Neutral grey filter with approx. 13% transmission
Grey/greenish filters can be used for planet observing, solar observing (only in combination with a true solar filter!) and for nature observing. The function is similar to regular sunglasses - the image brightness is reduced, meaning less strain for your eyes. The filter can be used visually and photographically.
A ND filter is also helpful for observing binary stars by reducing the glare of the brighter component.
TS Optics colour filters offer an improved contrast when viewing the moon and the planets. Each filter works out specific details by permitting only specific parts of the visual spectrum. As a resul the contrast of these details is boosted for better visibility.
Quality Features of the TS Optics Colour Filters:
- the filter housing is made of metal and as thin as possible to avoid vignetting.
- the glass used in our filters is very homogenous and parallel
- a very good image quality is promised
- filter threads on both sides allow you to combine different filters. For example, a blue filter and a yellow filter combined resemble a green filter.
Combine several colour filters to get even further colour shades:
Each of the 3 different 2" colour filters has a different effect on the image. As a result different filters are used for viewing different details of a planet. By combining two filters you can get additional colour shades. For example, a blue filter and a yellow filter combined resemble a green filter with a different shade than the normal green filter.
Specifications:
- polished and parallel surfaces
- anti reflective coating
- homogenous glass
- 2" filter thread on both sides
Scope of Delivery: Each TS Optics 2" colour filter comes with a plastic storage case for dust protection.
TS Optics is a Telescopic Service trademark.
