Feature
●This is a 1.25 inch / 31.7 mm telescope eyepiece and barlow lens set
●You can freely observe objects with different distances and sizes. Also comes with a 2x Barlow lens, making it very convenient when observing astronomics
●Premium optical glass is used in lens material for clear vision and superior contrast
●The image is flat and the chromatic aberration is properly corrected, and it is recommended for those who are seeking high demand for observation experiences and effects, or for astronomy photographers
●Lenses are multi-coated for a better sharp image
Description
The importance of an eyepiece: Eyepiece is one of the most important elements of the telescope.One eyepiece can change the way you see the telescope. Observation, observation, or use different purposes, you can pull out the telescope without any extra capacity. You can also upgrade your telescope and continue to use.
The relationship between the focal length and magnification of the eyepiece = the focal length of the objective lens (mirror), and the focal length of the eyepiece. Also, the objective lens of the telescope cannot change the focal length, so all adjustments of magnification are done by replacing the eyepiece.As you can see from the above formula, the longer the focal length of the eyepiece is relatively lower, the lower the focal length of the eyepiece, the higher the magnification is relatively strong.The lower the magnification the wider and brighter the viewing area and the higher the magnification, the narrower and darker the viewing area.In real observations, you observe the stars with optimal magnification by replacing eyepieces with different focal length depending on what you are looking for. In general, the focal length of the eyepiece is about 50mm to 3mm.Some people use a 3.9 inches (100 mm) eyepiece for public astronomy tables.
Features:
Features: 31.7 mm Diameter: Current mainstream sleeve diameter: Focal length: Set of 5, you can choose the suitable eyepiece according to your observation needs; Double magnification: 2x Barlow lens is also included, very convenient for astronomical observationMaterial: Premium optical glass used for lens material for clear vision and superior contrast Multi-coating: lens provides a better sharp image with low chromatic aberration: flat image Corrected and clear images Tie
About Barlow Lens: Smaller F telescopes tend to reach the eyepiece and increase spherical aberration and destroy the eyepiece itself performance.When used with a barlow lens, this shooting angle is reduced and gives you a sharp image without compromising the performance of the eyepiece.In addition, the Barlow lens corrects the curvature of the telescope focal surface, and dramatically improves image deterioration around the field of view, especially if it is a problem with small F telescopes.It is also a big advantage that you can use long focus eyepieces with a large aperture of the lens to provide a stable and stable image and adequate eye relief during lunar and planetary observations.As a way to get a good image, we recommend using an aggressive Barlow lens regardless of the type of telescope, low magnification or high magnification.
Package includes: 1X 6.3mm Telescope Eyepiece 1X 10mm Telescope Eyepiece 1X 12.5mm Telescope Eyepiece 1X 20mm Telescope Eyepiece 1X 32mm Telescope Eyepiece 1X 2x Barlow Lens Please note: Barlow lens can easily pull up the magnification but there are some imperfections on the other side.It will be corrected for aberration and will definitely worsen the image.