Deliver it 17/24 days
Astrozap light protection sleeve for Ritchey-Chrétien Truss 20 tubes
If you want to protect your 20" Dobson telescope from dust and stray light, Astrozap has the ideal solution.
Carrier | Description | Estimated Delivery | ||
---|---|---|---|---|
Home delivery - International | Home delivery - International |
Tuesday, 19 November - Tuesday, 26 November |
Home delivery - International
Home delivery - International
Estimated delivery:
Tuesday, 19 November - Tuesday, 26 November
Astrozap light protective cover for Dobson SkyWatcher 20".
The protective covers are made of nylon and are one of those almost indispensable accessories for owners of Truss type telescopes, that is, for those equipments in which only the primary and secondary remain inside the tube and the rest of the tube is a support skeleton. Among these types of telescopes are the SkyWatcher retractable or extendable telescopes.
Protective sleeves offer two main advantages:
1. On the one hand, they prevent the circulation of moist air between the primary and secondary mirrors, thus preventing the appearance of dew on the surfaces of the two mirrors.
2. On the other hand, they prevent the entry of stray light rays that can degrade the quality of the images and spoil an observation.
Astrozap protective sleeves are manufactured in the USA from a nylon and cotton composite that is specially processed to fit the telescope rods perfectly. This maintains total flexibility while no part of the sleeve loses tension.
Astrozap light protection cover for Dobson SkyWatcher 20".