FSQ-106ED Tube assembly ONLY

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Products

FSQ-106ED Tube assembly ONLY

TQE10610
Enquiry Item
The FSQ-106ED is Takahashi's 4" astrograph. The optics produces a wide flat field with very low field curvature and astigmatism.

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

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Takahashi FSQ-106ED (Retractable Lens Shield)

The FSQ-106ED is Takahashi\'s 4\" astrograph. The optics produces a wide flat field with very low field curvature and astigmatism. An 88m image circle allows use of 35mm SLRs as well as 64 and 67 formats with full illumination

 


Components :

TQE10610 FSQ-106ED tube ass\'y OTA

 

FSQ-106ED Specifications
Optical System ・・・・・・・・・ED Apochromat Modified

                                         Petzval Quadruplet
Effective Aperture ・・・・・・・・・・・・・・・・・・・・・・・106mm
Focal Length (Prime Focus) ・・・・・・・・・・・530mm
Focal Ratio (Prime Focus) ・・・・・・・・・・・・・F/5.0
Resolving Power ・・・・・・・・・・・・・・・・・・・・・・・・・・・1.09\"
Limiting Magnitude ・・・・・・・・・・・・・・・・・・・・・・・・・11.8
Light Gathering Power ・・・・・・・・・・・・・・・・・・・・・・220X
Image Circle (Prime Focus) ・・・・・・・・・・・・・・φ 88mm
Photographic Field ・・・・・・・・・・・・・・・・・・・・・・・・φ 9.5°
Back Focus ・・・・・・・・・・・・・・・・・・・・・・・・・・186.38mm
Metal Back ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・178mm
Effective Focal Length w/Reducer ・・・・・・・・385mm
Effective Focal Ratio w/Reducer ・・・・・・・・・・・F/3.6
Image Circle w/Reducer ・・・・・・・・・・・・・・・・φ 44mm
Photographic Field ・・・・・・・・・・・・・・・・・・・・・・・・φ 6.5°
Metal back ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・72.2mm
Effective Focal Length w/Extender-Q 1.6X ・・850mm
Effective Focal Ratio w/Extender-Q 1.6X ・・・・・F/8.0
Image Circle w/Extender-Q 1.6X ・・・・・・・・・φ 44mm
Photographic Field ・・・・・・・・・・・・・・・・・・・・・・・・・・φ 3°
Metal back ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・117.5mm
Finder Scope ・・・・・・・・・・・・・・・・・・・7x50 6.3 degrees
Total Length of Main Tube ・・・・・・・580mm retracted
                                              675mm extended
Diameter of Main Tube ・・・・・・・・・・・・・・・・・・・・125mm
Total Weight of Main Tube ・・・Approx. 7kg (15.4lbs)

 

Optical Tube Assembly
Effective Aperture
106mm
Optical Design
Modified Petzval quadruplet apochromat
Focal Length
530mm
Focal Ratio
F/5.0
Resolution
1.09\"
Limiting Magnitude
11.8
Image Circle
88m - 44mm w/ Extender Q
Photographic Field
9.5° - 3° w/ Extender Q
Tube Diameter
Ø114mm
Tube Length
  675- 580m (Lens Shield Retractor)
Tube Weight
6kg (13.2lbs)
Finder Scope
7x50 6.3°

 

 

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