TS-Optics 30mm Extension with M48 - 2" Filter Thread and 2" Diameter
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Vai al moduloM48 Extension Tube 30 mm with 2" Filter Thread
The TS-Optics M48 extension tube 30 mm is a 2" filter thread extension (M48x0.75) designed to precisely increase the distance between astronomical accessories. This adapter extends a connection with M48 thread by 30 mm, allowing accurate spacing adjustment within an optical setup.
Double M48 male / female thread
The adapter features a double-sided M48x0.75 thread, with a female thread on one side and a male thread on the other. It can be screwed directly into the M48 filter thread of 2" eyepieces or 2" adapters, extending the barrel and improving the fitting accuracy between accessories.
Useful for observation and astrophotography
This type of extension is widely used in many areas of astronomy. The M48 extension allows precise adjustment of the distance between optical accessories and helps achieve the correct spacing required by the optical system.
In astrophotography, maintaining the correct distance between an optical corrector and the camera sensor is essential. Even a few millimetres can affect optical performance, and the 30 mm M48 extension helps achieve the required spacing with precision.
Solid metal construction
The extension tube features a metal barrel with black anodized finish, ensuring mechanical strength and helping to reduce unwanted reflections inside the optical path.
Technical specifications
| Material | Metal |
| Color | Black anodized |
| Thread | Double-sided 2" filter thread M48x0.75 (female/male) |
| Optical length | 30 mm |
| Outer diameter | 2" |