Tecnosky 0.8× Field Flattener and Reducer
When will I receive it?
Products marked In stock are dispatched promptly — the exact delivery estimate for your address is shown at checkout, before you confirm the order.
For international shipments, delivery times depend on the destination and are always displayed at checkout before payment.
Products marked Available on order require 5–15 business days for processing. Our team will keep you updated promptly if anything changes.
What are the warranty terms?
Shop with confidence: all our products include a 24-month legal warranty for conformity defects, managed directly by our team.
Many brands also offer extended warranty coverage beyond 24 months — contact us to find out the specific terms for the product you're interested in.
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Can I return a product?
Yes: you have 14 days from delivery to return any product and receive a full refund — see our Refund Policy for full details.
Items must be returned in their original condition and packaging. Return shipping costs are the customer's responsibility.
Not sure which product is right for you? Contact us before buying — we'll help you find the perfect instrument so you won't need to return anything.
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Vai al moduloTecnosky 0.8× Field Flattener & Reducer – Universal for Refractors
The Tecnosky 0.8× flattener/reducer features a 4-element optical design and is intended for refractors with a 2" focuser. Optimized for focal lengths between 400 mm and 600 mm, but also compatible with longer focal lengths. It provides effective field curvature correction and a focal reduction ideal for astrophotography.
On the telescope side, it fits directly into any 2" focuser. On the camera side, it offers a standard T2 thread (M42×0.75 mm) for easy connection to astro cameras or DSLR systems with T-rings.
Main features
- 0.8× focal length reduction
- 4-element design for improved field and chromatic correction
- Universal compatibility with 2" focusers
- T2 (M42×0.75 mm) camera thread
Recommended backfocus by focal length
| Telescope focal length | Recommended backfocus |
|---|---|
| ≤ 350 mm | 70 mm |
| ≤ 420 mm | 65 mm |
| 450–500 mm | 61 mm |
| 510–600 mm | 58 mm |
| 610–700 mm | 57 mm |
| 710–790 mm | 56 mm |
| ≥ 800 mm | 55 mm |