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The Optolong L-Pro filter is designed to provide maximum transmission of the spectrum, except in those areas affected by light pollution.
This listing is for the 2″ filter and the price includes UK delivery.
Please ask about other sizes.
Please Contact Bernard at Modern Astronomy for Availability and Lead times.
The Baader Blue CCD Filter
Baader Methane band filter 889 nm, bandwith 8 nm
The Methane filter is a specialized filter, that passes a narrow passband 8nm wide in the near infrared portion of the spectrum, centered at 889nm.
The Baader Fringe Killer Filter is a high quality UV/IR block which also removes violet and some blue light. Perfect for imaging and visual use with the smaller fast Chinese achromats and many semi-apos.
Beginners CCD RGB filterset consisting of 3 colour filters (red, green, blue) and the Baader IR Cut Filter – 1.25″ size.
Midway between the Astronomik CLS and UHC in terms of bandpass, the Baader UHC-S Filter is best used visually by owners of smaller telescopes (8″ or less) for nebular observation or for general observation in areas of high light pollution.
Owners of larger scopes and imagers will get better results with the Astronomik UHC.
The Astronomik OIII Visual Filter is mainly for observing planetary nebulae, unsuitable for use with CCD cameras without an IR block.
This Astronomik UHC-E Filter was designed for visual observation of emission and planetary nebulae with smaller telescopes (<8″) but also works well for imaging these objects if used with an IR block filter.
Good combined with the Watec 120N+
The QHYCFW3-S-US (7 x 1.25″ / 31mm) Filter Wheel is the perfect addition to the QHY183M and similar cameras with smaller sensors.
Ask about quality filter options from all the major filter manufacturers
Chroma SII 5nm Narrow Band Filter
Chroma SII 5nm Narrow Band Filter
The Astronomik H-alpha 12nm CCD Clip-Filter EOS R XL is suitable for imaging of Hydrogen nebulae from sites with light pollution and from dark sites too
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