K 6.3 Eyepiece 1 1/4''

€24,90
Tax included
SKU: 566509
Barcode: 4000461014482
By Dörr

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Specifications
An eyepiece is part of the optical system in astronomical telescopes. The eyepiece is attached to the telescope and enables the view. It enlarges the image produced by the telescope, similar to a magnifying glass.

FOCAL LENGTH AND MAGNIFICATION

The focal length of the eyepiece used, along with the focal length of the telescope, determines the magnification. This can be calculated easily with the following formula:

Magnification = Focal Length Telescope : Focal Length Eyepiece

Example: Telescope 1000mm : Eyepiece 6,3mm = 159x Magnification
 
In general: the shorter the focal length of the eyepiece, the higher the magnification. Furthermore, the longer the focal length of the telescope, the higher the magnification. Eyepieces with longer focal lengths provide a better overview of the night sky.

KELLNER CONSTRUCTION

The construction of the eyepiece is decisive for the optical quality of the eyepiece. The Kellner construction delivers good optical results. It is a two-lens construction. Colour aberrations are reduced. Kellner eyepieces provide good image sharpness and good contrast for great viewing pleasure.

FULLY COATED

The full coating (FC) of the lenses enables improved light transmission for the brightest possible image. The coating also reduces reflections.

1.25" CONNECTION

All DÖRR eyepieces feature a standardized 1.25" diameter. That corresponds to 31.7mm. The rear side is fitted with a thread to attach a moon filter (optional accessory).

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