FOCUS 10-30×50 Hd Variable Telescope
VIVI FOCUS Porro telescope series incorporates the concept of ergonomic balance and is equipped with luxurious optical performance. The large focus wheel between the two axes supports you to quickly focus the field of view, and the operation is full of sense. 10x-30x continuous zoom, after the picture is focused, it can be adjusted 10-30 times at will; 50mm objective lens diameter, high sensitivity, large field of view. Bring you a wonderful visual experience. It is an ideal partner for outdoor travel, nature observation, and engineering inspection.
Products Description
VIVI FOCUS Porro telescope series incorporates the concept of ergonomic balance and is equipped with luxurious optical performance. The large focus wheel between the two axes supports you to quickly focus the field of view, and the operation is full of sense. 10x~30x continuous zoom, after the picture is focused, it can be adjusted 10-30 times at will; 50mm objective lens diameter, high sensitivity, large field of view. Bring you a wonderful visual experience. It is an ideal partner for outdoor travel, nature observation, and engineering inspection.
Product features:
Ultra-wide field of view, more comfortable observation target
10x~30x continuous zoom, after the picture is focused, it can be adjusted 10-30 times at will;
Fully multi-layer coated BAK-4 prism, stable imaging, clear color
Large center axis focusing wheel, accurate focusing even with gloves
Ergonomic design, vertical anti-slip stripes on the lens body, balanced operation
Compact and stylish design, portable and lightweight
Application areas:
outdoor tourism, outdoor adventures, sports events, concerts, power safety inspections, forestry surveys, security police, military inspections, industrial inspections, maritime observations, archaeological research, railway line selection, land and resources surveys, etc.
Technical parameter
| Product model | FOCUS 10-30×50 |
| magnification | 10x~30x |
| Mirror body material | Aluminium alloy |
| Rubber material | Rubber (NBR+PVC) |
| Objective aperture | 50mm |
| Eyepiece aperture | 20mm |
| Exit pupil diameter | 5.2mm to 1.67mm |
| Exit pupil distance | 22 mm ~ 16.5 mm |
| Field of view (at 1000M) | 3.5 ° ~ 1.4 ° |
| Pupil distance adjustable range | 58 to 73mm |
| Focusing mode | Middle note |
| Focusing lens | Eyepiece focusing |
| Prism system | Paul prism |
| Objective composition | 2 tablets 1 group |
| Lens type | Spherical Lens(spherical lens) |
| Optical material | All optical glass |
| Coating film | Wide-band green film for eyepiece and objective lens |
| dimension | 19.5 x20.5 x6.5 cm |
| weight | 900g |
