What are the different types of binoculars?
In terms of stellar, binoculars require a different type of eyepiece to see specific stars at different distances, depending on magnification and focal length. There are seven different telescope eyepieces. Models are Huygenian, Kellner, Ortoscopic, Plossl, Erfle and Ultrawide Eyepieces. Due to technological advances, these eyepieces are largely outdated. One version of this type of eyepiece is still used with cheap imported telescopes. The huygenic eyepiece has a very small field of view that quickly leads to eye voltage. Kellner is one of the least expensive eyepieces with higher power. When used on low to medium settings, it can achieve a clear and clear image. This type of eyepiece often occurs on small and medium telescopes.
ortoscopic eye eyepiece are recommended for observing planetary and lunar. This style eyepiece was the first of its kind and provided effective contrast, color and sharpness with a wide field of view. Due to the creation of eyepulators with still sentencesThis is losing this vigorous field of popularity among serious astronomers.
plossl is a general purpose, eyepiece 4 elements. It can be used to observe planetary and lunar as well as stars. Plossl has a 50 -degree field of view that projects sharp images with good eye relief. This type of binoculars can be used by people who wear glasses if the focal length is 0.67 inches (17 mm) or larger.
Erfle telescope is used for wide, deep views of space at 60 to 70 degrees. It has a lens of five or six elements, which is a great viewing of distant stars or planets with great clarity. This type of lens provides an impressive view of the sky at low energy. After switching to high power, the same view begins to look on the edges.
Ultrawides uses six to eight lens elements to provide 85 degrees of field of view. This means that the user will actually have to move aboutko to see the whole view that the telescope projects. Although it is used at high strength, this picture image will always be fresh. Due to the quality of the image and the field of vision, this eyepiece can be very expensive.