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M48 Extension Tube Kit for Cameras and Eyepieces, Focal Length 3 5 7 10 12 15 20 30mm, M48X0.75 on Both Sides, Extending Ring for Astronomical Telescope Photography

4.9 (2) Write Review
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$23.33

$ 11 .99 $11.99

In Stock
  • Focusing Problem Elimination: The extension tube has M48 female thread and M48 male thread, which is used to solve the spacing problem in astrophotography and eliminate a series of focusing problems.
  • Eliminate Redundant Light: The design of female thread can eliminate stray light and reflected light, making the image clearer and more .
  • Variable Combination: The required spacing can be achieved by combining several extension rings of different lengths, you can use 1, 2, 3 or 8 extension rings as required.
  • Aluminum Alloy Material: All metal structure and anodized aluminum process, , using this extension tube can obtain the correct image scale or the spacing required by the reducer or field flattener.
  • Type: Astronomic telescope M48 threaded extension tube, the height of the extension tube is 3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm and 30mm.


Product Description

2211220010111-1
YT

1. Focusing Problem Elimination: The extension tube has M48 female thread and M48 male thread, which is used to solve the spacing problem in astrophotography and eliminate a series of focusing problems.

2. Eliminate Redundant Light: The design of female thread can eliminate stray light and reflected light, making the image clearer and more perfect.

3. Variable Combination: The required spacing can be achieved by combining several extension rings of different lengths, you can use 1, 2, 3 or 8 extension rings as required.

4. Type: Astronomic telescope M48 threaded extension tube, the height of the extension tube is 3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm and 30mm.

5. Aluminum Alloy Material: All metal structure and anodized aluminum process, durable, using this extension tube can obtain the correct image scale or the precise spacing required by the reducer or field flattener.

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2211220010111-2

2211220010111-3

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2211220010111-2

2211220010111-3

1. Focusing Problem Elimination: The extension tube has M48 female thread and M48 male thread, which is used to solve the spacing problem in astrophotography and eliminate a series of focusing problems.

2. Eliminate Redundant Light: The design of female thread can eliminate stray light and reflected light, making the image clearer and more perfect.

3. Variable Combination: The required spacing can be achieved by combining several extension rings of different lengths, you can use 1, 2, 3 or 8 extension rings as required.

4. Type: Astronomic telescope M48 threaded extension tube, the height of the extension tube is 3mm, 5mm, 7mm, 10mm, 12mm, 15mm, 20mm and 30mm.

5. Aluminum Alloy Material: All metal structure and anodized aluminum process, durable, using this extension tube can obtain the correct image scale or the precise spacing required by the reducer or field flattener.

Specification:

Item Type: Focal Length Extension Tube Kit

Material: Aluminum Alloy

Gross Weight: 107g / 3.8oz

Extension Tube Height: Approx.3mm / 0.1in, Approx.5mm / 0.2in, Approx.7mm / 0.3in, Approx.10mm / 0.4in, Approx.12mm / 0.5in, Approx.15mm / 0.6in, Approx.20mm / 0.8in, Approx.30mm / 1.2in

Thread: M48X0.75

Use: for Astronomical Telescope Photography

PackageList:

8 x Extending Ring


DJK
2025-08-23 17:12:42
Adaptors sizes all clearly marked and overall the product is well made
Darren Hennig
2025-04-24 10:02:57
Great assortment of various sizes for virtually all applications. Threads fit well all my astro accessories, and came well packed and as advertised! Great value and highly recommended. THanks!