The Starlight Model 3545 Focuser mount screws directly on to the Starlight 4.1" x 24tpi thread on the end of the focuser drawtube. The same thread is used on the Astro-Physics 3.5-inch focuser drawtube as well as Yuri's original focuser for the TEC-180 telescope.

This adapter presents the OPTEC-3600 dovetail for attachment of any device with an OPTEC-3600 receiver including the Perseus Instrument Selector, original TCF-S3 focusers, TCF-Leo, Hercules, or Aquila 88 as well as the now discontinued Pyxis 3" rotator and IFW-3 Intelligent Filter Wheel.

Telescope-side Compatibility:

Starlight Instruments FTF3545 large focuser drawtube,
Astro-Physics 3.5-inch focuser (replaces Doveloc adapter S35RFAA)
Original TEC-180 focuser designed by Yuri.

Camera-side Compatibility:

TCF-S3 series original focuser with OPTEC-3600 base,
TCF-Leo low-profile focuser,
Aquila 88 camera rotator,
Hercules 3-inch focusing rotator,
Pyxis 3" rotator,
Perseus 4-port instrument selector,
Any OPTEC-3600 receiver.

Overall Height: 0.74" (18.7mm)
Clear Aperture: 3.05" (77.5mm)
Weight: 3.8 oz (110 g)
Back-focus Usage: 0.38" (9.7mm)

#17812 - Starlight Model 3545 to OPTEC-3600 Dovetail Mount

Quantity

In Stock: 11