TCF-S3 motorized Focuser 3" - Temperature Compensated Focusing with high Precision

The TCF-S has a big brother - the TCF-S3. This heavy focuser has all the same features of the TCF-S but is just bigger and stronger. With the ever-increasing size of CCD cameras and associated instruments, the need for a precision digital focuser that can take the weight and is compatible with most of the camera control software available is now met.

No corners were cut with this model. The massive drawtube has a 3 inch I.D. and is made from 7075, the strongest of the commercial aluminium alloys. To prevent any slippage common to Crayford style focusers, the drive rod is pressed onto the drawtube with a force of about 500 pounds. The TCF-S3 can take this extreme pressure because the drive rod is made from a ground bar of high speed steel with a diameter of 0.375 inch. Hardened rails of stainless steel are embedded in the drawtube to engage the drive rod and take the strain.

The total linear travel of the drawtube is 1 inch with a resolution of 0.0001 inch. Like the TCF-S, a control box with IN and OUT pushbuttons, serial computer interface and digital display control all functions of the TCF-S3. All other features of the TCF-S3 are similar to the TCF-S. It uses the same cables, temperature probe and the new remote keypad. It is also compatible with the current Optec control software TCF-S.exe.

Please contact us for the necessary adapter for your telescope / camera combination or additional acessories.


Delivery contains:

• 3" Crayford Focuser with Temperature Sensor
  
• Controller Box
  
• Software