{"id":12821,"date":"2025-03-10T21:19:37","date_gmt":"2025-03-10T20:19:37","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=12821"},"modified":"2026-07-19T21:14:52","modified_gmt":"2026-07-19T19:14:52","slug":"omegon-eyepiece-cronus-wa-25-mm-125","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-oculair-cronus-wa-25-mm-125\/","title":{"rendered":"Omegon Cronus WA 2.5mm Eyepiece (1.25 inch)"},"content":{"rendered":"

Omegon Cronus WA 2,5 mm Oculair (1,25 inch): groothoekoculair met 60 graden beeldveld<\/strong><\/h2>\n\n\n\n

Het Omegon Cronus WA 2,5 mm is een groothoekoculair met een beeldveld van 60 graden en een oogafstand van 16 mm. Met dit korte brandpunt haal je de hoogste vergrotingen uit je telescoop, voor nachten met een rustige atmosfeer.<\/p>\n\n\n\n

The Cronus series is the affordable entry into wide-field eyepieces: you see about 20 percent more field of view than with a standard Plossl, without a tunnel effect. Objects stay in view longer, which is especially nice with telescopes without a tracking motor.<\/p>\n\n\n\n

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Comfortable viewing, even with glasses<\/h4>\n\n\n\n

The 16mm eye relief is generous for this price range. Your eye doesn't need to be exactly on the optical axis to see a full field of view, virtually eliminating black vignetting. Those who wear glasses can observe with them on.<\/p>\n\n\n\n

The rotating eyepiece can be adjusted to your preferred distance. Useful if multiple people are looking through the same telescope.<\/p>\n\n\n\n

Six-element optics with multi-coating<\/h4>\n\n\n\n

The six-element lens design features multi-layer coating on all air-to-glass surfaces. This increases light transmission and keeps reflections low, for a high-contrast image with a dark background.<\/p>\n\n\n\n

The 1.25-inch barrel has standard filter threads, so you can screw a moon filter or color filter directly under the eyepiece.<\/p>\n\n\n\n

Wat zie je met 2,5 mm?<\/h4>\n\n\n\n

Op een telescoop met 900 mm brandpuntsafstand levert 2,5 mm een vergroting van 360x. Dat is alleen zinvol bij een opening vanaf zo'n 180 mm en een stabiele atmosfeer.<\/p>\n\n\n\n

Denk aan de schaduwrand langs maankraters, de Cassini-scheiding in de ringen van Saturnus en nauwe dubbelsterren. Controleer vooraf of je telescoop deze vergroting aankan: realistisch is maximaal 2x de opening in millimeters.<\/p>\n\n\n\n

Featured accessories<\/h3>\n\n\n\n

All Cronus eyepieces share the same field of view and eye relief, making it comfortable to switch focal lengths. Combine with an Omegon Moon Filter (1.25 inch) to dim the bright lunar image, or with an Omegon Barlow lens for extra magnification at longer focal lengths.<\/p>\n\n\n\n

For whom yes and for whom no<\/h3>\n\n\n\n