{"product_id":"corrector-de-dispersion-atmosferica-adc","title":"Atmospheric Dispersion Corrector ADC","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eADC: for sharp planetary photos even at the horizon\u003c\/b\u003e\u003cbr\u003eWho among us hasn't experienced it...? Saturn peeks out just above the horizon. But when viewed through a telescope, all you see is a blurred disk. Just a smudge in the sky. It's not worth taking planet photos like that: light refracts through the dense, thick layers of the atmosphere, and color bands appear. You have to wait for hours, until the planet rises higher. And despite everything, we are still dependent on the planet's orbital position.\u003c\/p\u003e\n\u003cp\u003eThe solution: the Omegon ADC! This small atmospheric dispersion corrector (ADC) ensures sharp and detailed planetary photos. Even when they are very close to the horizon.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAdvantages at a glance:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrects atmospheric dispersion: fewer color fringes, sharper planetary photos and more detail.\u003c\/li\u003e\n\u003cli\u003e2.5° adjustment range: two sliding opposing prisms\u003c\/li\u003e\n\u003cli\u003eUltra-flat: also suitable for naked-eye and binocular observation\u003c\/li\u003e\n\u003cli\u003eCircular scale for dispersion correction adjustment\u003c\/li\u003e\n\u003cli\u003e1.25\" adapter with T-ring and compression ring: for cameras and eyepieces\u003c\/li\u003e\n\u003cli\u003e1.25\" barrel on the telescope side with filter thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow Earth's dispersion embellishes objects\u003c\/b\u003e\u003cbr\u003eWhen we find a bright star on the horizon, it often sparkles and twinkles in the most striking colors. Beautiful for romantics, but disastrous for astronomers. The dense layers of the Earth's atmosphere cause significant refraction of starlight. This phenomenon is called atmospheric dispersion and causes light fringes to appear around objects. This makes it impossible to distinguish details. The closer an object is to the horizon, the greater the refraction. Of all colors, blue is refracted the most. The Omegon ADC transforms planets surrounded by color fringes into wonderful celestial objects. The most remarkable feature is that it has two rotating, opposing prisms. These simulate a type of chromatic aberration that acts exactly opposite to Earth's dispersion and counteracts it.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThree-piece set: ADC with two adapters and T-thread\u003c\/b\u003e\u003cbr\u003eThe dispersion corrector features a modular three-piece design:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.25\" insert barrel with T-2 thread\u003c\/li\u003e\n\u003cli\u003eCentral piece: ADC with prisms\u003c\/li\u003e\n\u003cli\u003eT-2 to 1.25\" adapter for eyepiece with additional superimposed T-2 thread and retention washer coupling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAssembly couldn't be simpler: the ADC is compatible with any telescope with a T-2 or 1.25\" connection. It can also be mounted without an adapter. An advantage: this way you will have both adapters for other purposes without having to buy them separately.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAdjustable BK-7 prisms with high light transmittance\u003c\/b\u003e\u003cbr\u003eThe two wedge-shaped BK7 prisms are broadband coated and offer high light transmittance. In visible light, the ADC achieves a transmission rate of up to 99%, so your planetary photos will remain as bright as usual. The prisms slide 2.5° with the help of two small levers (this alone represents a great advance over other models) with which you can achieve greater or lesser color deflection through continuous adjustment. The result is better dispersion correction, especially at the horizon. Another advantage is that the rotating circular scale gives you the opportunity to quickly and easily set up the best possible configuration for your next observation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhen and for what is the Omegon ADC recommended?\u003c\/b\u003e\u003cbr\u003eThe ADC is a special corrector for planetary observers and photographers. In the coming years, Saturn and Jupiter will rise little above the horizon. Without an ADC corrector, you would have to settle for a long time with detail-lacking and distorted planet captures. But with it, you can overcome this \"dispersed period\". Professionals have been using ADC correctors for years, even at large declination angles. This is because chromatic aberration errors can always be corrected, no matter how high a star shines in the sky.\u003c\/p\u003e\n\u003cp\u003eDoes it work for objects other than planets? Some amateurs use ADCs to observe binary stars. Observing Sirius B, the white dwarf of the Sirius system, is easier with an ADC. Recently, ADCs have become popular among amateur astronomers. Don't miss this opportunity to get perfect planetary photos.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOther features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFront and rear T-2 threads\u003c\/li\u003e\n\u003cli\u003e30 mm useful optical diameter\u003c\/li\u003e\n\u003cli\u003eSlight UV ray transmittance (300 nm=10%, 350 nm=48%, 400 nm=94%)\u003c\/li\u003e\n\u003cli\u003eInfrared ray transmission: 780-1000 nm, 92% to 70%\u003c\/li\u003e\n\u003cli\u003eComplete anodized black metal design\u003c\/li\u003e\n\u003cli\u003eDust cap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eScope of delivery:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAtmospheric Dispersion Corrector (ADC) with two adapters\u003c\/li\u003e\n\u003cli\u003eDust caps\u003c\/li\u003e\n\u003cli\u003eUser manual (English)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePlease note that exact alignment of the ADC with the horizon is necessary for proper functioning!\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Omegon","offers":[{"title":"Default Title","offer_id":53581605044567,"sku":"53049","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/6198\/6860\/files\/53049_1.jpg?v=1779016253","url":"https:\/\/astrotelescopios.com\/en-eu\/products\/corrector-de-dispersion-atmosferica-adc","provider":"Astro Telescopios","version":"1.0","type":"link"}