TUBE RINGS. CNC machined, black anodized aluminum, compact
and lightweight design with stainless steel latches
(set of two rings weights 750g). Ring dimensions and hole
pattern are shown in the apo140ed pdf manual. Each ring
contains: Upper Base; Latch; and Lower Base. Latches for
the scopes of the last run are adjustable. The screw
has a Phillips type head for easy adjustment, the
small nut will hold screw in place after adjustment.
Rings can be attached to the mount with either TEC
Dovetail plate, AP or Losmandy plates.