OIII

Omegon Filters OIII filter 1.25''

Product no.: 15625
Manufacturer: Omegon

$ 76.66

plus shipping costs

Product description:

The Omegon OIII filter is comparable to the Omegon UHC filter in its function. The difference is that this filter only allows the light of doubly ionized oxygen through. This means that there is an enormous increase in contrast with diffuse, planetary and extremely dim nebulae. This is a special narrowband filter which allows an even smaller range of wavelengths than the Omegon UHC filter. Even so, there are innumerable astronomical objects which can be first observed in detail with this filter or cannot be seen at all without it. A prime example is the Veil nebula in the constellation of Cygnus.

An Omegon OIII filter is not only useful at light-polluted sites; the contrast is also increased at dark sky sites. The Omegon OIII filter can be used with all 1.25 in eyepieces.

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Omegon Filters OIII Filter 2"

Product no.: 15627
Manufacturer: Omegon

$ 109.95

plus shipping costs

Product description:

The Omegon OIII filter is comparable to the Omegon UHC filter in its function. The difference is that this filter only allows the light of doubly ionized oxygen through. This means that there is an enormous increase in contrast with diffuse, planetary and extremely dim nebulae. This is a special narrowband filter which allows an even smaller range of wavelengths than the Omegon UHC filter. Even so, there are innumerable astronomical objects which can be first observed in detail with this filter or cannot be seen at all without it. A prime example is the Veil nebula in the constellation of Cygnus.

An Omegon OIII filter is not only useful at light-polluted sites; the contrast is also increased at dark sky sites. The Omegon OIII filter can be used with all 2in€ eyepieces.

Omegon Filters Pro 2'' OIII CCD filter

Product no.: 47293
Manufacturer: Omegon

$ 154.95

plus shipping costs

Manufacturer's product description:

Omegon pro OIII filter - the planetary nebulae ace

This filter shows you just what is possible with your telescope! - superior observing of planetary nebulae and supernova remnants. A nebula that you might previously have only dimly glimpsed suddenly pops out clearly in front of your eye. Go and have a look out there!

The advantages in a nutshell:

enhances planetary nebulae and supernova remnants
12nm bandpass - darkens the sky and enhances the nebula
suitable for telescopes from 200mm aperture upwards
comes with its own test certificate

Dreamlike contrast - see significantly more nebula
This is made possible by the technology employed with this interference filter. It allows through the narrow range of wavelengths from doubly ionized oxygen. Whether under a light polluted or a pristine dark sky - this filter allows you to see objects more clearly because it enhances the contrast between the object and background of the night sky. This filter has a 12nm bandpass, so it only allows a very narrow range of light frequencies to pass through. It and also keeps unwanted stray light away.
When you first see the Veil nebula in Cygnus using the filter you will be thrilled. Without a filter, any detail can only be observed with very large instruments. But the OIII filter lets its unexpected extent be seen even in small telescopes. You will see the universe with completely new eyes.
You can also observe:

Dumbbell nebula, M27

Omega nebula, M17
Owl nebula, M97
Eagle nebula, M16
and many more

For which telescopes?

The Omegon pro OIII filter is ideal for medium and large telescopes - perfect for apertures of 200mm and upwards. It can also be used with small telescopes when used at low magnification.

Omegon pro filter with its own test certificate

You benefit from the fact that each Omegon pro nebula filter has been fully tested by us and comes with its own test certificate. This certificate is proof of the quality of your filter.

Our expert comment:

The filter is offered by us as a CCD filter as it selectively passes the OIII line but allows no red through.

We also tested the filter visually on the telescope, where it also delivers a good result when visually observing, but shows slightly less stars than a red-permeable filter.

(Bernd GÃ¤hrken)