Altair 35mm extension tube 2x thumbscrews
The Altair 35mm extension tube is precisely machined for a perfect fit.
Altair extension tubes have two thumbscrews making them ideal for astro-photography and heavy eyepieces or binoviewers. The accessory is clamped firmly from two angles, reducing flex in the optical train, unlike other extension tubes which have only one thumbscrew.
A brass inner compression ring prevents marring your eyepieces or accessories, and the extension tube based is threaded to accept standard 2" filters.
This extension tube adds 35mm additional backfocus between your telescope focuser and eyepiece or camera and fits 2" focusers.
Most refractor telescopes require the use of an extension tube for straight-through use with a camera when the diagonal is removed.
Incl. VAT 20.00 % ( £82.50 )
Incl. VAT 20.00 % ( £3.00 )
Incl. VAT 20.00 % ( £179.17 )
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Where to buy Altair Astro products:
- Tring Astronomy Centre (Hertfordshire, Advanced Stockist)
- Green Witch (Birstal & Cambridge, Advanced Stockist)
- Telescope House (Kent, Advanced Stockist)
- Harrison Telescopes (Stockist)
- Rother Valley Optics (Stockist)
- Wex Photographic (Norwich, Stockist)
- Ian King Imaging (Kent, Stockist)
- Peak 2 Valley Instruments (Derbyshire, Stockist)
- Widescreen Centre (Cambridgeshire, Stockist)
- F1 Telescopes (Kent)
- Grovers (North Yorkshire)
- Io Astronomy Please note: IO Astronomy voluntarily ceased trading with large unpaid debts affecting the entire UK astronomy industry. You may contact us for problems / issues with Altair or iOptron products ONLY - or try Darkframe Optics / Dave Woods. Unfortunately, we will not be able to support undeclared products bought from the ex-directors after the company ceased trading.
- Artesky Italy, Europe
- Astromarket AST Optics Belgium, Europe
- Astro AS Denmark, Europe
- Astro Sweden Belgium, Europe
- Ktech Telescopes Ireland, Europe
- Pierro Astro France, Europe
- SkyVision France, Europe
- Teleskop Service Ransburg Germany, Europe
North America & Canada orders:
Products can be ordered online from Altair with tracked insured shipping to anywhere in the world. For large items shipping price may need to be re-quoted.
Russia orders: Please contact.
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