Special order only.
The SBIG FW5-STX is a 5-Position, 65mm square filter wheel for STX series cameras. 65mm square filters allow the use of the built-in guider (if equipped) while imaging through LRGB filters.
Note: This product is obsolete but is still available (built to order) to support older STX camera models with built-in guide sensors. We strongly recommend using the FW7-STX with 50 mm filters instead, and the STX Guider if autoguiding is required. This is a more effective solution since it moves the guide sensor ahead of the filters.