At checkout, select Afterpay as the payment method
No new cards, you can use your existing bank card
Complete your checkout
No long forms, online approval
Pay over four installments
Pay every 2 weeks, enjoy your purchase right away
All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of New Zealand or Australia
Late fees and additional eligibility criteria apply. The first payment may be due at the time of purchase. For complete terms visithttps://www.afterpay.com/terms
We don't have this item in our store right now, please allow for it to be transferred to our retail store.
If you come to pick up your order please bring photo ID, if someone else is picking it up on
your behalf please contact us prior to pickup.
Delivery estimates
Once your order has been picked up by the courier please allow 2 working days for North
Island addresses, for the South Island allow 3 working days. Rural deliveries and
extra-large items may take several additional days.
Shipping costs
Shipping costs are automatically calculated during checkout. The price of shipping varies based on the
delivery location. Select items may be be eligible for free shipping.
Delivery of oversize items
Oversize items such as very large telescopes may only be available via pickup from a depot or delivered to a
business address. For more infomation
click here. Due to
less frequent collection of oversize items delivery may take 2 to 4 additional days.
Security
To ensure the safe delivery of your order we require a signature with all parcels. Some exceptions may be made
if you give the courier company authority to leave parcels at your preferred address.
About this product
Capture expansive starscapes with uncompromising sharpness using the Sky-Watcher 80/400 Tetra 80ED Quadruplet Apo OTA. Built with an internal four-element optical system utilising premium HOYA ED glass, it provides pinpoint stars straight across a full-frame sensor without ever needing an external flattener. With a fast f/5 focal ratio and a thermally stable carbon fibre tube, it delivers a pristine imaging and observing experience directly out of the box.
Quadruplet Optics
Built-in field correction
Full-Frame Ready
44mm illuminated circle
Carbon Fibre Tube
Thermal focus stability
Dual-Speed Focuser
1:10 micro-adjustment
Flawless True Colour and Flat Fields
The optical assembly features an advanced four-element layout combining two separate HOYA glass elements: one FCD100 and one FCD1. This pairing tames false colour, chromatic aberration, and edge distortion within the objective itself. Because the field flattener is integrated into the design, there is no need to calculate complex backfocus distances or thread auxiliary correctors into the train.
Fast Astrograph Performance
At 80mm aperture and a 400mm focal length, this refractor operates at a rapid f/5 focal ratio. The fast light gathering shortens individual exposure lengths on faint nebulae, while the modest focal length remains exceptionally forgiving on tracking and autoguiding systems. A generous 44mm image circle ensures complete illumination and edge-to-edge definition across modern camera sensors.
Lightweight Construction with Direct Visual Versatility
Crafted with a rigid carbon fibre optical body and lens hood, the refractor resists focus shift when ambient night temperatures drop rapidly. The entire assembly weighs just 4.1kg (9.1lbs) with the camera adapter attached, keeping your mount payload manageable. While purpose-built for high-resolution imaging, it includes high-grade visual accessories for immersive wide-field stargazing right from the start.
Native Sensor Correction The integrated quadruplet layout projects a flat, colour-corrected 44mm image circle without requiring extra spacing adapters or external flattener lenses.
Key Features
HOYA Double-ED Glass – Incorporates FCD100 and FCD1 elements to eliminate colour fringing around brilliant stars.
Quadruplet Optical Formula – Flat field optical design requires no external correctors, simplifying your imaging train.
Fast f/5 Focal Ratio – Collects light rapidly to shorten sub-exposures on expansive deep-sky targets.
Carbon Fibre Tube & Hood – Minimises thermal expansion to maintain crisp focus during ambient night cooling.