Q-1.6X Extender for FS-60CB, FC-76D and FC-100D Telescopes (TKA00595)

Name: Q-1.6X Extender for FS-60CB, FC-76D and FC-100D Telescopes (TKA00595)
Brand: Takahashi
SKU: TKA00595
Price: 323.61 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Q-1.6X Extender for FS-60CB, FC-76D and FC-100D Telescopes (TKA00595) - Main image

$323.61 ~~$483~~ In stock

Category: Astrophotography Accessories

Description

The Takahashi Extender-Q 1.6X is designed to work with the FS and FC series of Takahashi telescopes. It extends the focal length of these telescopes by 1.6X.

Specifications

Telescope with Adapter	Q-1.6X EX with FS-60CB	Q-1.6X EX with FC-76DCU/DS	Q-1.6X EX with FC-100DC/DF	Q-1.6X EX with FC-100DL
Adapter Part Number	TKA00595	TKA00595	TKA00595	TKA00595
Aperture	60mm	76mm	100mm	100m
Resolution	1.93"	1.5"	1.16"	1.16"
Limiting Magnitude	10.7	11.2	11.8	11.8
Light Gathering Power	73X	120X	204X	204X
Focal Length	568mm	916mm	1185mm	1440mm
Focal Ratio	f/9.4	f/12.0	f/11.9	f/14.4
Image Circle Diameter	---	---	---	---
Optical Type	Fluorite Doublet Apochromat	Fluorite Doublet Apochromat	Fluorite Doublet Apochromat	Fluorite Doublet Apochromat
Tube Diameter	80mm	DCU: 80 mm DS: 95 mm	95mm	95mm
Tube Length (With Lens hood retracted)	440mm	DCU: 656 mm DS: 660 mm (567 mm)	815mm	940mm
Tube Weight	1.4kg	DCU: 1.9 kg DS: 3.0 kg	2.8kg	3.6kg
Recommended Finder	6x30	6x30	7x50	7x50
Metal Back Distance	157.0mm	157.0mm	157.0mm	157.0mm

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Customer Reviews (4.8 / 5 · 5 reviews)

Zoe U. ★★★★★ Oct 17, 2026

Finally got a clear night to test this extender on my FC-100D, and the moon looked crisp with no false color at the edges. The 1.6X boost really brings out fine crater details without losing too much brightness.

Ruby T. ★★★★★ Oct 12, 2026

The 1.6X boost turned my 76 into a surprisingly capable lunar scope, and star tests still look clean with no visible false color creeping in. Spacing was tight on the first try, but once I got the back focus right it's been staying in the diagonal full time.

Ella R. ★★★★★ Oct 10, 2026

Picked this up to get more reach out of my FC-100D without buying a whole new scope. The 1.6X magnification boost threads on solidly with no tilt that I can see, and stars stay sharp across the frame. Exactly the extra focal length I hoped for.