The lens body is short,the focal length is long,and the effective magnification is high.The high-definition blue film effectively reduces the light reflectivity,improves the pass rate,and the image is clearer and clearer.
It is not only a long focal length and high magnification,but also a real collectible,which can be retracted/easily stored/does not take up space
35mm/37in large aperture,a lot of light,bright and clear imaging.The large eyepiece can be observed and used for a long time,and it is not easy to be fatigued.
It can be expanded and contracted to meet multi-functional observation.The stretch telescope can be placed directly in your pocket,and it can achieve a longer focal length when stretched,reaching a high magnification of 25 times,which is real,and you can see farther!
Optical glass lens adjustable focus Monocular 25*40mm high magnification high-definition telescopic gift retro high magnification pocket optical telescope
وصف
Model
Prism:Prism
Caliber:30mm/1.18in
Mirror body material:metal
Magnification:25X
Coating type:blue coating on the whole
Field of view:126 meters (4960 inches)/1000 meters (39370 inches)
Size:36/1.41X36/1.41X335mm/13.18in
36/1.41X36/1.41X 135mm/5.31in after folding
Exit pupil diameter:1.2mm/0.04in
Weight:about 200g/7oz
Observation range:30/1.18~68mm/2.67in
The difference between monocular/binoculars:
Binoculars are mostly used for close observation,(traveling or watching sports events,etc.)
Monoculars are mostly used for long-distance observation,(such as watching the city on the roof of a building,observing animals in the field)
Observingis an astronomical telescope
1.The binoculars have a wider field of view,and the monoculars have a narrow field of view.
2.The principle is different:Binoculars are often composed of a convex lens and a concave lens to form a light path.Monoculars are often composed of two convex lenses to form a light path.
3.The single tube is often longer and the double tube is shorter,which is also determined by the different principles.
4.The first reason is that the binocular has two objective lenses,so the field of view is wide,and the other reason is that the magnification of the binocular is often lower than that of the monocular.