Baader 50.4mm LRGB CCD-Filterset. The50.4mm LRGB CCD-Filterset fromBaader has a glass thickness of 3mm so in this way the filters are homofocal. The L-filter is a standard Baader UV/IR blocking filter and can be utilized both for centring and for taking a luminance picture.
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Note : The LRGB filters include IR-block coatings so the clear filter is necessary if you wish to image the full spectrum, including IR, otherwise you need only order the LRGB filters. All the filters, including the clear filter, are very nearly parfocal so there is little or no need to refocus between filter changes.
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Baader LRGB CCD 36mm With LPFC Filterset. The Baader Blue filter passes virtually all of the H-Beta and O-III lines, while the Green filter is able to capture all of the O-III line without encroaching into the H-Beta line.
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Note : The LRGB filters include IR-block coatings so the clear filter is necessary if you wish to image the full spectrum, including IR, otherwise you need only order the LRGB filters. All the filters, including the clear filter, are very nearly parfocal so there is little or no need to refocus between filter changes.
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Note : The LRGB filters include IR-block coatings so the clear filter is necessary if you wish to image the full spectrum, including IR, otherwise you need only order the LRGB filters. All the filters, including the clear filter, are very nearly parfocal so there is little or no need to refocus between filter changes.
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