Blue Fireball 2" to 1.25" Eyepiece Adapter

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New Version: Please note that our current stock of this adapter is slightly longer than the one sold previously (35mm long now compared to 30mm previously). This improves the clearance for 2" filters if you do use one with this adapter.
This popular eyepiece adapter allows 1.25" eyepieces and accessories to be used in 2" focusers, diagonals and barlows. It includes a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. It is precision machined from aluminum and anodized black.
Threaded to accept standard 48mm filters so you can use your 1.25" eyepieces with your 2" filters (be careful not to let the eyepiece barrel hit the filter though).
Specifications:
- Total height = 1.38" (35mm)
- Optical length = 0.39" (10mm)
- female M48 thread length (including unthreaded undercut) =0.24" (6mm)
- Weight = 4.3oz
Other Information
- Country of Manufacture: Taiwan
New Version: Please note that our current stock of this adapter is slightly longer than the one sold previously (35mm long now compared to 30mm previously). This improves the clearance for 2" filters if you do use one with this adapter.
This popular eyepiece adapter allows 1.25" eyepieces and accessories to be used in 2" focusers, diagonals and barlows. It includes a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. It is precision machined from aluminum and anodized black.
Threaded to accept standard 48mm filters so you can use your 1.25" eyepieces with your 2" filters (be careful not to let the eyepiece barrel hit the filter though).
Specifications:
- Total height = 1.38" (35mm)
- Optical length = 0.39" (10mm)
- female M48 thread length (including unthreaded undercut) =0.24" (6mm)
- Weight = 4.3oz
New Version: Please note that our current stock of this adapter is slightly longer than the one sold previously (35mm long now compared to 30mm previously). This improves the clearance for 2" filters if you do use one with this adapter.
This popular eyepiece adapter allows 1.25" eyepieces and accessories to be used in 2" focusers, diagonals and barlows. It includes a brass compression ring that restrains the eyepiece and prevents marring of the eyepiece barrel by the metal set-screw. It is precision machined from aluminum and anodized black.
Threaded to accept standard 48mm filters so you can use your 1.25" eyepieces with your 2" filters (be careful not to let the eyepiece barrel hit the filter though).
Specifications:
- Total height = 1.38" (35mm)
- Optical length = 0.39" (10mm)
- female M48 thread length (including unthreaded undercut) =0.24" (6mm)
- Weight = 4.3oz
Other Information
- Country of Manufacture: Taiwan

Blue Fireball 2" to 1.25" Eyepiece Adapter
