M42 (T2) Extension Tube Artesky 15mm
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Vai al moduloThe Artesky M42 (T2) extension tube 15mm is a spacer ring with M42x0.75 male/female thread, used to adjust the back focus in the optical train.
What it's for
It is fitted between two T2-threaded components (camera rings, filter wheels, CCD/CMOS cameras, focal reducers) to add exactly 15mm of distance, achieving the back focus required by the optics.
Who it's for
Essential for astrophotographers who need to fine-tune the sensor-to-optics distance, especially with reducers or field flatteners that require a specific back focus.
Specifications
| Thread | M42x0.75 (T2) male/female |
| Length | 15 mm |
| Brand | Artesky |