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-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

Safety precautions for monoculars
0.177 MB, 18.06.2015, PDF