The Hercules Telescopes focuser is a masterpiece.  

 

With it's sleek and perfectly cylindrical design, it can fit where space is limited or in the middle of a prime focus telescope like our HTP500.  It's Rigidity and high precision without backlash make the HF4 focuser a perfect choice for an high quality image train.

 

The linearity movement is made using precision guide rails that stay perfectly aligned even at outermost position with lot of weight.

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HF4 is design so that a 4 inches corrector can fit inside and save space on your image train. 

Camera adaptor can be mounted on the focuser using 105 X 1mm thread or with 6 X M4 screws.

(Adaptors can be found at preciseparts.com)

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The HTEC commander is request to use the HF4 (Optional).