Celestron Omni Ploessl 4mm (1,25 ) Ploessls opinie


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Celestron Omni Ploessl 4mm (1,25")
 
 
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Celestron Omni Ploessl 4mm (1,25\")
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Celestron Omni Ploessl is a series of high-class, symmetrical 4-piece glasses. They are characterized by high quality mechanical workmanship and good optics.

The body of each eyepiece undergoes a two-stage anodization process in order to obtain a higher durability and eliminate reflections.

The edges of the lenses are blackened, reducing internal flares and achieving higher contrast in the images obtained. Optics covered with high-quality MC layers on all optical surfaces.

Eyepiece equipped with a 1.25 "filter thread and soft rubber eyecup.

Typical Applications

The eyepiece with a focal length of 4 millimeters allows you to obtain the maximum or close to the maximum magnification. A proper eyepiece for telescopes with a light intensity not less than f / 8 - f / 9. It is not recommended for Maksutov telescopes with a power smaller than f / 10, because the magnifications will be basically too high.
For example, in a 1200 mm telescope and a mirror diameter of 203 mm (e.g. Sky-Watcher N-203/1200 Dobson) we obtain a magnification of 1200/4 = 300x, appropriate for observing the details of the Moon, Jupiter belts and the structure of the chest. Saturn's shadows. In the Newton 150/750 telescope (GSO N-150/750 OTA, Sky-Watcher N-150/750 EQ3-2 and similar) we will obtain a 750/4 = 187.5x magnification, optimal planetary magnification under decent atmospheric stability conditions.

Due to the high magnification obtained, the eyepiece requires good or even very good viewing conditions.

Recommended applications: Moon observations, details of planetary disks, tight star binary systems, compact globular clusters.

Technical parameters

• construction: Ploessla, 4-piece
• focal length: 4 mm
• offset of the exit pupil: 6 mm
• own field of view: 52 °
• anti-reflective layers: MC on all optical surfaces
• housing: anodized aluminum
• luminaire diameter: 1.25 "

Warranty

2 years






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