Optec TCFS-3i 3" Integrated Temperature Compensating Focuser Kit, includes: #17801, #17676, #17804, #17672, #17695, #17690 $1,795.00,Free Shipping,  Optec TCF-S3i,Telescope Accessories Accessories, Famous Brand
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OPTEC TCFS-3I 3" INTEGRATED TEMPERATURE COMPENSATING FOCUSER KIT, INCLUDES: #17801, #17676, #17804, #17672, #17695, #17690 TCF-S3i

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OPTEC TCF-S3i 3" INTEGRATED TEMPERATURE COMPENSATING FOCUSER KIT TCF-S3i

Item No. 782-20505
Manuf. No. Optec TCF-S3i

Free Shipping (within the 48 contiguous US States only)
Special Order Item Please read terms page before placing order

Optec 3" Integrated Temperature Compensating Focuser Kit, includes: #17801, #17676, #17804, #17672, #17695, #17690, TCF-S3i

The TCF-S has a new big brother - the TCF-S3. This 5 pound focuser has all the same features of the TCF-S but is just bigger and stronger. With the every 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 3.00-inch I.D. and is made from 7075, the strongest of the commercial aluminum 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 embeded in the drawtube to engage the drive rod and take the strain.

The total linear travel of the drawtube is 1.00-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.

Other telescope mounts can be made custom in our shop. This focuser is only intended for large scope with massive mounts. See price list for a list of available mounts. A 3-inch to 2-inch adapter is available to fit Optec and other standard 2-inch accessories.


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