Specwell M-820 Monocular is a hand held telescope with magnification of 8x and 20 mm aperture, which can be used to observe objects at a minimum working distance of 300 mm up to infinity.
Specwell monoculars make excellent vision aids due to their high light sensitivity, true image and magnification factor. Whether as a portable telescope or reading aid for private use, or in industrial applications for installation inside equipment, the magnification factor and working distance in the close-up, as well as long distance, 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.
- Monocular: 8 x 20
- Magnification: 8x
- Distance 300 mm: 17.5x
- Working distance (min.): 300 mm
- Visual field, distance 300 mm: 23 mm
- Visual field, distance 1.000 m: 114 m
- Objective aperture: 20 mm
- Visual angle: 6.5°
- Relative brightness: 6.5
- Pupil diameter: 2.5 mm
- Dimensions: 91 x 32 mm
- Weight: 90g
Leather case included.
