TeleVue 0.080" (2 mm) Long Accessory Tube for 2.4" - TLG-0080 kid's telescope Dob Base Dimensions: 29" x

Dob Base Dimensions:  29" x 20

Then you have a conventional Eq-mount Newtonian scope

Rubber grip and hard black anodize finish with orange ring

Linear Field of View (@1000 yds): 105ft @ 20x 53ft @ 60x

erect-image diagonal

TeleVue 0.080" (2 mm) Long Accessory Tube for 2.4" - TLG-0080 kid's telescope Dob Base Dimensions: 29" xTeleVue 0. 080" (2 mm) Long Accessory Tube for 2. 4" The Tele Vue 0. 080" Length Accessory Tube for 2. 4" adds 0. 080" (2 mm) extension between Imaging System accessories. Extension Tubes are sometimes necessary to position the imaging camera's sensor far enough backwards to match the focal plane location of your scope.