The adapter in the example image represents the connection of a Guide TA435 thermal camera ballast. For newer devices, where our website does not mention a ballast side part, the ballast usually already has the M52 x 0.75 thread shown in the middle figure. In these cases, it is enough to buy the stirrup, but there may also be products, e.g. certain Pulsar products, where the ballast side part e.g. bayonet lock on the opposite side of the thread. In such cases, the necessary accessories are marked below the product.

The clamping adapter can only be connected to a suitable M52 x 0.75 thread on the thermal imager side. One must be purchased for the diameter of the outer tube of the scope's front lens.