The TOA-150NFB is the second Takahashi Ortho Apochromat to be developed by Takahashi. It features a newly designed triplet objective. This new design, like its smaller companion, the TOA-130, is absolutely color free.

The high contrast and total lack of color makes the TOA-150 not only an outstanding optical instrument, but it can be used to make outstanding images with a CCD, digital SLR or film camera. Framing the image or placing the ocular in a convenient position is made simple because of the built-in camera angle adjuster that allows the 360° rotation of the camera or ocular without loss of focus.

The new heavy duty focuser is designed to handle the new breed of heavy cameras and filter wheels. It uses a long stroke linear bearing designed to keep and hold a heavy instrument package. Like the FSQ-106ED it uses a trigger lock focus lock and new pinion assembly. The CAA and all standard adapters are still included as always. 

NOTE: Outside Diameter of the dew shield is 207mm.

SPECIFICATIONS for the TOA-150B (Tube assembly only)

Objective:     150mm triplet Ortho Apochromat
Focal Ratio     f/7.33
Effective Focal Length     1100mm
Tube Diameter     Ø179mm
Focuser     4° w/Camera Angle Adjuster and 10:1 Micro Edge Focuser

Effective Focal Length
[W/35 Flattener*]     1080mm
Effective F-Ratio     F/7.2
Image circle     Ø40mm

Effective Focal Length
[W/67 Flattener*]     1090mm
Effective F-Ratio     F/7.3
Image circle     Ø90mm

Effective Focal Length
[W/TOA Reducer *]     860mm
Effective F-Ratio     F/5.7
Image circle     Ø50mm

Effective Focal Length
[w/ Super Reducer     825mm
Effective F-Ratio     F/5.5
Image circle     Ø70mm