BuckeyeStargazer TriBahtinov Mask for Collimation and Focus - For GSO Classical Cassegrain (CC) Telescopes
Contiguous US / Lower 48:
Free shipping applies to orders over $50 using our chosen carrier/method. Faster paid options are available at checkout.
Alaska, Hawaii & US Territories:
Free shipping applies to many—but not all—products. Enter your ZIP code in cart or upon checkout to confirm options and costs.
International:
International orders do not qualify for free shipping. Shipping, duties, brokerage, tariffs, and taxes are the customer’s responsibility. Some items may be restricted due to export, size, or manufacturer limitations.
GSO Telescope TriBahtinov Mask
Please note that this is a 3d printed plastic part.
A TriBahtinov mask operates under the same principle as the Bahtinov mask for focusing and adds the ability to collimate scopes with collimatable optics.
The design is based on Cytan's idea, documented on his Github site here where you can see more details and images of this item in use.
The mask has a raised center for an easy grip and comes in three sections that snap fit together and can be taken apart for easier storage.
The GSO RC and CC mask sizes are not the same, so please ensure that you select the correct version for your telescope.
Sizes:
- 8CC (GSO8CC): GSO 8" Classical Cassegrain (Astro-Tech, TPO, iOptron, Orion, etc.)
BuckeyeStargazer's items are made of PETG plastic and can handle temperatures of up to 80°C (175°F).
Other Information
- Country of Manufacture: United States
GSO Telescope TriBahtinov Mask
Please note that this is a 3d printed plastic part.
A TriBahtinov mask operates under the same principle as the Bahtinov mask for focusing and adds the ability to collimate scopes with collimatable optics.
The design is based on Cytan's idea, documented on his Github site here where you can see more details and images of this item in use.
The mask has a raised center for an easy grip and comes in three sections that snap fit together and can be taken apart for easier storage.
The GSO RC and CC mask sizes are not the same, so please ensure that you select the correct version for your telescope.
Sizes:
- 8CC (GSO8CC): GSO 8" Classical Cassegrain (Astro-Tech, TPO, iOptron, Orion, etc.)
BuckeyeStargazer's items are made of PETG plastic and can handle temperatures of up to 80°C (175°F).
GSO Telescope TriBahtinov Mask
Please note that this is a 3d printed plastic part.
A TriBahtinov mask operates under the same principle as the Bahtinov mask for focusing and adds the ability to collimate scopes with collimatable optics.
The design is based on Cytan's idea, documented on his Github site here where you can see more details and images of this item in use.
The mask has a raised center for an easy grip and comes in three sections that snap fit together and can be taken apart for easier storage.
The GSO RC and CC mask sizes are not the same, so please ensure that you select the correct version for your telescope.
Sizes:
- 8CC (GSO8CC): GSO 8" Classical Cassegrain (Astro-Tech, TPO, iOptron, Orion, etc.)
BuckeyeStargazer's items are made of PETG plastic and can handle temperatures of up to 80°C (175°F).
Other Information
- Country of Manufacture: United States
BuckeyeStargazer TriBahtinov Mask for Collimation and Focus - For GSO Classical Cassegrain (CC) Telescopes