50mm long extension tube with M90x1 thread, suitable for the 8" Ritchey-Chrétien and Classical Cassegrain scopes.
Manufacturers & Suppliers of Astronomical Telescopes Since 1976
GSO 50mm Extension for RC CC 8"
GSO - TAIWAN
50mm long extension tube with M90x1 thread, suitable for the 8" Ritchey-Chrétien and Classical Cassegrain scopes.