• Evolux 82ED Focal Reducer on a white background

Sky-Watcher 0.9× Reducer / Field Flattener for Evolux-82ED

6970456093373

SkyWatcher

1 in stock
£249.00
£249.00
Tax included. Shipping calculated at checkout.

Order before 3pm for next day delivery

Sky-Watcher 0.9× Reducer / Field Flattener for Evolux-82ED — 20112

The Sky-Watcher 0.9× Reducer / Field Flattener is a dedicated optical corrector designed for the Evolux-82ED refractor. Using a high-quality two-element design with one ED element, it both reduces focal length and flattens the image field, delivering crisp star images across the entire frame — ideal for serious wide-field astrophotography.

Faster focal ratio, wider framing

When installed, this reducer shortens the Evolux-82ED’s focal length by 0.9×, transforming it into a faster, more capable imaging system:

  • Focal length: 477mm

  • Focal ratio: f/5.8

  • Field of view: approx. 4.34°

The faster optics allow shorter exposures while capturing more of the sky in a single frame — perfect for nebulae, large galaxies, Milky Way frames and star clusters.

Edge-to-edge sharpness

The integrated field flattener provides excellent field-edge correction, illuminating a full-frame sensor and maintaining pinpoint stars across a 36mm image circle. This is especially beneficial for DSLR and full-frame astro cameras.

Quality optics & robust build

  • Two-element design with ED glass

  • Fully multi-coated for high transmission and reduced reflections

  • Precision-machined body for secure, accurate spacing

Imaging-friendly connections

Supplied with an adapter / field rotator, the reducer is easy to integrate into a wide range of setups:

  • Back focus: 55mm

  • Threads: M56×1 (female) / M48 (male)

  • Internal thread supports 2" filters

  • Compatible with Sky-Watcher M48 Canon and Nikon T-ring adapters

The Sky-Watcher 0.9× Reducer / Field Flattener for Evolux-82ED (20112) is an excellent upgrade for optimising image quality, delivering wider fields, flatter frames and beautifully sharp results across today’s larger camera sensors.

Shipping Options

Fast & Reliable UK Delivery

We offer flexible delivery options across the UK, with free shipping available on qualifying orders.

  • FREE Next Working Day Delivery (Mon–Fri)
    On all orders £300 and over
  • FREE Express Delivery (1–3 Working Days)
    On orders £49.99 – £299.99
  • Express Delivery – £3.99
    On orders under £49.99
  • Standard Delivery (2–4 Working Days) – £2.99
    A great value option for smaller orders
  • Priority Shipping – £8.99
    A fully tracked, guaranteed delivery service, including Saturday delivery options

Order Fulfilment

Some items, as clearly stated on the product page, may be fulfilled directly by our partners or manufacturers. In these cases, your order will be shipped to you straight from the brand’s warehouse. This helps us provide a wider range of specialist equipment and may result in slightly different delivery times.

Returns Policy

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.
Sky-Watcher 0.9× Reducer / Field Flattener for Evolux-82ED

£249.00

Does it come with a warranty?

All our products are UK stock so come with manufacturers warranty

What happens if I don't like it?

We always want you to be happy with your purchase — so if you’re unsure, please ask us first. We’re always happy to give honest advice before you buy.

If the product arrives and you simply decide it isn’t for you, you can usually return it within the cooling-off period — as long as it’s unused, in perfect condition, and returned with all original packaging and accessories.

Because telescopes and optical equipment are large, delicate and expensive to ship, you’ll need to cover the cost of sending it back, and if we originally subsidised delivery, we may deduct our outbound shipping costs from your refund.

We’re a small specialist business, and unnecessary returns genuinely hurt us — so if you’re unsure at all, please talk to us first. We’d rather help you choose the right item than process a return.

How fast is shipping?

We aim to ship in-stock items as quickly as possible.

  • Most in-stock orders dispatch within 1–2 working days
  • Delivery usually takes 1–3 working days after dispatch (UK mainland)
  • Heavier / oversized items and special orders may take a little longer

You’ll receive tracking details as soon as your order is on its way.

Astronomy equipment often requires specialist packing and trusted couriers — we do this to keep your gear safe, not to slow things down. If you need something urgently, just ask and we’ll do our best.

What's the returns policy?

If something isn’t right, we’ll always try to help.

  • Unused items in “as new” condition can usually be returned within the statutory cooling-off period
  • Please contact us before sending anything back so we can advise on the safest way
  • For unwanted items, return shipping is your responsibility, and original shipping may be deducted where applicable
  • If a product is faulty or damaged, we’ll arrange repair, replacement or refund in line with your consumer rights — and we’ll cover reasonable return costs

Telescope shipping is expensive, and specialist — avoidable returns really do impact our business, so we always encourage customers to ask questions before buying. We’re here to help you get it right first time.

Your statutory rights are not affected.

What are your opening hours?

Monday: 9.00am - 5.00pm
Tuesday: 9.00am - 5.00pm
Wednesday: 9.00am - 5.00pm
Thursday: 9.00am - 5.00pm
Friday: 9.00am - 5.00pm
Saturday: 9.00am - 5.00pm
Sunday: Closed