TAKAHASHI FOA-60 ORTHO APOCHROMATIC REFRACTOR

TAKAHASHI SKU: TFA06010

$1,580.00

Shipping calculated at checkout

In Stock: ships now

The FOA-60 from Takahashi is a new compact apochromatic fluorite doublet refractor.   This telescope features a 60mm aperture and a 530 mm focal length. 

 

It is also available with a 1.7X extender, which increases the focal length to 901 mm.   The version with the 1.7X extender is known as the FOA-60Q. 

The spacing of the doublet elements is such that the correction of the spherical abberations is similar to that found in the much larger TOA series.   This innovative design results in a strehl ratio in excess of 96% for the base unit and over 99% with the extender.

 

  • Compact design for relatively long focal length, making it ideal for transport
  • Outstanding visual and photographic performance, providing a 44 mm diameter image circle for full frame imaging
  • Available with a 1.7x extender and a 0.93x flattener

 

Note:   FOA-60 Shown.   Mount, tripod, tube holder and finder not included.

 

Takahashi FOA-60 refractor 


CHARACTERISTIC TAKAHASHI FOA-60 REFRACTOR
Objective Fluorite doublet apochromat
Lens cell Air-spaced doublet. Fluorite in the front
Coatings Hard multicoatings
Diameter 60 mm
AT PRIME FOCUS
Focal length 530 mm
Focal ratio F/8.8
Metal Back Distance 175.6 mm
WITH FL0.93X FIELD CORRECTOR
Focal length 495 mm
Focal ratio F/8.2
Image circle diameter 44 mm
Metal Back Distance 56.2 mm
WITH EXQ1.7XR (FOA-60Q) FOCAL EXTENDER
Focal length 900 mm
Focal ratio F/15
Image circle diameter 44 mm
Metal Back Distance 208.1 mm
 
Takahashi FOA-60 refractor

 

CHARACTERISTIC TAKAHASHI FOA-60 REFRACTOR
Length of the optical tube 500 mm
Diameter of the optical tube 68 mm
Diameter of the dew-shield 80 mm
Weight 1.5 kg
Focuser Rack-and-pinion
   

Spot-diagram of Takahashi FOA-60 at prime focus

Spot-diagram of Takahashi FOA-60 with FL0.93X field corrector

Spot-diagram of Takahashi FOA-60 with EXQ1.7X (FOA-60Q) focal extender



DOCUMENTATION

 

FOA-60 Visual System Chart

FOA-60 Extender System Chart

FOA-60Q System Chart