Products
FC-76DS Tube assembly complete
Enquire for more information or email us specifics at sales@astro.com.sg.
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.
Components :
| TFK0761 | FC-76DS main tube (OTA) |
| TKA00551 | 6x30 finder scope |
| TKA00562 | Finder bracket (6x30F) |
| TKA21420 | Tube holder (for FC-76DS/SKY-90) |
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 | |
![\"Data_FC_76D_SPOT_idx64003696.jpg\"](\"image/catalog/product/Data_FC_76D_SPOT_idx64003696.jpg\")
![\"Data_FC_76D_FL_SPOT_idx74415141.jpg\"](\"image/catalog/product/Data_FC_76D_FL_SPOT_idx74415141.jpg\")
![\"Data_FC_76D_RD_SPOT_idx53715177.jpg\"](\"image/catalog/product/Data_FC_76D_RD_SPOT_idx53715177.jpg\")
'