Piggyback Dovetail Bars
Piggyback Dovetail Assembly: A set of two brackets and a Losmandy style dovetail for mounting accessories on your CDK 17, 20 or 24 Optical Tube.
Note: For CDK17 users-
170990 – is for the current CDK17 design with 10.24” of backfocus
170991 – is for the original CDK17 design with 8.81” of backfocus