Vixen Apochromatic refractor AP 90/495 VSD90SS OTA (81939)

The Vixen VSD90SS is a high-performance astrograph designed for both visual observation and astrophotography. With its fast focal ratio and advanced optical design, it delivers exceptional image quality. The optical system includes two SD lenses and one ED lens, resulting in images that are nearly free of aberrations. This telescope produces sharp, beautiful star images with uniform quality right to the edges, even when used with full-frame DSLR cameras or larger 44mm x 33mm format cameras. The VSD90SS is suitable for high-magnification planetary viewing as well as wide-field deep-sky imaging.

Specifications

Optics:

• Type: Refractor

• Optical Design: Apochromat

• Aperture: 90 mm

• Focal Length: 495 mm

• Aperture Ratio: f/5.5

• Resolving Capacity: 1.53 arcseconds

• Limiting Magnitude: 11.6

• Light Gathering Power: 170

• Maximum Useful Magnification: 180x

• Lens Design: Quintuplet

• Tube Weight: 4.3 kg

• Tube Diameter: 115 mm

• Tube Length: 600 mm

• Carrying Length: 476 mm

• Fully Corrected Field: 60 mm

Focuser:

• Type: Rack and pinion

• Eyepiece Connection: 1.25 inch

• Camera Thread: T2

• Rotating: No

Mount:

• Type: OTA (Optical Tube Assembly)

• Mount Included: No

Included Accessories:

• Finder Scope: Not included

• Dew Shield: Included

• Corrector: Integrated

• Prism Rail: Not included

• Transport Case: Not included

• Finder Base: Vixen/Skywatcher Level

• Tube Clamps: Not included

• Test Protocol: Included

Areas of Application:

• Astrophotography: Yes (very good)

• Moon and Planets: Yes

• Nature Observation: Yes

• Nebulae and Galaxies: Yes

• Sun: No (only with appropriate solar filter)

Recommended For:

• Beginners: No

• Advanced Users: Yes

• Observatories: No