FOA-60 Ortho Apochromatic Refractor
Category: Refractor Telescope
Description
The FOA-60 is a new compact apochromatic fluorite doublet refractor from Takahashi. The telescope features a 60 mm 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.
Specifications
|
Telescope |
FOA-60 | FOA-60Q |
|
Part Number |
TFA06010 | TFA06100 |
|
Aperture |
60mm |
60mm |
|
Resolution |
1.93" | 1.93" |
|
Limiting Magnitude |
10.7 | 10.7 |
|
Light Gathering Power |
73x | 73x |
|
Focal Length |
530mm | 901mm |
|
Focal Ratio |
f/8.3 | f/15 |
|
Image Circle Diameter |
44mm | 44mm |
|
Optical Type |
Fluorite Doublet Ortho Apochromat |
Fluorite Doublet Ortho Apochromat |
|
Tube Diameter |
68mm | 68mm |
|
Tube Length (With Lens hood retracted) |
--------- | -------- |
|
Tube Weight |
--------- | -------- |
|
Recommended Finder |
6x30 | 6x30 |
|
Metal Back Distance |
--------- | -------- |
FOA-60 Visual System Chart
FOA-60 Extender System Chart
FOA-60Q System Chart
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
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