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- Vernonscope Adapter to Attach Standard 1.25" Astronomy Filters to Brandon Eyepieces # 114ADAPTBRNDN
Brandon eyepieces use a non-standard proprietary filter thread. This Vernonscope adapter screws into the bottom of 1.25" Brandon eyepieces so that filters with the industry standard 1.25" filter thread (M28.5x0.6) from other manufacturers can be attached to Brandon eyepieces.
At least two useful 1.25-inch filters that are threaded ONLY for the Veronscope/Brandon series of eyepieces are the Wratten #30 (magenta) and #85 (salmon). This adapter ring allows these useful filters to be used in many other observing applications. If fact, if the filter glass is unscrewed from the non-standard housing, and then placed into the adapter ring and secured with the retaining ring from the non-standard housing, then these useful filters can be threaded into a standard filter slide/wheel.
NOTE: I use this adapter ring on the #30 (magenta) filter (sold by Agena here => agenaastro.com/brandon-1-25-filter-30-magenta.html) as an excellent filter for helping to see detail on Mars.
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