Feature
●Male thread and female thread both are M48*0.75mm; Solving spacing problems in astrophotography and eliminates a range of focusing problems
●High quality;Fully metal construction and anodizing aluminium process; durable for long time use
●Meet different needs;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
●SV119 extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
●Made of high quality aluminum alloy and durable
Description
Use this extender tube adapter for obtaining the correct image scale or for the exact spacing required for a reducer or field flattener; Get to the right focal plane for focusing with a camera or eyepiece
4 Pcs Extension Tube Kit
The required spacing can be achieved by combining several extension tubes of differing lengths, you can combine them to get whatever extension you need when using a corrector or barlow.
Eliminates a range of focusing problems. You can extension tube use this with any camera or eyepiece or with various adapters. The M48*0.75 threads on both ends make it extremely versatile.
The extension tube adapter is fully metal construction and anodizing aluminium process is durable for long time use; 72.9g / 2.57oz net weight is light and will not be extra burden for your devices.
Comparison
 T2 Thread Extension Tube |  Variable Extension |  T2 Extension Tube Kit |  80ED Telescope |  1.25 Inch Extension Tube |  Aluminum T-Ring Adapter |  T2 Mount Ring Adapter | |
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Feature 1
| 8mm 25mm 45mm | 24-35mm variable extension | 5mm 10mm 30mm | Extra-low dispersion glass | 68mm | 48mm | All matte black design |
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Feature 2
| T2 thread | M42x0.75 thread | M42x0.75 thread | Dual-speed focuser | T2 T ring adapter | M42x0.75 thread | Manual focus |
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Feature 3
| Lightweight | Diversified use design | Blackened edges design | Fully multi-coated | T thread interface | Grub screws | Easy to use |
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Scope of use
| Get the correct image scale | Compatible with Canon or Nikon | Obtain the correct image | For astrophotography | Compatible for Nikon | Compatible with Nikon | Compatible with Sony |
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Material
| Metal material | Metal material | Metal material | Fine grain baking paint | Metal material | CNC machined of aluminum | Metal aluminum |