Custom FLI PDF focuser exclusively made for Dream.


This electronic focuser offers a theoretical step size of 1.3 microns and is therefore an excellent choice for faster optical systems. It is the only focuser Dream has tested that offers the repeatability that we require. It has also been used around the world by amateurs and professionals alike.


You can read more about the general specifications of this focuser here.
 

 


You can distinguish this "Dream" PDF from the standard model in two ways. One is the text below the FLI logo and the other is on the motor side of the PDF.

The housing has been modified to allow the focuser to bolt directly to the Optical Tube Assembly. It also allows push/pull collimation of the focuser.


 

Click on the small image to see the push/pull locations on the Dream PDF.

This eliminates the need for a custom adaptor on the OTA side of the focuser. It also allows a much wider connection to the OTA.

You can see the three large 3/8" tapped holes around the periphery of the unit, which is 8" OD.
 

The wider connection means a more stable platform and finer adjustments for tip/tilt. 
 

Additional metal was left in next to the 3/8" tapped holes for the push screw to drive against, which would have caused flexure in the standard PDF unit. 
 

 


 

 
 


pricing, availability and specifications subject to change without notice