of view monocular distance 220 mm = 36 mm
Distance 1000 metres = 219 metres
Dimensions 46 x 23 mm (monocular single)
Weight 90 grams (monocular)
115 grams (binocular)
Leather case included
View sideways
Objective aperture 9 mm
Angle of view 12.5
Relative brightness 9
Pupil diameter 3 mm

Monocular M-3811 (3.8 x 11)

Magnification 3.8x (monocular)
Distance 200 mm = 6.6x
Focusable Yes
Working distance (min.) 200 mm (monocular)
Field of view monocular Distance 200 mm = 35 mm
Distance 1000 metres = 280 metres
Dimensions 56 x 31 mm (monocular single)
Weight 110 grams (monocular)
170 grams (binocular)
Leather case included
View sideways
Objective aperture 11 mm
Angle of view 16
Relative brightness 8.4
Pupil diameter 2.9 mm

Monocular M-0410 (4 x 10)

Magnification 4x (monocular)
Distance 220 mm = 5.5x
Focusable Yes
Working distance (min.) 220 mm (monocular)
Field of view monocular distance 220 mm = 29 mm
Distance 1000 metres = 175 metres
Dimensions 53 x 23 mm (monocular single)
Weight 90 grams (monocular)
115 grams (binocular)
Leather case included
Lateral view
Objective aperture 10 mm
Angle of view 10
Relative brightness 6.25
Pupil diameter 2.5 mm

Monocular M-0412 (4 x 12)

Magnification 4x (monocular)
Distance 220 mm = 5.5x
Focusable Yes
Working distance (min.) 220 mm (monocular)
Field of view monocular distance 220 mm = 35 mm
Distance 1000 metres = 219 metres
Dimensions 51 x 30 mm (monocular single)
Weight 110 grams (monocular)
170 grams (binocular)
Leather case included
View sideways
Objective aperture 12 mm
Angle of view 12.5
Relative brightness 9
Pupil diameter 3 mm

Monocular M-0616-E (6 x 16)

Magnification 6x (monocular)
Distance 250 mm = 12x
Focusable Yes
Working distance (min.) 250 mm (monocular)
Field of view monocular Distance 250 mm = 27 mm
Distance 1000 metres = 175 metres
Dimensions 74 x 32 mm (monocular single)
Weight 125 grams (monocular)
195 grams (binocular)
Leather case included
Lateral view
Objective aperture 16 mm
Angle of view 10
Relative brightness 7
Pupil diameter 2.7 mm

Monocular M-0820 (8 x 20)

Magnification 8x (monocular)
Distance 300 mm = 17.5x
Focusable Yes
Scale No
Working distance (min.) 300 mm (monocular)
Field of view monocular Distance 300 mm = 25 mm
Distance 1000 metres = 122 metres
Dimensions 91 x 40 mm (monocular single)
Weight 90 grams (monocular)
Leather case included
View sideways
Objective aperture 20 mm
Angle of view 7
Relative brightness 6.2
Pupil diameter 2.5 mm

Monocular M-0830-R (8 x 30)

Magnification 8x (monocular)
Distance 600 mm = 13.5x
Focusable Yes
Scale No
Working distance (min.) 600 mm (monocular)
Field of view monocular Distance 600 mm = 72 mm
Distance 1000 metres = 149 metres
Dimensions 130 x 50 mm (monocular single)
Weight 190 grams (monocular)
Leather case included
Lateral view
Objective aperture 30 mm
Angle of view 8.5
Relative brightness 14
Pupil diameter 3.75 mm

Monocular M-1030-R (10 x 30)

Magnification 10x (monocular)
Distance 700 mm = 15x
Focusable Yes
Scale No
Working distance (min.) 700 mm (monocular)
Field of view monocular distance 1000 metres = 105 metres
Dimensions 150 x 55 mm (monocular single)
Weight 200 grams (monocular)
Leather case included
Lateral view
Objective aperture 30 mm
Angle of view 6
Relative brightness 9
Pupil diameter 3 mm

Safety precautions for monoculars
0.177 MB, 18.06.2015, PDF