Artesky Bahtinov Mask 85-120
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 moduloArtesky Bahtinov Mask: precise focusing for astrophotography
The Artesky Bahtinov mask is an essential tool in astrophotography for quickly and accurately achieving the ideal focus of your telescope. Compatible with all optical instruments, the size indicated refers to the external tube diameter in millimetres. This version is suitable for telescopes with an external tube diameter of 85 to 120 mm.
How it works
Place the mask in front of the telescope aperture and point at a bright star. A flattened X with a central line will appear on your monitor or camera screen:
- If the central line is above or below the centre of the X → the focus is intra- or extra-focal: adjust the focus
- When the line is exactly in the centre of the X → the image is in perfect focus
Key features
- Compatible with all telescope types
- Suitable for tubes with external diameter 85 to 120 mm
- Comes with 3 locking screws for secure attachment
- Simple and immediate to use
- Essential for astrophotography focusing
Technical specifications
| Brand | Artesky |
|---|---|
| Compatible tube diameter | 85 – 120 mm (external) |
| Fastening | 3 locking screws |
| Use | Astrophotography, star focusing |