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====== Rings ====== In order to mount most telescopes to their mounts, astronomers use a type of clap called tube rings. These rings (marked in bright green) hold the telescope firmly in place. Make sure you buy the right size! Similar to tube rings are guide rings. These act the same as tube rings with one major difference. They allow the scope being held in them to be aimed. This is useful for guidescopes, because sometimes a guidescope needs to be moved to find a suitable star to guide on. This can also induce flexure, so make sure you purchase quality rings. You can also use tube rings for this purpose if you want to avoid flexure, but you will not have as much freedom to find a guide star. This is usually not much of a problem with today's more sensitive guidecams, but can still be an issue when you are shooting objects outside of the galactic plain.
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