A-P Quad TCC setup with TEC 140 APO and QSI camera
Stock TEC 140 setup without endcap.
A-P S35RFAA endcap attached.
A-P Quad TCC inserted inside S35RFAA endcap.
A-P Quad TCC fully inserted inside S35RFAA endcap.
A-P 18.3mm A2680 Back Focus spacer attached to Quad TCC.
A-P A3513-A QSI camera adapter attached to A2680 Back Focus spacer. Note that your QSI camera must have 2.156" camera opening instead of T-Thread to work with A-P A3513-A QSI camera adapter.
Finally QSI camera attached to A3513-A QSI adapter. It just cannot be any easier!!