Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor
1,109.00
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Delivery times depending on the shipping method: Switzerland: 2 to 3 days; Europe: 7 to 10 days.
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Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor
70mm f/5 Petzval quadruplet refractor with Lanthanum and FPL-53 elements, 45mm flat field, 2.5" rotatable focuser. Designed for full-frame imaging without additional field flattener.
Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor
Overview
The Tecnosky AG70 V2 is a 70mm f/5 apochromatic quadruplet refractor featuring a Petzval design with Lanthanum and FPL-53 glass elements. This configuration delivers a 45mm flat field, making it suitable for full-frame sensors without the need for an additional field flattener.
The aluminum tube includes internal baffles to suppress stray light. The 2.5" rack-and-pinion focuser, made of magnesium alloy, supports loads up to 3 kg and features a 1:10 micro-reduction and a rotatable M48x0.75 thread, allowing the use of 2" filters.
Technical specifications
Optical design: Petzval apochromatic quadruplet
Aperture: 70 mm
Focal length: 350 mm
F-ratio: f/5
Glass elements: Lanthanum and FPL-53
Flat field: 45 mm (full-frame compatible)
Optical coating: Fully Multi-Coated (FMC)
Focuser: 2.5" rack-and-pinion in magnesium alloy, 1:10 micro-reduction, rotatable M48x0.75 thread
Load capacity: up to 3 kg
Weight: 3.94 kg (including rings and dovetail)
Included accessories:
CNC mounting rings
Vixen-style dovetail bar
Carrying handle
Optical performance
Astrophotography: 45mm flat field suitable for full-frame sensors without additional field flattener.
Recommended use: Wide-field imaging, extended nebulae, dense star fields.
Compatibility: Full-frame DSLR cameras, CCD/CMOS cameras with sensors up to 45mm diagonal.
Mount compatibility
With a weight under 4 kg, the Tecnosky AG70 V2 is compatible with light to medium mounts:
iOptron: SkyGuider Pro, CEM25, CEM40, GEM45, HAE29, HEM27
Key features
Petzval quadruplet design with Lanthanum and FPL-53 glass
45mm flat field, ideal for full-frame sensors
Robust 2.5" focuser with integrated field rotator
Compact and lightweight tube for easy transport
No need for additional field flattener
Réfracteur APO AG70 F/5 V2
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Tecnosky AG70 F/5 V2 Apochromatic Quadruplet Refractor
70mm f/5 Petzval quadruplet refractor with Lanthanum and FPL-53 elements, 45mm flat field, 2.5" rotatable focuser. Designed for full-frame imaging without additional field flattener.