This 0.225" (5.6mm) optical disk can be placed between some guide cameras (e.g. Orion SSAG) and the T-mount Guide Camera Adapter to allow the guide camera to acheive critical focus parfocal with the main sensor.
|Name||QSI - WSG Focus Adjustment Disk|
|Custom Stock Status||This item is special order. Delivery times will vary. Place your order today and your card will not be charged until the item ships.|