About this product
Astro Essentials M42 (T) Extension Adapters
These individual T / M42 extension tubes are available in 5mm, 10mm, 15mm, 20mm & 30mm lengths.
Suitable for use with a wide variety of T / M42-threaded equipment and can be used singly or in combination to achieve the desired back focus.
Black anodised Aluminium.
M42x0.75 male thread at one end and M42x0.75 female thread at the other.
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