Land Sea & Sky

  • FREE STANDARD SHIPPING ON ALL ORDERS
  • 90 DAY RETURN POLICY
  • DON'T SEE WHAT YOU NEED? CALL US!
  • |
  • |
  • Register

TAKAHASHI TOA-150B REFRACTOR

$12,970.00
Article number: TOK1501
Availability: Order Today
Delivery time: Special Order: please call 713-529-3551 for estimated delivery
... updating the shopping cart ...
Add to wishlist
  • FREE STANDARD SHIPPING ON ALL ORDERS
  • 90 DAY RETURN POLICY
  • DON'T SEE WHAT YOU NEED? CALL US!

The TOA series is a member of Takahashi’s line of triplet refractors.  In the TOA design, three lens elements are used, with the front and rear constructed from ED glass.  The resulting system achieves a high level of apochromatic performance for both visual observation and imaging.  Takahashi engineers have a undertaken a complete redesign of the triplet system, completely eliminating spherical aberration while minimizing axial chromatic aberration in the visible light spectrum.

 

In typical apochromatic designs, the elimination of chromatic aberration is usually at the expense of increasing spherical aberration at various wavelengths.  However, with the TOA series, the focal shift across the entire visible spectrum from 436 nm up to 656 nm is less than +/- 0.01 mm.  This is less than 1/100 the aberration of a typical apochromatic design.

 

TOA-150B

 

The TOA-150B is a 150 mm apochromatic f/7.3 refractor with a focal length of 1100 mm.  It features a retractable lens hood, a 4 inch rack and pinion focuser with a 7:1 fine focuser, and a 360 degree camera angle adjuster.  A complete line of flatteners, reducers and extenders are available, including the 67-series flattener, which provides a 90 mm imaging circle. 

 

A tube weight is standard to assist in balancing instrumentation or visual accessories.

 

Optical tube only.  Mount and tripod sold separately.

 

TOA150B Visual System Chart

TOA150B Reducer System Chart

TOA150B Extender System Chart

TOA150B TOA 35 Flattener System Chart

TOA150B 67 Flattener System Chart 

 

  • 150 mm
  • 1100 mm, 1090 with 67 flattener, 770 mm with TOA-35 reducer
  • f/7.33, f/7.2 with flattener, f/5.1 with reducer
  • 90 mm with flattener, 70 mm with reducer
  • 0
  • 214 mm, 106.2 mm with reducer
  • 965 mm with lens shade retracted
  • 179 mm
  • 33.5 lbs
  • Code TOK1501
  • SKU TOK15110
  • Weight 40370
  • Size X 124
  • Size Y 38
  • Size Z 50
No reviews found...
Related products
Our brands

Sign up for our newsletter

© Copyright 2017 Land Sea & Sky - Powered by Lightspeed - Theme by totalli t|m e-commerce