Secondary Mirror Focusing System
Optec’s FastFocus Secondary Mirror Focusing System with FocusLynx Controller has proven itself to be a singularly unique solution to the limited back-focus of the Celestron EdgeHD telecopes. With the FastFocus system in place, any Fastar compatible Celestron OTA can function like many professional telescopes where only the secondary mirror moves to adjust the focus. The primary mirror and entire imaging train can be locked in place avoiding flexure and tilt at the image plane.
Charles Olivier provided much of the ” hands-on testing for our first generation fastfocus system. his review and results are available download> here.
The M27 image at left was taken with a Celestron C1100 EdgeHD using the Fast-Focus C11 Secondary Mirror Focusing System. Using FocusMax as his auto-focus software, the Fast-Focus system performs flawlessly even with incredibly small step size of just 140nm. Second generation FastFocus SMFS focuser have a slightly larger 200nm step size. Image courtesy Charles Olivier.
FastFocus is easily installed taking advantage of the removable secondary mirror of the Celestron Fastar. Installation and collimation is as simple as the popular Hyperstar f/2 imaging system. Retrofit kits for older Celestron OTA’s are available to make them Fastar and FastFocus compatible. Contact Optec Sales for details.
Optec’s FastFocus SMFS system with FocusLynx was awarded aSky & Telescope Magazine Hot Product for 2012. The official award reads,
“We got our first peak at Optec?s FastFOCUS system for Celestron Edge HD Schmidt-Cassegrain telescopes at the Northeast Astronomy Forum last April. Because the new telescopes are designed with a fixed optical back focus that leaves little room for a traditional precision focuser at the back of the telescope, Optec developed the FastFOCUS, which moves the secondary mirror by computer control using the company?s FocusLynx controller.”
Optec’s original press release from NEAF 2011 introduced the SMFS system.
Multiple Ways to Connect
The FocusLynx Control Hub acts as the central controller to link the FastFocus to any control PC. The hub includes communication ports for Serial and USB (using Optec’s USB/Serial cable) and wired Ethernet Network protocols as standard. An optional WiFi board and antenna can be added and installed at any time. Focuser 1 and an optional Focuser 2 port are available at the top of the FocusLynx hub with 12VDC Power, Network, optional Hand Control, and Serial connection ports available at the bottom. An optional aluminum mounting plate makes it easy to mount the FocusLynx Hub to any telescope pier or mount.
Any ASCOM client, Mac users of TheSky X or Equinox, or any web browser can be used to control the FastFocus focuser attached to the FocusLynx hub.
With the optional FocusLynx WiFi module installed, the FastFocus can be controlled through any iPhone or Android device.
Multiple Options Available
Each FocusLynx package comes complete with everything needed to connect. An optional Hand Control, WiFi add-on board, second stepper controller, mounting plate, precision external temperature probe, and motor-specific cables round out a complete integrated package.
Contact Optec Sales or any of our Dealers for a system specifically configured for your telescope OTA and observatory. FastFocus systems for the C-11 and C-14 (including the EdgeHD OTA) are available from stock.
Q & A
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