Набор лунных фильтров Celestron, 1,25"
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Описание
The moon is the most popular object for astronomical observations. This is a bright target that is easy to point with a telescope, and many interesting objects can be seen on the surface. Lunar filters allow you to reduce the excessive brightness of the Moon in a telescope and increase contrast, thereby making it easier to observe fine surface details. Astronomy enthusiasts refer to moon filters as "Moon Sunglasses" because they provide more comfortable viewing and reduce eye fatigue. This set contains all the filters you will ever need to observe the moon. Depending on the phase of the moon and the magnification of the telescope, you can always choose the filter that will reduce the brightness of the moon to the optimum value. For observations at low magnification and for telescopes with large apertures, we recommend using the darkest filter. Lighter filters should be selected for high magnification and small telescopes. This set is useful for those who want to take their next step in studying the Moon with a telescope, as well as for experienced astronomers who use a variety of telescopes and eyepieces to observe the Moon. .The kit includes: Three ND filters (ND96-0.9 13%T, ND96-0.6 25%T and ND96-0.3 50%T). They evenly darken the entire visual spectrum in the range of 400-700 nm. The ND96-0.9 filter passes 13% of the incoming light, the ND96-0.6 passes 25%, and the ND96-0.3 passes 50%. Filters reduce the brightness of the moon without changing its color. With three ND filters available at once, you can always choose the right level of moon brightness reduction depending on its phase, telescope lens diameter and magnification. Moon & Sky Glow filter - selectively reduces light transmission at certain wavelengths, which significantly improves contrast at observation of small objects on the lunar surface. At the same time, the moon acquires a slight light purple hue. For those who live in strong urban environments, the Moon & Sky Glow filter will also help to slightly improve the contrast when observing deep sky objects (because the filter blocks the wavelengths emitted by some light sources, such as street lamps with low pressure sodium lamps ). Below is a filter flow chart: Plastic Case - The kit comes in a durable plastic case with a foam cushion for storing and transporting all four filters. Moon Map - Helping you get to know our space neighbor better. This handheld map of the Moon features 17 points of interest to observe, including the Sea of Tranquility, Tycho, Plato, Copernicus and more. All filters are housed in a durable anodized aluminum frame with filter names engraved on the side of the frame. The filters are compatible with 1.25" eyepieces from Celestron and other manufacturers. Each filter has two threads - this allows you to stack the filters together for a combination filter.
Свойства товара
- Тип аксессуара: Светофильтр
- Тип: Аксессуар для телескопа
- Гарантийный срок : 1 год
- Бренд: Celestron
- Страна-изготовитель: США