The Fringe-Killer Filter minimizes unwanted blue fringing comparable to a Minus Violet-Filter, while retaining a very pleasing colour balance. This would be a contradiction in itself - only made possible by applying moderm DWDM plasma assisted coating technology, allowing almost a hundred coating layers to be accumulated on to a plan optically polished substrate - without destroying the optical figure. This fine optical tool will help a small refractor to really put the advertised magnification within reach. Performance rivals that of the most expensive colour correcting lens system, costing 20 times as much.

(Note: for solar observation use only in combination with AstroSolar Safety Film!)

*Offering the brightest image of all colour correcting devices in the industry, makes the Fringe-Killer a must for even the smallest of refracting (lens type) telescope.

*Removes blue fringing as well as RED fringing above 656 nm.

*Breaks the intensity of the devastating falls blue colour in completely new way, never ever before manufactured as astronomical filter.

Forms a " Plateau" of eff. 50% transmission in the ‘blue" spectral region from 450 nm to 480 nm - being much more complete to produce than even the narrowest of all Nebula Filters.

*Retains the highest light transmission of all known colour correcting devices - be it filters or lenses - in all important deep sky wavelengths from 486/501 up to 656 nm. Light is "the hottest commodity" for high magnification work.

*Built-in Infrared Blocker, ranging from 656 to 1150 nm, makes it the perfect tool for CCD work, as well as afocal projection-photography with digital cameras for Moon & Planets.

*Subtlest of colour variations remain visible in planetary surface detail, due to the excellent colour balance.

*Combine with NEODYMIUM Moon- & Sky glow Filter (with Phantom- Group-Multicoatings) for breathtaking contrast on lunar and planetary surface detail.

*Planoptically polished, means perfect sharpness, even when mounted way in front of afocal projection (digital imaging).

*No deterioration of resolution with magnification at 300 times or more.

*Coating: Plasma assisted, hardest, scratch proof and water impermeable dielectric coatings of almost 50 coating layers on either side, most carefully designed to extend equal tension onto either side of the substrate - in order to retain a highest quality optical figure.

*Will make the performance of a simple f/8 economy refractor look like a classic f/15 Fraunhofer -Achromate. See it to believe it!