FC-76DS Tube assembly ONLY

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Products

FC-76DS Tube assembly ONLY

TFK0761
Enquiry Item
The FC-76 series is an updated version of the original from 1980. The multi-coated fluorite rear lens and eco-glass front element provides maximum light transmission. The design takes advantage of the advances in high resolution digital imaging. It allows the focal length to be reduced by 30mm 594mm at f/7.8. The DS model features a 2.6" focuser for imaging with CCD cameras and DSLRs.

Enquire for more information or email us specifics at sales@astro.com.sg.

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The FC-76 series is an updated version of the original from 1980. The multi-coated fluorite rear lens and eco-glass front element provides maximum light transmission. The design takes advantage of the advances in high resolution digital imaging. The advanced design allows the focal length to be reduced by 30mm 594mm at f/7.8.

The DS model features a 2.6? focuser for imaging with CCD cameras and DSLRs. A sliding dew shield is also included and a larger OD 90mm tube is standard. The FC-76DS model features a the Sky-90 2.6? focuser to better hold imaging packages which include DSLR?s and CCD cameras with filter wheels. An optional dedicated flattener as well as extender are available to further enhance the capabilities of the FC-76DS.

 

PC-76DS System Charts

 

Components :

TFK0761 FC-76DS main tube (OTA)


FC-76DS Specifications

 

Design   Doublet fluorite apochromat
Diameter   76mm
Focal ratio   f/7.5
Focal length   570mm
Back focus   173mm
Tube diameter   95mm
Tube length
(with dew shield)
  660←→567mm (Retractable)
Tube Weight   3Kg 6.6lbs
With Dedicated reducer
Focal ratio   f/5.5
Focal length   417mm
Image circle   36mm
With Dedicated Flattener:
Focal ratio   f/7.8
Focal length   594mm
Image circle   40mm
With Extender Q 1.6x(FC76DS,C)
Focal Length   916mm
Focal ratio   f / 12.0
     

 

 

 

 

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