ZWO FF130 – High-End Petzval Astrograph

ZWO built the FF130 as a premium apochromatic flatfield Petzval quadruplet for serious astrophotographers. Its fast f/7.7 focal ratio and wide 60mm image circle suit medium format sensors like the ASI461MM Pro. The quadruplet includes two Extra Low Dispersion (ED) glass elements that minimise chromatic aberration. The optics deliver a central RMS spot radius of just 2 microns. You’ll capture pinpoint stars across the entire field.

True Petzval Optics – No Backfocus Hassles

The FF130 uses a true Petzval design, unlike standard ED refractors. You don’t need to set a specific backfocus distance. Just attach your filter wheel, off-axis guider, or any accessory—no spacing calculations required. Focus and go.

Built for Precision Imaging

ZWO designed the FF130 for high-precision deep-sky imaging. The large 60mm image circle and f/7.7 ratio offer excellent performance. The 3.4″ rack and pinion focuser supports the ZWO EAF natively. You won’t need any adapters. It includes a 10:1 reduction gear for fine adjustments. You can rotate it 360° to frame your target perfectly.

ZWO fully multi-coated every lens for maximum light transmission. They flocked the tube interior to block stray light. They machined the tube from solid aluminium and built the focuser from brass. The result? A rock-solid, high-performance astrograph made to last.

Optical design	Apochromatic Quadruplet air-spaced
Objective diameter	130 mm
Focal length	1000 mm
Focal ratio	f/7.7
Resolving Power	1.06 arc seconds
Stellar limiting magnitude	13.27
Max. magnification	325 x
Light gathering power	344.9 times the human eye
Mount attachment	Vixen style dovetail plate (300 mm long)
Focuser	Rack & pinion dual speed (10:1) 3″ diameter
Included connection adapters	M86 x 1, M68 x 1, M54 x 0.75, M48 x 0.75 (with 2″ filter thread)
Backfocus	186 mm from M86 thread, 156 mm from M68 thread, 136 mm from M54 thread, 116 mm from M48 thread
Tube weight	12.5 kg (including tube rings and dovetail bar)
Tube diameter	146mm
Dew shield diameter	162 mm
SKU	ZWO-FF130-APO

What’s in the Box?

ZWO FF130
Pair of tube rings
Losmandy style dovetail bar
Carrying handle
Adapter M86 x 1 to M68 x 1
Adapter M68 x 1 to M54 x 0.75
Adapter M54 x 0.75 to M52 x 0.75
Adapter M52 x 0.75 to M48 x 0.75 with 2″ filter thread
Manual
1-year Warranty

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ZWO FF130 APO Quadruplet f/7.7

SKU: ZWO-FF130-APO

$5,699.00

Available on back-order

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