The SM1A10TS thread-to-thread adapter contains an internal C-Mount (1.00"-32) thread and an external SM1 (1.035"-40) thread. Constructed of black Delrin, it is machined with the two threads connected by a flange and can be placed at the end of a threaded tube. This adapter is useful in situations where heat transfer between components could be a problem, such as camera sensors, whose noise increases with temperature. It is typically used to mount a camera lens to an SM1 lens tube. The unpackaged weight of this adapter is 2.49 g.