FSQ-85EDX f/5.3 Petzval Refracting Telescope - With Flattener
Takahashi
From $3,440.00
4 stores
The FSQ-85EDX is the smallest member of the FSQ Series of flat field astrographs, designed from the ground up for digital imaging. This telescope features a modified four-element double ED Petzval optical system that effectively eliminates astigmatism and acts as a field flattener, delivering wide flat fields with high contrast and no lateral color aberration. Weighing less than 9 pounds and measuring 12.68 inches when collapsed, this telescope fits under an airline seat or overhead compartment for ultimate portability. The included 1.01x flattener expands the corrected image circle from 28mm to 44mm diameter, ensuring full coverage for any full-frame sensor.
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OPT
FSQ-85EDX f/5.3 Petzval Refracting Telescope - With Flattener
Worldwide shipping
$4,280.00
Specifications
| Weight | 7.9 lb |
| Focuser Microfocuser Ratio | 1:7 |
| Optical design | Modified Four-Element Double ED Petzval Quadruplet |
| Tube Diameter | 95 mm |
| Warranty | 5 |
| Focal ratio | f/5.3 |
| Back Focus With Flattener | 56.2 mm |
| Included Flattener | 1.01x |
| Dew Shield Outer Diameter | 114 mm |
| Focal length | 450 mm |
| Field Flattening With 1.01x Flattener | 22 mm |
| Back Focus | 197.5 mm |
| Tube Length Retracted | 525 mm |
| Aperture | 85 mm |
| Focuser Type | 78mm Heavy-Duty Rack-and-Pinion |
| Field of View | 5.6° |
| Image Circle | 44 mm |
| Tube Length Extended | 615 mm |
| Field Flattening Without Flattener | 14 mm |
| Country of Manufacture | Japan |