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FC-76DS

The FC-76DS apochromatic refractor is equipped with a fluorite doublet at F/7.5, identical to that of the FC-76DCU.
Description

The FC-76DS apochromatic refractor is equipped with a fluorite doublet at F/7.5, identical to that of the FC-76DCU. Its 95 mm diameter tube and 50.8 mm focuser allow it to support heavier cameras than its little sister can. It is equipped with a retractable dew shield which makes it more compact than the FC-76DCU with its fixed dew shield.

The FC-76DS can be equipped with a focal reducer or with a field corrector for photography. The image circle is 36 mm diameter at F/5.5 focal ratio with the flattener and 40 mm diameter at F/7.8 focal ratio with the corrector. There is also an optional Camera Angle Adjuster (CAA) for photographic framing and a microfocuser for finer focus.

This refractor is very versatile. It allows striking observations with a light and compact tube, while offering great possibilities in deep sky astrophotography.

Characteristics

Takahashi FC-76DS refractor

Characteristic Takahashi FC-76DS refractor
Objective Fluorite doublet apochromat
Lens cell Air-spaced doublet. Fluorite in the back.
Coatings Hard multicoatings
Diameter 76 mm
At prime focus
Focal length 570 mm
Focal ratio F/7.5
Metal Back Distance 173 mm
With 76D-FL field corrector
Focal length 594 mm
Focal ratio F/7.8
Image circle diameter 40 mm
Metal Back Distance 56.2 mm
With FC/FS MFL1.04X field corrector
Focal length 589 mm
Focal ratio F/7.8
Image circle diameter 44 mm
Metal back distance 85.2 mm
With 76D-RD focal reducer
Focal length 417 mm
Focal ratio F/5.5
Image circle diameter 36 mm
Metal Back Distance 56.2 mm
With EX-Q1.6X focal extender
Focal length 916 mm
Focal ratio F/12
Metal Back Distance 157 mm

Takahashi FC-76DS refractor

Characteristic Takahashi FC-76DS refractor
Length of the optical tube 660 mm (567 mm with retracted dew shield)
Diameter of the optical tube 95 mm
Diameter of the dew shield 114 mm
Weight 3 kg
Focuser Rack-and-pinion

Spot-diagram of the Takahashi FC-76DS refractor at prime focus

Spot-diagram of the Takahashi FC-76DS refractor with 76D-FL field corrector

Spot-diagram of the Takahashi FC-76DS refractor with FC/FS MFL1.04X field corrector

Spot-diagram of the Takahashi FC-76DS refractor with 76D-RD focal reducer

Documentation

System-charts

System-chart of Takahashi FC-76DS refractor Télécharger
System-chart of Takahashi FC-76DS refractor with Extender-C2X Télécharger
System-chart of Takahashi FC-76DS with Extender-Q1.6X Télécharger

Instruction manuals

Instruction manual of Takahashi FC-76DS telescope Télécharger

Available configurations

FC-76DS refractor

Reference : [TFK07600]
[TKA00551] - 6x30 finder scope
[TKA00562] - Bracket for 6x30 finder scope
[TKA21420] - Cradle 95S
[TFK07610] - FC-76DS refractor OTA

FC-76DS refractor OTA

Reference : [TFK07610]

FC-76DS refractor
FC-76DS refractor
FC-76DS refractor OTA
FC-76DS refractor OTA