APO 130/1000 FF130 Refractor Telescope

ZWO FF130 Flatfield APO Astrograph

This Apochromatic Flatfield With a focal length of 1000 mm, it supports a 60 mm image circle (full frame) and requires no backfocus calculations. When the image is in focus, the image field is flat.

ZWO's largest refractor consists of a triple lens with two ED lenses and a unique element. With this Petzval-like lens design, excellent color correction and sharpness are achieved. With its self-adjusting design, the FF130 offers significant advantages for astrophotography. It offers more than the full-frame image field and it has a fine dot diagram with only small distortions of the peripheral stars.
Instead of buying an additional flattener, calculating the flattener's backfocus, or making a laborious connection to adjust the correct distance, astrophotographers can easily equip this apochromatic lens with all possible photographic accessories, and then the entire optical system will be perfectly tuned for imaging. The image no longer needs any external correction or field flattening using a flattener or corrector!

He FF130 It comes with a removable dew shield, a high-quality CNC-machined tube, and decorative parts. The OTA weighs 10.5 kg; the complete package with clamps and Losmandy rail It weighs 12.5 kg. The stable 3.4" focuser comes with a 360° rotator and a finder shoe. Adapters for M86, M68, M54, and M48 cameras are also included. The M48 adapter has an internal thread for installing 2" filters.

He backfocus with the corresponding adapters:

• 116 mm from the M48x0.75 external thread
• 136 mm from the M54x0.75 external thread
• 156 mm from the M68x1 external thread
• 186 mm from the M86x1 external thread

Specs:

Optical system: Apochromatic refractor (Triplet)
Aperture: 130 mm
Focal length: 1000 mm
Focal ratio: f/7.7
Optical treatment: FMC (Fully Multi Coated)
Corrected field: 60 mm
Resolution: 1.06″
Limiting magnitude: 12.3
Maximum useful magnification: 260×

Optical Tube (OTA):
Aluminum, with internal anti-glare deflectors and anti-dew sunshade
Tube length: 1061.5 mm
Transport length: 842.5mm
Tube diameter: 146 mm
Weight: 10.5 kg

Focuser:
Rack and pinion with 1:10 microfocus, rotary
Eyepiece connection 1.25" and 2"
Camera threads M48x0.75 and T2
Backfocus: 116–186 mm (depending on adapter)

Mount: Not included (OTA)

Included accessories:
Losmandy-type dovetail plate
Clamps, carrying handle, 1.25"/2" eyepiece adapter, integrated field corrector

Applications:
Astrophotography (excellent)
Moon, planets, nebulae and galaxies
Solar observation (only with appropriate solar filter)

Recommended user:
Advanced astronomers