Blue Fireball 1.25" Eyepiece Extension Tube with 1" Extension
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Description/Uses:
- Adds 25.4mm (1") of back-focus travel to your telescope focuser *
- Fits standard 1.25" eyepiece tubes in telescopes and accessories like diagonals
- With this, eyepieces and accessories that you may not have been able to use because your telescope tube was too short are usable again
Features:
- Threaded to accept standard 1.25" astronomy filters
- Features a brass compression ring so the inserted accessory will not be scratched or dented by the locking thumbscrew
Specifications:
- Total Length = 1.98" (50.4mm)
- Outside Length of Upper 1.25" Barrel = 1" (25.4mm)
- Inside Length of Upper 1.25" Barrel = 0.92" (23.4mm) *
- Length of Lower 1.25" Barrel = 0.91" (23mm)
- Maximum Outer Diameter (Excluding Thumbscrew) = 1.5" (38mm)
- Thread Specification (Telescope End) = M28.5x0.6 Female
- Thread Specification (Thumbscrew) = M4x0.7 Male
- Weight = 1.2oz (34g)
Additional Information:
* If the inserted eyepiece does not fully slide into the upper 1.25" barrel, additional in-focus travel will be required by the amount the eyepiece extends out
Other Information
- Country of Manufacture: China
Description/Uses:
- Adds 25.4mm (1") of back-focus travel to your telescope focuser *
- Fits standard 1.25" eyepiece tubes in telescopes and accessories like diagonals
- With this, eyepieces and accessories that you may not have been able to use because your telescope tube was too short are usable again
Features:
- Threaded to accept standard 1.25" astronomy filters
- Features a brass compression ring so the inserted accessory will not be scratched or dented by the locking thumbscrew
Specifications:
- Total Length = 1.98" (50.4mm)
- Outside Length of Upper 1.25" Barrel = 1" (25.4mm)
- Inside Length of Upper 1.25" Barrel = 0.92" (23.4mm) *
- Length of Lower 1.25" Barrel = 0.91" (23mm)
- Maximum Outer Diameter (Excluding Thumbscrew) = 1.5" (38mm)
- Thread Specification (Telescope End) = M28.5x0.6 Female
- Thread Specification (Thumbscrew) = M4x0.7 Male
- Weight = 1.2oz (34g)
Additional Information:
* If the inserted eyepiece does not fully slide into the upper 1.25" barrel, additional in-focus travel will be required by the amount the eyepiece extends out
Description/Uses:
- Adds 25.4mm (1") of back-focus travel to your telescope focuser *
- Fits standard 1.25" eyepiece tubes in telescopes and accessories like diagonals
- With this, eyepieces and accessories that you may not have been able to use because your telescope tube was too short are usable again
Features:
- Threaded to accept standard 1.25" astronomy filters
- Features a brass compression ring so the inserted accessory will not be scratched or dented by the locking thumbscrew
Specifications:
- Total Length = 1.98" (50.4mm)
- Outside Length of Upper 1.25" Barrel = 1" (25.4mm)
- Inside Length of Upper 1.25" Barrel = 0.92" (23.4mm) *
- Length of Lower 1.25" Barrel = 0.91" (23mm)
- Maximum Outer Diameter (Excluding Thumbscrew) = 1.5" (38mm)
- Thread Specification (Telescope End) = M28.5x0.6 Female
- Thread Specification (Thumbscrew) = M4x0.7 Male
- Weight = 1.2oz (34g)
Additional Information:
* If the inserted eyepiece does not fully slide into the upper 1.25" barrel, additional in-focus travel will be required by the amount the eyepiece extends out
Other Information
- Country of Manufacture: China
Blue Fireball 1.25" Eyepiece Extension Tube with 1" Extension