Prime focus ring n°30

The prime focus photo adapter with T thread for the Takahashi Mewlon telescope

This adapter is mainly intended for mounting cameras at the primary focus of Takahashi Mewlon telescopes. It can also be used as a M43 male to M42 male conversion ring, if needed for other types of mechanical mounts.

The input mechanical interface has a M43 x 0.75 male thread. The output mechanical interface has a M42 x 0.75 male thread (T-thread). The standard T thread allows you to get a complete photographic train fully screwed at the focus of the Mewlon, whether it is a simple DSLR or a camera equipped with an off-axis guider or a filter wheel.

The reference surfaces, in and out, are shown on the schematic of the Characteristics section. We invite you to refer to the system-charts that are specific to your Takahashi Mewlon telescope to know what kind of assemblies is possible.


Mechanical characteristics

Characteristic Takahashi Mewlon prime focus ring
Item number TKA00206
Mechanical input M43 x 0.75 male thread
Mechanical output M42 x 0.75 male thread (T-thread)
Metal back distance 4 mm
Dimensions Height : 14 mm. Diameter : 48 mm
Weight 15 g

Half-section schematic view

Mechanical input, mechanical output and metal back distance of the Takahashi Mewlon prime focus ring