Enhance your astrophotography with the Astronomik MaxFR OIII 12nm Narrowband Filter. Designed for maximum contrast and clarity, this advanced filter isolates the OIII wavelength, allowing your telescope to capture stunning nebulae details while effectively blocking unwanted light pollution. Elevate your celestial imaging with the precision and quality of Astronomik technology.

Our new MaxFR filters are made in a completely new way, designed to work perfectly with fast optical systems. The built-in well known MFR Coating technique gives you the best out-of-band blocking possible across the entire range of wavelengths from the UV up to IR! Your advantage of our new design is a extremly high contrast, minimized stray light, no halos and needle-sharp stars. The Astronomik MFR narrowband-emissionline filters give you the best quality of data: The best start material to be processed to a awesome final image!

For 12nm MaxFR filters this means a unlimited usability from f/1.7 to f/8 and about 85% of the maximum transmission at a f/1.4 as guaranteed.
For 6nm MaxFR filters this means a unlimited usability from f/2.2 to f/8 with about 90% of the maximum transmission at a f/2 as guaranteed performance data.

For maximum contrast the SII filter is carefully designed to block all light coming from H-alpha and NII (nitrogen).

Imaging with Narrowband-Emissionline Filters
If you have to observe from light polluted sites (like most of us...), imaging with narrowband-emissionline filters is the best way to take great images, as all kind of light pollution can be blocked very effective! Normaly an H-alpha filter should be your first step into this amazing field of astrophotography! With an Narrowband H-alpha filter you will be able to take deep and contrasty images even wih very heavy light pollution or with the full moon high up in the sky!
If you look at other astrophotos, an H-alpha is the best choice for all nebulas glowing red! An OIII filters expands your imaging possibilities, as you are able to image all greenish/blueish structures. Planetary nebulas and star forming regions are great targets! The SII filters completes your HSO-set of filters. With these three filters you are able to process your images like the ones from the Hubble space telescope!

Quality aspects of the new Astronomik MFR narrowband-emissionline filters:

MFR Coating: The 12nm Filters can be used on all instruments down to f/1.4, the 6nm filters down to f/2.
High-Quality substrate: Astronomik filters are made with stress- and striae free, opticaly polished glass. The filter itself is made of ultra thin layers on this substrate!
Parfocal filters: All Astronomik Filters are parfocal! Due to the very small thickness-tolerance the focal plane is not shifted when changing filters!
Coating: Astronomik filters are made of up to 170 layers which are coated on both sides of the substrate. These layers form the filter itself and act as a Anti-Reflection Coating.
Durability: Due to our coating technique all Astronomik filters are highly scratch resistant, not sensitive to moisture and do not degrade when getting older. Every Astronomik filter will deliver it´s full perfomance and meet the specs at the point of shipping even after lot´s of years.
Integated Blocking: All unwanted light is blocked in the whole spectral range from UV up to the IR! (You will not need an additonal UV & IR-Blocker when imaging with any of our new narrowband-emissionline filters with coating!)
Wide range of available sizes from 1,25" up to square 50mm x 50mm filters.
Delivered in a high-quality protection & storage box.
Due to our outstandding coating technique we do offer a 10 year guarantee on all of our filters.

You get the highest quality possible with every single Astronomik filter to be able to take perfect images with your instruments! Especialy the filters against ligh pollution and the narrowband-emissionline filters will expand your imaging possibilities enormous! You are investing your money for an accessory which will work in lot´s of years in the same ways it did when it was brand new. Due to our special coating technique the filters do not degrade when getting older, and due to the new MFR coating you will be able to use the filter on nearly all instruments!

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Astronomik MaxFR OIII 12nm Narrowband Filter

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