T Mount Extension Tubes

Extension tubes with internal and external M42x0.75 T threads. Available individually in 5,10,20,and 40mm lengths. Or in a set of 4 which will allow fixed extensions between 5mm and 75mm in 5mm increments. These have applications in astro-photography and microscopy.

We also supply an insert which enables M39 lenses to be used as a macro lens directly on the end of the tubes. With the appropriate T2 MOUNT (available extra), this can be used as a versatile macro system.