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Optolong L-eXtreme Dual Band Narrowband Filter

Optolong L-eXtreme Dual Band Narrowband Filter£163.00  -  £209.00



Speciality Filters

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Baader C2 Swan Band 15nm Filter

Baader C2 Swan Band 15nm Filter£68.00  -  £137.00

The Baader C2 SWAN-Band-Filter with ≤ 15 nm Half-Band-Width isolates the two C2 lines at 511 and 514nm – leading to a contrast gain for comet hunters!

Baader Solar Continuum Filters

Baader Solar Continuum Filters£73.00  -  £160.00

This Baader Planetarium Solar Continuum Filter comes in a fully-threaded 1.25" & 2" round cell.
Works in conjunction with a primary white light solar filter (or Herschel Wedge Prism) to show more granulation and sunspot detail!

Baader 7.5nm Solar Continuum Filters (540nm)

Baader 7.5nm Solar Continuum Filters (540nm)£101.00  -  £170.00

The Solar Continuum Filter is practically a narrow band photosphere filter for solar observation in white light. It provides the highest contrast in the photosphere of the sun.

Astronomik OWB CCD Type 3 EOS Clip Filter

Astronomik OWB CCD Type 3 EOS Clip Filter£116.00

The OWB filter would usually not be designated as an "astronomical" filter. The intention is to enable converted DSLR cameras (without inbuilt IR-filter) in order to be used for 'terrestrial' photography.

Optolong L-eXtreme Dual Band Narrowband Filter

Optolong L-eXtreme Dual Band Narrowband Filter£163.00  -  £209.00

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and
monochrome CCD cameras, it is also more suited for fast systems.

Baader U Venus Filter 1.25''

Baader U Venus Filter 1.25"£206.00

Baader U-Filter for Venus and UV imaging
Transmission peak approx. 80% at 350nm, bandwidth 60nm (320-380nm), completely blocking the entire spectral range from 200nm to 1120nm

Astrodon UVenus UV Filter

Astrodon UVenus UV Filter£209.00  -  £219.00

Astrodon introduces a breakthrough in UV filters for CCD imaging. A durable, hard-coated UV filter of the highest quality having the best transmission available.

Baader U Filter 2'' (ZWL 350NM)

Baader U Filter 2" (ZWL 350NM)£259.00

A new generation Venus filter that allows Amateurs to image fine detail on Venus for the first time. The latest coating technologies permit the Baader Venus Filter to transmit from 300nm to 400nm, with a peak transmission of 80%!

Optolong Planetary Filter Kit

Optolong Planetary Filter Kit£259.00  -  £379.00

Optolong Planetary filters kit including UV/IR Cut, R, G, B, and IR685, 5pcs filters in total. These five filters are boundled by “Solar System Seal”.

Baader 1.25'' Calcium K-Line Filter With Baader ND3.8 AstroSolar Film

Baader 1.25" Calcium K-Line Filter With Baader ND3.8 AstroSolar Film£287.00

For solar work use only with 3.8 AstroSolar 200x290mm Photo Film (included). Never use any eyepiece filter for solar observation without objective front filter. Non-ageing sealed coating edges.

IDAS NBZ Nebula Booster Filter

IDAS NBZ Nebula Booster Filter£289.00

IDAS NBZ Filters are designed to enhance the contrast of Hα and OIII emission nebula, yet accommodate the filter spectral shift when used with modern fast optical systems. This dual-band filter is ideal for one-shot color cameras as well as mono-color astronomical cameras.

Optolong L-Ultimate Dual-Band 3nm Filter 1.25''

Optolong L-Ultimate Dual-Band 3nm Filter 1.25"£289.00

It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue).

Optolong L-Ultimate Dual-Band 3nm Filter 2''

Optolong L-Ultimate Dual-Band 3nm Filter 2"£389.00

It's about a 3nm dual band designed to drastically reduce the effect of light pollution, the 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue).

Baader SunDancer II H-Alpha Solar Filter

Baader SunDancer II H-Alpha Solar Filter£3,049.00

The Baader SunDancer II (with heated H-alpha Etalon from SolarSpectrum) transforms an existing telescope quickly and easily into a professional H-alpha telescope!

  

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