Alstar Astronomical 2"/M48-extension Tube Kit for cameras and eyepieces - Length 5mm 8mm 10mm 20mm 30mm M48x0.75 on Both Sides
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Description
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The extension tube has a M48x0.75 interior thread and a M48x0.75 exterior thread for elegantly solving spacing problems in astrophotography The required spacing can be achieved by combining several extenders of differing lengths; you can use 1 piece; 2 pieces; 3 pieces or 4 pieces of the extension rings as you like Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners Male threa: M48x0.75; Female thread: M48x0.75; Eliminates a range of focusing problems All metal construction and anodizing aluminium process; resistant for long time use
Description
(1)
The extension tube has a M48x0.75 interior thread and a M48x0.75 exterior thread for elegantly solving spacing problems in astrophotography The required spacing can be achieved by combining several extenders of differing lengths; you can use 1 piece; 2 pieces; 3 pieces or 4 pieces of the extension rings as you like Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners Male threa: M48x0.75; Female thread: M48x0.75; Eliminates a range of focusing problems All metal construction and anodizing aluminium process; resistant for long time use
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