Stock photos provided by the manufacturers may not represent the actual item. Please verify this picture accurately reflects the product described by the title and description before you place your order.

Takahashi TSA-120 120mm APO Refractor

Price: $4,430.00

  • Manufacturer: Takahashi
  • MPN: TTK12010
  • SKU: TTK12010
  • Availability: Ships from Warehouse

*Is ONLY to the LOWER 48.
Not Alaska/Hawaii/ PR/Guam/Thailand, etc






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 air spacing in between.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging. 




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.

Optical Tube Assembly only (mount, tripod, tube holder and finder sold separately). 


  • 120 mm
  • 900 mm, 882 mm with TOA-35 Flattener, 672 mm with TOA-35 Reducer
  • f/7.5, f/7.3 with TOA-35 Flattener, f/5.6 with TOA-35 Reducer
  • 40 mm with TOA-35 Flattener or Reducer
  • 2.6° with TOA-35 Flattener, 3.4° with TOA-35 Reducer
  • 230 mm, 117.5 mm with TOA-35 Flattener, 83.7 mm with TOA-35 Reducer
  • 713 mm
  • 125 mm
  • 5.7 kgs


  • Code TSA0120
  • SKU TTK12010
  • Weight 22679
  • Size X 101
  • Size Y 40
  • Size Z 33


Customers Reviews

Share your opinion with other customers

Write a review