0.83x Telecompressor Corrector for 110mm f/6 StarFire GTX (110TCC)

Designed for: 110mm f/6 StarFire GTX

Application: Ideal for digital imaging with DSLR and CMOS cameras.

This optimized design uses three matched glass elements assembled into an air-spaced Super ED triplet lens assembly to produce an F/5 photographic speed. The Telecompressor design uses Lanthanum high-index glass and high-grade SD elements to produce sharp detail over a 35mm full-frame format. All mechanical parts, including the covers, are beautifully machined anodized aluminum with a lustrous black finish. The barrel design uses a unique dovetail for quick attachment to the focuser without introducing tilt into the optical system. 

The 110GTX operating at f/5.0 (0.83x compression) is an ideal match for the full-format CMOS cameras currently popular amongst astro-imagers. Extreme detail can be captured in very short time thanks to the fast focal ratio. This accessory is a must for fastidious astro-imagers, as the TCC provides an extended color correction range far beyond the visible range, producing high-resolution images from the latest technology in CMOS sensors. Wide-field images will be highly detailed which allows the astro-imager to make very large prints without doing time-consuming mosaics.

Included

• TCC Housing with optics optimized for the 110GTX
• Two beautifully machined and anodized covers

Back-focus spacing from the rear flange

• Back-focus distance is 95.5mm - measured from the back flange to the camera sensor.
• Back-focus distance with the optional EXT327-14.7 is 80.8mm. We offer adapters for popular CMOS as well as Nikon and Canon DSLR and mirrorless cameras based on this distance. These adapters are described below.

Use with CMOS Cameras up to 35mm

Adapters are available for use with CMOS cameras with thread sizes of 48, 54 and 68mm. These are designed for the popular CMOS cameras currently available that utilize the 55mm standard spacing. The EXT327-14.7 Back-focus Spacer is required for this image train. Refer to the 110GTX CMOS System Diagram.

ADA327-48, 3.27" to M48 Adapter (new July 2024)

ADA327-54, 3.27" to M54 Adapter (new July 2024)

ADA327-68, 3.27" to M68 Adapter (new July 2024)

Use with Canon and Nikon 35mm DSLR and Mirrorless Cameras

We recommend the optional 14.7mm Back-focus Spacer (EXT327-14.7), which will provide back-focus spacing of 80.8mm for coupling directly to our camera adapters below. Refer to the 110GTX DSLR and Mirrorless Camera System Diagram.

• Canon EOS Camera Adapter with large 1.875" (47.6mm) diameter stainless steel bayonet. (ADATCCEOS)
• Nikon Camera Adapter with large 1.73" (44mm) diameter stainless steel bayonet. (ADATCCNIK)
• Canon EOS Mirrorless Camera Adapter with large diameter stainless steel “RF” Lens bayonet. (ADACAN-RF)
• Nikon Z Mirrorless Camera Adapter with large diameter stainless steel “Z” Lens bayonet. (ADANIK-Z)

Custom Adapters

If you need an adapter for a configuration that is not described above, we recommend that you contact PreciseParts. You may also review the following diagram that shows additional components you might find useful. Keep in mind that some are legacy parts: Field Flatteners, TCCs & QUADTCC Imaging Train Options

Diagrams and Instructions

Current recommendations:

110GTX CMOS System Diagram

110GTX DSLR and Mirrorless Camera System Diagram

Legacy documents for your reference in case you own some of these components:

• Field Flatteners, TCCs & QUADTCC Imaging Train Options

• If you own items not shown in the diagrams above, please refer to the Discontinued Products section of this website and Technical Support for Legacy Products that are No Longer Available. 

Astro-Physics 80.8mm Back-focus Spacing Distance

For more information regarding the concept for the 80.8mm back-focus spacing distance, refer to this webpage: Spacers & Extensions