Teleskop Service 40 mm T2 Extension Tube
Teleskop Service T2 Extension Ring - 40 mm Long
The Teleskop Service T2 (M42 x 0.75) Extender is black-anodized and has a clear aperture of 39 mm. It sports a male t-thread on one side and a female t-thread on the other side. The T2 Extension Ring has an overall length of 40 mm, excluding the T2 external thread.