Takahashi TSA-120 Refractor Telescope

TAKAHASHI SKU: TTK12010-FT

$6,020.00

Shipping calculated at checkout

Backordered: Call for Delivery Estimate

TSA-120 Triplet Refractor


The TSA-120 is a 120 mm apochromatic f/7.5 refractor with a focal length of 900 mm.  It features a retractable lens hood and a 2.7 inch rack and pinion focuser.  The TSA is compatible with several flatteners, reducers and extenders, including the TOA-35 Reducer, which converts the telescope to a f/5.3 imaging platform with a 44 mm image circle.

 

The TSA series is a member of Takahashi's line of triplet refractors.  In the TSA design an ED glass lens is placed between two lenses, with narrow air-spacing between the elements.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.

 

Two focuser options are available:  The stock Takahashi focuser, or you can upgrade to the Feathertouch 3.0 inch focuser kit.

 

Optical Tube Assembly ONLY

(Mount, Tripod, Tube Holder and Finder Sold Separately)

 

TSA-120 System Chart 

 

CHARACTERISTIC

TAKAHASHI TSA-120 REFRACTOR

Optical design

ED Triplet Super Apochromat

Lens cell

Air-Spaced Triplet. 3 Lenses/3 Groups. 1 S-FPL53 ED lens in the center

Coatings

Hard-Multicoatings

Diameter

120 mm

Length of the optical tube

990 mm (870 mm with retracted dew shield)

Diameter of the optical tube

125 mm

Diameter of the dew shield

160 mm

Weight

Weight

Focuser

Rack-and-pinion

 

 

 

AT PRIME FOCUS

Focal length

900 mm

Focal ratio

F/7.5

Metal back distance

227.5 mm

 

 

 

WITH TOA-35FL FIELD CORRECTOR

Focal length

882 mm

Focal ratio

F/7.3

Image circle diameter

40 mm

Metal back distance

117.5 mm

 

 

WITH TOA-35RD FOCAL REDUCER

Focal length

672 mm

Focal ratio

F/5.6

Image circle diameter

40 mm

Metal back distance

62.5 mm

 

 

WITH EXT-ED1.5X FOCAL EXTENDER

Focal length

1350 mm

Focal ratio

F/11.3

Image circle diameter

44 mm

Metal back distance

117.5 mm