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.
The extension tube has a T2 interior thread and a T2 exterior thread for elegantly solving spacing problems in astrophotography.
All metal construction and anodizing aluminium process, resistant for long time use.
Male thread - M42*0.75. Female thread - M42*0.75,eliminates a range of focusing problems.
Alstar 2" Color/Planetary Filter for Telescope - #80A Blue
KWD 13.500
Alstar 2" Narrowband O-III Filter - Produces Near-Photographic Views of The Veil, Ring, Dumbbell and Orion Nebula, Among Many Other Objects
KWD 35.500
Alstar Guide Scope Mount - The Convenient Way to Mount Your Guide Scope
KWD 62
Alstar 2" Narrowband NBPF Hydrogen-a 12nm Filter - Enhances The Contrast Between Object and Sky - Allows You to Take Images Even Under Urban Skies
KWD 55.500
