• Eliminate focus problems:The inner thread of the extension tube is M48*0.75 and the outer thread is M48*0.75, which elegantly solves the spacing problem in astrophotography and eliminates a series of focusing problems;
• Variable Combination:The desired spacing can be achieved by combining several extenders of different lengths Use this extension tube to obtain the correct image scale or the exact spacing required by the reducer or field flattener;
• Aluminum alloy material:High-quality all-metal structure and anodized aluminum process, durable;
• Eliminate Excessive Light:The internal thread design can eliminate stray light and reflected light, making the image clearer and more perfect;
• 100% Satisfaction:We provide 1 year warranty. If you have any questions about our products, please feel free to contact us.

• Meet different needs;The required spacing can be achieved by combining several extenders of differing lengths; You can use 1 piece; 2 pieces or 3 pieces of the extension rings as you like;
• Fully metal construction and anodizing aluminium process; durable for long time use;
• Use SV129 extension tube kit for getting the correct image scale or the exact spacing required for reducers or field flatteners;
• Male thread and female thread both are M48*0.75mm; Solving spacing problems in astrophotography and eliminates a range of focusing problems;
• Made of aluminum alloy and durable.

• Fully metal construction and anodizing aluminum process;durable for long time use;
• Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners;
• T2 interior thread and T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems;
• Astronomical T2 thread extension tube;male thread:M42x0.75mm;female thread: M42x0.75mm;
• Link or extend tube length of the M42*0.75 products;Male thread;M42*0.75mm;

• Male thread and female thread both are M48*0.75mm;Solving spacing problems in astrophotography and eliminates a range of focusing problems;
• Sturdy material;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 fully aluminum alloy and durable;

The SVBONY SV157 1.25 "extension tube is threaded at the end to accommodate a standard 1.25" filter. It is made of all-metal material and has a long service life. The inside of the SV157 has full threads to reduce reflected light.

Svbony SV158 2'' telescope eyepiece extension tube with protective brass ring.

The Variable Extension Tube is an all-metal structure and anodized finish, so it has a long service life. It has internal T2 threads and external T2 threads, with a variable extension of 24-35mm.

Svbony spotting scope could work with Canon or Nikon camera, then you will need this Svbony photography extension tube.

Super easy to use;eyepiece put into the extended cylinder;then screw t adapter;t ring adapter and extended cylinder together;then attach the camera to telescope manual focusing then get a clear image;fit for Nikon EOS DSLR SLR only
The SVBONY extended cylinder length 68mm;the extension tube fits all standard 1.25" telescopes and microscope;it can adjust eyepiece location;get more sharp images and different photographic results
Metal materials;fit any 1.25'' diameter eyepiece holder telescope and microscope;one time purchase for long term use
Added filter thread on the bottom for any 1.25-inch filter;Made of high quality aluminum alloy and durable