Takahashi TKA28582: 0.93× FL corrector for FOA-60
0.93× photo converter for use with the FOA-60. An alternative to the 1.7× extension kit.
CHF 265.40
The FOA-60 is designed for visual observation in a compact format: a 60-mm apochromatic fluorite doublet, 530-mm focal length at f/8.8, and a 1.5-kg tube with a retractable dew shield. Tube-only version TFA06010, upgradeable to the Q configuration with the optional extender.
CHF 1'136.43incl. Swiss VAT
Reference TFA06010
The Takahashi FOA-60 is a 60-mm apochromatic refractor designed primarily for visual observation. Its air-spaced doublet places the fluorite lens at the front for precise aberration correction. The native focal length of 530 mm at f/8.8 allows you to assemble a compact visual setup with eyepieces suited to your observations.
The retractable anti-fog screen and 1.5 kg weight make it easy to transport. The tube is specified as 500 mm long and 68 mm in diameter. Focusing is achieved using an FS-60-type rack and pinion. At the native focal plane, the back focus of 175.6 mm corresponds to the markings on the Takahashi connection diagram.
The FL0.93X corrector and the EXQ1.7XR extender are two optional configurations, distinct from the native focal length shown in the table. The first is designed for photographic use with field correction; the second converts the FOA-60 into the FOA-60Q. Select the connectors based on the diagram for the chosen assembly.
Takahashi FOA-60 optical tube (single unit), part number TFA06010. Mount, finder scope, and mounting clamp must be purchased separately. The FL0.93X corrector, EXQ1.7XR extender, and right-angle mirror are optional accessories.
Manufacturer's part number: TFA06010. Takahashi's Official Profile.
The Takahashi FOA-60 is an orthoscopic doublet refractor with a 60 mm aperture and a focal length of 530 mm (f/8.8), designed primarily for deep-sky astrophotography. Its focal length is ideal for medium-sized nebulae (Orion, the Lagoon, the Trifid, and the Rosette), large galaxies such as M33 or the M81-M82 pair, and star clusters. At f/8.8, which is rather slow for deep-sky imaging, it benefits from being used with a focal reducer.
With an APS-C camera featuring 3.76 µm pixels (Sony IMX571 sensor), you get approximately 1.46″ per pixel for a field of view of 2.5° × 1.7°. With the 0.93× crop factor, this increases to 1.57″ per pixel and a field of view of 2.7° × 1.8°.
Yes, whenever you're using an APS-C or full-frame sensor: like any uncorrected doublet lens, it has a slight field curvature that stretches the stars in the corners. Dedicated correctors: Takahashi TKA28582: 0.93× FL corrector for FOA-60 (equivalent focal length of 493 mm, f/8.2).
175.5 mm (metal back); 56 mm with a 0.93× focal length. This focal length is measured from the thread to the sensor, including rings, the filter wheel, and the filter drawer: adhering to this measurement down to the millimeter ensures that stars remain round in the corners.
The tube weighs about 1.5 kg; with the camera, filter wheel, and guide scope, expect it to weigh around 3 kg: a small equatorial or harmonic travel mount is sufficient. A refractor requires no collimation: once balanced, it’s ready to use as soon as it reaches operating temperature. At 50 cm long, it fits easily in the trunk.
Yes, as a bonus: with an angled mirror and an eyepiece, it provides high-contrast, color-accurate images of the Moon, the planets, and double stars, up to about 120×.
Here are a few accessories we've selected for this model, depending on your needs.
0.93× photo converter for use with the FOA-60. An alternative to the 1.7× extension kit.
A 1.7× extension that converts the FOA-60 into the FOA-60Q. An alternative to the 0.93× corrector.
Takahashi 68S-GT collar compatible with the FOA-60 tube. Be sure to use a lower interface that is compatible with the mount and the collar's mounting holes.
1.5× ED Extender for FOA-60: 795 mm at f/13.3 for observation. For a flat photographic field, Takahashi recommends the 1.7×R extender; check the connections and mounting, and do not place a filter at the eyepiece end of the extender.
80 mm heating strip for an 80 mm defogger. Check its location and clearance; a 12 V power supply or controller with an RCA connector and sufficient power must be provided separately.
80 mm motorized flat panel recommended by Wanderer for the FS-60/FOA-60 series. Measure the outer diameter and check the mounting, centering, and clearance.
For a Takahashi EM-11 or EM-200 mount, this S-series base plate is compatible with the 68S-GT symmetrical clamp, sold separately. Check the M8 screws, mounting, load, and balance; this is not a Vixen tail.
Recommended diameter: 150 mm. Check the measurement and the mounting.
