Cloud Break Optics

FC-35 Reducer for FC-100DFDL, FC-125 and FS-128/152 Telescopes (TKA19580)

FC-35 Reducer for FC-100DFDL, FC-125 and FS-128/152 Telescopes (TKA19580) - Main image
$799.2 $1110 In stock

Category: Astrophotography Accessories

Description

The Takahashi FC-35 reducer is a 0.66X reducer designed to work with the FC-100DF, FC-100DL, FC-125, FS-102, FS-128 and FS-152 telescopes.  This versatile reducer produces a 44 mm diameter image circle and a 0.66X reduction in focal length.  The focal length reduction increases the speed of the optical system for astrophotography.

Specifications

Telescope & Reducer

FC-100DF with FC-35RD FC-100DL with FC-35RD

Reducer Part Number

TKA19580 TKA19580

Aperture

100 mm 100 mm

Resolution

1.16" 1.16"

Limiting Magnitude

11.8 11.8

Light Gathering Power

204X 204X

Focal Length

480 mm 594

Focal Ratio

f/4.8 f/5.9

Image Circle Diameter

44 mm  44 mm

Optical Type

Fluorite Doublet
Apochromat
Fluorite Doublet
Apochromat

Tube Diameter

95 mm 95mm

Tube Length (With Lens hood retracted)

815 mm 940mm

Tube Weight

2.8 kg 3.6 kg

Recommended Finder

7x50 7x50

Metal Back Distance

74.1mm 74.1mm
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Timothy ★★★★★

Finally got clear skies to test this on my FC-100DL, and the 44 mm image circle fully illuminated my APS-C sensor with no vignetting. The threads were butter-smooth to install.

Grace ★★★★★

Swapped this onto my FS-102 last night, and wow — the 44mm image circle at 0.66x really opens up the field without introducing any obvious stars stretching toward the edges. First time I’ve gotten such clean framing on a full-frame sensor.

John J. ★★★★★

Finally got this reducer to pair with my FS-128, and the 0.66x reduction really opens up the field for wide shots without losing sharpness in the corners. The build quality feels solid and threaded on smoothly.