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High Point 25mm Extension Tube for GSO 6" & 8" RC - RC825

This 25 mm Extension Tube for GSO 6" and 8" RC telescopes has been discontinued by the manufacturer and is no longer available. For a suitable alternative, here is our selection of similar sized extension tubes. If we can be of assistance, please don't hesitate to call us at 1-800-266-9590 or send us an email, and we will be happy to help you. Thank you!

High Point 25mm Extension Ring
for 6" & 8" GSO RC Astrographs

This 25mm Extension Tube is designed for the GSO 6" and 8" Ritchey-Chretien Astrographs and has M90 threads (female on one side, male on the other). It is meant to be placed between the telescope and the focuser to extend back focus by 25mm. You can stack different lengths of extension rings to achieve the back focus you require for your imaging set-up. With an extension added at this location, you won't have to extend the draw tube as far, which will minimize downward tilt with heavy loads.

All High Point Extension Rings are machined of aluminum and then black-anodized.