Tele Vue 3.5" Extension Tube for 2" Focusers Ilford 2005001 The Middle-Atlantic S1 Single Space

The Middle-Atlantic S1 Single Space Security Cover eliminates the possibility of tampering with your rack-mounted equipment

1 x RS-232 General Mount Compatibility Flush applications Remote Control Yes Audio 2 x 5 W at 8 ohms Power Requirements Regulated 12 VDC

1 GHz Pentium-based PC compatible or faster

UPC: 847628579620

Tele Vue 3.5" Extension Tube for 2" Focusers Ilford 2005001 The Middle-Atlantic S1 Single SpaceMade in the USA Tele Vue's 2" diameter extension tubes, available in 2" & 3. 5" lengths, are handy for retaining the optical path length when replacing a star diagonal or when focus is moved out by eyepiece projection & Barlow photography. They accept 48mm filters and have anti reflective threads & extra long locking screws which aren't likely to fall out by accident. Tele Vue's adapters use a brass clamping ring to fully encircle the device you're