Tecnosky Apochromatic refractor AP 70/350 Quadruplet V2 OTA (71075)

The Tecnosky AP 70/350 Quadruplet V2 is a compact apochromatic refractor telescope designed for advanced users and dedicated astrophotographers. Featuring a quadruplet lens design, this optical tube assembly delivers exceptional color correction and sharpness, making it ideal for wide-field imaging. Its lightweight and portable aluminum construction, combined with a precision focuser and multiple connection options, make it a versatile choice for those seeking high performance in a travel-friendly package. This telescope is not recommended for beginners but excels in advanced astrophotography applications.

Optical Specifications

• Type: Refractor (Apochromat)

• Lens Design: Quadruplet

• Aperture: 70 mm

• Focal Length: 350 mm

• Aperture Ratio: f/5

• Resolving Capacity: 1.97 arcseconds

• Limiting Magnitude: 12.3

• Light Gathering Capacity: 100 times the human eye

• Maximum Useful Magnification: 140x

• Tube Material: Aluminum

• Tube Weight: 3.9 kg

• Tube Diameter: 77 mm

• Stray Light Baffles: Yes

• Tube Construction: Full tube

• Optical Coating: Fully Multi-Coated (FMC)

Focuser

• Type: Gear rack

• Fine Focusing: 1:10 gear reduction

• Rotating Focuser: Yes

• Camera-Side Thread: M48x0.75

• Backfocus: 66 mm

• Ring Clamp: Yes

• Load Capacity: 3 kg

Mount

• Mounting Type: None (OTA only)

• GoTo Control: No

Included Accessories

• Eyepiece Adapter: 1.25" & 2"

• Prism Rail: Vixen-Style

• Tube Clamps: Yes

• Dew Shield: Yes

• Transport Case: Not included

• Deviating Optics: Not included

• Finder Scope: Not included

• Carrying Handle: Yes

• Finder Base: Vixen/Skywatcher Level

Area of Application

• Astrophotography: Yes (very good)

Recommended For

• Beginners: Not recommended

• Advanced Users: Yes

• Observatories: No

This telescope is an excellent choice for experienced astronomers looking for a portable, high-quality instrument for wide-field astrophotography and advanced imaging projects.