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Holiday Schedule: The showroom will be closed from Dec 22nd to Jan 2nd. Support will not be available in that period. Happy Holidays!
Holiday Schedule: The showroom will be closed from Dec 22nd to Jan 2nd. Support will not be available in that period. Happy Holidays!
ZWO FF65-APO Refractor F/6.4

ZWO FF65-APO Refractor F/6.4

by ZWO
SKU ZWO-FF65-APO
$799.00 USD - $799.00 USD
$799.00 USD
$799.00 USD - $799.00 USD
$799.00 USD
  • Quintuplet air-spaced APO
  • F/6.4
  • 416mm focal length
  • 65mm aperture
  • 44mm image circle
Availability:
Backordered
Contact us to know when we will receive our next ones!

More information

  • Description
  • Specifications
  • In the Box
  • Downloads
  • Diagrams

  • ZWO FF65-APO - Overview

    The ZWO FF65 APO is a refractive astrograph with the powerful flatfield optical design which saves you from the expensive cost of a field flattener. It eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance.

    You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging. This makes the whole setting up process much more convenient, and saves your time, allowing you to pay more attention to the image shooting itself.

    The FF65 APO supports the full-frame imaging circle and has a fine spot diagram with tiny distortions of the peripheral stars. The 2.5" rigid focuser comes with a new-type 360° rotator with scales and a finder base. M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2" female thread for installing filters.

    Quadruplet Air-Spaced APO

    The FF65 APO is a quintuplet with two ED glasses which offers excellent control of chromatic and other aberrations.

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    44mm Image Circle

    The FF65 APO supports full frame cameras, such as ASI6200, which gives you a larger field of view.

    The stars are small and round with a central RMS radius of 2.5 microns.

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    Self-flattening Design

    There is no need for a separate field flattener.

    The FF65 APO eliminates the trouble of calculating the back focus distance of the flattener and connecting various accessories to achieve that distance.

    You can just connect any possible accessories you need. As long as the target is focused, the whole optical system is perfect for imaging.

    Various Adapters

    The FF65 APO comes with M68/M54/M48 adapters.

    The M48 adapter has a 2" female thread for installing filters.

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    High-Precision Dual-Speed Focuser

    The telescope is equipped with a smooth, dual-speed (1:10) focuser that allows for fine adjustments, ensuring precise focus during both visual observation and astrophotography.

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    44mm Image Circle

    The FF65 APO supports full frame cameras, such as ASI6200, which gives you a larger field of view.

    The stars are small and round with a central RMS radius of 2.5 microns.

    Supports full frame cameras.

    Performance Demonstration

    You can click on the images to view the full size.

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  • ZWO FF65-APO Specifications

    Product model

    FF65-APO

    Net Weight

    2kg

    Aperture Size

    65mm

    Focal Length

    416 mm

    Focal ratio

    f/6.4

    Image Circle

    44mm

    Observing Mode

    121mm

    Optical lens

    Quintuplet air-spaced APO (including two ED glass)

    Imaging Mode

    76mm (from the base of M48x0.75 male thread)
    105mm (from the base of M54x0.75 male thread)
    130mm (from the base of M68x1 male thread)

    Rear-end thread type

    M68x1-M54x0.75
    M54x0.75-M54x0.75
    M54x0.75-M48x0.75
    (M48x0.75 filter thread inside)

    Total Length

    328mm (including 1.25" eyepiece holder as dew shield contracted)
    360mm (including the 3-piece adapter as dew shield extended)
    388mm (including the 1.25" eyepiece holder as dew shield fully stretched)
    420mm (including the 3-piece adapter as dew shield fully stretched)

    Rear-end of the 3-piece photographic adapters

    M48x0.75

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      ZWO FF65-APO and Vixen Dovetail Plate

      × 1

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      M68 Adapter

      × 1

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      M54 Adapter

      × 1

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      M48 Adapter

      × 1

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      Manual

      × 1

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