TCF Focuser Series
TCF-S Temperature Compensating Focuser
The TCF-S Temperature Compensating Focuser is a most useful tool for any telescope owner, as focus is the single most important element to having a high-quality view of any astronomical object. In addition to having high resolution and low backlash from a purely mechanical standpoint, the TCF improves its focusing power with the addition of a temperature probe. This probe can monitor the temperature of the telescope tube and adjust focus to eliminate thermal focal shifts down to a resolution of 0.1° Celsius.
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TCF-S3 3" Temperature Compensating Focuser
The TCF-S3 3-inch Focuser is the big brother of the TCF-S. This larger focuser is not only bigger, but stronger in order to accommodate the ever-increasing size of astronomical instrument packages. However, the upscaling process has not impacted the focuser's performance. the TCF-S3 maintains the high degree of optical and thermal precision necessary to create the exact focus needed for both film and CCD astrophotography.
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TCF-Si/S3i Integrated-Control Focusers
Both varieties of TCF-S focuser are also available with a control system that is integrated into the focuser. This allows users to have direct computer control of their focuser and eliminates the need for an external control box and control cable, thus making this variant an excellent choice for telescope owners with limited space or surfaces.
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