Focusing aids

Mechanisms to assit in the focusing of your telescope. These range from simple tools which allows the user to check alignment, camera adjustment and focus through three ports - to parfocalizing rings which essentially stops the drawtube at a precise focal point. Included in this category are many fine micro-focusers as well.  Also included is telescope focuser accessories that goes into the focuser, e.g. eyepiece adapters, control cables, accessory ports, compression rings, reverse cables, visual back adapters, micron indicators, extension tubes, T-thread adapters, etc.

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