OPTEC - 3" Drawtube Adapter To 3" Extender Tube For 3" Instruments
The #17816 3-inch Adjustable Extender Tube adds anywhere from one to three inches of back-focus to your optical setup by making use of V-grooves that are set at multiple points along the body of the tube. The back of the tube presents an OPTEC-3000 dovetail to attach to any product with an OPTEC-3000 receiver, including the TCF-S3, IFW-3, and Pyxis 3" rotator.
The OPTEC-3000 3-inch mounts "push-fit" in to any 3-inch receiver including the TCF-S3, IFW-3 #17367 Rear Cover Plate, and Pyxis 3" rotator.
|Name||Optec - 3" to 3" Extender tube. Extends focus range from 1.0 to 3.1 inches - can be cut to size.|