Specifications
Brand
Technical specs
Design and durability
Specifications:
- Product Name: FF131 APO
- Effective Aperture: 131mm
- Focal Length: 983mm
- Focal Ratio: f/7.5
- Objective Type: Four-element air-spaced APO (includes 1 ED element)
- Image Circle: 44mm
- Maximum Rear Connection Length (Focuser Retracted)
Imaging Mode: 73mm (measured from M48x0.75 male thread); 91mm (measured from M54x0.75 male thread)
Observation Mode: 131mm (measured from 1.25” eyepiece holder); 142mm (measured from 2” eyepiece holder)
- Minimum Rear Connection Length (Focuser Retracted)
Imaging Mode: 42mm (measured from M48x0.75 male thread); 60mm (measured from M54x0.75 male thread)
Observation Mode: 100mm (measured from 1.25” eyepiece holder); 111mm (measured from 2” eyepiece holder)
- Overall Length: 878mm (with 1.25” interface retracted); 941mm (with photography extension tube retracted); 963mm (with 1.25” interface extended); 1026mm (with photography extension tube extended)
- Telescope Body Weight: 7.9kg
- Standard Configuration Weight: 9.4kg (including handle, mounting rings, and dovetail plate)
- Rear Interfaces:
M78x1- 55mm Extension Adapter
M78x1 - M54x0.75
M54x0.75 - M54x0.75
M54x0.75 - M48x0.75 (built-in M48x0.75 filter thread)
Package Included:
- 1 x Set of FF131 APO
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