ZWO FF130 APO Refractor Telescope User Manual

ZWO FF130 APO Refractor Telescope

Instructions for use

The FF130 APO is a long-focal-ratio refractive astrograph with a 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. This makes the whole setting up process much more convenient, and saves you time, allowing you to pay more attention to the image shooting itself. It will also be an ideal telescope if you want to do visual astronomy. Directly connect the star diagonal to the eyepieces, you’ll see focusing is such an easy thing then. Planetary observation in high magnification is also a piece of cake!

FF130 APO has a larger size than FF107 APO, with an aperture 23mm larger than FF107 APO. FF130 APO has a focal ratio of f/7.7 which is bigger than FF107 APO’s f/7, and a focal length of 1000mm. The quadruplet lens with two ED glasses offers excellent control of chromatic and other aberrations. With its self-flattening design, FF130 APO offers strong advantages in astronomical shooting. It supports a medium frame 60mm image circle, has a fine spot diagram with tiny distortion of the peripheral stars, and its central RMS radius is less than 2 microns.

FF130 APO comes with a telescopic lens hood, a high-quality CNC machined and painted tube and attractive decorative parts. The 3.4″ rigid focuser comes with M68, M54, and M48 camera adapters and a finder base. When used with the 3″ 0.7 x flat field reducer, the telescope can reach a focal ratio of f/5.4 and a focal length of 700mm, effectively reducing exposure time. The multifunctional handle comes with a central slot for attaching an M6 screw with an M6 screw hole. Standard Losmandy dovetail plate, together with a sturdy double tube ring, is perfectly suited for viewing and shooting.

Specification

• Aperture size: 130mm
• Focal length: 1000mm
• Focal ratio: f/7.7
• Objective lens: Quadruplet air-spaced APO (including two ED glasses)
• Image circle: 60mm
• Maximum accessory connection (with the focuser fully retreated):

1.  **Imaging mode:**
  * 96mm (from the base of M48X0.75 male thread)
  * 116mm (from the base of M54 X0.75 male thread)
  * 136mm (from the base of M68 X 1 male thread)
  * 166mm (from the base of M86 X 1 male thread)
2.  **Observing mode:**  

148.5mm (from the end of the 2″ eyepiece holder)

• Total length:
  • 842.5mm(with the 1.25″ visual adapter fully retreated)
  • 1011.5mm(with the 1.25″ visual adapter fully stretched)
  • 889.5mm(plus the photographic adapter fully retreated)
  • 1061.5mm ( plus the photographic adapter fully stretched)
• Net weight: 10.5kg
• Gross weight: 12.5kg
• Rear-end thread type:
  • M86 X 1-M68 X 1
  • M68 X 1-M54 X 0.75
  • M54 X 0.75-M54 X 0.75
  • M54 X 0.75-M48 X 0.75 (M48X0.75 filter thread inside)
• Standard package items: an FF130 APO OTA, a pair of tube rings, a handle, a losmandy dovetail plate, a set of 4-piece photographic adapters, an aluminium box, and a manual.

Product Size Diagram

• 842.5mm(with the 1.25″ visual adapter fully retreated)
• 889.5mm (plus the photographic adapter fully retreated)
• 1011.5mm(with the 1.25″ visual adapter fully stretched)
• 1061.5mm plus the photographic adapter fully stretched)

Connection Diagram of Camera

4-piece Photographic Adapter Diagram

Product Parts Diagram

The Locking Screw Position Diagram

• 2. Bottom locking screw
• 4. Bottom load adjustment screw hole (contains M4 small screws)
• 1, 2, and 5 can be used for electric focusing bracket installation

Items in FF130 APO Packaging

an FF130 APO OTA, a pair of tube rings, a handle, a losmandy dovetail plate, a set of 4-piece photographic adapters, an aluminium box, and a manual. www.zwoastro.com.

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