Baader UHC S Filter

The Baader UHC S Filter performs exceptionally well at providing a high contrast and natural view of emission nebula, without any excessive dimming and loss of background star fields.

The UHC S Filter is the perfect filter for observing emission nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites.

State-of-the-art technology from coatings make it possible for the filter to achieve an exceptional transmission of over 97% across the entire passband, with complete blockage of prominent light pollution lines.

This means maximum image brightness and contrast even in smaller scopes, larger telescope users will delight in the rich star fields and detailed subtle nebular shadings that are left intact.

The Baader UHC-S manages to greatly enhance the contrast of the typical broadband or so-called "Deep Sky" filters. The sky background is darker, and contrast of emission nebulae is improved drastically.

The majority of "UHC" filters have an inclination to excessively darken the sky and star fields, leaving the nebulae looking unnatural and flat, set against an empty background.

The high transmission, sharp cutoffs, and more moderate 60nm passband of the Baader UHC-S filter retains a more natural view, yet boosts overall contrast noticeably.

Imagers will recognize the value of the broader passband and addition of an incredibly efficient H-Alpha passband (>99% @656nm), along with the extraordinary optical quality.

It's possible to thread the filter into your 1.25" eyepieces or accessories with standard filter threads. You merely screw this filter in your camera adaptor with a standard 1.25" filter thread, and can be used with CCD or dslr cameras.

At the centre of the Baader UHC-S filters are their special fineoptical substrate polishing process and advanced coating design. The outcome is a filter that imparts no image degradation, in contrast to many other lesser quality filters.

To protect against deterioration from cleaning or exposure to moisture, several other filters sometimes turn to sandwiching their delicate coatings in between 2 layers of filter glass, contributing to possible blurred or double images.

The combination of hardened coatings and fine optical substrate of the Baader UHC-S filter eliminates this image degradation.

Perhaps the most common misperception tends to be that deep sky observing is restricted to low powers, and image resolution is not as significant as in planetary observation.

When the simple truth is, high magnifications are quite common and useful for researching fine details, notably for the brighter diffuse and planetary nebulae.

These filters can take high magnifications, and stars keep their pinpoint sharpness, even in the event that the filter is employed way in front of the image plane.

Baader filters definately satisfy all of the prerequisites of an ideal filter, which is to accomplish their filtration at highest functionality without any detectable effect on the image.

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